System and method for validating video gaming data

Information

  • Patent Grant
  • 10463971
  • Patent Number
    10,463,971
  • Date Filed
    Wednesday, December 6, 2017
    7 years ago
  • Date Issued
    Tuesday, November 5, 2019
    5 years ago
Abstract
The present specification describes systems and methods for filtering a video game user's match performance data or loadout data through validation mechanisms. For the performance data, the validated, signed performance data are written to a leaderboard service of the video gaming system. For the loadout data, the validated, signed performance loadout data are transmitted back to the client device and used when playing a game. Free computing and/or networking resources of the client game device are used as an intermediate between the client devices, validation services, and/or leaderboard services.
Description
FIELD

The present specification is related generally to the field of video gaming. More specifically, the present specification is related to systems and methods for filtering and validating a first player's loadout data so that the gaming systems of other players can determine whether the first player is playing a game using invalidated, unauthorized, or improperly obtained resources.


BACKGROUND

To deliver, enable, and host multi-player video game sessions, it is essential that various types of video game data be validated and authenticated. Failure to properly validate video game data could result in 1) the inaccurate ranking of players, 2) the rewarding of players who choose to improperly acquire resources, 3) disadvantaging players who engage with the game in accordance with the established rules, and 4) the general destruction of the quality of game play, as players start to believe that gameplay results are governed more by cheating than by skill. It is therefore imperative to insure that all video game data is properly filtered, validated, and/or authenticated.


For example, in many video games, a player may compete against another player either in person or via an online platform that integrates the play of multiple players through a network. Sometimes, when players play a game, they store, on their client device, a “loadout” that comprises data representative of the outfits, weapons, guns, grenades, ammunition, abilities, and other items (cosmetic or functional) owned by, or accessible to, a player's character. When playing a multiplayer game, those loadouts are transmitted from one client device to the client devices of other players so the character may be properly represented in the gaming environment of other players. Additionally, many online games offer “leaderboards” which allow a player to judge their performance in a particular game play session relative to other game players. Most leaderboards measure a level achieved and certain standard statistics, such as the amount of time played to achieve the level. Simple performance metrics are often used to display basic performance statistics. Examples of such metrics include the number of kills, kill/death ratio, scores, achievements, timings, and levels passed. This data is transmitted by a game client running on the player's home console or personal computer (PC) to the leaderboard service hosted at the back end of the gaming system.


Video game data, such as the loadout and leaderboard data described above, are susceptible to hacking, thereby potentially giving a player's character resources or representing scores it otherwise would not have had. Specifically, one of the major challenges encountered by video game leaderboard programs in providing detailed real time performance data for each player is to ensure that the data is both accurate and truthful. Compromised console hardware is often used at the client end to send modified game statistic data to the leaderboard service. For example, debugging or PC hacking tools may be used to modify data stored in a memory on a PC or a console. Users at home can attach a debugger or other tools to the running game to modify the data directly within the memory and set it to any value they want, before it is sent to the leaderboards service. Once a game console is modified, data from that game console cannot be trusted as the game client can be manipulated to send any information directly to the leaderboards in the absence of any intermediary checks to ensure the validity of the data. The problem is compounded in that the game backend is riddled with management of large amounts of data from numerous players based on non-standard game statistics. Therefore it becomes difficult to run validation checks at the backend on every data entry.


Some gaming systems use post-match validation systems on the game client to ensure that the game log appears reasonable and to identify evidence of boosting statistics or collusion or tampering with the leaderboard. However, client-side validation cannot be trusted because once the client is compromised, any data can be tampered with. Further, typically with online multiplayer games, very little historical information about a player is available on the game client, such as a console, PC or mobile device, which is important for validating statistics of the game last played. This is because such a feature is bandwidth and memory intensive, as it requires the player information to be loaded and saved between matches. It is not feasible to store and manage large amounts of historical performance information, as the data would have to be uploaded each time a match is played.


The same issue applies to loadout data. Compromised console hardware may be used at the client end to send modified loadout data to other client devices. For example, debugging or PC hacking tools may be used to modify loadout data stored in a memory on a PC or a console and improperly associate resources, such as weapons, ammunition, clothing, powers, abilities, and other assets, with the player's profile. Once a game console is modified, loadout data from that game console cannot be trusted as the game client can be manipulated to send any information directly to other client devices in the absence of any intermediary checks to ensure the validity of the data. One could solve part of the problem by having the client devices of other players upload the loadout of a player to a backend to validate the loadout of the player, but this can be resource intensive and highly duplicative (since multiple client devices would be independently trying to validate the same loadout).


Therefore, there is a need for methods and systems that address the above challenges and provide performance and/or loadout data in real time to the players that is both accurate and validated. Such a system should be capable of overcoming the drawbacks of client-side validation and provide a validation service that is remote yet secure, without being bandwidth or memory intensive.


SUMMARY

The following embodiments and aspects thereof are described and illustrated in conjunction with systems, tools and methods, which are meant to be exemplary and illustrative, and not limiting in scope. The present application discloses numerous embodiments.


In some embodiments, the present specification discloses a method for validating loadout data in a video game system, the video game system comprising a gaming program, configured to execute in a client device, and which, when executed, generates a video game to be played by a user, said client device having a processor and a random access memory, wherein said processor is in data communication with a display and with a storage unit, and at least one server device having a server processor and a plurality of programmatic instructions stored in a non-transient memory, wherein said plurality of programmatic instructions are executed by the server processor to run a validation service, the method comprising: transmitting loadout data by the gaming program to the at least one server device running the validation service, wherein the loadout data is stored in the client device and representative of virtual resources or virtual assets assigned to a virtual player controlled by the user in the video game; determining if the loadout data are valid using a validation mechanism executed by the validation service; and if the loadout data is valid, generating a signed payload of the loadout data and transmitting the signed payload of the loadout data from at least one server device executing validation service to the gaming program executing in the client device.


Optionally, the validation mechanism validates the loadout data by comparing the loadout data to a database of known attributes of the user's virtual character.


Optionally, comparing the loadout data comprises comparing the loadout data to a purchase history of the user.


Optionally, generating the signed payload of the loadout data comprises applying a digital signature to the payload of the loadout data.


Optionally, the method further comprises transmitting the signed payload of the loadout data to other client devices executing the video game using the client device.


Optionally, if the loadout data is not valid, generating a flagged payload of the loadout data, wherein said flagged payload indicates that the loadout data cannot be used in association with the user's virtual player in the video game.


Optionally, the method further comprises storing the flagged payload in at least one database for further analysis.


Optionally, the loadout data comprises any data representative of the virtual resources or assets associated with the virtual player and includes at least one of outfits, weapons, guns, grenades, ammunition, clothing, shields, defenses, powers, health, looks, or treasure.


In some embodiments, the present specification discloses a video game system for validating loadout data, comprising: a client device, configured to execute a gaming program, wherein, when executed generates a video game to be played by a user and wherein said client device comprises a processor and a random access memory, wherein said processor is in data communication with a display and with a storage unit; and, at least one server device having a server processor and a plurality of programmatic instructions stored in a non-transient memory, wherein said plurality of programmatic instructions are executed by the server processor to run a validation service, wherein said system: transmits loadout data via the gaming program to the at least one server device running the validation service, wherein the loadout data is stored in the client device and representative of virtual resources or virtual assets assigned to a virtual player controlled by the user in the video game; determines if the loadout data is valid using a validation mechanism executed by the validation service; generates a signed payload of the loadout data, if the loadout data is valid; and, transmits the signed payload of the loadout data from at least one server device executing validation service to the gaming program executing in the client device.


Optionally, the validation mechanism validates the loadout data by comparing the loadout data to a database of known attributes of the user's virtual character.


Optionally, comparing the loadout data comprises comparing the loadout data to a purchase history of the user.


Optionally, generating the signed payload of the loadout data comprises applying a digital signature to the payload of the loadout data.


Optionally, the client device is used to transmit the signed payload of the loadout data to other client devices executing the video game.


Optionally, if the loadout data is not valid, the system generates a flagged payload of the loadout data, wherein said flagged payload is indicative that the loadout data cannot be used in association with the user's virtual player in the video game.


Optionally, the system further comprises at least one database for storing the flagged payload for further analysis.


Optionally, the loadout data comprises any data representative of the virtual resources or assets associated with the virtual player and includes at least one of outfits, weapons, guns, grenades, ammunition, clothing, shields, defenses, powers, health, looks, or treasure.


The aforementioned and other embodiments of the present specification shall be described in greater depth in the drawings and detailed description provided below.





BRIEF DESCRIPTION OF THE DRAWINGS

These and other features and advantages of the present specification will be further appreciated, as they become better understood by reference to the following detailed description when considered in connection with the accompanying drawings:



FIG. 1 is a block diagram illustration of a client-server architecture of a gaming system, in accordance with embodiments of the present specification;



FIG. 2a illustrates a data flow between a game client device and a game server, in accordance with one embodiment;



FIG. 2b illustrates the data flow between a game client device and a validation service, in accordance with one embodiment;



FIG. 2c illustrates the data flow between a game client device and a leaderboard service, in accordance with one embodiment of the present specification;



FIG. 3 illustrates an exemplary GUI displaying leaderboard results for a game;



FIG. 4 is a flowchart illustrating steps for validating leaderboard data, in accordance with one embodiment of the present specification;



FIG. 5 is a block diagram illustration of another client-server architecture of a gaming system, in accordance with embodiments of the present specification; and



FIG. 6 is a flowchart illustrating steps for validating loadout data, in accordance with one embodiment of the present specification.





DETAILED DESCRIPTION

The present specification describes systems and methods for filtering a video game user's match performance data through validation mechanisms, and transmitting and writing the validated, signed performance information to the leaderboard service of the video gaming system. In one embodiment, the present method uses the free computing and/or networking resources of the game device or console and uses it as an intermediary between the validation and leaderboard services. This ensures that the validation mechanism and leaderboard service are not dependent on each other for functionality. That is, if one service is not working, the other can still function. For example, if the leaderboard service is inaccessible or inoperative, the validation service can still validate match data from all the games. In one embodiment, the validation service stores relevant data payloads in the client game console or device until the leaderboard service resumes.


The present specification describes systems and methods for filtering a video game user's loadout data through validation mechanisms, and transmitting and writing the validated, signed performance information to other client devices. In one embodiment, the present method uses the free computing and/or networking resources of the game device or console to transmit loadout data, local to the game device, to a validation server. The validation server analyzes the loadout data to determine if the loadout data is authentic, authorized, and/or has been tampered with. If successfully validated, the loadout data is signed, transmitted back to the originating client, and then transmitted to other client devices. If not successfully validated, the loadout data is flagged and the originating player is prevented from using that loadout data in a gameplay session.


The present specification is directed towards multiple embodiments. The following disclosure is provided in order to enable a person having ordinary skill in the art to practice the invention. Language used in this specification should not be interpreted as a general disavowal of any one specific embodiment or used to limit the claims beyond the meaning of the terms used therein. The general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the invention. Also, the terminology and phraseology used is for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present invention is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For purpose of clarity, details relating to technical material that is known in the technical fields related to the invention have not been described in detail so as not to unnecessarily obscure the present invention.


In the description and claims of the application, each of the words “comprise” “include” and “have”, and forms thereof, are not necessarily limited to members in a list with which the words may be associated. It should be noted herein that any feature or component described in association with a specific embodiment may be used and implemented with any other embodiment unless clearly indicated otherwise.


In the description and claims of the application, the term “leaderboard data” shall mean any data which is representative of a player's performance in one or more games, including, but not limited to, numerical scores, times, number of kills, number of points earned, degree of health, degree of level, degree of skill, degree of power, degree of wealth or other performance measurements.


In the description and claims of the application, the term “loadout data” shall mean any data which is representative of the virtual resources or assets associated with a player's virtual character in a game, including, but not limited to, outfits, weapons, guns, grenades, ammunition, clothing, shields, defenses, powers, health, looks, treasure, or other virtual cosmetic or functional assets.


As used herein, the indefinite articles “a” and “an” mean “at least one” or “one or more” unless the context clearly dictates otherwise. The disclosed inventions are directed to an improvement in computer-related technology, namely allowing video game platforms to generate valid and accurate leaderboard data with a decreased risk of corruption or tampering or to generate valid and accurate loadout data with a decreased risk of corruption or tampering, and thus does not recite an abstract idea or concept. In particular, Applicant's specification discloses specific teachings regarding how the claimed inventions improve the validation of leaderboard data or loadout data and are not simply directed to patenting “validated data”. Accordingly, Applicant's claimed inventions do not preempt all approaches to obtaining validated leaderboard or loadout data and, instead, are directed to an improvement in video gaming technology grounded firmly in a specific way of achieving the desired outcome of having validated leaderboard data. To the extent the claimed inventions are still considered to be “abstract” in nature, it should be appreciated that each of the claim limitations, when viewed as an ordered combination, amount to significantly more than just an abstract idea or concept.



FIG. 1 illustrates a gaming system 100, in accordance with an embodiment of the present specification. The system 100 comprises client-server architecture, where one or more game servers 105 are in communication with one or more client devices 110 over a network 115. Users may access the system 100 via the client devices 110 that may include, but not be limited to, personal or desktop computers, laptops, Netbooks, handheld devices such as smartphones, tablets, and PDAs, gaming consoles and/or any other computing platform known to persons of ordinary skill in the art. Although three client devices 110 are illustrated in FIG. 1, any number of client devices 110 can be in communication with the one or more game servers 105 over the network 115. The one or more game servers 105 are responsible for hosting, running, or executing the video game.


The one or more game servers 105 can be any computing device having one or more processors and one or more computer-readable storage media such as RAM, hard disk or any other optical or magnetic media. The one or more game servers 105 include a plurality of hardware, software, and/or firmware components operating together to provide or implement a plurality of functional, operational or service-oriented modules. In some embodiments, the one or more game servers 105 include or are in communication with a game database system 135. The game database system 135 stores a plurality of game data associated with at least one game that is served or provided to the client devices 110 over the network 115. In one embodiment, the game database system 135 comprises a plurality of databases, each storing a different kind of data. For example, data associated with leaderboard or gameplay results may be stored in a different database, while error reports associated with a game may be stored in a different database. In some embodiments, the one or more game servers 105 may be implemented by a cloud of computing platforms operating together as game servers 105. In embodiments, the game server is another home console, a personal computing device, such as a laptop or tablet PC, or a dedicated server.


In accordance with aspects of the present specification, the one or more game servers 105 provide or implement a plurality of modules such as, but not limited to, a master game module 120, a validation module 125 and a master leaderboard module 130. In one embodiment, the validation module 125 and the master leaderboard module 130 are hosted on a cloud of computing platforms, collectively known as the backend. In the following description, the terms ‘game server’ and ‘backend’ are used interchangeably. In some embodiments, the one or more client devices 110 are configured to implement or execute one or more of the plurality of modules that are the same as or similar to the modules of the one or more game servers 105. For example, in some embodiments the client devices 110 execute a client-side game module 120′.


It should be appreciated that the term ‘module’ refers to computer logic utilized to provide a desired functionality, service or operation. In various embodiments, a module can be implemented in hardware, firmware and/or software controlling a general purpose processor. In one embodiment, the modules are programmatic codes or computer executable instructions stored on a storage system, such as the game database system 135, and executed by a processor. It should further be appreciated that the terms “service”, “procedure”, or “method” refer to processes that are implemented by server engines which are specific programmatic structures implemented in either software or hardware. Accordingly, a validation service may be alternatively referred to as a validation server implemented in a form of a plurality of programmatic instructions stored in a non-transient memory and executed by one or more processors.


In embodiments, the master game module 120 is configured to execute an instance of an online game to facilitate interaction of the users with the game. In embodiments, the instance of the game executed may be synchronous, asynchronous, and/or semi-synchronous. The master game module 120 controls aspects of the game for all users and receives and processes each user's input in the game. For example, the master game module 120 may host the online game for users of a particular game, receive game data from the client devices 110 and transmit updates to client devices 110 based on the received game data so that the game, on each of the client devices 110, represents the most updated or current status with reference to interactions of all users with the game. Thus, the master game module 120 transmits the game data over the network 115 to the client devices 110 for use by the game module 120′ at the client devices 110 to provide local versions and current status of the game to the users.


On the client-side, each of the one or more client devices 110 implements the game module 120′ that operates as a gaming application to provide a user with an interface between the user and the game. The game module 120′ generates the interface to render a virtual environment, virtual space or virtual world associated with the game and enables the user to interact in the virtual environment to perform a plurality of game tasks and objectives. The game module 120′ accesses game data received from the game server 105 to provide an accurate representation of the game to the user. The game module 120′ captures and processes user inputs and interactions within the virtual environment and provides updates to the game server 105 over the network 115. In embodiments, the game module 120′ captures and stores a plurality of statistical data or leaderboard data generated as a result of the user's interactions with the virtual environment of the game. The captured and stored leaderboard data is communicated back to or uploaded to the game server 105 in real-time, periodically (such as through batch updates) during a game and/or at an end of the game. The game module 120′ accesses updated or most current leaderboard data from the game server 105 and presents or displays the accessed leaderboard data via one or more leaderboard GUIs (Graphical User Interface) to the user.


The game server 105 is preferably configured to concurrently communicate with at least 20 client devices, and more preferably 20 to 1,000,000 client devices or any increment therein, such that each of said at least 20 client devices are permitted to concurrently upload leaderboard data to the game server. In another embodiment, the game server is configured to concurrently host at least 5 leaderboard data transactions per second, preferably 50-150 leaderboard data transactions per second, with the plurality of client devices.



FIGS. 2a, 2b and 2c are a series of figures that illustrate the data flow between various components of FIG. 1. Referring to FIG. 2a, the data flow between a game client 201 and a game server 202 is shown. As explained above, a game client comprises a user's home console, personal computer, mobile device or smartphone or any other computing platform capable of being connected to the internet and capable of rendering a video game to be played by the user. During gameplay, the game client 201 communicates with at least one game server 202, which may be a dedicated server or another home based console or computing device, or a computing platform hosted on cloud. In accordance with aspects of the present specification, a plurality of game data is communicated between the client device 201 and the game server 202. This data may be broadly categorized into a first set of data referred to as game-rendering data and a second set of data referred to as leaderboard data. The game-rendering data is associated with accurate rendering, execution or implementation of the online game to all users on their corresponding client devices. In embodiments, the game-rendering data comprises data such as, but not limited to:


a) Data associated with successful and accurate generation of a virtual environment or simulation space of the game. For example, audio-visual and/or graphics data necessary to render the virtual environment on a display screen of the client devices 201 and virtual objects or virtual elements data such as the various types, objectives and behaviors of virtual elements, objects and characters associated with the game;


b) Game target data including data related to the current game targets, goals or objectives as well as data related to the past, present and future status of the targets, goals or objectives of the game;


c) Data related to the users or players of the game. For example, user's identification data (such as a unique login or username and password), user's geographical location data (such as an IP address of the client device of the user), user's experience level or expertize with reference to playing the game, user's preferences, user-controlled virtual character or avatar and its permissible behaviors as well as customizations at various levels of the game, current number of users; and,


d) Game identification data related to identification of an instance of the game being played by the users including the timestamp related to when a particular game instance was played by a particular user.


The leaderboard data is associated with a plurality of user related metrics, scoring or statistics and/or in-game event data generated as a result of the user's interactions with the virtual environment of the game. In embodiments, the leaderboard data comprises data such as, but not limited to:


a) Data related to a plurality of scoring events that occur during a match. For example, high scores, kills or captures, fastest time periods to achieve certain scores, clearing or achieving specific game levels and/or win specific matches by a set of ‘N’ number of top performing users, ranking of the user with reference to the top ‘N’ users; and,


b) Data associated with in-game events such as, but not limited to, movement of the user throughout the virtual environment or topographical map of the game, interaction of the user's avatar with various virtual characters or elements in the game, virtual elements or items used and/or won, damage taken, perks acquired.


It should be appreciated that the leaderboard data will vary depending upon the type, nature and objectives of the game and therefore encompasses any gameplay data relevant to and defined for a particular type of game and its objectives.


In the present specification, the leaderboard data may be referred to as a) client-side or user-specific leaderboard data generated and stored at the client device 201 (as a result of a user playing a game) and communicated back or uploaded to at least one game server 202 or backend, and b) master leaderboard data stored at a game server 202 or backend as a result of processing of leaderboard data received from all client devices of all users. The master leaderboard data is updated with client-side leaderboard data received from all client devices and therefore is representative of comprehensive leaderboard data encompassing the results of all users' interactions with the virtual environment of the game.



FIG. 2b illustrates the flow of data between a validation service 213 of the gaming system and a game client 211. Referring to FIG. 2b in conjunction with FIG. 1, the validation service 213 is implemented via a validation module 125 running on a game server or backend of the gaming system. In embodiments, the validation service 213 is configured to receive client-side leaderboard data generated at a client device 211 and validate the received leaderboard data. In the embodiment of FIG. 2b, the game client 211 reports the user's results after a game, which comprise the client-side leaderboard data, directly to the validation service 213. In one embodiment, this data is received by the validation service directly from the game modules 120′ (shown in FIG. 1) of the client devices 110. In alternate embodiments, the client-side leaderboard data is accessed from the master game module 120 that in turn receives the client-side leaderboard data from the game modules 120′ of the client devices 110.


Still referring to FIG. 2b, in accordance with a further aspect of the present specification, the validation service 213 processes and analyzes the client-side leaderboard data to determine if the client-side leaderboard data is valid, legitimate, authentic or bona fide and has not been manipulated, altered or tampered with at the client device 211 and/or during transmission from the client device 211 to the backend. In various embodiments, the validation service 213 applies at least one of a plurality of validation procedures or validation methods to the client-side leaderboard data to determine if the data has been manipulated in any way. In some embodiments, the plurality of validation methods are software programmatic instructions stored in the game database system, or in one or more computer-readable storage media of the game servers, in other embodiments.


It should be appreciated that the plurality of validation methods are aimed or directed towards ensuring that the client-side leaderboard data is logical. For example, the plurality of validation methods check data time stamps, look for negative values, impossible values, and corrupt match data. In other words, the plurality of validation methods process the client-side leaderboard data for clues or indications to determine if the data has been modified, such as by a human, and if the data did not come directly from the game itself.


It would be evident to persons of ordinary skill in the art that the plurality of validation methods will vary depending upon the type, nature and objectives of a game and therefore the different types of metrics, points, scoring or statistics and/or in-game event data forming the client-side leaderboard data. The validation methods will also programmatically receive data from a client device and subject it to a plurality of programmatic routines to examine or compare the value of the received data against one or more other data stored in local or remote memory by accessing a memory address of the stored predetermined values, or acceptable values, and performing a programmatic comparison of the received results data with the stored predetermined values.


In accordance with non-limiting examples the plurality of validation procedures or methods may comprise (to determine if data has been tampered with): checking that the score, points or achievements of a team or a single user (player) does not exceed a predefined threshold; checking that an increase in a level of a team or player does not exceed a predefined threshold; checking that rewards, such as money, earned by a team or player does not exceed a predefined threshold; in an exemplary racing game, checking that the race is not completed under a minimum threshold time; checking that a number of virtual elements or items gained by a team or player does not exceed a predefined threshold; and/or checking for occurrences of unlikely or impossible in-game events. For example, but not limited to such examples, tampered gameplay and/or data may be in the form of a player in a basketball game making baskets from beyond a certain predetermined distance from a hoop; a player in a FPS shooting an enemy from beyond a certain predetermined distance; a player moving around the topographical map or virtual map in impossible ways (e.g., “teleports”), or a player or vehicle appears to have unlimited ammunition, health, armor or any other types of virtual elements relevant to the game.


In one embodiment, the limits or thresholds verified by the validation procedures for a game are based on those set by the developer for the particular game. In some embodiments, data regarding limits and thresholds for game metrics are stored in a table in the database associated with the game server, from where it can be accessed by the validation service. One of ordinary skill in the art would appreciate that the applicable limits and thresholds can change depending on the situation, type of game, level of game and the like. In one embodiment, the stored limits and thresholds are continually updated by the game server in the associated database.


If the validation service 213 detects any evidence of tampering within the client side leaderboard data using any of the validation mechanisms it encompasses, as described above, the service discards the tampered gameplay results that were reported. Further, in one embodiment, the failure or rejection of results is recorded and the results that failed the validation tests are stored in a game database 214 for further analysis. Such data stored for analysis may include information such as user ID, console or device ID on which the game was played, device OS details, game version, gameplay or match duration and timestamp, and the detailed statistics generated from the game play.


If the client side leaderboard data successfully pass the validation tests, the validation service 213 encrypts the game results and transmits a signed payload of results back to the game client 211. It may be appreciated that the game client 211 acts as an intermediary between the validation service 213 and the leaderboards service, which are both hosted at the backend of the gaming system. Therefore, the client side leaderboard data, after successful validation is encrypted in a manner such that it cannot be tampered with by the user at the game client 211. Exemplary algorithms that may be used to encrypt and/or sign information payloads before transmission from the validation service or module to the game client include JOSE JWS Signing (HMAC using SHA-256 hash algorithm); Public Key Encryption; and other encryption methods known in the art that may be employed for the purpose, so long as they serve the purpose of securing the data such that it cannot be tampered with at the client end.



FIG. 2c illustrates the flow of data between a leaderboard service 223 of the gaming system and a game client 221. Referring to FIG. 2c, after receiving the signed payload of results from the validation service, the client device 221 transmits the results to the leaderboard service 223. In one embodiment, the leaderboard service 223 is implemented by means of a leaderboard module 130 (shown in FIG. 1) running on a game server 105 or backend of the gaming system. The leaderboard data, as explained earlier, comprises relevant statistical data for games that is recorded by leaderboards. Examples of such data include, but are not limited to, number of wins, losses, kills, deaths, duration of game play, and/or levels achieved. It may be appreciated that leaderboard data in the context of the present specification encompasses any data relevant to a leaderboard for any genre of any game.


The leaderboard data which has been validated by the validation service as being untampered, is sent as an encrypted payload of information to the client device, which, in turn, uploads it to the leaderboard service 223. The signed payload of information is encrypted in manner such that it can be read or decrypted by only the leaderboard service 223. Upon receiving the signed payload from the client 221, the leaderboard service 223 attempts to decrypt the payload. If the leaderboard service 223 fails to decrypt the payload, the data is deemed as invalid or as having been tampered with. In this case, the payload of gameplay results is discarded. Further, in one embodiment, the failure or rejection of payload is recorded and the payload that failed decryption at the leaderboard service 223 is stored in a game database 224 for further analysis. If the leaderboard service 223 succeeds in decrypting the signed payload of information, the decrypted game results are transmitted to another database 225 to be recorded in the game leaderboard. One of ordinary skill in the art would appreciate that the same encryption algorithms that are used by the validation service for encrypting the results and creating a signed payload, are used by the leaderboard service 223 to decrypt the payload of results. In one embodiment, the signed payload also contains specific information or data that can be only read by the leaderboard service 223 and used for decrypting the statistical information in the payload.


An image of the successfully recorded leaderboard results is subsequently rendered via a GUI on a display associated with the client device. An exemplary leaderboard image 300 is illustrated in FIG. 3.


It may be noted that the validation and leaderboard services, as per the embodiments of the present specification, are distinct services. By obtaining the results from the client device, validating the results and returning a signed payload back to the client device, before it is sent to the leaderboard service, the two services remain independent and do not depend on each other for functionality or operation. In other words, if the leaderboard service is not working or functional, the game results can still be validated. Further, the validated results may be uploaded to the leaderboard service whenever the network and computing environment at both the client end and the game backend are conducive. This feature also takes advantage of the free computing power at a client device, such as a game console's free computing power, and avoids bottleneck problems encountered in networks. This leads to improved speed for users playing the video game and enhanced scalability for game makers.



FIG. 4 is a flowchart illustrating a method of validating leaderboard data, in accordance with an embodiment of the present specification. Referring to FIG. 4, in the first step 401, a game or match is completed by the user at a client device, such as a game console, computer or a mobile device. In the next step 402, the client device uploads the match data and game results to the validation service running at the server end or backend of the gaming system. Validation mechanisms are run on the reported match data and results in step 403, and a check is performed for invalid results in step 404. If either or both of invalid results or data tampering are detected, the results are rejected, as shown in step 405. If the data is found to be valid and untampered, the validation service returns a signed payload to the client device, in step 406. The signed payload comprises the match results and game statistics in encrypted form. In the next step 407, the game client uploads the signed payload to the leaderboard service. This step may be executed after the completion of each match, when the validated payload is received, or it may be scheduled for later if the network conditions are not conducive to the transfer. Thereafter, in step 408, the leaderboard service examines the signed payload to check if the data is valid and attempts to decrypt the data in the payload. If the leaderboard service is successful in decrypting the signed payload, the relevant results are committed to the memory or database associated with the game leaderboards, as shown in step 409. Otherwise, as shown in step 405, the results are rejected. Optionally, the results rejected by the validation service or the leaderboard service are recorded in a separate database, to be analyzed later by game developers.



FIG. 5 illustrates a gaming system 500, in accordance with another embodiment of the present specification. System 500 comprises client-server architecture, where one or more game servers 505 are in communication with one or more client devices 510 over a network 515. Users may access system 500 via client devices 510 that may include, but not be limited to, personal or desktop computers, laptops, Netbooks, handheld devices such as smartphones, tablets, and PDAs, gaming consoles and/or any other computing platform known to persons of ordinary skill in the art. Although three client devices 510 are illustrated in FIG. 5, any number of client devices 510 can be in communication with the one or more game servers 505 over network 515. Each server 505 is responsible for hosting, running, or executing video games played by users of client devices 510.


Server 505 can be any computing device having one or more processors and one or more computer-readable storage media such as RAM, hard disk or any other optical or magnetic media. Server 505 includes a plurality of hardware, software, and/or firmware components operating together to provide or implement a plurality of functional, operational or service-oriented modules. In some embodiments, server 505 includes or is in communication with a game database system 535. Game database system 535 stores a plurality of game data associated with at least one game that is served or provided to client devices 510. In one embodiment, game database system 535 comprises a plurality of databases, each storing a different kind of data. For example, one database may include data related to known attributes of each player's character. Those known attributes may have been gathered based upon what a player has purchased in the marketplace, or based on prior uploads of data from completed games, or any other. More specifically, such a database may comprise data representative of the virtual resources or assets associated with a player's virtual character in a game, including, but not limited to, outfits, weapons, guns, grenades, ammunition, clothing, shields, defenses, powers, health, looks, treasure, or other virtual cosmetic or functional assets. Another database may include data related to error reports or flagged data associated with a game or a player. In some embodiments, server 505 may be implemented by a cloud of computing platforms operating together as game servers 505. In embodiments, server 505 is another home console, a personal computing device, such as a laptop or tablet PC, or a dedicated server.


In accordance with aspects of the present specification, server 505 includes a plurality of modules such as, but not limited to, a master game module 520a, and a validation module 525. In one embodiment, validation module 525 is hosted on cloud of computing platforms, collectively known as the backend. In the following description, the terms ‘game server’ and ‘backend’ are used interchangeably. In some embodiments, client devices 110 are configured to implement or execute one or more of the plurality of modules that are the same as or similar to the modules of the one or more game servers 505. For example, in some embodiments the client devices 110 execute a client-side game module 520b.


It should be appreciated that the term ‘module’ refers to computer logic utilized to provide a desired functionality, service or operation. In various embodiments, a module can be implemented in hardware, firmware and/or software controlling a general purpose processor. In one embodiment, the modules are programmatic codes or computer executable instructions stored on a storage system, such as the game database system 535, and executed by a processor.


In embodiments, master game module 520a is configured to execute an instance of an online game to facilitate interaction of the users with the game. In embodiments, the instance of the game executed may be synchronous, asynchronous, and/or semi-synchronous. Master game module 520a controls aspects of the game for all users and receives and processes each user's input in the game. For example, master game module 520a may host the online game for users of a particular game, receive game data from client devices 510 and transmit updates to client devices 510 based on the received game data so that the game, on each of the client devices 510, represents the most updated or current status with reference to interactions of all users with the game. Thus, master game module 520a transmits the game data over network 515 to client devices 510 for use by the game module 520b at client devices 510 to provide local versions and current status of the game to the users.


On the client-side, each client device 510 implements game module 520b that operates as a gaming application to provide their users with an interface with the game. Game module 520b generates the interface to render a virtual environment, virtual space, or virtual world associated with the game and enables the user to interact in the virtual environment to perform a plurality of game tasks and objectives. Game module 520b accesses game data received from game server 505 to provide an accurate representation of the game to the user. Game module 520b captures and processes user inputs and interactions within the virtual environment and provides updates to game server 505. In embodiments, game module 520b captures and stores a plurality of loadout data generated by a user. The captured and stored loadout data is stored in the local client device and also optionally communicated back to, or uploaded to, the game server 505 in real-time, periodically (such as through batch updates) during a game, and/or at the end of the game. Game module 520b of a second client device 510 accesses the updated, or most current loadout data of a first client device 510, from either the game server 505 or directly from the first client device 510 without going through the game server 505.



FIG. 6 is a flow chart illustrating another method for validating data, in accordance with some embodiments of the present specification. Referring to elements described in context of FIG. 5, during gameplay, a client device 510 communicates with at least one server 505, which may be a dedicated server or another home based console or computing device, or a computing platform hosted on cloud. In one embodiment, the server executes a backend validation service. In accordance with aspects of the present specification, a plurality of loadout data is communicated between the client device and the server. Conventionally, when playing a multiplayer game, loadouts are transmitted from one client device to the client devices of other players so the character may be properly represented in the gaming environment of other players. In embodiments of the present specification, at step 602, the player's loadout is transmitted from the client device and is received by a backend validation service (for example, a service executed by validation module 525) executed by the server in communication with the client device.


At step 604, the validation service compares data in the loadout to a database 535, which includes known attributes of the player's character. Validation of data is performed to establish that the data is correct. In some embodiments, those known attributes are gathered based upon what the player has purchased in the marketplace, based on prior uploads of data from completed games, or any other activity performed by the player. If the comparison validates all the data in the loadout, at step 606, it generates an authenticated loadout data element. The validation service does so by applying, or associating, a digital signature with the loadout data set. The digital signature validates that the data in the loadout is authentic and was not altered, tampered with, or otherwise unauthorized.


One of ordinary skill in the art would appreciate that any method of creating and attaching a digital signature, or electronic validation, to loadout data may be used. In embodiments, asymmetric cryptography is used to generate the signature for validating the loadout data. Client side loadout data, after successful validation, may be encrypted in a manner such that it cannot be tampered with by the player at the client device. Exemplary algorithms that may be used to encrypt and/or sign information payloads before transmission from the validation service to the client device include JOSE JWS Signing (HMAC using SHA-256 hash algorithm), Public Key Encryption, and other encryption methods known in the art that may be employed for the purpose, so long as they serve the purpose of securing the data such that it cannot be tampered with at the client end.


At step 608, the server transmits the authenticated, digitally signed loadout data element back to the client device. The client device then transmits the authenticated, digitally signed loadout to other client devices of other players, thus enabling other players to have confidence that each players loadout represents a valid, authenticated, and proper set of resources legitimately obtained in the course of gameplay and not the result of hacking or cheating.


If the comparison at 604 does not validate the data, the loadout is not signed, and instead, at step 610, the loadout is flagged as being possibly corrupted and the player is unable to play with that character or using that specific loadout.


It may be appreciated that the present system and method reduces interconnection dependencies between backend services and can be used to securely send encrypted data between backend services through client machines. Thus, the use of the present method and system may be extended to other services running at the backend of a gaming system as well. For example, the present method may be applied to transmitting information to the rewards service of the game system as well. As known in the art, many video games include rewards that may be earned depending on achievement of certain in-match performance milestones. These rewards include various virtual objects, assets or abilities that may be used to enhance the gameplay experience and/or the performance of a user. In one embodiment, the system of present specification may be applied to have such performance milestones reported to the validation service from the client device. After ensuring the validity of the milestone data, the validation service may sign the data payload and forward it to the rewards service, either directly or via the client device. The reward service may then use the performance milestone data to generate appropriate rewards for the user.


The above examples are merely illustrative of the many applications of the methods and systems of present specification. Although only a few embodiments of the present invention have been described herein, it should be understood that the present invention might be embodied in many other specific forms without departing from the spirit or scope of the invention. Therefore, the present examples and embodiments are to be considered as illustrative and not restrictive, and the invention may be modified within the scope of the appended claims.

Claims
  • 1. A method for validating loadout data in a video game system, the video game system comprising a gaming program, configured to execute in a client device, and which, when executed, generates a video game to be played by a user, said client device having a processor and a random access memory, wherein said processor is in data communication with a display and with a storage unit, and at least one server device having a server processor and a plurality of programmatic instructions stored in a non-transient memory, wherein said plurality of programmatic instructions are executed by the server processor to run a validation service, the method comprising: transmitting loadout data by the gaming program to the at least one server device running the validation service, wherein the loadout data is stored in the client device and representative of virtual resources or virtual assets assigned to a virtual player controlled by the user in the video game;determining if the loadout data are valid using a validation mechanism executed by the validation service; andif the loadout data is valid, generating a signed payload of the loadout data and transmitting the signed payload of the loadout data from at least one server device executing validation service to the gaming program executing in the client device.
  • 2. The method of claim 1, wherein the validation mechanism validates the loadout data by comparing the loadout data to a database of known attributes of the user's virtual character.
  • 3. The method of claim 2, wherein comparing the loadout data comprises comparing the loadout data to a purchase history of the user.
  • 4. The method of claim 1, wherein generating the signed payload of the loadout data comprises applying a digital signature to the payload of the loadout data.
  • 5. The method of claim 1, further comprising transmitting the signed payload of the loadout data to other client devices executing the video game using the client device.
  • 6. The method of claim 1, wherein, if the loadout data is not valid, generating a flagged payload of the loadout data, wherein said flagged payload indicates that the loadout data cannot be used in association with the user's virtual player in the video game.
  • 7. The method of claim 6 further comprising storing the flagged payload in at least one database for further analysis.
  • 8. The method of claim 1 wherein the loadout data comprises any data representative of the virtual resources or assets associated with the virtual player and includes at least one of outfits, weapons, guns, grenades, ammunition, clothing, shields, defenses, powers, health, looks, or treasure.
  • 9. A video game system for validating loadout data, comprising: a client device, configured to execute a gaming program, wherein, when executed generates a video game to be played by a user and wherein said client device comprises a processor and a random access memory, wherein said processor is in data communication with a display and with a storage unit; and,at least one server device having a server processor and a plurality of programmatic instructions stored in a non-transient memory, wherein said plurality of programmatic instructions are executed by the server processor to run a validation service, wherein said system:transmits loadout data via the gaming program to the at least one server device running the validation service, wherein the loadout data is stored in the client device and representative of virtual resources or virtual assets assigned to a virtual player controlled by the user in the video game;determines if the loadout data is valid using a validation mechanism executed by the validation service;generates a signed payload of the loadout data, if the loadout data is valid; and,transmits the signed payload of the loadout data from at least one server device executing validation service to the gaming program executing in the client device.
  • 10. The system of claim 9, wherein the validation mechanism validates the loadout data by comparing the loadout data to a database of known attributes of the user's virtual character.
  • 11. The system of claim 10, wherein comparing the loadout data comprises comparing the loadout data to a purchase history of the user.
  • 12. The system of claim 9, wherein generating the signed payload of the loadout data comprises applying a digital signature to the payload of the loadout data.
  • 13. The system of claim 9, wherein the client device is used to transmit the signed payload of the loadout data to other client devices executing the video game.
  • 14. The system of claim 9, wherein, if the loadout data is not valid, generates a flagged payload of the loadout data, wherein said flagged payload is indicative that the loadout data cannot be used in association with the user's virtual player in the video game.
  • 15. The system of claim 9 further comprising at least one database for storing the flagged payload for further analysis.
  • 16. The system of claim 9, wherein the loadout data comprises any data representative of the virtual resources or assets associated with the virtual player and includes at least one of outfits, weapons, guns, grenades, ammunition, clothing, shields, defenses, powers, health, looks, or treasure.
US Referenced Citations (283)
Number Name Date Kind
5530796 Wang Jun 1996 A
5561736 Moore Oct 1996 A
5563946 Cooper Oct 1996 A
5685775 Bakoglu Nov 1997 A
5706507 Schloss Jan 1998 A
5708764 Borrel Jan 1998 A
5736985 Lection Apr 1998 A
5737416 Cooper Apr 1998 A
5745678 Herzberg Apr 1998 A
5768511 Galvin Jun 1998 A
5825877 Dan Oct 1998 A
5835692 Cragun Nov 1998 A
5878233 Schloss Mar 1999 A
5883628 Mullaly Mar 1999 A
5900879 Berry May 1999 A
5903266 Berstis May 1999 A
5903271 Bardon May 1999 A
5911045 Leyba Jun 1999 A
5920325 Morgan Jul 1999 A
5923324 Berry Jul 1999 A
5969724 Berry Oct 1999 A
5977979 Clough Nov 1999 A
5990888 Blades Nov 1999 A
6014145 Bardon Jan 2000 A
6025839 Schell Feb 2000 A
6059842 Dumarot May 2000 A
6069632 Mullaly May 2000 A
6081270 Berry Jun 2000 A
6081271 Bardon Jun 2000 A
6091410 Lection Jul 2000 A
6094196 Berry Jul 2000 A
6098056 Rusnak Aug 2000 A
6104406 Berry Aug 2000 A
6111581 Berry Aug 2000 A
6134588 Guenthner Oct 2000 A
6144381 Lection Nov 2000 A
6148328 Cuomo Nov 2000 A
6185614 Cuomo Feb 2001 B1
6201881 Masuda Mar 2001 B1
6222551 Schneider Apr 2001 B1
6271842 Bardon Aug 2001 B1
6271843 Lection Aug 2001 B1
6282547 Hirsch Aug 2001 B1
6311206 Malkin Oct 2001 B1
6334141 Varma Dec 2001 B1
6336134 Varma Jan 2002 B1
6337700 Kinoe Jan 2002 B1
6353449 Gregg Mar 2002 B1
6356297 Cheng Mar 2002 B1
6411312 Sheppard Jun 2002 B1
6426757 Smith Jul 2002 B1
6445389 Bossen Sep 2002 B1
6452593 Challener Sep 2002 B1
6462760 Cox, Jr. Oct 2002 B1
6469712 Hilpert, Jr. Oct 2002 B1
6473085 Brock Oct 2002 B1
6499053 Marquette Dec 2002 B1
6505208 Kanevsky Jan 2003 B1
6525731 Suits Feb 2003 B1
6549933 Barrett Apr 2003 B1
6567109 Todd May 2003 B1
6618751 Challenger Sep 2003 B1
RE38375 Herzberg Dec 2003 E
6657617 Paolini Dec 2003 B2
6657642 Bardon Dec 2003 B1
6684255 Martin Jan 2004 B1
6717600 Dutta Apr 2004 B2
6734884 Berry May 2004 B1
6765596 Lection Jul 2004 B2
6781607 Benham Aug 2004 B1
6819669 Rooney Nov 2004 B2
6832239 Kraft Dec 2004 B1
6836480 Basso Dec 2004 B2
6886026 Hanson Apr 2005 B1
6948168 Kuprionas Sep 2005 B1
RE38865 Dumarot Nov 2005 E
6993596 Hinton Jan 2006 B2
7028296 Irfan Apr 2006 B2
7062533 Brown Jun 2006 B2
7143409 Herrero Nov 2006 B2
7169050 Tyler Jan 2007 B1
7209137 Brokenshire Apr 2007 B2
7230616 Taubin Jun 2007 B2
7249123 Elder Jul 2007 B2
7263511 Bodin Aug 2007 B2
7287053 Bodin Oct 2007 B2
7305438 Christensen Dec 2007 B2
7308476 Mannaru Dec 2007 B2
7404149 Fox Jul 2008 B2
7426538 Bodin Sep 2008 B2
7427980 Partridge Sep 2008 B1
7428588 Berstis Sep 2008 B2
7429987 Leah Sep 2008 B2
7436407 Doi Oct 2008 B2
7439975 Hsu Oct 2008 B2
7443393 Shen Oct 2008 B2
7447996 Cox Nov 2008 B1
7467181 McGowan Dec 2008 B2
7475354 Guido Jan 2009 B2
7478127 Creamer Jan 2009 B2
7480656 Harris Jan 2009 B2
7484012 Hinton Jan 2009 B2
7503007 Goodman Mar 2009 B2
7506264 Polan Mar 2009 B2
7515136 Kanevsky Apr 2009 B1
7517282 Pryor Apr 2009 B1
7525964 Astley Apr 2009 B2
7552177 Kessen Jun 2009 B2
7565650 Bhogal Jul 2009 B2
7571224 Childress Aug 2009 B2
7571389 Broussard Aug 2009 B2
7580888 Ur Aug 2009 B2
7596596 Chen Sep 2009 B2
7640587 Fox Dec 2009 B2
7667701 Leah Feb 2010 B2
7698656 Srivastava Apr 2010 B2
7702784 Berstis Apr 2010 B2
7714867 Doi May 2010 B2
7719532 Schardt May 2010 B2
7719535 Tadokoro May 2010 B2
7734691 Creamer Jun 2010 B2
7737969 Shen Jun 2010 B2
7743095 Goldberg Jun 2010 B2
7747679 Galvin Jun 2010 B2
7765478 Reed Jul 2010 B2
7768514 Pagan Aug 2010 B2
7773087 Fowler Aug 2010 B2
7774407 Daly Aug 2010 B2
7782318 Shearer Aug 2010 B2
7792263 D Amora Sep 2010 B2
7792801 Hamilton, II Sep 2010 B2
7796128 Radzikowski Sep 2010 B2
7808500 Shearer Oct 2010 B2
7814152 McGowan Oct 2010 B2
7827318 Hinton Nov 2010 B2
7843471 Doan Nov 2010 B2
7844663 Boutboul Nov 2010 B2
7847799 Taubin Dec 2010 B2
7856469 Chen Dec 2010 B2
7873485 Castelli Jan 2011 B2
7882222 Dolbier Feb 2011 B2
7882243 Ivory Feb 2011 B2
7884819 Kuesel Feb 2011 B2
7886045 Bates Feb 2011 B2
7890623 Bates Feb 2011 B2
7893936 Shearer Feb 2011 B2
7904829 Fox Mar 2011 B2
7921128 Hamilton, II Apr 2011 B2
7940265 Brown May 2011 B2
7945620 Bou-Ghannam May 2011 B2
7945802 Hamilton, II May 2011 B2
7970837 Lyle Jun 2011 B2
7970840 Cannon Jun 2011 B2
7985138 Acharya Jul 2011 B2
7990387 Hamilton, II Aug 2011 B2
7996164 Hamilton, II Aug 2011 B2
8001161 Finn Aug 2011 B2
8004518 Fowler Aug 2011 B2
8005025 Bodin Aug 2011 B2
8006182 Bates Aug 2011 B2
8013861 Hamilton, II Sep 2011 B2
8018453 Fowler Sep 2011 B2
8018462 Bhogal Sep 2011 B2
8019797 Hamilton, II Sep 2011 B2
8019858 Bauchot Sep 2011 B2
8022948 Garbow Sep 2011 B2
8022950 Brown Sep 2011 B2
8026913 Garbow Sep 2011 B2
8028021 Reisinger Sep 2011 B2
8028022 Brownholtz Sep 2011 B2
8037416 Bates Oct 2011 B2
8041614 Bhogal Oct 2011 B2
8046700 Bates Oct 2011 B2
8051462 Hamilton, II Nov 2011 B2
8055656 Cradick Nov 2011 B2
8056121 Hamilton, II Nov 2011 B2
8057307 Berstis Nov 2011 B2
8062130 Smith Nov 2011 B2
8063905 Brown Nov 2011 B2
8070601 Acharya Dec 2011 B2
8082245 Bates Dec 2011 B2
8085267 Brown Dec 2011 B2
8089481 Shearer Jan 2012 B2
8092288 Theis Jan 2012 B2
8095881 Reisinger Jan 2012 B2
8099338 Betzler Jan 2012 B2
8099668 Garbow Jan 2012 B2
8102334 Brown Jan 2012 B2
8103640 Lo Jan 2012 B2
8103959 Cannon Jan 2012 B2
8105165 Karstens Jan 2012 B2
8108774 Finn Jan 2012 B2
8113959 De Judicibus Feb 2012 B2
8117551 Cheng Feb 2012 B2
8125485 Brown Feb 2012 B2
8127235 Haggar Feb 2012 B2
8127236 Hamilton, II Feb 2012 B2
8128487 Hamilton, II Mar 2012 B2
8131740 Cradick Mar 2012 B2
8132235 Bussani Mar 2012 B2
8134560 Bates Mar 2012 B2
8139060 Brown Mar 2012 B2
8139780 Shearer Mar 2012 B2
8140340 Bhogal Mar 2012 B2
8140620 Creamer Mar 2012 B2
8140978 Betzler Mar 2012 B2
8140982 Hamilton, II Mar 2012 B2
8145676 Bhogal Mar 2012 B2
8145725 Dawson Mar 2012 B2
8149241 Do Apr 2012 B2
8151191 Nicol, II Apr 2012 B2
8156184 Kurata Apr 2012 B2
8165350 Fuhrmann Apr 2012 B2
8171407 Huang May 2012 B2
8171408 Dawson May 2012 B2
8171559 Hamilton, II May 2012 B2
8174541 Greene May 2012 B2
8176421 Dawson May 2012 B2
8176422 Bergman May 2012 B2
8184092 Cox May 2012 B2
8184116 Finn May 2012 B2
8185450 McVey May 2012 B2
8185829 Cannon May 2012 B2
8187067 Hamilton, II May 2012 B2
8199145 Hamilton, II Jun 2012 B2
8203561 Carter Jun 2012 B2
8214335 Hamilton, II Jul 2012 B2
8214433 Dawson Jul 2012 B2
8214750 Hamilton, II Jul 2012 B2
8214751 Dawson Jul 2012 B2
8217953 Comparan Jul 2012 B2
8219616 Dawson Jul 2012 B2
8230045 Kawachiya Jul 2012 B2
8230338 Dugan Jul 2012 B2
8233005 Finn Jul 2012 B2
8234234 Shearer Jul 2012 B2
8234579 Do Jul 2012 B2
8239775 Beverland Aug 2012 B2
8241131 Bhogal Aug 2012 B2
8245241 Hamilton, II Aug 2012 B2
8245283 Dawson Aug 2012 B2
8265253 D Amora Sep 2012 B2
8310497 Comparan Nov 2012 B2
8334871 Hamilton, II Dec 2012 B2
8360886 Karstens Jan 2013 B2
8364804 Childress Jan 2013 B2
8425326 Chudley Apr 2013 B2
8442946 Hamilton, II May 2013 B2
8506372 Chudley Aug 2013 B2
8514249 Hamilton, II Aug 2013 B2
8554841 Kurata Oct 2013 B2
8607142 Bergman Dec 2013 B2
8607356 Hamilton, II Dec 2013 B2
8624903 Hamilton, II Jan 2014 B2
8626836 Dawson Jan 2014 B2
8692835 Hamilton, II Apr 2014 B2
8721412 Chudley May 2014 B2
8827816 Bhogal Sep 2014 B2
8838640 Bates Sep 2014 B2
8849917 Dawson Sep 2014 B2
8911296 Chudley Dec 2014 B2
8992316 Smith Mar 2015 B2
9083654 Dawson Jul 2015 B2
9152914 Haggar Oct 2015 B2
9205328 Bansi Dec 2015 B2
9286731 Hamilton, II Mar 2016 B2
9299080 Dawson Mar 2016 B2
9364746 Chudley Jun 2016 B2
9525746 Bates Dec 2016 B2
9583109 Kurata Feb 2017 B2
9682324 Bansi Jun 2017 B2
9764244 Bansi Sep 2017 B2
9789406 Marr Oct 2017 B2
9808722 Kawachiya Nov 2017 B2
20040242321 Overton Dec 2004 A1
20070218996 Harris Sep 2007 A1
20070238528 Harris Oct 2007 A1
20070276521 Harris Nov 2007 A1
20080305869 Konforty Dec 2008 A1
20090113448 Smith Apr 2009 A1
20130331180 Heller Dec 2013 A1
20140344725 Bates Nov 2014 A1
20160191671 Dawson Jun 2016 A1
Foreign Referenced Citations (56)
Number Date Country
2143874 Jun 2000 CA
2292678 Jul 2005 CA
2552135 Jul 2013 CA
1141641 Mar 2004 CN
1494679 May 2004 CN
1219384 Sep 2005 CN
1307544 Mar 2007 CN
100407675 Jul 2008 CN
100423016 Oct 2008 CN
100557637 Nov 2009 CN
101001678 May 2010 CN
101436242 Dec 2010 CN
668583 Aug 1995 EP
0717337 Aug 2001 EP
0679977 Oct 2002 EP
0679978 Mar 2003 EP
0890924 Sep 2003 EP
1377902 Aug 2004 EP
0813132 Jan 2005 EP
1380133 Mar 2005 EP
1021021 Sep 2005 EP
0930584 Oct 2005 EP
0883087 Aug 2007 EP
1176828 Oct 2007 EP
2076888 Jul 2015 EP
2339938 Oct 2002 GB
2352154 Jul 2003 GB
3033956 Apr 2000 JP
3177221 Jun 2001 JP
3199231 Aug 2001 JP
3210558 Sep 2001 JP
3361745 Jan 2003 JP
3368188 Jan 2003 JP
3503774 Dec 2003 JP
3579154 Oct 2004 JP
3701773 Oct 2005 JP
3962361 May 2007 JP
4653075 Dec 2010 JP
5159375 Mar 2013 JP
117864 Aug 2004 MY
55396 Dec 1998 SG
200836091 Sep 2008 TW
200937926 Sep 2009 TW
201009746 Mar 2010 TW
201024997 Jul 2010 TW
201028871 Aug 2010 TW
2002073457 Sep 2002 WO
20020087156 Oct 2002 WO
2004086212 Oct 2004 WO
2005079538 Sep 2005 WO
2007101785 Sep 2007 WO
2008037599 Apr 2008 WO
2008074627 Jun 2008 WO
2008095767 Aug 2008 WO
2009037257 Mar 2009 WO
2009104564 Aug 2009 WO
Related Publications (1)
Number Date Country
20190168125 A1 Jun 2019 US