The present invention relates to a system and method for implementing a remote input device using virtualization techniques for wireless devices.
Current wireless device designs function with all the software layers residing in the handset, utilizing the main processor and attached radio hardware. The application and runtime environments are dependent on the hardware architecture of each specific handset. User applications and run-time environments on each handset lose portability and compatibility if the user were to change to a handset with some hardware architecture changes.
It may be desirable to have a system and method for implementing a remote input device using virtualization techniques for wireless devices. This makes the runtime environment and application independent of the input device hardware that is implemented on the wireless device. The removable media device with the processor and installed software can be connected to any other wireless device with a different input device hardware configuration and still function properly.
Embodiments of the present invention may provide a method and system that may include a remote processor package housed in removable media accessing input device hardware in a wireless device, wherein the access takes place via a communication link. In one aspect, the present invention may provide for a remote processor package system housed in removable media.
In one aspect, the system may comprise a wireless device that includes a processor, a memory, input hardware, and a protocol slave adapted to communicate with the input hardware; and a removable media device that includes a memory, a processor, and a protocol master adapted to communicate with the protocol slave of the wireless device. In another embodiment, the method may comprise emulating a hardware interface on a removable media device; mapping input hardware of a wireless device to the interface; mapping a processor of the media device to the input hardware; wrapping and sending input hardware commands from a protocol master of the media device to a protocol slave of the wireless device; and executing the commands on the input device.
Features and other aspects of embodiments of the present invention are explained in the following description taking in conjunction with the accompanying drawings, wherein:
Various embodiments of the present invention will now be described in greater detail with reference to the drawings.
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This disclosure describes the invention of a system and method where the input device hardware of a wireless device may be remotely controlled from a removable media device with processing capability. In one aspect, implementing a Virtual Input Device (VID) on the operating system of the removable media device may allow remote control of input device hardware of a wireless device. In further aspects, the VID may allow for the physical input device be processed and controlled remotely from the removable media that may run applications.
Embodiments of this invention are the designs of VID systems that enable input device data from the wireless device 201 to be delivered to the removable media device 501 and controlled remotely with configurable capabilities such as but not limited to thresholds, min values, max values, character case, and language from the removable media device 501. The removable media device 501 can be packaged in the form of USB dongle, SIM, SAM, SD, or other memory cards and may be removable from the wireless device 201. The removable media device 501 is connected to the wireless device 201 via a communication link 401, such as USB or any removable card format bus. In further aspects, the communication link 401 may be wireless. The OS 106 and the application 103 on the removable media device 501 can process and control the input data and the configuration of the physical input device on the wireless device 201 using this technique.
The VID system is comprised of three components, VID Protocol 507 that handles exchange of data and control signals, a VID Core 506 that may process data and control signals, and a VID Device Driver 505 that interfaces with the embedded operating system kernel 106 providing the API's required by the kernel 106. The VID Protocol may be further divided into two parts, one for the VID Protocol Master 507 residing on the removable media device 501 where the input data may be processed and one protocol slave 203 residing on the wireless device 201 where input data is gathered.
The removable media device 501 may require an operating system 106 or core logic for controlling the program flow and data flow in the system, a device driver 502 to control the communication link 401 to the wireless device 201, a device driver system for the VID which may emulate the existence of input device(s) for the removable media device 501 from the point of view of the OS 106.
In one aspect, configurable and non-configurable properties of the input device(s) on the wireless device 201 may be detected and communicated between the wireless device 201 and the removable media device 501 which may allow for proper initialization of the input device(s) and proper initialization of removable media device applications 103 that will utilize the input device(s), and may avoid unnecessary configuration steps that could bring the system into an unusable state.
From the start, 701, power-up and connection of the wireless device and removable media device, 702, the removable media device will detect the presence of wireless device and inform the VID Core, 703. The VID Core on the removable media device will then send a query message on the presence of the input device(s) in the attached wireless device and its configurable and non-configurable properties, 704. The VID Protocol Master sends this query message as a control signal to the wireless device through the communication link, 705. The VID Protocol Slave on the wireless device then reads its registry either in memory or in its registers for the required information, 706 and returns it to the removable media device through the communication link, 707. The VID Protocol Master then receives the information and returns it to the VID Core, 708. The VID Core then records the properties from which the system and the applications can refer to in configuration stages, 709, ending the process, 710.
Another aspect allows for run-time configuration of the input device(s) properties. Run-time configuration may refer to the software system or software stack in the removable media device. Further aspects may allow for immediate change on the input device(s) properties to better suit the operating mode of the system. In other aspects, applications 103 may change the input device(s) settings to better fit their specific application 103 in the most optimal way. In another aspect, an application 103 may determine what result is “optimal,” for example a game application would desire the refresh rate of the data to be faster when compared to a document editing application.
To start, 801, the software system in the removable media device may check the capabilities of the input device(s) by referring to the recorded configurable and non-configurable properties of the input device using the recorded properties, 802. Checking the capabilities of the input device(s) may include checking the modes each input device may support. The software system in the removable media device may choose the input device properties for an optimal result, 803. While starting up, the VID Core may chooses the input device(s) properties as a default startup configuration. At run-time, it may be the application that chooses the input device configuration. If at run time, the chosen configuration may be passed to the VID Core from the application through the VID Device Driver using the kernel API provided, 804. The VID Core may forward the request as a control signal to the VID Protocol Master, 805 which then may send the request to the wireless device over the communication link, 806. The VID Slave on the wireless device may then process the request and may configure the input device(s), 807. The VID Slave on the wireless device may then send the result of the operation including success or failure and the resulting configuration properties to the wireless media device over the communication link, 808. The VID Protocol Master may then receive the information and return the information to the VID Core, 809. The VID Core may then record the current configuration properties, 810, from which the software system in the removable media device and the applications may refer to later, ending the process, 811.
This feature may allow the system to emulate the existence of input device(s) and thereby allow the applications 103 to use the remote physical input device(s) as if the physical device(s) are located in the removable media device 501. An event may be what happens to the input device, such as a button being pressed and released, a stylus moved or lifted, or a finger contacting a touch screen. Event data may be the actual data or character code for the button or the coordinates for a stylus or touch screen. The VID Device Driver 505 is a device driver element which may report the presence of input device(s) to the OS 106 of removable media device 201. The VID Device Driver 505 may also offer the interfaces that a regular input device(s) offers to the software system in the removable media device 501.
To start, 910, the VID Protocol Slave may gather input device event data from the physical devices present on the wireless device, 902. The VID Protocol Slave then may package the data into VID Protocol Packet(s) and then may send them over the communication link, 903. The VID Protocol Master may then receive the event data and may pass the event data to the VID Core, 904. The VID Core may then pass the event data to the VID Device Driver, 905. The VID Device Driver may then pass the event data to the OS which will finally interpret and process the input device event data, 906, ending the process, 907.
As mentioned, data packets may be transferred to and from the wireless device 201 and removable media device 501 while the VID protocol master 507 and slave 203 are communicating with one another. The following are descriptions of examples of protocols that may be used during this communication process:
In certain aspects of the present invention, the VID Protocol Master 507 may communicate with the VID Protocol Slave 203 using certain instructions, commands and results codes. As mentioned above, for instance, the VID Core 506 may send commands to the VID Protocol Slave 203. The VID Protocol Slave 203 may return the result code for the command based on the current input device information to the VID Core 506. The following are examples of commands and result codes that may be used in implementing one aspect of the present invention:
Advantages of embodiments of the present invention may include one or more of the following: (1) the cost of handset may be lower and may require shorter development time because the handset only requires implementing the VID Device Driver system with a lower performance processor; (2) the user interface, runtime environment, and applications may not need to be developed for the handset because they may already be implemented in the removable media device.
In one aspect, all the application and data stored in the removable media device is portable and will run on any handset that implement the VID Device Driver system. In further aspects, the user may preserve their applications and data even if when transferring the removable media device to a handset with a different hardware design, as long as the VID Device Driver system is implemented.
Although illustrative embodiments have been shown and described herein in detail, it should be noted and will be appreciated by those skilled in the art that there may be numerous variations and other embodiments that may be equivalent to those explicitly shown and described. For example, the scope of the present invention is not necessarily limited in all cases to execution of the aforementioned steps in the order discussed. Unless otherwise specifically stated, terms and expressions have been used herein as terms of description, not of limitation. Accordingly, the invention is not to be limited by the specific illustrated and described embodiments (or the terms or expressions used to describe them) but only by the scope of claims.
This application claims priority to U.S. Provisional Patent Applications Ser. Nos. 61/206,454, 61/206,453, and 61/206,427, filed Jan. 30, 2009, and U.S. Provisional Patent Application Ser. No. 61/206,797, filed Feb. 4, 2009, the disclosures of which are incorporated herein by reference.
Number | Date | Country | |
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61206454 | Jan 2009 | US | |
61206427 | Jan 2009 | US | |
61206797 | Feb 2009 | US |