The claimed invention relates to media adapters and, more particularly, to communication with media adapters.
Media adapters have been proposed to communicate with a source/conduit of media information (e.g., a computer) and to connect to one or more peripheral devices for which the media information is destined. Where the media adapter is spaced apart (e.g., remote) from the source/conduit of media information, a communication link may functionally connect the media adapter and the source or conduit. The communication link may transport the media information to the media adapter and may also transport other information (e.g., media and/or control information) from the media adapter to the source/conduit of media information. The media adapter may also be considered a source of media information, for example when operating in conjunction with certain peripheral devices that generate such media information.
The communication link may have an associated bandwidth. Because sizes of media information (e.g., sound, voice, pictures, video, etc.) are typically large relative to other types of information (e.g., text, messages, etc.), it may be desirable to design the communication link with a relatively high bandwidth.
Certain applications involving media information, however, may fully utilize even relatively high bandwidths of the communication link between a media adapter and a source of the media information. Compression and/or interleaving schemes have been proposed to alleviate difficulties that occur when the communication link is highly utilized. Certain applications, however, may involve information that is sensitive to delay or latency. Such latency-sensitive information may not reach the source and/or media adapter in a timely manner over a highly utilized communication link.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate one or more implementations consistent with the principles of the invention and, together with the description, explain such implementations. In the drawings,
The following detailed description refers to the accompanying drawings. The same reference numbers may be used in different drawings to identify the same or similar elements. Also, the following detailed description illustrates certain implementations and principles, but the scope of the claimed invention is defined by the appended claims and equivalents.
Computer 110 may be arranged to execute a program and to output information to media adapter 140 via one or more of communication links 120 and 130. Computer 110 may also be arranged to receive input information from media adapter 140 via one or more of communication links 120/130. Such input information may be used by the program, and may modify the output information sent to media adapter 140. In one implementation consistent with the principles of the invention, the program executed by computer 110 may include a video game that produces a steam of video information (possibly including audio information) to be sent to media adapter 140. Other programs are possible, such as one that streams a movie (e.g., video and sound data) to media adapter 140, a telephony application, etc.
Processor 210 may be arranged to execute instructions that may be part of a program. Processor 210 may also be arranged to coordinate communication and functions among the other elements 220-250. In some implementations, processor 210 in computer 110 may be relatively powerful (e.g., have a higher clock speed, more level 2 (L2) and/or level 3 (L3) cache, etc.) to effectively perform the calculations needed for an intensive program, such as a video game. Although not explicitly illustrated, in
Processor 210 may, in some implementations, include multiple cores. In certain implementations consistent with the principles of the invention, processor 210 may be able to execute more than one task concurrently. Such ability may facilitate the handing of relatively large amounts of data.
Memory 220 may be arranged to store instructions and/or programs for execution by processor 210, as well as data products of the instructions and/or programs. Memory 220 may include random access memory (RAM), read only memory (ROM), flash memory, and may include other types of storage media, such as magnetic hard drives and optical media (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.) and their associated optical drives.
First communication interface 230 may be arranged to transmit and receive data via first communication link 120, and second communication interface 240 may be arranged to transmit and receive data via second communication link 130. Communication interfaces 230/240 may be arranged to facilitate communication via their associated communication link 120/130. For example, if first communication link 120 is a wireless link, first communication interface 230 may include circuitry and optionally an antenna arranged to send and receive wireless signals. Conversely, if first communication link 120 is a wired link (including wires or other physical conduits such as optical fibers), first communication interface 230 may include circuitry and a connector arranged to send and receive signals via a wire, cable, fiber, or the like.
Input/Output (I/O) interface 250 may include circuitry and connectors to interface with one or more peripheral input and/or output devices. For example, I/O interface 250 in media adapter 140 may include suitable connections to display 150 and to input device 160.
Returning to
Second communication link 130 may include another wireless or wired link between computer 110 and media adapter 140 that is distinct from first communication link 120. Second communication link 130 may be used primarily for transporting latency-sensitive information from media adapter 140 to computer 100, as will be elaborated in further detail herein. Second communication link 130 may have a relatively low bandwidth, depending on the size of the latency-sensitive information from media adapter 140. If second communication link 130 is a wireless link, for example, a Bluetooth®-compliant link or similar wireless link may be used. If second communication link 130 is a wired link, for example, an AC power line-based communication link, a twisted pair of wires, a universal serial bus (USB) cable, or similar wired link may be used. Although first communication link 120 and second communication link 130 have been described as having certain bandwidths, such links may employ any of the above-mentioned wireless and/or wired links or similar links to those mentioned, as long as second communication link 130 is distinct from first communication link 120 and capable of delivering data with a relatively low latency or delay.
Media adapter 140 may include one or more of elements 210-250 as described with regard to
Media adapter 140 may be located remote from computer 110. In some implementations, computer 110 and media adapter 140 may be located within the same room of a building, but spaced apart. In other implementations consistent with the principles of the invention, media adapter 140 may be located in a different room (e.g., den or other entertainment-oriented room) from the room in which computer 110 is located (e.g., office or other non-entertainment-oriented room).
Display 150 may include a television, monitor, projector, or other device suitable for displaying media information, such as video and audio. Display 150 may utilize a number of technologies for such displaying, including cathode ray tube (CRT), liquid crystal display (LCD), plasma, and/or projection-type technologies. Display 150 may be located proximate media adapter 140, which may in some implementations sit on top of or adjacent to display 150.
Input device 160 may be connected to media adapter 140 to supply input to a program on computer 110 via second communication link 130. Input device 160 may include, for example, a game controller or similar device. Although termed an “input” device, device 160 may perform both I/O functions, because some devices may include force feedback schemes or other mechanisms to output information to a user of the device. Although shown directly connected to media adapter 140 in
The top row in
As illustrated in
At 310, a user may press a button or perform some other action on input device 160. Because of the video information already present in the stack of media adapter 140, there may be some delay before media adapter 140 can send the button press event at 320. Depending on existing utilization of communication link 120, there may be further delay before the button press is transmitted to computer 110 at 330. The program on computer 110 may not receive the button press event until 340, significantly after 310 when input device 160 was actuated.
As illustrated in
Computer 110 may receive the button press event on second communication link 130 and may insert it into the communication stack at 360. Processor 210 in computer 110 may incorporate the button press event into its executing program at 370, before performing Calc E. The button press event in
The output data may be directed to an output device [act 420]. If necessary, media adapter 140 may decode or otherwise further process the output data before directing it to the output device. For example, if video and/or audio data is output by the remote program, this may be decoded before sending it to display 150.
Processing may continue by receiving input data for the remote program from input device 160 [act 430]. It should be noted that act 430 may occur concurrently with act 410 or act 420. Such input data may include relatively low-bandwidth, low latency data, such as a button press event. Other input data with different characteristics, however, may be generated by other types of input devices.
Media adapter 140 may direct the input data from input device 160 to the remote program via second communication link 130 [act 440]. It should be noted that act 440 also may occur concurrently with act 410 or act 420. Hence, for input data that should have a low latency before reaching the remote program, act 440 permits the sending of such input data without having to wait for breaks in arriving output data in act 410.
The foregoing description of one or more implementations consistent with the principles of the invention provides illustration and description, but is not intended to be exhaustive or to limit the claimed invention to the precise form disclosed. Modifications and variations are possible in light of the above teachings or may be acquired from practice of the invention.
For example, although first communication link 120 has been described as having a higher bandwidth than second communication link 130, this need not always hold. Consistent with the principles of the invention, first communication link 120 and second communication link 130 may have different bandwidth, latency and/or reliability characteristics to address different aspects of playback on media adapter 140 from a remote program. Although achieving low latency for an input to the remote program has been explained above, multiple communication links may be used to facilitate other aspects of playback on media adapter 140 from a remote program. Alternately or additionally, communication links 120/130 may have substantially the same characteristics but may be used differently to address different aspects of communication between media adapter 140 and a remote program.
Further, although computer 110 has been described in the context of a general-purpose device, it may also include a specific-purpose device such as a game console. Such game consoles may include any now-known or later-developed game-capable device and/or their portable variants. Also, although communication links 120/130 may have been implied as being unitary, in some implementations each of links 120/130 may include more than one sub-link (e.g., connected serially) to form the links 120/130 described herein.
Also, although
Moreover, the acts in
No element, act, or instruction used in the description of the present application should be construed as critical or essential to the invention. Also, as used herein, the article “a” is intended to include one or more items. Where only one item is intended, the term “one” or similar language is used. Variations and modifications may be made to the above-described implementation(s) of the claimed invention without departing substantially from the spirit and principles of the invention. All such modifications and variations are intended to be included herein within the scope of this disclosure and protected by the following claims.