Image display control system and image display system control method

• US 20050156869A1
• Filed: 03/09/2005
• Published: 07/21/2005
• Est. Priority Date: 02/26/1999
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ando, Muneki, Abe, Naoto, Yamazaki, Tatsuro, Mori, Makiko
• Granted Patent: US 7,508,452 B2
• Time in Patent Office: Days
• US Class Current: 345/104
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/42202 environmental sensors, e.g. for detecting temperature, luminosity, pressure, earthquakes
• CPC Class Codes: H04N 21/4318 by altering the content in the rendering process, e.g. blanking, blurring or masking an image region image enhancement or restoration in general G06T5/00
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/4363 Adapting the video stream to a specific local network, e.g. a Bluetooth® network
• CPC Class Codes: H04N 21/4396 by muting the audio signal
• CPC Class Codes: H04N 21/4398 involving reformatting operations of audio signals details of audio signal transcoding G10L19/173
• CPC Class Codes: H04N 21/4402 involving reformatting operations of video signals for household redistribution, storage or real-time display details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764
• CPC Class Codes: H04N 21/4621 Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen arrangements for using the results of monitoring on user's side in broadcast systems H04H60/65; flow control in packet networks H04L47/10
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/472 End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content end-user interfaces for retrieving video data from a database G06F16/739; network services for supporting unicast streaming H04L65/612
• CPC Class Codes: H04N 21/6581 Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
• CPC Class Codes: H04N 21/8352 involving content or source identification data, e.g. Unique Material Identifier [UMID]
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: H04N 5/46 for receiving on more than one standard at will deflecting circuits of multi-standard receivers H04N3/27

Abstract

This invention discloses an arrangement allowing connection of various kinds of image displays to one supply source in an image display control system having a supply source for transmitting a signal including at least a video signal, and an image display for receiving the signal and displaying a corresponding image. The supply source acquires characteristic data of the image display when it is powered on, determines a signal communication specification with the image display based on the acquired characteristic data, and communicates a signal including the video signal with the determined communication specification. The image display transmits characteristic data for specifying the characteristics of the image display to the supply source, and communicates the signal including the video signal in accordance with the determined communication specification. This invention also discloses an arrangement permitting changing the specifications and version of the control program of the image display.

Claims

1-20. -20. (canceled)

21. An image display control system comprising a terminal for transmitting a signal including at least a pair of video and acoustic signals, and an image display for receiving the signal from said terminal and displaying a corresponding image,

said terminal including:

request means for detecting a program specification held in said image display upon powering on said terminal, and when program download is determined to be necessary from the detected program specification, requesting program download of said image display; and

program download means for downloading a program, and

said image display including;

program update means for storing, in a corresponding program memory of said image display, the downloaded program transmitted subsequently upon reception of the program download request.

22. The system according to claim 21, wherein said request means acquires a program ID stored in the program memory of said image display, and detects a program specification.

23. The system according to claim 21, wherein when said request means determines that program download is unnecessary and upon completion of program download, said terminal performs display control for said image display.

24. An image display system control method in an image display control system having a terminal for transmitting a signal including at least a pair of video and acoustic signals, and an image display for receiving the signal from the terminal and displaying a corresponding image, comprising:

the detection step of detecting a program specification held in the image display when the terminal is powered on;

the determination step of determining whether program download is necessary from the program specification detected in the detection step;

the request step of requesting program download of the image display in correspondence with a determination result in the determination step;

the program download step of downloading a program, the detection step, the determination step, the request step, and the program download step being executed in the terminal; and

the program update step of storing, in a corresponding program memory of the image display, the downloaded program transmitted subsequently upon reception of the program download request, the program update step being executed in the image display.

25. The method according to claim 24, wherein the detection step comprises acquiring a program ID stored in the program memory of the image display, and detecting a program specification.

26. The method according to claim 24, wherein when program download is determined in the determination step to be unnecessary and upon completion of program download, the terminal performs display control for the image display.

27. A computer program product which operates on an image display control system having a terminal for transmitting a signal including at least a pair of video and acoustic signals, and an image display for receiving the signal from the terminal and displaying a corresponding image, comprising codes of:

the detection step of detecting a program specification held in the image display when the terminal is powered on;

the determination step of determining whether program download is necessary from the program specification detected in the detection step;

the request step of requesting program download of the image display in correspondence with a determination result in the determination step;

the program download step of downloading a program, the detection step, the determination step, the request step, and the program download step being executed in the terminal; and

the program update step of storing, in a corresponding program memory of the image display, the downloaded program transmitted subsequently upon reception of the program download request, the program update step being executed in the image display.

28. A computer-readable storage medium which stores a computer program operating on an image display control system having a terminal for transmitting a signal including at least a pair of video and acoustic signals, and an image display for receiving the signal from the terminal and displaying a corresponding image, the computer program comprising codes of:

the detection step of detecting a program specification held in the image display when the terminal is powered on;

the determination step of determining whether program download is necessary from the program specification detected in the detection step;

the request step of requesting program download of the image display in correspondence with a determination result in the determination step;

the program download step of downloading a program, the detection step, the determination step, the request step, and the program download step being executed in the terminal; and

the program update step of storing, in a corresponding program memory of the image display, the downloaded program transmitted subsequently upon reception of the program download request, the program update step being executed in the image display.