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Communication apparatus, information processing method, and program

An information processing method and technology of a communication device, applied in the field of communication devices for transformation processing

Inactive Publication Date: 2009-06-24
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0034] Also, when a plurality of HDMI(R) devices constituting an AV system can perform conversion processing, there may be differences in the conversion processing (the image quality of the resulting image) performed by each of the plurality of HDMI(R) devices.

Method used

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  • Communication apparatus, information processing method, and program
  • Communication apparatus, information processing method, and program
  • Communication apparatus, information processing method, and program

Examples

Experimental program
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Embodiment Construction

[0061] figure 2 It is a block diagram showing a configuration example of an embodiment of an AV system to which the present invention is applied.

[0062] exist figure 2 In the example, the AV system is composed of a DVD player 21, an AV amplifier 22, and a TV 23 as HDMI (R) devices.

[0063] The DVD player 21 is a communication device functioning as an HDMI (R) source device, and is connected to an AV amplifier 22 via an HDMI (R) cable 1 .

[0064] The DVD player 21 reproduces a DVD, and transmits (provides) the resulting video and audio signals to the AV amplifier 22 via the cable 1 .

[0065] In addition, the DVD player 21 acquires device information about one or more HDMI(R) devices connected via HDMI(R) including at least permission information indicating whether the format conversion process of the converted signal can be performed, An HDMI(R) device capable of conversion processing is identified based on the availability information included in the device informati...

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Abstract

The present invention relates to a communication device, an information processing method and a program thereof. The transform processing which is used for transforming signal format is approximately processed. A DVD player (21) obtains the device information of each of an AV amplifier (22) and a TV (23) which are connected through an HDMI(R) for identifying whether the DVD player, the AV amplifier and the TV are the changeable devices that can execute the transformation processing used for transforming the format of image signal. Furthermore, the DVD player selects one device from the changeable devices as an actuating device. At the state that the actuating device is the DVD player, all instruction transformation processing of AV amplifier and the TV are prohibited through CEC line. At the state that the actuating device is the AV amplifier or TV, the instruction transformation processing of the actuating device is executed through the CEC line. Furthermore the executing of transformation processing in DVD player is prohibited. The instruction transformation processing of other device is prohibited through CEC line. For an example, the communication device, the information processing method and the program of the invention can be used for AV system which is connected through HDMI(R).

Description

technical field [0001] The present invention relates to a communication device, an information processing method, and a program, and particularly relates to a communication device having at least a signal channel for transmitting a baseband signal in one direction and a bidirectional control channel for control, such as via HDMI (High Definition Multimedia Interface: High A communication device, an information processing method, and a program that can appropriately perform conversion processing for converting the format of a signal among devices connected to an interface such as Definition Multimedia Interface (R). Background technique [0002] In recent years, as a high-speed As a communication interface for transmitting a digital television signal, that is, a base band (uncompressed) image (moving image) signal and an audio signal accompanying the image, HDMI (R) is widely used. [0003] The HDMI(R) specification is an interface specification for digital home appliances (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/08H04N7/015G11B20/00G11B31/00H04L29/06H04N5/765H04N7/173H04N21/436H04N21/4402
CPCG09G2370/12G09G5/006G09G2360/02G09G2340/0407G09G5/12G09G2370/24
Inventor 本村谦介
Owner SONY CORP