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A circuit, method and system for determining video signal type for generation by a media player

A media player and video signal technology, which is applied to the components of the TV system, TVs, instruments, etc., can solve the problems of increasing the size and cost of the media player

Inactive Publication Date: 2009-12-02
CREATIVE TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the media player supports the three video signal types mentioned above, the media player needs twelve video ports, which increases the size and cost of the media player by requiring more ports

Method used

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  • A circuit, method and system for determining video signal type for generation by a media player
  • A circuit, method and system for determining video signal type for generation by a media player
  • A circuit, method and system for determining video signal type for generation by a media player

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Embodiment Construction

[0020] figure 1 is a block diagram illustrating relevant components of the portable media player 100 according to an embodiment of the present invention. The portable media player includes a video processor 102 for generating video signals, three video ports A, B, C for input / output video signals, and Video signal detector 104. The input of video signals may be for recording video content. Such as figure 1 As shown, video ports A, B, C are used to connect the media player to various display devices, such as a camcorder 150 or televisions 160,170.

[0021] In this embodiment, the video processor 102 is capable of generating three different types of video signals, composite video, S-video and component video, and these video signals are output via the processor's video output ports VO1, VO2, VO3 to Video detector 104 . The detection inputs VOD1, VOD2, VOD3 of the processor are used to carry control signals from the video signal detector 104 to control which of the three vid...

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PUM

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Abstract

A circuit, method and system for determining which type of video signal is to be generated by a media player are described herein. In the described embodiment, the media player has three video ports for transferring different types of video signal with each type of video signal requiring a predetermined number of ports for transferring its video signals, for example s-video requires two video ports. To determine which type of signal to generate, the detection circuit comprises a detector arranged to detect which of the video ports have a load coupled thereto, and is further arranged to control the media player to generate the type of video signal according to the number of ports detected that is coupled with the load.

Description

technical field [0001] The present invention relates to circuits, methods and systems for determining the type of video signal to be generated by a media player. Background technique [0002] With the advent of more video technologies, different signal types are introduced, and if the media player is to support different video signal types (such as composite video, S-video, and component video), the number of video output ports of the media player also changes. increase accordingly. For example, for composite video, one RCA cable connector is required to carry the composite video input and another RCA cable connector is required for the composite video output, thus requiring two video output ports. If the media player supports the three video signal types mentioned above, the media player needs twelve video ports, which increases the size and cost of the media player by requiring more ports. Therefore, manufacturers must strike a balance between the number of different vid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/00
CPCG09G2370/22H04N5/46H04N9/7921G09G2370/042H04N21/44231G09G2360/04H04N21/4402G06F3/14G09G2360/02H04N21/4122
Inventor 约翰逊·川林晨芳
Owner CREATIVE TECH CORP
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