Method for selecting sound channel of television set

A sound channel and TV technology, applied in the TV field, can solve the problem that the sound output cannot meet the needs of users.

Inactive Publication Date: 2010-09-22
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

But now with the increase of AV channels, there are generally 2 to 3 channels, and users have certain requirements for the placement of TV sets and the connection of AV cables, so the fixed AV sound channels are used as YPbPr / YcbCr, The sound output of VGA and DVI signals can no longer meet the requirements of users

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  • Method for selecting sound channel of television set

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Embodiment Construction

[0013] The invention provides a method for selecting a sound channel of a television set, which sets an image channel flag and a sound channel flag for each channel. Add an audio channel selection item in the menu, and set all AV channels as options. When the input signal is YPbPr / YcbCr, VGA, DVI, the sound will be output to the speaker through the AV channel set by the user.

[0014] Add an option in the menu of the TV to realize the operation of the sound output channel. This option can only adjust the operation on the channel without sound output. When the user watches composite signals containing sound and images (such as TV, AV, USB, etc.), the sound is output normally, and the sound channel selection item in the menu is not selectable, and this function is also invalid. When the user watches only image signals (such as YPbPr, VGA, DVI, etc.), the sound channel selection option in the menu is optional. It can output sound while outputting the image signal. The source of...

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Abstract

The invention discloses a method for selecting a TV sound channel. The method comprises the following steps: S1: a CPU is used for detecting signal in real time to judge whether the signal is stable; S2: judgment is performed to see whether the current signal is a YPbPr / YCbCr signal, or a VGA signal or a DVI signal according to the detected horizontal and filed synchronizing ranges; S3: the detected signal is output by a corresponding channel and the corresponding signal sound channel is set as a current sound channel; S4: the information of a sound output channel stored in an EERPOM is read to judge whether the sound output channel changes or not; and S5: the content output by the sound output channel is transmitted to the current sound channel for outputting the sound. Compared with theprior art, in the method, an AV sound is output to a loudspeaker by a software process when the AV sound is not in an AV channel, so as to ensure that users can simultaneously watch the YPbPr / YCbCr signal, the VGA signal, the DVI signal, and the like, while hearing the sound of corresponding image content.

Description

【Technical field】 [0001] The invention relates to the technical field of television sets, in particular to a method for selecting a sound channel of a television set. 【Background technique】 [0002] At present, television sets have become a necessity and a main tool for leisure and entertainment in people's daily life, and people are enriching spare time life by watching TV programs every day. However, as people's demand for information and new things increases, TVs with a single TV channel can no longer be satisfied, and channels such as TV, AV, SVIDEO, component, computer, HDMI, USB, and multimedia are also produced accordingly. Television has developed from a single TV signal in the past to a multi-channel, multi-standard, multi-functional integrated audio-visual platform. However, the addition of input channels has created new problems. Some input signals have only images without sound. As an audio-visual tool, image and sound are two necessary conditions for a TV set. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/60
Inventor 孙雷
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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