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Inputting channel of line-by-line/intelaced video frequency signal sharing and method thereof

An interlaced video and input channel technology, applied in color TV parts, TV system parts, TVs, etc., can solve problems such as increasing TV costs and user troubles, reducing possibilities, saving costs, and simplifying circuits. Effect

Inactive Publication Date: 2007-07-18
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there are following problems in the prior art: 1) when the user uses the TV receiver to watch the DVD video signal, he must first distinguish the input terminal of the receiver, which brings certain troubles to the user
2) Two receiving terminals need to be designed outside the TV receiver, and two independent circuits need to be designed inside to process different input signals respectively, which increases the cost of the TV

Method used

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  • Inputting channel of line-by-line/intelaced video frequency signal sharing and method thereof
  • Inputting channel of line-by-line/intelaced video frequency signal sharing and method thereof

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no. 1 Embodiment

[0022] The first specific embodiment of the present invention comprises: a YPbPr / YcbCr input terminal shared by progressive / interlaced video signals, a second A / D converter connected to the YPbPr / YCbCr input terminal for separating line synchronization signals, and a second A / D converter for judging Signal format CPU, first video A / D converter for processing progressive video input signal, video decoding chip and video processing circuit for processing interlaced video input signal, the output ends of YPbPr / YCbCr input terminals are separated and connected in parallel The two roads are respectively connected to the input ends of the first video A / D converter and the video decoder chip, and the output ends of the first video A / D converter and the video decoder chip are respectively connected to the input ends of the video processing circuit; the second A / D converter The output terminal of the D converter is connected to the CPU, and the CPU passes the I 2 The C bus is respectiv...

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Abstract

The invention relates to an input channel and method for progressive and interleaved color difference component signals (i.e. YPbPr / YCbCr) in TV, proposing a progressive / interleaved video signals shared input channel and method, including the following steps: e inputting video signals to a TV receiver from YPbPr / YCbCr input terminals; judging the form of the input video signals is a progressive / interleaved form of video signals; according to the judged result, controlling on or off of YPbPr or YCbCr channel to make the signals pass through corresponding input signal processing circuits, and finally sending them into video processing circuits for further processing. By automatic identification with the TV receiver, for different input video signals YPbPr or YCbCr, the invention only needs a channel to be able to implement watching component video signals, thus reducing the cost, simple in the circuit and compact and convenient to use.

Description

【Technical field】 [0001] The invention relates to the input channel and method of progressive and interlaced video signals on video equipment, in particular to the input channel and method of progressive and interlaced color difference component signals (namely YPbPr / YCbCr) in high-definition television. 【Background technique】 [0002] In existing television technology, when watching progressive or interlaced video signals (such as progressive DVD or interlaced DVD), there are usually two input terminals on the television receiver: one progressive input terminal YPbPr, one interlaced input terminal YCbCr. When users use it, they need to distinguish the format of the input signal, and choose different input terminals for different input signals. When the receiver receives different signals, it splits the processing. The usual processing method is not to do digital processing on the input signal of the progressive video signal YPbPr, after simple matrix transformation, it is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/00H04N5/44H04N7/01
Inventor 李鸿安戴青松安慎华游开忻
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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