Displacement video analog signal processing circuit
A video analog signal and processing circuit technology, applied in TV, electrical components, color TV, etc., can solve the problems of inconvenient storage and retrieval, heavy wiring workload, obvious picture distortion, etc.
Inactive Publication Date: 2016-05-04
CHENGDU KECHUANGGU TECH CO LTD
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But its biggest disadvantage is that no matter how good the recorded image is, the quality of the video image will be greatly reduced after long-distance transmission, or the image will be distorted after repeated replications.
[0003] At the same time, the video analog signal takes up a lot of resources, and it is inconvenient to store and retrieve. When the transmission distance is long, the signal will suffer from attenuation, distortion, group delay, and is susceptible to interference, which will reduce the image quality. When online, it cannot connect to the Internet, and can only monitor the site in a point-to-point manner, which makes the wiring workload huge
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[0022] A displacement video analog signal processing circuit, including the following modules: multi-channel switch: used to receive multiple video analog signals, and transmit the signals to the displacement module under the control of the single-chip microcomputer module; displacement module: displace the video analog signal, and displace The final video analog signal is transmitted to the analog-to-digital conversion module; the analog-to-digital conversion module: converts the video analog signal into a video digital signal and transmits it to the single-chip microcomputer module; the single-chip microcomputer module: processes the received video digital signal, and then sends it to the digital-analog Conversion module; digital-to-analog conversion module: convert the received video digital signal into a video analog signal and then send it to the filter circuit; filter circuit: process the video analog signal transmitted by the digital-to-analog conversion module and output...
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The invention discloses a processing circuit, especially relates to a displacement video analog signal processing circuit. The invention comprises following modules: a multi-way switch for receiving multi-way video analog signals and transmitting the signals to a displacement module under the control of a single chip machine module; the displacement module for carrying out displacement to the video analog signals; an analog-to-digital conversion module for converting the video analog signals and transmitting the converted signals to the single chip machine; the single chip machine module for processing received video digital signals and sending to a digital-to-analogue conversion module; a digital-to-analogue conversion module for converting received video digital signals into video analog signals and sending to a filtering circuit; and the filtering circuit for processing the video analog signals transmitted by the digital-to-analogue conversion module and outputting the processed data. According to the invention, the displacement processing is carried out to the video analog signals; the video analog signals are effectively converted into digital signals; after the digital signals are processed, the digital signals are converted into the video analog signals; and time division conversion of multi-way analog signals is realized through multi-way selection and carrying out wireless signal transmission.
Description
technical field [0001] The invention relates to a processing circuit, in particular to a displacement video analog signal processing circuit. Background technique [0002] The video analog signal means that each frame of image is a real image signal of a natural scene acquired in real time. Video analog signals have the advantages of low cost and good restoration, and video images often give people an immersive feeling. But its biggest disadvantage is that no matter how good the recorded image is, the quality of the video image will be greatly reduced after long-distance transmission, or the distortion of the image will be obvious after repeated replication. [0003] At the same time, the video analog signal takes up a lot of resources, and it is inconvenient to store and retrieve. When the transmission distance is long, the signal will suffer from attenuation, distortion, group delay, and is susceptible to interference, which will reduce the image quality. When online, ...
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IPC IPC(8): H04N5/14
CPCH04N5/14
Inventor 吴凯刘菲张建李成
Owner CHENGDU KECHUANGGU TECH CO LTD