Automatic calibration system for multi-primary video signal transmission
A video signal and automatic calibration technology, which is applied to TV system components, color TV, cable transmission adaptation, etc., can solve problems such as difficult installation and adjustment, complicated operation, and difficult judgment
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[0019] Take VGA video signal as embodiment in twisted-pair long-distance transmission, this embodiment is mainly made up of transmitting part and receiving part (accompanying drawing 3), this example comprises VGA video transmitter (301), is used for the transmission medium CAT of transmission -5E network cable (302) and VGA video receiver (303).
[0020] Its working mode is divided into two modes, one is transmission mode and the other is calibration mode. The following describes the operating procedures of the transmitting part and the receiving part in these two working modes respectively. For the calibration mode of this embodiment, refer to FIG. 10 .
[0021] The structural diagram of this embodiment is accompanying drawing 4. When the transmitting part of the example is the transmission mode, the signal processor (403) controls the 3-channel video 4-channel circuit (408) to switch the 3 primary colors R, G, and B signals input by the VGA video input interface (401) to ...
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