Patent ID: 9578297
Date: 2017-02-21
CPC Classifications: H01R,H04N

Claim:
1. A method of transmitting a video signal, comprising: separating a current raw digital video signal acquired by a video camera core into a luminance signal and a chrominance signal, the current raw digital video signal having a 720P format or a 1080P format; when the current raw digital video signal is a 25-frame or 30-frame high-definition digital video signal in 720P format, filtering the luminance signal by a 15 MHz digital filter, encoding the filtered luminance signal by an 18 MHz intermediate-frequency carrier into a luminance-encoded digital signal and encoding the chrominance signal by the 18 MHz intermediate-frequency carrier or another intermediate-frequency carrier into a chrominance-encoded digital signal; when the current raw digital video signal is a 25-frame or 30-frame high-definition digital video signal in 1080P format or a 50-frame or 60-frame high-definition digital video signal in 720P format, filtering the luminance signal by a 30 MHz digital filter, encoding the filtered luminance signal by a 36 MHz intermediate-frequency carrier into a luminance-encoded digital signal and encoding the chrominance signal by the 36 MHz intermediate-frequency carrier or another intermediate-frequency carrier into a chrominance-encoded digital signal; converting the luminance-encoded digital signal and the chrominance-encoded digital signal into an analog video signal having a frequency of less than or equal to 20 MHz; transmitting the analog video signal to a master control chip board through an electrically-conductive slip ring; and converting the analog video signal back into the current raw digital video signal in the 720P format or the 1080P format in the master control chip board.