| 摘要 |
<p>The present invention relates to a wireless camera which automatically avoids channel interference. The wireless camera includes: a wireless transmitter comprising a video scrambling unit to which an analog video signal photographed by the wireless camera is supplied through a video signal input unit, a frequency generating unit for user code, to which a user code mixed by a user code mixing unit is supplied through a user code central processing unit, a video signal processing unit to which a user code encoding signal of the frequency generating unit for user code and a modulated video signal obtained by modulating the video signal are reversed and supplied through the video scrambling unit, a transmission frequency control unit to which a channel selected by a channel adjusting unit is supplied though a central processing unit, and a transmission frequency generating unit to which a frequency corresponding to the channel from the transmission frequency control unit and a wireless delivery frequency processed by the video signal processing unit are respectively supplied; and a wireless receiver comprising a wireless receiving module which is connected with a channel central processing unit connected with channel adjusting unit 1 and 2 and the user code central processing unit connected with the user code mixing unit through a reception control unit, a user code filtering unit and a video signal filtering unit which respectively pass a user code frequency and a video signal in a mixed video signal which is scrambled from the wireless receiving module, a video descrambling unit which restores the video signal from the video signal filtering unit to a normal signal, a video signal processing unit which turns on/off the output of the video signal by the control of the user code central processing unit, and a USB signal output unit through a USB signal converting unit and a video signal output unit which is respectively connected to the output side of the video signal processing unit.</p> |
