Abstract: A video synchronization signal removal circuit in which a synchronization signal component of an incoming video signal is detected whereupon a reference signal corresponding to a black video level is substituted substantially during the synchronization signal interval.

Abstract: A circuit and method for clamping a composite video component signal at the video black level by using horizontal synchronization timing information contained within the signal and clamping the signal during a time interval in which it is at the desired black level.

Abstract: A method of converting a thermometer code in an analog-to-digital converter to a binary code. The method involves counting the ones in the thermometer code and using the parity of the count as bit 0 of the binary code; downsampling the thermometer code by dropping every other bit to form a downsampled code; counting the ones in the downsampled code, and using the parity of that count as bit 1 of the binary code; and repeating the procedure until the binary code is completed. A circuit carrying out this method in a single clock cycle without computations is disclosed.