Patent ID: 8208075

Claim:
A color reconstruction system for a Sequential Color with Memory (SECAM) television signal, comprising: a luminance and chrominance separator and color decoder, for receiving and filtering an SECAM television signal with a luminance and a chrominance to produce a luminance signal and a chrominance signal; a first line buffer block, having line buffer and connected to the luminance and chrominance separator and color decoder, for temporarily storing the luminance signal; a second line buffer block, having a plurality of line buffers and connected to the luminance and chrominance separator and color decoder, for temporarily storing the chrominance signal; a vertical similarity calculator, connected to the first line buffer block and the luminance and chrominance separator and color decoder, for producing an upper similarity coefficient and a lower similarity coefficient based on the luminance signals respectively from the luminance and chrominance separator and color decoder and the first line buffer block; a reconstructor, connected to the second line buffer block and the vertical similarity calculator, for depending on the upper and lower similarity coefficients to adjust the chrominance signal temporarily stored in the second line buffer block to thereby produce a reconstructed chrominance signal; and a selector connected to the reconstructor, the second line buffer block and the luminance and chrominance separator and color decoder, for selecting the reconstructed chrominance signal or the chrominance signal output by the second line buffer block to further output a first output chrominance signal and a second output chrominance signal according to a select signal output by the luminance and chrominance separator and color decoder.