Marger Johnson & McCollom, P.C.
Apparatus and method for decoding SECAM chrominance signal
We describe an apparatus and method for decoding a SECAM chrominance signal. The apparatus may include a band-pass filter to separate the chrominance signal from the composite video baseband signal. A down-mixer down mixes the chrominance signal from a high to a low frequency band to generate two signals having a substantially 90° phase difference. A cloche filter filters the two signals. A differentiator differentiates the cloche filtered signals. A multiplier squares each differentiated signal. An adder sums the squared result while a square root takes the square root of the sum.
Samung Electronics Co., Ltd.
H
H04N
inventional
Bong-Soon Joo-Young Ju-Hyun Deuk-Geun
Kang Ha Kim Ahn