Title:
DIGITAL COLOR TELEVISION SIGNAL DEMODULATOR
Document Type and Number:
Japanese Patent JPS5846788
Kind Code:
A
Abstract:
A digital filter arrangement is provided which both demodulates and filters the color mixture signals in a television receiver. Samples of a digital chrominance signal are clocked into first and second registers such that the first register is loaded with samples of a first color mixture signal and the second register contains samples of a second color mixture signal. Output taps are connected between various ones of the stages of the first and second registers and weighting function circuits. The weighting function circuits associated with each register are in turn coupled to respective ladder networks of adders, which combine the weighted signals samples so as to exhibit, at an output stage adder, a lowpass response characteristic which is appropriate for the respective color mixture signal. The two digital registers are aligned in time in accordance with their respective peak impulse response characteristic to product filtered color mixture signals in a proper timed relationship.
Inventors:
HENRI GAATON RUISU JIYUNIA
Application Number:
JP15164482A
Publication Date:
March 18, 1983
Filing Date:
August 30, 1982
Export Citation:
Assignee:
RCA CORP
International Classes:
H03H17/02; H04N9/64; H04N9/66; H04N11/04; (IPC1-7): H04N9/02; H04N9/50
Domestic Patent References:
| JPS5583390A | 1980-06-23 |
Attorney, Agent or Firm:
Satoshi Shimizu (2 outside)