Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1983-07-05
1987-05-19
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358146, H04N 7087
Patent
active
046672354
ABSTRACT:
A teletext decoder having a character pickup circuit superior in the antinoise property and response characteristic by allowing signals only in the vicinity of clock run-in signals to pass, simultaneously detecting the amplitude of clock run-in signals through a band-pass filter circuit, gating framing code signals and reproduced clock and slice data, and integrating and holding the clock run-in signals.
REFERENCES:
patent: 4202012 (1980-05-01), Hirashima
patent: 4222073 (1980-09-01), Hirashima
patent: 4303942 (1981-12-01), Fukuda et al.
patent: 4318128 (1982-03-01), Sauvanet
patent: 4384304 (1983-05-01), Ohta et al.
Fukuda Shin
Hirashima Masayoshi
Nozoe Toshiro
Yamashita Akira
Chin Tommy P.
Harvey David E.
Matsushita Electric - Industrial Co., Ltd.
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