Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1983-06-28
1986-05-13
Buczinski, S. C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
455208, 358123, H04K 102, H04N 7167
Patent
active
045890161
ABSTRACT:
A receiving circuit for receiving an FM-modulated television signal with an energy dispersal signal superposed thereon is used for a television receiver for receiving the FM-modulated television signal. The receiving circuit is provided with a triangle wave signal generator for generating a triangle wave signal in synchronism with a vertical synchronizing signal. The energy dispersal signal superposed on the FM-modulated television signal is suppressed by frequency modulating an oscillation signal of a local oscillator by the triangle wave signal obtained.
REFERENCES:
patent: 4216500 (1980-08-01), St. Louis
patent: 4415929 (1983-11-01), Yoshisato
patent: 4417279 (1983-11-01), Shinkawa et al.
patent: 4439787 (1984-03-01), Mogi et al.
Hatashita Hiroshi
Matsuura Shigeo
Noda Masaki
Saitoh Takeshi
Shinkawa Keiro
Buczinski S. C.
Hitachi , Ltd.
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