Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1978-02-02
1980-01-15
Martin, John C.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
330260, 330292, 330294, 330293, H04N 514, H03F 345, H03F 134
Patent
active
041841760
ABSTRACT:
A feedback amplifier, particularly suitable for use in the video output circuit of a television receiver, has an amplifying circuit, for example, in the form of a differential amplifier, a first feedback circuit for negatively feeding back to the input of the amplifying circuit a low frequency component of the output signal from the amplifying circuit, and a second feedback circuit having substantially the same feedback ratio as the first feedback circuit but being operative to negatively feedback to the input of the amplifying circuit a high frequency component of the output signal.
REFERENCES:
patent: 3676790 (1972-07-01), Beurrier
patent: 3983505 (1976-09-01), Ishigaki et al.
patent: 4069459 (1978-01-01), Lee
Lefkowitz, "Transistor AC Amplifier Uses Multiple Feedback", Electronics (Engineering Edition), May 23, 1958, pp. 84, 85.
Isobe Toshinobu
Sahara Hiroshi
Tanaka Yutaka
Eslinger Lewis H.
Martin John C.
Sinderbrand Alvin
Sony Corporation
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