Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1980-12-29
1982-11-02
Richardson, Robert L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
H04N 508
Patent
active
043576290
ABSTRACT:
A variable slicing level is provided for the sync pulse separator of a television (TV) receiver to enable proper sync signal separation from the video signal as the strength of the received signal changes. The automatic gain control (AGC) signal is used to vary the conduction of at least a single additional transistor to move the slicing level toward or away from the sync pulse tip depending upon the strength of the received signal.
REFERENCES:
patent: 2601191 (1952-06-01), Wendt
patent: 2950342 (1960-08-01), Revercomb
Lewis Charles R.
Motorola Inc.
Richardson Robert L.
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