Synchronizing signal separation circuit for a television receive

Details Synchronizing signal separation circuit for a television receive Synchronizing signal separation circuit for a television receive

1988-03-11

1989-11-21

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358148, H04N 508

Patent

active

048826243

ABSTRACT:
A synchronizing signal separation circuit for separating a composite synchronizing signal having a variable peak voltage subject to changes from a composite video signal, the composite synchronizing signal including a vertical synchronizing signal having a predetermined level for controlling vertical scanning in a television receiver. The separation circuit includes a composite separation circuit for separating the composite synchronizing signal from the composite video signal received from a source of video signals and a charge control circuit for maintaining the stability and the predetermined level of the vertical synchronizing signal after changes in synchronizing signal peak voltage.

REFERENCES:
patent: 4185229 (1980-01-01), Harford
patent: 4414569 (1983-11-01), Tokuda et al.
patent: 4463379 (1984-07-01), Hosoya
patent: 4621289 (1986-11-01), Bart et al.
patent: 4745477 (1988-05-01), Bell et al.
S. Coccetti et al., "New LSI I.C. Leads the Way to 5V TV sets," IEEE Transactions on Consumer Electronics, vol. CE-29, No. 3, Aug. 1983.

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