Communications: electrical – Digital comparator systems
Patent
1975-01-10
1976-11-23
Hecker, Stuart N.
Communications: electrical
Digital comparator systems
G11C 700, G11C 900
Patent
active
039939820
ABSTRACT:
A sequence control unit for a digital video time base corrector used to process television signals to remove time base errors introduced during signal recording, reproducing, or transmission. In the time base corrector, incoming video signals are converted from analog to digital form, temporarily stored in a memory unit at a clocking rate which varies in a manner generally proportional to the time base errors, and the stored signals are fetched at a standard clocking rate. The sequence control unit controls contemporaneous storing and fetching from different portions of the memory unit and includes circuitry for preventing application of both store and fetch signals to the same memory unit portion when the accumulated time base error would cause such an overlap condition.
REFERENCES:
patent: 3812473 (1974-05-01), Tucker
Harrison Ronnie M.
Hendershot, III William B.
Scaggs Lee E.
Swain Allan L.
Tallent Michael W.
Consolidated Video Systems, Inc.
Hecker Stuart N.
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