Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1988-02-01
1989-03-07
Groody, James J.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358 11, 358 12, 358 14, 358140, 358141, 358 33, H04N 514, H04N 1108, H04N 708
Patent
active
048110957
ABSTRACT:
For the synchronized display of MAC signals on a monitor designed to display standard video signals, a decoding device derives synchronizing pulses from the data component of the MAC signal which contains the line-frequency and field-frequency information, and a blanking stage is triggered by the synchronizing pulses for the periodic blanking of a partial segment of the MAC signal to a predetermined constant voltage level in a standard-suitable temporal relationship to the synchronizing pulses.
REFERENCES:
patent: 4636835 (1987-01-01), Tan et al.
patent: 4639764 (1987-01-01), Morcom
patent: 4651208 (1987-03-01), Rhodes et al.
IBA; Experimental & Development Report 120/83; "Extended-Definition MAC", Windram et al., 12/83 (FIG. 10).
Harm Hartwig
Ibl Harald
Groody James J.
Parker Michael D.
Rohde & Schwarz GmbH & Co. KG
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