Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1976-10-18
1980-08-05
Martin, John C.
Facsimile and static presentation processing
Static presentation processing
Attribute control
455 2, H04N 700, H04B 100
Patent
active
042164974
ABSTRACT:
A system for monitoring the operation of a multichannel receiver includes a channel monitor coupled to the sync separator of the receiver for collecting and transmitting channel information to a central collector station. The collector station selectively responds to one of a plurality of channel monitors to record, in sequential order, channel information. Each of the channel monitors is similar and includes a synchronizing pulse generator triggered by the vertical synchronizing pulse from a receiver to generate a match recognize pulse when a frequency coupled to the receiver from the monitor and the channel frequency have a preestablished relationship. To generate the match recognize pulse a counter provides signals to a tuning matrix that controls a frequency synthesizer or plurality of oscillators for generating the frequency coupled to the receiver for the match evaluation. Also, the counter activates a data encoder that provides channel information to the collector station. The collector station responds to the channel information and records incoming data for future evaluation of the operation of the multichannel receiver.
REFERENCES:
patent: 2935557 (1960-05-01), Bushman
patent: 3676580 (1972-07-01), Beck
patent: 3703684 (1972-11-01), McVoy
patent: 3790700 (1974-02-01), Callais et al.
patent: 3803349 (1974-04-01), Watanabe
patent: 3947624 (1976-03-01), Miyake
patent: 3987397 (1976-10-01), Belcher et al.
patent: 4044376 (1977-08-01), Porter
patent: 4048562 (1977-09-01), Haselwood et al.
Buxton Robert B.
Durst Duane A.
Ishman Neal H.
Johnson Michael E.
McArthur James F.
Crowder, Jr. Albert M.
E-Systems Inc.
Martin John C.
Wilder Robert V.
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