Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1989-12-28
1991-10-08
Chin, Tommy P.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358905, H04N 521
Patent
active
050559290
ABSTRACT:
A ghost canceler having first and second terminal groups. The first terminal group is coupled to a television receiver and the second terminal group is available for coupling to a video tape recorder (VTR). The first terminal group includes terminals for receiving an original video signal from the television to be ghost canceled, commands for causing ghost canceling processing to be carried out, information regarding television channel changes and sound signals from the television receiver. The first terminal group also includes an output terminal for transmitting to the television receiver the original video signal as it is within a period in which the input terminal group does not receive the commands for performing the ghost canceling processing, or a predetermined period immediately after the input terminal group receives information about the switch of the channels, the output terminal transmitting to the television receiver a video signal ghost canceled with respect to the original video signal at other times. The second terminal group including a video output terminal for outputting the ghost canceled video signal or the original video signal received from the television receiver to the VTR and sound terminals for outputting a sound signal received from the television receiver as is to the VTR.
REFERENCES:
patent: 4296435 (1981-10-01), d'Hautecourt
patent: 4698680 (1987-10-01), Lewis, Jr.
Chin Tommy P.
NEC Home Electronics Ltd.
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