Video processing system having improved internal switching capab

Details Video processing system having improved internal switching capab Video processing system having improved internal switching capab

1991-03-28

1992-11-10

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 86, 455 41, H04N 5262, H04N 5268, H04N 5222

Patent

active

051629046

ABSTRACT:
A digital video switching apparatus has a matrix switch which receives a plurality of input video signals and connects certain of the input video signals as outputs thereof. The input video signals can be externally supplied or can be internally generated by video processors within the switching apparatus. The connection of certain of the input video signals as outputs of the matrix switch is determined by a plurality of first switch signals. The first switch signals are generated by a selection circuit. The selection circuit receives a plurality of second switch signals and in response thereto generates the first switch signals. A plurality of user activatable switches generate the plurality of second switch signals. A plurality of displays is associated with the user activatable switches and displays the functions of the associated user switch. The video switching apparatus further has the capability of changing the assignment of the connection of certain of the input video signals to certain of the output video signals as activated by the user activatable switches.

REFERENCES:
patent: 4581645 (1986-04-01), Beyers, Jr.
patent: 4616263 (1986-10-01), Eichelberger
patent: 4700230 (1987-10-01), Pshissky
patent: 4746982 (1988-05-01), Seen
patent: 4858011 (1989-08-01), Jackson
patent: 4891633 (1990-01-01), Imazeki
patent: 4947254 (1990-08-01), Abt

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