Video switcher apparatus with back-up system

Details Video switcher apparatus with back-up system Video switcher apparatus with back-up system

1992-08-24

1994-02-15

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Switching

348722, H04N 5268

Patent

active

052871860

ABSTRACT:
A switcher apparatus for selectively supplying video signals comprising a main switching unit, a back-up switching unit, a switching device and a housing. The main and back-up switching units receive a plurality of input video signals, from which desired video signals are selected and supplied therefrom. The switching device receives the selected video signals from the main and back-up switching units and outputs one of the two received signals. The housing secures the main and back-up switching units and enables removal therefrom and installation therein of one of the main and back-up switching units while the other switching unit operates so as to provide continuous selecting of desired video signals and supplying of the same by at least one of the main and back-up switching units to the switching device.

REFERENCES:
patent: 4700230 (1987-10-01), Pshtissky et al.
patent: 4775976 (1988-10-01), Yokoyama
patent: 5036455 (1991-07-01), Atwood
patent: 5081619 (1992-01-01), Nagata
JP 030270585 (Sony) Abstract.

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