VIDEO SWITCHER WITH INDEPENDENT PROCESSING OF SELECTED VIDEO SIGNALS
摘要
18 A video switcher comprises a source selector having a plurality of input terminals for connection to a plurality of video sources respectively, and at least two output terminals. At least two processing channels each have an input terminal connected to an output terminal of the source selector and also have an output terminal. A video combiner has video input terminals connected to the output terminals of the processing channels and is operative to combine the output signals provided by the processing channels in dependence upon priority signals.
申请公布号
CA1295416(C)
申请公布日期
1992.02.04
申请号
CA19890591166
申请日期
1989.02.15
申请人
GRASS VALLEY GROUP, INC. (THE)
发明人
JACKSON, RICHARD A.;SYMES, PETER D.;BANNISTER, RICHARD S.;GRANCEY, THOMAS A.;FRASIER, RICHARD A.;ABT, JOHN;BARNETT, RONNIE D.;BLECKSMITH, JAMES E.;WINDREM, KEVIN D.;OLMSTEAD, NEIL R.