Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2005-05-31
2005-05-31
Yenke, Brian P. (Department: 2614)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S609000, C348S663000, C345S058000
Reexamination Certificate
active
06900848
ABSTRACT:
A video signal input selector is subject to cross coupling between selectable video signals. The input selector comprises a video amplifier coupled to amplify a video signal selected from said selectable video signals. A controllable switch has first and second elements, the first element receives the selected video and is coupled to signal ground. The second element receives the selected video and is coupled to the amplifier. During a first condition the first element is controlled to be open circuit and the second element is controlled to be short circuit coupling the selected video signal to the video amplifier. In a second condition the first element is controlled to short circuit the selected video signal to the signal ground and the second element is controlled to be open circuit substantially inhibiting the selected video signal from coupling to the video amplifier.
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Reneau Daniel Lee
Sendelweck Gene Karl
Lagoni William A.
Laks Joseph J.
Thomson Licensing S.A.
Tripoli Joseph S.
Yenke Brian P.
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