On Command Video Corporation

Robert B Fenwick

John W McMains

Robert Snyder

Larry L Peden

Jeffrey R Gile

An apparatus is provided for providing a plurality of high frequency input signals to each of a plurality of respective integrated circuit devices and for receiving at least one respective high frequency output signal from each respective device, the apparatus comprising: a plurality of respective substantially planar mounting platforms on which the respective devices are respectively mounted, wherein respective mounting platforms are aligned substantially parallel to each other; a plurality of respective input lines for conducting the respective input signals, each respective input line extending in a direction substantially perpendicular to the respective planes of the respective mounting platforms, and each respective input line being electrically coupled to respective mounting platforms that mount respective devices that are to receive respective input signals conducted by each respective input line; and a plurality of respective isolation lines for electrically isolating adjacent input lines from each other, each respective isolation line extending in a direction substantially perpendicular to the respective planes of the respective mounting platforms, such that adjacent input lines have at least one respective isolation line interposed therebetween.

Switching apparatus for high frequency signals with plural parallel

A video distribution system transmits selected video programs to a number of independently controlled video monitors. The video monitors are arranged in groups, each group being coupled to a distinct transmission medium. A program selector associated with each video monitor generates video connection requests which specify a video source to be connected to that video monitor. A two stage video switch apparatus couples specified video sources to specified video monitors. The first stage routes specified video signals from the video sources to the second stage, which is a frequency multiplexer. The frequency multiplexer then transmits the specified video signals for each group of video monitors in distinct frequency bands on one of the transmission mediums. Each video monitor within each group of monitors has a tuner that is tuned to receive the video signal in a distinct one of the frequency bands. In effect, the transmission medium for each group of video monitors has a separate transmission channel for each of the monitors in the group. Finally, the system has a controller which receives the video connection requests, and controls the video switch apparatus so that it couples specified video sources to specified video monitors.

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Los Altos Hills, CA, United States of America

Robert B Fenwick