Projection television system employing optics through which transmitted infrared television signals are received
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 8, 1992
Grant Date -
N/A
app pub date -
Oct 29, 1991
filing date -
Nov 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A projection television system includes a projection unit having an optical element through which infrared television signals are received. The received signals are processed to provide a television image display which is projected for viewing. Received television signals from a TV station or cable are converted to infrared signals and transmitted along a given axis of an infrared transmission link extending between an infrared transmitter, remotely positioned from the projection unit, to an infrared detector, located in the projection unit. The detector converts the infrared TV signal into a video signal which signal is processed by the projection receiver to provide the image for display. The infrared transmitter, the optical element and the detector are aligned along a given axis which is also the optical axis of the system.
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