Field convertible NTSC/HDTV broadcast antennas
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United States of America Patent
Stats
-
Apr 2, 1996
Issued Date -
N/A
app pub date -
Sep 17, 1993
filing date -
Jun 28, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A convertible antenna system for enabling immediate installation of an antenna for continuing the broadcasting of conventional signals in the currently available channel ranges, but which allows for eventual convertibility to HDTV (high definition television) operation. Thus, field convertibility adjustments or modifications are made to the initially installed system after the point in time at which a channel has been assigned for HDTV broadcasting. Such channel assignment is in one of a number of possible frequency spectrum locations such as a channel adjacent to the conventional broadcast channel, or a significantly removed VHF channel, or even a UHF channel. The field adjustments can simply involve coupling or decoupling lines and associated components, or can include replacing an antenna portion.
First Claim
Family
International Classification(s)
Cited Art Landscape
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