MMDS/ITFS bi-directional over-the-air transmission system and method therefor
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United States of America Patent
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-
Feb 28, 1995
Issued Date -
N/A
app pub date -
Jun 15, 1993
filing date -
Apr 16, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A bi-directional MMDS/ITFS response converter and feed system connected to an antenna for receiving MMDS programming from a central location and for receiving information/data signals from a set top for retransmission of these signals back to the central location, The bi-directional converter has a down converter connected to a first feed for down converting conventional programming signals from the first feed into a group of converted programming signals and an up converter for up converting data/information signals from the communication line into ITFS response signals and delivering them into a second feed for transmission, The bi-directional MMDS/ITFS response converter of the present invention uses a common local oscillator for driving both the down converter and the up converter and a dual feed printed circuit board having the first feed dipole printed orthogonally to the second feed dipole,
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