Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-02-03
2009-06-16
Nguyen, Duc (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S575700, C455S063400, C342S368000, C342S373000, C343S814000, C343S816000
Reexamination Certificate
active
07548764
ABSTRACT:
Techniques are provided herein for generating multiple radiation patterns. An antenna system comprises an antenna array having one or more antennas for providing a first radiation pattern and a second radiation pattern, a transform matrix for transforming one or more inputs into one or more outputs according to a transform function, wherein the outputs of the transform matrix provide signals to the antennas with predetermined phases and magnitudes for generating the first and second radiation patterns, and a transmitter for providing a first set of signals corresponding to the first radiation pattern and a second set of signals corresponding to the second radiation pattern to inputs of the transform matrix.
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PCT International Search Report and Written Opinion of the Internatonal Searching Authority, Aug. 31, 2007.
Davis Phil
Grabner John
Jin Hang
Kurtz Brian L.
Wee Daniel
Chow Charles
Cisco Technology Inc.
Edell Shapiro & Finnan LLC
Nguyen Duc
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