Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Reexamination Certificate
2008-07-08
2008-07-08
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
C342S377000, C702S190000
Reexamination Certificate
active
07397426
ABSTRACT:
A method for operating a CDMA communications device includes receiving at an antenna array M different summations from a mixture of source signals provided by M signal sources, and providing the M different summations to a receiver assembly. The receiver assembly includes a first signal path and a second signal path parallel to the first signal path. In the first signal path, a mixing matrix including the M different summations of the M source signals is formed, and at least one source signal is separated from the mixing matrix. A determination is made if the separated source signal is an interferer source signal. In the second signal path, the M different summations are delayed corresponding to a delay introduced in the first signal path. The first signal path provides to a summer the separated source signal if the separated source signal is an interferer source signal, and the second signal path provides to the summer the M different summations after being delayed. The summer removes the interferer source signal if present from the M different summations after being delayed.
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Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
InterDigital Technology Corporation
Mull Fred H.
Tarcza Thomas H.
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