Pulse or digital communications – Receivers – Automatic gain control
Reexamination Certificate
2006-06-27
2006-06-27
Corrielus, Jean B. (Department: 2637)
Pulse or digital communications
Receivers
Automatic gain control
C370S335000, C370S342000, C375S346000, C375S285000, C375S144000, C375S148000, C455S245100
Reexamination Certificate
active
07068743
ABSTRACT:
A DS-CDMA (Direct Sequence-Code Division Multiple Access) multi-user interference canceller cancels interference waves of a plurality of users. The DS-CDMA includes a variable gain controller for comparing reception characteristics of reception signals received from the plurality of users prior to interference cancellation processing with reception characteristics upon the interference cancellation processing and evaluating a comparison result, and controlling gains prior to baseband decoding of the reception signals so as to maximize improvements of the reception characteristics of the reception signals on the basis of an evaluation result. A CDMA multi-user system using the above canceller is also disclosed.
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Japanese translation of Korean Office Action (with English translation of relevant portion).
Corrielus Jean B.
Dickstein Shapiro Morin & Oshinsky LLP.
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