Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train
Reexamination Certificate
2007-06-19
2007-06-19
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Systems using alternating or pulsating current
Plural channels for transmission of a single pulse train
C375S130000, C375S299000, C375S347000, C370S342000, C370S320000, C343S834000, C343S833000, C343S757000, C343S754000, C342S368000, C342S375000, C455S562100, C455S561000, C455S133000, C455S069000
Reexamination Certificate
active
09789476
ABSTRACT:
A method for synchronizing a CDMA receiver to a transmitter when an adaptive antenna is utilized to receive transmitted data, wherein a receiving antenna system is adapted between a 360° reception angle pattern (i.e., an omni-directional pattern) and a fixed reception angle (i.e., a directional pattern) by permitting the receiver to identify a pilot signal having the largest magnitude. The receiver minimizes interference from other pilot signals by steering antenna pattern nulls toward other transmitters. As a result, the time required for the receiver to acquire a valid pilot signal is significantly reduced.
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Hoffmann John E.
Nelson, Jr. George Rodney
Proctor James A.
Rouphael Antoine J.
Fan Chieh M.
IPR Licensing Inc.
Pathak Sudhanshu C.
Volpe & Koenig P.C.
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