Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-02-28
2006-02-28
Tieu, Binh K. (Department: 2643)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S084000, C455S232100, C455S240100, C375S219000, C375S345000
Reexamination Certificate
active
07006824
ABSTRACT:
A packet-based wireless transceiver that transmits and receives data packets includes a transceiver component having an adjustable performance parameter. A calibration circuit adjusts the performance parameter of the transceiver component at times synchronized with the data packets. A calibration signal generator generates calibration signals based on the performance parameter and outputs the calibration signals to the transceiver component. A comparator receives the outputs of the transceiver component and generates a difference signal. A calibration adjustment circuit communicates with the calibration signal generator and the comparator and adjusts the performance parameter to reduce the difference signal. Alternately, a reference signal generator generates a reference signal. A comparator receives the reference signal and a second signal from the transceiver component and generates a difference signal. A calibration adjustment circuit adjusts the performance parameter of the transceiver to reduce the difference signal.
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Chien George
Leistiko Tyson
Tsai King Chun
Tse Lawrence
Marvell International Ltd.
Tieu Binh K.
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