Radio frequency integrated circuit

Details Radio frequency integrated circuit Radio frequency integrated circuit

2005-12-27

2005-12-27

Corsaro, Nick (Department: 2682)

Telecommunications

Transmitter and receiver at same station

C455S084000, C455S086000, C455S118000, C455S234100, C455S257000, C455S276100, C455S295000, C455S296000, C455S310000, C455S313000, C455S314000, C455S317000, C455S324000, C455S333000, C375S316000, C375S317000, C375S318000, C375S319000, C375S320000, C375S321000, C375S322000, C375S133000, C375S222000, C375S281000

Reexamination Certificate

active

06980774

ABSTRACT:
A radio frequency (RF) integrated circuit (IC) includes a local oscillation module, analog radio receiver, analog radio transmitter, digital receiver module, digital transmitter module, and digital optimization module. The local oscillation module is operably coupled to produce at least one local oscillation. The analog radio receiver is operably coupled to directly convert inbound RF signals into inbound low intermediate frequency signals based on the local oscillation. The digital receiver module is operably coupled to process the inbound low IF signals in accordance with one of a plurality of radio transceiving standards to produce inbound data. The digital transmitter is operably coupled to produce an outbound low intermediate frequency signal by processing outbound data in accordance with the one of the plurality of radio transceiving standards. The analog radio transmitter is operably coupled to directly convert the outbound low IF signals into outbound RF signals based on the local oscillation. The digital optimization module is operably coupled to the local oscillation module, the analog radio receiver and/or the analog radio transmitter to optimize performance of at least one aspect of the local oscillation module, the analog radio receiver and/or the analog radio transmitter for the given radio transceiving standard being implemented.

REFERENCES:
patent: 5896562 (1999-04-01), Heinonen
patent: 6366622 (2002-04-01), Brown et al.
patent: 6804497 (2004-10-01), Kerth et al.
“RF Transmitter Architecture and Circuits” by Behzad Razavi-Electrical Engineering Dept.-University of California, Los Angeles-IEEE 1999 Custom Integrated Circuits.
“A 900-MHz/1.8-GHz CMOS Receiver for Dual-Band Applications” by Stephen Wu and Behzad Razavi- 1998 IEEE.
“Highly Integrated RF-IC's for GSM AND DECT Systems—a Status Review” by Josef Fenk-1997 IEEE.

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