RF ASIC for subscriber communicator

Details RF ASIC for subscriber communicator RF ASIC for subscriber communicator

2006-09-19

2006-09-19

Milord, Marceau (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Transceiver controlling a separate transceiver or receiver

C455S183100, C455S083000, C455S086000, C455S234100, C455S118000, C375S279000, C375S316000, C375S345000, C709S230000, C709S231000, C709S237000

Reexamination Certificate

active

07110726

ABSTRACT:
An RF ASIC for a subscriber communicator includes a receiver section, a transmitter section, a CODEC and an I2S port. The receiver section downconverts by superheterodyning and demodulates a received RF communication signal to provide analog quadrature components of the received signal at baseband. The transmitter section upconverts and combines analog input quadrature modulation components to provide an RF communication transmit signal and then amplifies the transmit signal for driving an external power amplifier. The CODEC processes the analog baseband quadrature components of the received signal to provide I and Q digital output signals, and processes I and Q digital input signals to provide the analog input quadrature modulation components for said upconversion. The I2S port combines the I and Q digital output signals for output as a serial digital signal stream, and separates the I and Q digital input signals from an input serial digital signal stream.

REFERENCES:
patent: 5920593 (1999-07-01), Perl et al.
patent: 6141387 (2000-10-01), Zhang
patent: 6449317 (2002-09-01), Critchlow et al.
patent: 6587516 (2003-07-01), Critchlow et al.
patent: 6658237 (2003-12-01), Rozenblit et al.
patent: 6728326 (2004-04-01), Fulghum
patent: 6799023 (2004-09-01), Pinola et al.
patent: 6882861 (2005-04-01), Panasik et al.

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