Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
Reexamination Certificate
2005-08-02
2009-08-25
Le, Nhan T (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Local control of receiver operation
C455S240100, C455S296000, C375S327000, C331S019000
Reexamination Certificate
active
07580691
ABSTRACT:
A system for reducing self interference in a mobile terminal is provided. In general, the system includes a receiver including downconversion circuitry that converts a received radio frequency (RF) signal to a downconverted signal using one or more local oscillator frequencies. The downconverted signal is processed by digital circuitry clocked by one or more clock signals to obtain information from the RF signal. The local oscillator frequencies are provided by a frequency synthesizer as a function of an output frequency signal of a phase lock loop. Divider circuitry operates to divide the output frequency signal of the phase lock loop to provide the clock signals.
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Reed David
Scott Baker
Le Nhan T
RF Micro Devices, Inc.
Withrow & Terranova, P.L.L.C.
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