Patent ID: 8188914
Filing Date: 2012-05-29
Classification: G01S,H04B

Abstract:
1. A mobile wireless communication device comprising: a housing: a wireless communication transceiver carried by said housing and configured to generate an oscillator control signal; said wireless communication transceiver also configured to generate an activation signal; a positioning-system receiver carried by said housing; and a shared oscillator carried by said housing and configured to generate a reference frequency signal for the wireless communication transceiver and the positioning-system receiver; said shared oscillator configured to generate the reference frequency signal having a noise contribution thereon due to frequency control of the shared oscillator based upon the oscillator control signal; said positioning-system receiver configured to control processing of received positioning signals based upon the activation signal from the wireless communication transceiver to reduce the noise contribution on the reference frequency signal due to frequency control of the shared oscillator based upon the oscillator control signal; said wireless communication transceiver comprising an automatic frequency control (AFC) module configured to generate the oscillator control signal and the activation signal, and a first frequency synthesizer configured to provide clock signals to the AFC module based upon the reference frequency signal.