Patent ID: 7792509
Filing Date: 2010-09-07
Classification: H04B

Abstract:
1. A transceiver comprising: a digital synthesizer; and a phase locked loop coupled to the digital synthesizer; wherein when the transceiver is in a transmitting mode, the digital synthesizer is configured to receive a modulation signal, modulate a reference signal in response to the modulation signal, and transmit the modulated reference signal to the phase locked loop; wherein when the transceiver is in a receiving mode, the digital synthesizer is configured to receive a non-modulation signal, generate a non-modulated reference signal, and transmit the non-modulated reference signal to the phase locked loop; and wherein the digital synthesizer and the phase locked loop form a digital synthesizer-driven phase locked loop, and the digital synthesizer driven phase locked loop is configured to operate in a modulating state when the transceiver is in the transmitting mode and is configured to operate in an oscillating state when the transceiver is in the receiving mode.