Patent ID: 6343207
Filing Date: 2002-01-29
Classification: H04B

Abstract:
A field configurable transceiver comprising:a radio frequency transmitter section, a radio frequency receiver section, and an intermediate frequency signal processing section coupled to the radio frequency transmitter and receiver sections for processing signals to be transmitted and processing received signals; the radio frequency transmitter section includes an input circuit for receiving intermediate frequency digital signals from the intermediate frequency section and converting the intermediate frequency digital signals to radio frequency modulated signals for transmission; the radio frequency receiver section is adapted to receiving radio frequency modulated signals, converts the radio frequency modulated signals to intermediate frequency modulated digital signals, and applies the intermediate frequency digital signals to the intermediate frequency section; the intermediate frequency section includes: i) configurable digital signal processing circuits responsive to digital commands for selectively configuring the intermediate frequency section to be operative in one of a plurality of receive and transmit modes of operation, ii) a configurable numerical controlled oscillator and inphase and quadature mixers that are configurable in response to digital commands as an intermediate frequency modulator circuit and as an intermediate frequency demodulator circuit, and iii) digital filter circuits in both inphase an quadature signal processing circuits that are configurable in response to digital commands, each of the inphase an quadature signal processing circuits are configurable in response to digital commands to include decimation and interpolator circuits; and a configuration control circuit coupled to the intermediate frequency section applying digital commands for configuration in any of a plurality of the receiver and transmitter modes of operation.