Self-calibrating, self-correcting transceivers and methods

DETAILED DESCRIPTION The present invention is directed to a self-calibrating, self-correcting transceiver.
This goal is achieved with a signal processor which can inject calibration signals of known levels and frequencies into transmitters of the transceiver for calibration and correction of transmitter parameters.
Subsequently, transmitter signals from a calibrated transmitter and mixing signals from another signal source (e.
g.
, a local oscillator generator) are applied to inputs of a calibration mixer.
Outputs of this mixer have known known levels and frequencies and are injected into receivers of the transceiver for calibration and correction of receiver parameters.
The signal processor measures responses of the transmitters and receivers and parameter corrections are communicated to the transmitters and receivers from a controller.
In an exemplary calibration and correction method, transmitter calibration signals are sent through a transmitter, responses to the calibration signals are monitored and transmitter responses corrected if necessary.
Subsequently, a calibrated transmitter signal is mixed with a mixing signal to generate receiver calibration signals which are injected into a receiver.
Receiver responses to the calibration signals are monitored and receiver responses corrected if necessary.
The novel features of the invention are set forth with particularity in the appended claims.
The invention will be best understood from the following description when read in conjunction with the accompanying drawings.