Self-calibrating, self-correcting transceivers and methods

Details Self-calibrating, self-correcting transceivers and methods Self-calibrating, self-correcting transceivers and methods

1997-07-31

2000-09-12

Pham, Chi H.

Pulse or digital communications

Transceivers

455 84, H04B 138

Patent

active

061188115

ABSTRACT:
A transceiver has a digital signal processor which can insert calibration signals of known level and frequency into transmitters for calibration and correction of transmitter parameters. An output of the calibrated and corrected transmitter is subsequently coupled into a calibration mixer along with a mixing signal (e.g., from a local oscillator generator. The outputs of the calibration mixer have known levels and frequencies and are inserted into receivers for calibration and correction of receiver parameters.

REFERENCES:
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patent: 5175872 (1992-12-01), Borras
patent: 5303394 (1994-04-01), Hrncirik
patent: 5363402 (1994-11-01), Harmon
patent: 5444865 (1995-08-01), Heck et al.
patent: 5835850 (1996-08-01), Kumar
Toner M. F., et al., "On the Practical Implementation of Mixed Analog-Digital BIST", IEEE 1995 Custom Integrated Circuits Conference, Mar., 1991, pp. 525-528.

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