Self-calibrating direct conversion transmitter

Pulse or digital communications – Transmitters

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S296000, C375S224000, C455S126000, C244S118100

Reexamination Certificate

active

07110469

ABSTRACT:
A self-calibrating transmitter includes an up-conversion mixing module, summing module, calibration determination module, and a calibration execution module. The up-conversion mixing module is operably coupled to mix an I component of a base-band signal with an I component of a local oscillation to produce a mixed I signal and is also operably coupled to mix a Q component of the base-band signal with a Q component of the local oscillation to produce a mixed Q signal. The summing module sums the mixed I signal with the mixed Q signal to produce a modulated radio frequency (RF) signal. The calibration determination module is operably coupled to produce a calibration signal, which it generates by interpreting the local oscillation and the modulated RF signal. The calibration execution module is operably coupled to calibrate the DC level of the I and/or Q component of the base-band signal, and/or the gain of the I and/or Q component of the base-band signal based on the calibration signal.

REFERENCES:
patent: 5995541 (1999-11-01), Navid et al.
patent: 6819910 (2004-11-01), Shi et al.
patent: 2003/0071110 (2003-04-01), Hilbert
patent: 2003/0095607 (2003-05-01), Huang et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Self-calibrating direct conversion transmitter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-calibrating direct conversion transmitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-calibrating direct conversion transmitter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3524208

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.