Automatic frequency correction method and receiver for time...

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S257000, C455S255000, C455S259000, C455S260000, C375S344000

Reexamination Certificate

active

07103339

ABSTRACT:
A receiver for use in a wireless communication system includes a voltage controlled oscillator and estimating means for obtaining a frequency estimate to adjust the voltage controlled oscillator, thereby correcting an oscillator frequency error. The estimating means performs a number of block correlations on a received signal with a known midamble reference. The output of the block correlators are conjugately multiplied and summed to produce a low-variance estimate of the phase change between correlators. A number of the largest summed values are located, and the located values that exceed a detection threshold are summed to provide a single complex number whose angle is an estimate of the phase change between the correlators.

REFERENCES:
patent: 5684836 (1997-11-01), Nagayasu et al.
patent: 6181923 (2001-01-01), Kawano et al.
patent: 6606487 (2003-08-01), Sternberg
patent: 6728301 (2004-04-01), Chrisikos
patent: 2003/0064693 (2003-04-01), Sternberg

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

Automatic frequency correction method and receiver for time... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic frequency correction method and receiver for time..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic frequency correction method and receiver for time... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3561014

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