Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Reexamination Certificate
2006-05-09
2006-05-09
Nguyen, Simon (Department: 2685)
Telecommunications
Transmitter and receiver at separate stations
Distortion, noise, or other interference prevention,...
C455S296000, C375S350000, C327S337000, C327S362000, C327S363000
Reexamination Certificate
active
07043206
ABSTRACT:
An offset correction analogic circuit capable of compensating the offset of a digital baseband is described. The circuit comprises analog means to receive an output differential signal issued from a differential signal path. The differential signal path may be a baseband filter as used in digital communication systems. The baseband filter inputs an input differential signal having an offset to be compensated. The output differential signal is fed into an analog integrator to generate a pulsed signal either on a first output line or on a second output line according to the polarity of the output differential signal. The pulsed signal is then integrated into a switched capacitor and a differential compensation offset signal is issued. The frequency of the pulsed signal is preferably proportional to the voltage value of the output differential signal. The compensation offset signal may be summed with the input differential signal into a summing circuit.
REFERENCES:
patent: 5471665 (1995-11-01), Pace et al.
patent: 5500894 (1996-03-01), Hershbarger
patent: 5648738 (1997-07-01), Welland et al.
patent: 6005431 (1999-12-01), Mehr et al.
patent: 6313685 (2001-11-01), Rabii
patent: 6351506 (2002-02-01), Lewicki
patent: 6400214 (2002-06-01), Aram et al.
patent: 6420917 (2002-07-01), Klemmer
patent: 6424208 (2002-07-01), Pinai
patent: 6426663 (2002-07-01), Manlove et al.
patent: 6476593 (2002-11-01), Schmal et al.
patent: 6535561 (2003-03-01), Boesch et al.
patent: 6577183 (2003-06-01), Nakamura et al.
patent: 6606359 (2003-08-01), Nag et al.
Herdey Cheryl
Kaiser Shane
Pai Hung-Chuan
Perraud Laurent
Sornin Nicolas
Blecker Ira D.
Nguyen Simon
LandOfFree
Fully integrated offset compensation feedback circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fully integrated offset compensation feedback circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fully integrated offset compensation feedback circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3548083