Systems and methods for filter tuning using binary search...

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Unwanted signal suppression

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C327S513000

Reexamination Certificate

active

07944286

ABSTRACT:
A filter tuning system for quickly compensating a time constant using a binary search algorithm is disclosed. The filter tuning system includes a time constant detector, a comparator and a calibration unit. The time constant detector detects a time constant of a filter based on an integral value of a reference input signal using an integrator when the time constant of the filter changes according to a variation of a manufacturing process or a temperature. The integrator includes a capacitor changing according to a variation of the time constant of the filter. The comparator compares the detected time constant with a reference value. The calibration unit compensates the time constant of the filter using the binary search algorithm based on the comparison result until an error between the time constant and the reference value is reduced within an acceptable range.

REFERENCES:
patent: 4818903 (1989-04-01), Kawano
patent: 5245646 (1993-09-01), Jackson et al.
patent: 5914633 (1999-06-01), Comino et al.
patent: 6628163 (2003-09-01), Dathe et al.
patent: 6670846 (2003-12-01), Yamamoto et al.
patent: 6677814 (2004-01-01), Low et al.
patent: 6803813 (2004-10-01), Pham
patent: 7002404 (2006-02-01), Gaggl et al.
patent: 7078961 (2006-07-01), Punzenberger et al.
patent: 7339442 (2008-03-01), Godambe
patent: 7646236 (2010-01-01), Cicalini
PCT International Search Report dated Mar. 6, 2008 PCT/KR2007/006132.
Written Opinion of the International Searching Authority dated Mar. 6, 2008 PCT/KR2007/006132.

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

Systems and methods for filter tuning using binary search... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Systems and methods for filter tuning using binary search..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for filter tuning using binary search... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2638549

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