The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 27, 2004
Filed:
Apr. 21, 2003
Shang-Yuan Chuang, Tucson, AZ (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A delta sigma modulator circuit sums an input signal with a feedback signal representing signal conditions in a group of integrators to provide an input to a quantizer and monitors a signal at the quantizer output to produce a restore signal (RESETA) indicating an instability condition. An integrator includes a dual purpose switch (S3) that is operated together with first and second sampling switches to accomplish an input signal sampling operation and also is operated together with first and second charge transfer switches and an output reset switch to accomplish precise resetting of the integrator, without being directly connected to the amplifier inputs. The dual purpose switch and the reset switch are controlled, respectively, by performing a logical ORing of a first clock signal and the restore signal (RESETA) and by performing a logical ANDing of a non-overlapping second clock signal and the restore signal (RESETA).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile