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:
Oct. 17, 2006
Filed:
Aug. 14, 2003
Taiyi Cheng, San Jose, CA (US);
Josephus Van Engelen, Aliso Viejo, CA (US);
Minsheng Wang, Irvine, CA (US);
Taiyi Cheng, San Jose, CA (US);
Josephus van Engelen, Aliso Viejo, CA (US);
Minsheng Wang, Irvine, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A system and method is provided for stabilizing high order sigma delta modulators. The system includes an integrator having a limiter in the feedback path of the integrator. The integrator combines an input signal with a feedback signal generated by the limiter to produce an integrated output signal. The output signal is output to the next component of the sigma delta modulator. In addition, the output signal is fed back through the limiter. When an output signal received in the feedback path by the limiter exceeds the threshold value of the limiter, the limiter is activated and clamps the output signal to produce a limited signal. The limited signal is combined with the input signal to the integrator to produce the output signal.