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:
May. 12, 2009
Filed:
Feb. 23, 2004
Gopal Venkatesan, Aliso Viejo, CA (US);
Amy Hundhausen, Laguna Beach, CA (US);
Hosahalli Srinivas, Irvine, CA (US);
Erik Berg, Laguna Beach, CA (US);
Gopal Venkatesan, Aliso Viejo, CA (US);
Amy Hundhausen, Laguna Beach, CA (US);
Hosahalli Srinivas, Irvine, CA (US);
Erik Berg, Laguna Beach, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
An BTSC encoder with an improved digital filter structure substantially implemented on a single CMOS integrated circuit is described. By cascading first and second order allpass filter structures to form a higher order digital filter, such as a Cauer low pass filter, limit cycle oscillations are reduced or eliminated, word-length growth from one stage to the next is contained, and a more efficient overall filter structure and performance is obtained.