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:
Apr. 20, 2010
Filed:
Jul. 02, 2004
Ramon A. Gomez, San Juan Capistrano, CA (US);
Charles Brooks, Laguna Beach, CA (US);
Leonard Dauphinee, Irvine, CA (US);
Ramon A. Gomez, San Juan Capistrano, CA (US);
Charles Brooks, Laguna Beach, CA (US);
Leonard Dauphinee, Irvine, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
A front end circuit for a television receiver includes a demultiplexer for inputting a multi-band signal from a signal source and separating the multi-band signal into corresponding bands. A plurality of amplifiers adjust gain on signals corresponding to the bands. A multiplexer combines outputs of the amplifiers into a gain-adjusted signal. A plurality of switches direct selected bands to corresponding tuners. The amplifiers are low noise amplifiers. The amplifiers adjust gain between the bands so as to have similar signal strength in the bands. A cable TV input may also be used, wherein the switches also direct signals from the cable TV to the corresponding tuners. Each amplifier can output two (or more) identical signals for its corresponding band, the multiplexer can be a dual multiplexer, and an output of the multiplexer includes only bands selected for direction to the tuners. The signal source comprises any of a broadcast channel received from an antenna, a cable TV channel received from a cable line, and a combination of the two.