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:
Aug. 23, 2005
Filed:
Jun. 22, 2001
Takaaki Konishi, Ibaraki, JP;
Hiroshi Azakami, Ibaraki, JP;
Kazuya Ueda, Hirakata, JP;
Naoya Tokunaga, Moriguchi, JP;
Hisaya Kato, Soraku-gun, JP;
Hiroaki Ozeki, Osaka, JP;
Takaaki Konishi, Ibaraki, JP;
Hiroshi Azakami, Ibaraki, JP;
Kazuya Ueda, Hirakata, JP;
Naoya Tokunaga, Moriguchi, JP;
Hisaya Kato, Soraku-gun, JP;
Hiroaki Ozeki, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In an automatic gain control amplifier, an RF automatic gain controller controls the gain of a radio frequency signal. A frequency converter frequency-converts the radio frequency signal into an intermediate frequency signal. An IF automatic gain controller controls the gain of the intermediate frequency. A level detector detects a signal level of the gain-controlled intermediate frequency signal, and generates a level signal. An automatic gain control signal generator separately controls, based the level signal, the RF automatic gain controller and the IF automatic gain controller.