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. 12, 2011
Filed:
Dec. 07, 2007
Toru Matsuura, Osaka, JP;
Hisashi Adachi, Osaka, JP;
Toru Matsuura, Osaka, JP;
Hisashi Adachi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A transmission circuit capable of transmitting a modulated wave signal using polar modulation in a broad band and with low power consumption is provided. The transmission circuit generates an amplitude signal and a phase signal based on data to be transmitted, and separates the amplitude signal into a low-frequency amplitude signal and a high-frequency amplitude signal. The transmission circuit amplitude-modulates the phase signal in a broad band using the high-frequency amplitude signal in a high-frequency voltage control sectionand an amplitude modulation sectionand amplitude-modulates the phase signal into low power consumption using the low-frequency amplitude signal in a low-frequency voltage control sectionand amplitude modulation section