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:
Sep. 06, 2011
Filed:
Dec. 25, 2008
Applicant:
Akira Nagayama, Tokyo, JP;
Inventor:
Akira Nagayama, Tokyo, JP;
Assignee:
Kyocera Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 11/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a case where two constant envelope signals corresponding to an input signal are generated through analog signal processing, variation in detection sensitivities of amplitudes of those signals is suppressed. At least one of a mixer () for detecting an amplitude of a first intermediate signal Sand a mixer () for detecting an amplitude of a second intermediate signal Sdetects an amplitude of a given reference signal, and sampling hold circuits () hold a voltage related to those amplitudes. Then, detection sensitivities of the mixer () are corrected based on the held voltage.