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:
Nov. 25, 2014
Filed:
Jun. 19, 2014
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 3/46 (2006.01); H04B 17/00 (2006.01); H04Q 1/20 (2006.01); H04L 7/00 (2006.01);
U.S. Cl.
CPC ...
H04L 7/0016 (2013.01);
Abstract
A phase adjuster arranges phases of waveforms of a complex signal after orthogonal transform. An edge detector detects an edge of the complex signal after phase adjustment. A phase shift detector detects phase shift of an output signal of the edge detector between the in-phase signal and the quadrature signal after the orthogonal transform, and outputs a phase error signal (PE). The oscillator connected to mixers and a shifter to perform the orthogonal transform includes a phase adjustment section adjusting an edge of a voltage controlled oscillator (VCO) clock based on the phase error signal (PE) and correcting the phase shift of an original signal.