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:
Jul. 23, 2013
Filed:
Mar. 10, 2010
Takumi Miyashita, Kawasaki, JP;
Takumi Miyashita, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A phase correcting apparatus, for a radio transmitter which obtains a first radio signal (RS) based on a first baseband signal (BB), includes a demodulator which demodulates a feedback signal from which a part of RSis extracted by a first carrier signal (CS) and which generates a second baseband signal (BB), a modulator which modulates a difference signal between BBand BBby a second carrier signal (CS) and which outputs a second radio signal (RS), a power amplifier which amplifies RSto obtain RS, a detector which detects a phase difference between BBand BB, and a phase rotator which rotates any phase of BB, BB, CS, or CSas a target phase correction amount, wherein the detector converts a desired analog signal obtained by multiplying BBand BBinto a digital signal, and which detects the phase difference based on digital data.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile