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:
Jun. 01, 2004
Filed:
Jan. 15, 2003
Hiroyuki Ezuka, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
Disclosed is a transmission amplifier having a distortion compensator for compensating for distortion of an amplifier; an amplifier for amplifying the transmit signal that has undergone distortion compensation; a feedback unit for feeding an output signal from the amplifier back to the distortion compensator; and a delay circuit for inputting the transmit signal to the distortion compensator upon delaying the transmit signal for a delay time equivalent to time required for the feedback signal to arrive at the distortion compensator. A delay time T of the feedback signal at the time of stand-alone operation of the transmission amplifier and a delay time difference &Dgr;T between delay times of the feedback signal at the time of stand-alone operation and at the time of parallel operation are stored in advance. The delay time T is set in the delay circuit at the time of stand-alone operation, and (T +&Dgr;T) is set in the delay circuit at the time of parallel operation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile