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:
Feb. 26, 2013
Filed:
Mar. 04, 2011
Mitsuharu Hamano, Kawasaki, JP;
Mitsuharu Hamano, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An electronic apparatus having communications capabilities, including: an envelope detector that detects an envelope of a transmission signal; a differentiator that differentiates the envelope with respect to time to obtain differential components; a filtering processor that filters the differential components; an integrator that integrates the filtered differential components with respect to time to generate an envelope tracking signal; an amplifying unit that amplifies the transmission signal; and a voltage controller that controls, in accordance with the envelope tracking signal, a voltage the amplifying unit uses to amplify the transmission signal.