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. 14, 2012
Filed:
Sep. 13, 2007
Koichi Nose, Tokyo, JP;
Haruya Ishizaki, Tokyo, JP;
Masayuki Mizuno, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
To provide, for example, a pulse input type power amplifying apparatus that can be operated at low voltage and low power, effectively suppressing generation of harmonic component. The amplifying apparatus includes at least two amplification circuits, one and other amplification circuits, composed of multiple amplifiers whose output sides are connected to each other, driven at the same frequency. The multiple amplifiers forming the one amplification circuit are configured with a first inverting amplifier Minputting and amplifying a reference pulse, and a second inverting amplifier Mto which an inverted pulse formed by shifting and inverting the phase of the reference pulse is inputted. The other amplification circuit is configured with the first inverting amplifier Mand the second inverting amplifier Mto each of which other wide pulse with a width greater than that of the reference pulse is commonly inputted.