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:
Sep. 05, 2017
Filed:
Feb. 26, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Hiroyoshi Ishikawa, Kawasaki, JP;
Hikaru Ishikawa, Kawasaki, JP;
Kazuo Nagatani, Yokohama, JP;
Takuro Nishikawa, Yokohama, JP;
Ryo Koizumi, Kanagawa, JP;
Takeshi Sugiyama, Kanagawa, JP;
Yasuharu Amezawa, Kanagawa, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A peak suppression device includes a suppression-signal generating unit and a band pass filter (BPF). The suppression-signal generating unit generates a suppression signal that is obtained by adding, to a transmission signal, a frequency component in which components of frequencies from a boundary of a band of the transmission signal to a frequency that is away therefrom toward an out-band of the transmission signal by predetermined frequencies are attenuated, out of frequency components of a signal to suppress a peak of the transmission signal. The BPF attenuates, after the suppression signal is amplified by the amplifier, a frequency component outside the band of the transmission signal in the amplified suppression signal.