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:
May. 16, 2017
Filed:
Jun. 17, 2015
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Naoshi Matsuo, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
An echo suppression device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: generating a corrected sound signal by suppressing an echo signal representing an echo generated by collecting, by a sound input unit, a sound arising from a reproduction sound signal reproduced by a sound output unit; obtaining a gain to attenuate the corrected sound signal according to a degree of distortion of the echo signal with which intensity of the echo signal non-linearly changes with respect to an intensity change of the reproduction sound signal; and suppressing the corrected sound signal according to the gain.