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. 19, 2006
Filed:
Mar. 28, 2001
Takashi Kaku, Kawasaki, JP;
Hideo Miyazawa, Kawasaki, JP;
Takahiro Kurakata, Kawasaki, JP;
Hiroyasu Murata, Kawasaki, JP;
Takashi Kaku, Kawasaki, JP;
Hideo Miyazawa, Kawasaki, JP;
Takahiro Kurakata, Kawasaki, JP;
Hiroyasu Murata, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In a noise canceling method and an apparatus therefor which notices the colored noise looked macroscopically, positively cancels the dominant noise component in the low frequency band, shifts the S/N value to plus, and can extract the reception signal buried in the low frequency band and having a comparatively high level, a signal in which a time axis, an amplitude, and a phase are specified or a zero-point signal is inserted into a transmission signal by an inserter, a noise component is interpolated by using the specified signal or the zero-point signal by a noise canceler, and an originally transmitted signal is regenerated by subtracting the noise component from the reception signal.