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:
Mar. 14, 2000
Filed:
Jul. 23, 1993
Applicant:
Inventors:
Joji Kane, Nara, JP;
Akira Nohara, Nishinomiya, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L / ;
U.S. Cl.
CPC ...
704233 ; 704226 ;
Abstract
A frequency analysis system for eliminating noise from an information signal. The system receives an input signal containing noise, and discriminates an information signal from the noise in the input signal. The system then uses the detected noise to cancel noise in the input signal. In one embodiment, the system builds a history of noise information based upon prior detected noise in the signal, and uses this history to predict current noise in the signal.