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:
Jan. 04, 2000
Filed:
Sep. 05, 1997
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375377 ; 704203 ; 704205 ;
Abstract
Signal-reproduction method and apparatus receive a code string formed by coding a frequency-axial spectral signal obtained by performing the spectral transformation of a time-axial acoustic-waveform signal, and decode the received code string. Subsequently, the method and apparatus reproduce the acoustic-waveform signal by extracting part of the spectral signal, and performing the reverse-spectral-transformation of the extracted part.