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:
Dec. 26, 2000
Filed:
Jul. 07, 1998
Applicant:
Inventor:
Yuji Maeda, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L / ;
U.S. Cl.
CPC ...
704207 ; 704219 ; 704220 ;
Abstract
A signal identifying device which can identify an input signal easily includes a pitch extracting (4Y) for extracting a pitch component of the input signal (S1), and energy calculating unit (4X) for calculating an energy component of the input signal, and identifying unit (4Z) for executing a predetermined operation to the pitch component and the energy component and for identifying whether the input signal is a voice signal or music signal. The voice signal generally has the characteristics evident in energy, and has strong periodicity (i.e., pitch component) comparing compared to the music signal.