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:
Jul. 20, 1993
Filed:
Oct. 17, 1990
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
This invention provides a novel speech coding system which recursively executes a filter-applied 'Toeplitz characteristic' by causing a drive signal (i.e., an excitation signal) to be converted into a 'Toeplitz matrix' when detecting a pitch period in which distortion of the input vector and the vector subsequent to the application of filter-applied computation to the drive signal vector in the pitch forecast called either 'closed loop' or 'compatible code book' is minimized. The vector quantization method substantially making up the speech coding system of the invention is characteristically used by the system.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile