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. 23, 1986
Filed:
Feb. 14, 1983
Applicant:
Inventors:
Lawrence E Bergeron, Andover, MA (US);
Daniel F Daly, Lowell, MA (US);
Elaine C Grosso, Billerica, MA (US);
Assignee:
Wang Laboratories, Inc., Lowell, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L / ;
U.S. Cl.
CPC ...
381 35 ;
Abstract
Speech signal data compression is improved by a first compression using Time Domain Harmonic Scaling (TDHS), wherein two periods of voiced data are averaged together, followed by a second compression using Continuously Variable Slope Delta Modulation (CVSD). Pitch period detection and sampling-rate conversion are also features of the invention.
Bergeron, Lawrence. (1986). Compression and expansion of digitized voice signals (U.S. Patent No. 4631746). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4631746
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile