Patent · US Expired

Device for the digital recording and reproduction of speech signals

US5251261A · kind A · utility

18Cited by

9References

31Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Peter Meyer · Beverungen, DE
Rudolf Hofmann

Key dates

Filing date	Dec 3, 1990
Grant date	Oct 5, 1993
Priority date	—
Expiry date	Dec 3, 2010

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/12
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

Devices for the digital recording and reproduction of speech signals are used, for example in answering apparatus. In order to reduce the quantity of data to be stored without noticeably affecting the acoustic quality of the speech, it is proposed to encode speech signals by means of a residual signal speech encoder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.