Patent · US Expired

Noise reduction circuit of synthetic speech generating apparatus

US4564954A · kind A · utility

6Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 5, 1983
Grant dateJan 14, 1986
Priority date—
Expiry dateJan 5, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG10L13/08
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A speech synthesizer may generate random sounds during die-down after power turn-off. To prevent such sound generation, the synthesizer clock circuit is grounded by an FET simultaneously with power turn-off.

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