Patent · US Expired

Voice-training apparatus

US5061186A · kind A · utility

11Cited by

3References

8Claims

0Family size

Inventors

Peter Jost · Weinheim, DE
Erwin Klosch · Wien, AT

Key dates

Filing date	Oct 25, 1989
Grant date	Oct 29, 1991
Priority date	—
Expiry date	Oct 25, 2009

Classification

Technology area (CPC G)Physics
CPC primaryG09B19/04
WIPO fieldControl
WIPO sectorInstruments

Abstract

In an apparatus for voice training, on several points of a student's body measuring devices are provided, which are connected to optical display devices. At each of these measuring devices, a pressure sensor amplifier is connected with an analog multiplexer, and a sound-pressure measuring device is directly connected to the respective display device.

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