Patent · US Expired

Automatic user selected variable telephone message record and playback system

US4517410A · kind A · utility

98Cited by
21References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 2, 1982
Grant dateMay 14, 1985
Priority date
Expiry dateApr 2, 2002

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M1/652
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

An information system for storing and automatically retrieving selected information and transmitting it to a user over a telephone line is described. The system includes a recorder unit on which a series of information messages can be recorded on a recording medium and replayed from the recording medium. A telephone coupler unit for connection to a telephone line detects incoming calls on the line. An automatic controller operates the coupler unit to connect calls through an audio switch assembly to the recorder unit. The controller monitors connected calls to detect touch tone signals from a user and automatically operates the recorder unit in response to the signals to drive it to a user chosen position represented by the signals and to play the message recorded at that position.

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