Patent · US Expired

Telephone service payment system using a sound emitting token

US5136632A · kind A · utility

20Cited by
3References
4Claims
0Family size

Inventor

Key dates

Filing dateApr 4, 1991
Grant dateAug 4, 1992
Priority date—
Expiry dateApr 4, 2011

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG07F17/0014
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A telephone service payment system having portable electronic devices (J) for transmitting a coded sequence (SQ), also involves specialized vocal host computers (SDS) and at least one affiliated computer (OA), along with a management computer (OGC). Such a telephone service payment system is used in conjunction with the placing of bets by telephone.

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