Patent · US Expired

Telephone on which the number called is composed by a crown of the horological type

US5508978A · kind A · utility

56Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 7, 1995
Grant dateApr 16, 1996
Priority date
Expiry dateAug 7, 2015

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B1/385
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A portable wireless telephone including a main unit of small volume to which an antenna, an earpiece and a microphone are connected. The means for composing a number to be called include a display system (4, 5, 13) in which the digits making up the number to be called can be displayed, one after another, by the manipulation of a crown (10). Such crown can be rotated (60) then pressed (61) in order respectively to choose a digit then confirm it and continuing thus until said number is entirely composed. The telephone can be advantageously combined with a timepiece.

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