Patent · US Expired

Electronic timepiece with analog time display unit and electrooptic data display unit

US4985878A · kind A · utility

27Cited by
5References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 27, 1989
Grant dateJan 15, 1991
Priority date
Expiry dateNov 27, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04G9/0082
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A case member is coupled to a plate member so as to be movable between an opening position and a closing position with respect to the plate member. A switch input section is mounted on the upper surface of the plate member. An analog display unit for displaying time with hands is arranged on the upper surface of the case member. An electrooptic data display unit for displaying data is arranged on the lower surface of the case member. An electronic circuit for driving the analog display unit and the electrooptic data display unit is housed in the case member. The switch input section on the plate member is electrically connected to the electronic circuit of the case member. Data input from the switch input section to the electronic circuit is processed thereby and is displayed on the electrooptic data display unit. When the case member is set at the closing position, only the analog display unit is exposed. When the case member is set at the opening position, the electrooptic data display unit and the switch input section are exposed, and functions other than a watch function can be executed.

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