Switch structure for electronic timepiece

Patent 4257115 Issued on March 17, 1981. Estimated Expiration Date:

March 17, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3757322

3813533

Electronic timepiece having complementary electro-optical and electro-mechanical displays
Patent #: 3945191
Issued on: 03/23/1976
Inventor: VAN Berkum

Transparent keyboard switch and array
Patent #: 4017848
Issued on: 04/12/1977
Inventor: Tannas, Jr.

Switching assembly in combination wristwatch and calculator
Patent #: 4055755
Issued on: 10/25/1977
Inventor: Nakamura , et al.

Electronic display apparatus
Patent #: 4077032
Issued on: 02/28/1978
Inventor: Volkman

Switching mechanism for electronic wristwatch
Patent #: 4091610
Issued on: 05/30/1978
Inventor: Sasaki, et al.

Time information correction in combination timepiece and calculator Patent #: 4120036
Issued on: 10/10/1978
Inventor: Maeda , et al.

Inventors

Application

No. 05/876733 filed on 02/10/1978

US Classes:

368/69, With manually actuated display368/232, Including dial details only368/251, With electronic memory storage368/74, With significant winding or setting368/80, Hand and dial368/82, With electro-optical display968/899, Touch switches particularly adapted to timepieces (in general H03K 17/96) [G04G 1/00K]968/939, By building up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represent the time (this subclass is a combination of subclasses 942 and 954) [G04G 9/00H]968/973Acting at a number of different times [G04G 13/02C]

Examiners

Primary: Miska, Vit W.

International Classes

G04G 1/00 (20060101)
G04G 1/10 (20060101)
G04G 9/00 (20060101)
G04G 13/00 (20060101)
G04G 13/02 (20060101)

Foreign Application Priority Data

1977-02-12 JP

Abstract

A switch structure for an analog quartz crystal timepiece having a watchglass plate, a time dial to display time in an analog mode, and a digital display device, which switch structure comprises a plurality of transparent electrically conductive electrode films provided on the watchglass plate at positions corresponding to numerical display indicia on the time dial to permit generation of input signals corresponding to the numerical display indicia, respectively.