U.S. patents available from 1976 to present.
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Electronic device designed to permit detachable attachment of an external memory device thereto

Patent 5355352 Issued on October 11, 1994. Estimated Expiration Date: Icon_subject December 17, 2012. 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.

Patent References

Housing for an energy cell in a wristwatch Patent #: 5181192
Issued on: 01/19/1993
Inventor: Paratte, et al.

Inventors

Assignee

Application

No. 955751 filed on 12/17/1992

US Classes:

368/281, Wrist worn368/10, COMBINED WITH DISPARATE DEVICE368/41, WITH MEMORANDUM HOLDER OR ERASABLE WRITING SURFACE368/223DISPLAYS OR DISPLAY DEVICE DETAILS

Examiners

Primary: Roskoski, Bernard

Attorney, Agent or Firm

Foreign Patent References

  • 2641092 FR. 06/13/1990
  • 2078401A GB. 01/13/1982
  • 2159304A GB. 11/13/1985

International Class

G04B 037/00

Foreign Application Priority Data

1991-04-24 JP

Abstract

A wrist watch (1) is provided with a cover member (3) attached to a wrist watch case (2) by a coupling portion (3) in a openable/closable manner. A liquid crystal display device (4) to display time is incorporated in the cover member (3). A retaining section (7) for retaining a disk-like data memory is provided on the upper surface of the wrist watch case (2). The data memory in the retaining section (7) is securely held with the cover member (3) closed. Data in the disk memory (9) is read and processed by the electronic circuitry (2b) of a watch, and is sent to the liquid crystal display device (4) via a flexible circuit board (2e). The data is then converted into a time which is in turn displayed. The data memory can therefore be very easily attached or detached, and is securely held. The wrist watch itself can be made compact. Replacing the data memory with another one can provide advantages such as displaying various types of data.

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