The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 1996
Filed:
Jun. 30, 1995
Applicant:
Inventor:
Robert A Kimball, Scottsdale, AZ (US);
Assignee:
Durel Corporation, Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ; G09G / ; G09G / ;
U.S. Cl.
CPC ...
368 67 ; 368227 ; 3151693 ; 345102 ;
Abstract
An electronic watch, either digital or analog, includes an EL lamp powered by a split chip inverter having a low voltage portion incorporated into a first semiconductor chip and a high voltage portion incorporated in a second semiconductor chip. The first semiconductor chip preferably includes all the other low voltage circuitry of the watch, e.g. timer/divider circuitry and logic for driving a display.