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:
Mar. 01, 1977
Filed:
May. 27, 1975
Applicant:
Inventor:
Ernest C Ho, Newport Beach, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G04B / ;
U.S. Cl.
CPC ...
58 5 / ; 340336 ;
Abstract
A digital watch display system with a dual display element is provided, a liquid crystal for use in daylight, or bright light, and a light emitting diode for use in dim light. The light emitting diode display causes an over drain on the battery used for the watch. In order to minimize this, instead of the usual four digit LED display, two for hours and two for minutes, only two LED display digits are used and are alternately turned on to display hours and minutes.