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:
Oct. 16, 1990
Filed:
Sep. 01, 1988
Applicant:
Inventors:
Seietsu Nara, Yokohama, JP;
Toshiyuki Kawagishi, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36470508 ;
Abstract
An electronic device with calendar function includes a timer for supplying a carry signal for every 24 hours in response to a clock signal and a date counter for counting the carry signal. A central processing unit (CPU) reads out the calendar data stored in a memory and adds the content of the date counter to the calendar data so as to perform the processing such as the updating process of year, month and date and the updating process for the leap year, when the CPU is operated in response to the start operation by provision of a keyboard or a reader/writer to which the electronic device is connected.