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.

Date of Patent:
Nov. 06, 2001

Filed:

Oct. 06, 1998
Applicant:
Inventors:

Yoshihiro Shona, Tokyo, JP;

Seiichi Yamazaki, Tokyo, JP;

Keiichi Itoh, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06M 3/00 ;
U.S. Cl.
CPC ...
G06M 3/00 ;
Abstract

A frequency counter,includes a binary counter section,having a binary counter,for counting up frequency data, and a EEPROM counter section,having an EEPROM,containing frequency data. In a frequency count processing, frequency data of the EEPROM,are loaded into the binary counter,. The binary counter,executes count up by a specified frequency on the loaded frequency data. The counted up frequency data are written into the EEPROM,to update the frequency data of the EEPROM,. In one frequency count process, rewriting of the EEPROM,is completed once, which means that the number of time the EEPROM,is rewritten is reduced.


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