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:
Jan. 11, 1994

Filed:

Sep. 08, 1992
Applicant:
Inventor:

Akio Ito, Konosu, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
34087021 ; 34087005 ; 36472417 ;
Abstract

An indicator control circuit includes a signal conversion circuit for converting an analog signal corresponding to a predetermined physical quantity into first digital data and a digital filter circuit for generating second digital data from the first digital data in accordance with a predetermined filter characteristic. An intermediate digital data is obtained during a process in which the second digital data is generated from the first digital data. The digital filter circuit includes operating circuit for operating the intermediate digital data so that a relationship between the first digital data and the second digital data has a hysteresis. The second digital data generated by the digital filter circuit is used for indicating the predetermined physical quantity on an indicator.


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