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. 03, 1998
Filed:
Sep. 25, 1996
Applicant:
Inventor:
Hirokazu Sakuma, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03N / ;
U.S. Cl.
CPC ...
341120 ; 341116 ;
Abstract
The encoder provided by the present invention computes an obtains a difference value between a maximum value and a minimum value of a simulated sinusoidal signal from the signal detecting section, computes an amplitude of said simulated sinusoidal signal in the amplitude computing section according to the difference value, decides an optimal reference voltage for an A/D converter or an optimal amplification factor and an optimal reference voltage for a signal amplifier for simulated sinusoidal signals, and sets a reference voltage for the A/D converter or an amplification factor and a reference voltage for the signal amplifier according to the optimal values.