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:
Aug. 01, 1989

Filed:

Jul. 25, 1988
Applicant:
Inventors:

Giichiro Shimizu, Tokyo, JP;

Toshiharu Okuyama, Tokyo, JP;

Yoshio Wakatsuki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ;
U.S. Cl.
CPC ...
33832 ;
Abstract

An oscillator oscillates at a frequency determined by the distance moved by a probe. The probe in contact with an object under measurement, moves according to the displacement of the object. A controller computes the distance moved by the probe from a reference position at predetermined time intervals by using the shift of the oscillating frequency of the oscillator. The controller further decides if the computed distances are within a predetermined range. If the computed distances moved are within that range, the controller supplies the computed distance moved to a transmitter, which in turn wirelessly transmits the distance. When the computed distance moved is outside the predetermined range, the controller does not output the distance moved to the transmitter, nor does it supply the distance moved every four computations of the distance moved.


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