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:
Nov. 07, 1989
Filed:
Mar. 16, 1988
Applicant:
Inventors:
Hiroyuki Kihara, Kodaira, JP;
Kazuya Mitaki, Hoya, JP;
Assignee:
Citizen Watch Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G04B / ; G04B / ;
U.S. Cl.
CPC ...
364550 ; 36457101 ; 368 11 ; 368 66 ; 368202 ;
Abstract
A sensor signal processing apparatus for measuring a physical quantity through the use of a sensor. A data processor automatically provides an operation equation by applying two known physical quantities, at two points, to the sensor and storing the data at these two points in a pair of memories. The quantities in the memories are then converted in accordance with a sensor characteristics equation and displayed on a display unit. In addition, a battery is used to supply the data processor with power. If that battery's voltage level falls below a certain point an alarm is sounded, indicating that the battery should be replaced.