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:
Oct. 15, 1985
Filed:
Jun. 07, 1983
Applicant:
Inventors:
Kenichi Yoshida, Osaka, JP;
Takashi Yokohara, Osaka, JP;
Kimizo Ono, Osaka, JP;
Yoshikazu Nishiwaki, Osaka, JP;
Koichi Tsuno, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01C / ;
U.S. Cl.
CPC ...
356350 ;
Abstract
An optical fiber gyro system provides a pair of separated optical paths containing partial common portions. A phase difference .DELTA..theta. is detected using a plurality of detectors which yield sin and cos functions in .DELTA..theta.. Functions are formed as linear couplings of these functions, and the phase difference .DELTA..theta. is obtained using the function of best sensitivity for the given range of .DELTA..theta..