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:
Aug. 10, 1982
Filed:
Mar. 26, 1980
Applicant:
Inventor:
Kenzi Furuta, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 73 ; 360 722 ; 360 744 ;
Abstract
There is provided a recorded-signal position detecting circuit which records a detection signal, whose frequency is much lower than that of an aural signal, in a tape during the recording mode in a manner to mix it upon the aural signal and reproduces the detection signal via a filter permitting the passage therethrough of this signal only, thereby to detect the position of the recorded detection signal. In this circuit, when the speed of the tape during the recording mode varies, the frequency of the detection signal varies with a change in such tape speed.