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:
Dec. 27, 1988
Filed:
May. 29, 1987
Applicant:
Inventor:
Ken-ichiro Kawasaki, Saitama, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 70 ; 360 / ;
Abstract
A reel speed servo for inclined recording tracks such as used in R-DAT. The two rotary magnetic heads are inclined at different azimuth angles. The relative speed between each of the heads and the tape is detected. Then the difference of these relative speeds is determined to thereby detect the speed of the tape, which is thus used in the reel speed servo.
Kawasaki, Ken-ichiro. (1988). Fast mode reel servo in a magnetic recording/reproducing apparatus (U.S. Patent No. 4794473). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4794473
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile