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:
Sep. 21, 1993
Filed:
Nov. 13, 1990
Akira Yoshikawa, Nara, JP;
Kazuo Arai, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
An apparatus for high speed searching and reproduction of data recorded in a tape medium includes magnetic tape, a tape mover, a high speed tape mover, a rotation cylinder with at least one head, a speed sensor, a controller, and signal converter and processor. The speed sensor generates pulses based on the speed of the rotation cylinder. The controller controls the rotation speed of a rotation cylinder based on the pulses. The controller controls the rotation speed so that a track-directional component of a relative speed between a head of a rotation cylinder and the magnetic tape in a high speed moving state realized by the high speed mover equals a first moving state realized by the tape mover. The signal converter converts at least sub-code data of output signals issued from the head into digital signals in both the first moving state and the high-speed moving state. The sub-code data represents tape-position information. A signal processor processes the digital signals issued from the signal converter to read out the sub-code data.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile