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:
Mar. 23, 2004
Filed:
Mar. 21, 2000
Yasuaki Tohyama, Osaka, JP;
Etsuto Nakatsu, Osaka, JP;
Atsuo Ochi, Osaka, JP;
Naoshi Usuki, Kyoto, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A data stream is recorded and reproduced and a recording medium for the same are adapted to record in a control track an identification mark for identifying a specific track within a unit of plural tracks by superposing the identification mark upon a control pulse. A magnetic head travels along a predetermined path in the unit of plural tracks during a high-speed playback operation by phase-locking a rotational phase signal of a cylinder with a divided signal of the control pulse having a specific phase according to the reproduced identification mark.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile