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. 05, 1999
Filed:
Feb. 11, 1997
Masayoshi Nakagawa, Fukushima-ken, JP;
Makoto Moriya, Fukushima-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
The present invention intends to provide a servo information writing system capable of writing servo information to an information recording disk received in a cartridge and having a relatively small storage capacity, without design modification of the disk and without decrease in storage capacity of the disk. To this end, the servo information writing system comprises: a disk loading portion for loading thereon an information recording disk received in a cartridge and for rotating the disk when the disk is loaded thereon; a hard disk to which clock information is written and which rotates together with the disk loading portion; a head disposed in proximity to the information recording disk as loaded on the disk loading portion to write servo information to the disk; a head disposed in proximity to the hard disk to exchange clock information with the hard disk; and a servo information forming section for forming servo information with the clock information read by the latter head as a cycle and supplying the thus-formed servo information to the former head.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile