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:
Nov. 10, 1998
Filed:
Dec. 07, 1995
Masuyoshi Yachida, Yokohama, JP;
Richo Company, Ltd., Tokyo, JP;
Abstract
The reliability due to time-elapsing variation of the magneto-optic disk and the data recorded on the magneto-optic disk are evaluated. A magneto-optic disk driving apparatus can preserve a sheet of magneto-optic disk during the period over the endurable number of years, and a file manager can issue an alarm to the user in accordance with the deterioration state of the magneto-optic disk. The magneto-optic disk drive controlling apparatus for controlling the magneto-optic disk driving apparatus capable of taking in or taking out the magneto-optic disk by the operation of user's hands or the automatic transportation by use of the host computer comprises a disk deterioration judging (grasping) measure and a disk deterioration tolerance excess alarming measure. The file manager for realizing the IS&C file format in the magneto-optic disk by performing the operation of reading/writing the data on the magneto-optic disk in the magneto-optic disk driving apparatus by use of the execution program comprises a disk deterioration state grasping measure and a disk deterioration state alarming measure.