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. 03, 1989
Filed:
Sep. 17, 1987
Wataru Sakagami, Yokohama, JP;
Katsumi Iijima, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is disclosed an information record method comprising the steps of recording information in one record area of an information record medium having a plurality of record areas, reproducing the recorded information and checking error thereof, and recording an indicia indicating absence of error at a portion of the record area in accordance with an error check result. An information record apparatus used for the above method comprises a device for recording information on an information record medium having a plurality of record areas, a device for moving the record device to a record area to which information is to be recorded, a device for reproducing the information recorded in the record area, a device for checking error based on the reproduced information, and a device for recording an indicia for indicating absence of error at a portion of the record area in accordance with error check result.