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:
Jul. 18, 1989
Filed:
Oct. 01, 1986
Takayuki Aizawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A relay recording area is used in an information recording and reproducing apparatus for storing recording information or recorded information if a defective track or sector is found in a recording medium during data recording or reproduction. An information recording apparatus includes: an information recording medium divided into a plurality of recording areas; a record unit for recording information on the recording medium; a memory for storing information to be recorded on a first recording area of the recording medium when the information cannot be recorded on the first recording area; and a controller for controlling the record unit to record the information stored in the memory on a second recording area different from the first recording area.