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. 17, 1989
Filed:
Feb. 27, 1987
Applicant:
Inventors:
Toshikazu Kodo, Neyagawa, JP;
Shinichi Tanaka, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 32 ; 360 101 ;
Abstract
A recording/reproducing apparatus disclosed herein uses a disk-type storage medium which has a spiral track divided into a plurality of continuous logical tracks. Each logical track extends at an angle less than 360.degree.. A head executes a track jump for retracing a desired logical track during tracing a logical track next to the desired track. Thus, no specific retrace area is necessary to be provided on the storage medium.