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:
Aug. 30, 1994
Filed:
Mar. 29, 1991
Applicant:
Inventors:
Toshifumi Takeuchi, Kanagawa, JP;
Takao Arai, Kanagawa, JP;
Yutaka Nagai, Kanagawa, JP;
Izumi Kimura, Kanagawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 59 ; 369-4 ; 360 13 ; 360 48 ;
Abstract
A digital signal recording method and apparatus for recording first digital data and second digital data on a writable disc without an interleave discrepancy therebetween. The first digital data is previously recorded and the second digital data is at least one of overlapped and joined with the first digital data on a writable disc so that no interleave discrepancy occurs.