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.:

US 6243340 B1

Date of Patent:

Jun. 05, 2001

Filed:

Jul. 24, 1998

Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessed

Applicant:

Inventors:

Tamotsu Ito, Ayase, JP;

Tsukasa Hasegawa, Hiratsuka, JP;

Atsushi Saito, Hino, JP;

Shigemitsu Higuchi, Fujisawa, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Mattingly, Stanger & Malur, P.C.

Primary Examiner:

Aristotelis M Psitos

Int. Cl.

CPC ...

H04N 5/781 ;

U.S. Cl.

CPC ...

H04N 5/781 ;

Abstract

A video signal recording apparatus using an information recording medium, having: a unit for identifying and detecting a WO type information recording medium and a rewritable type information recording medium; a control unit for each of the WO type information recording medium and the rewritable type information recording medium; and a display apparatus for displaying a detection result of the detecting unit. In the video signal recording apparatus using the information recording medium, file management information to form a directory is recorded as intermediate information onto the information recording medium.

Find Patent Forward Citations

Ito, Tamotsu. (2001). Information recording apparatus including system control means for producing managing information for managing data recorded on an information recording medium and preventing designated data from being accessed (U.S. Patent No. 6243340). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6243340

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