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:
Jun. 26, 2007
Filed:
Mar. 30, 2000
Ryuji Ishiguro, Tokyo, JP;
Itaru Kawakami, Kanagawa, JP;
Mitsuru Tanabe, Kanagawa, JP;
Yuichi Ezura, Kanagawa, JP;
Hirokazu Kawahara, Kanagawa, JP;
Ryuji Ishiguro, Tokyo, JP;
Itaru Kawakami, Kanagawa, JP;
Mitsuru Tanabe, Kanagawa, JP;
Yuichi Ezura, Kanagawa, JP;
Hirokazu Kawahara, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A system for preventing recorded data from being illicitly read out and analyzed. An Internet connection interfacetransmits a program executed by an adapterto an authentication station, whilst receiving the program in an encrypted form from the authentication station. A hard discrecords the encrypted program, received from the authentication station. An interfacetransmits the program recorded on the horizontal directionon the adapter