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:
Dec. 04, 2007
Filed:
Mar. 02, 2001
Hajime Kitani, Hamamatsu, JP;
Takuya Tamaru, Hamamatsu, JP;
Shigetomo Nakamura, Hamamatsu, JP;
Yamaha Corporation, Tokyo, JP;
Abstract
A motion-picture distributor () uses a computer system () to convert video signals from a master film () into serial video data () complying with DVD-Video standards. Further, the computer system () modifies the sequence of scene-data sets (--, . . . ) constituting the data () and encrypts the data for each scene-data set, thus producing encrypted non-serial video data (). The data () are separated into DVD-ROMs (--, . . . ), for distribution purposes. A theater () then uses a serialization apparatus () to read the data () from the DVD-ROMs (--, . . . ), and sorts the scene-data sets in a correct sequence, thus producing encrypted serial video data (). A motion picture projector () decrypts the data (), thereby preparing the data (). The data () are played back to view a movie. On the other hand, a movie distributor () may distribute the DVD-ROMs in a separated manner.