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:
Jan. 30, 1996
Filed:
Oct. 29, 1993
Warren N Lieberfarb, Los Angeles, CA (US);
Christopher J Cookson, Los Angeles, CA (US);
Lewis S Ostrover, Los Angeles, CA (US);
Telectronics Pacing Systems, Inc., Englewood, CO (US);
Abstract
A system for allowing software publishers to control which video standard(s) can be recovered from an optical disk containing video source material. The disk may be digitally encoded so that any of NTSC, and other video signal standards can be generated upon proper decoding. But the disk also includes a code which can lock out one or more standards. Players for such disks may be capable of generating video signals according to all popular standards, in which case the user selects a desired standard. However, the player will generate a video signal of the selected standard only if there is an appropriate authorization code on the disk. The system allows manufacture of 'universal' players without necessarily impacting the contractual and marketing plans of motion picture companies, for example, which release films in different territories at different times. The control technique can be extended to lock out specific territories. Each player has a built-in territory code. The player will play a disk only if the disk contains an authorization code for the player's specific territory.