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:
May. 11, 1999
Filed:
Feb. 25, 1997
Jun Yonemitsu, Kanagawa, JP;
Yoshinari Chida, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A recording medium and a picture display system in which multiplexed data recorded on a recording medium sold only in a specified territory or multiplexed data broadcast for a specified territory can be displayed only on a decoding reproducing system sold or installed only in such territory. Multiplexed data including a territory code are recorded on a recording medium. This territory code is compared to the inner territory code in the decoding device and, if the territory code of the recording medium includes the inner territory code of the decoding unit, the recording medium is decoded and reproduced. In the multiplexed data, allowable period data is stated in association with the territory code. This allowed period is compared to the date of a calendar generator in the decoding unit. If the date of the calendar generator is comprised within the allowed period, the recording medium is decoded and reproduced.