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:
Oct. 22, 1996
Filed:
May. 19, 1993
Eric Diehl, Strasbourg, FR;
Joel Hamon, Lipsheim, FR;
Thomas Consumer Electronics, S.A., Courbevoie, FR;
Abstract
A video signal processing system, such as a pay TV system, that includes a smart card access control feature decodes control information from data included in groups of video line intervals that represent data channels. Each channel includes data arranged in packets of data. Each packet includes both descriptor data and application data. The packets of data are extracted from the video lines by a data dispatcher. After receiving a packet from a data channel, the data dispatcher analyses the descriptor data to determine the target for the application data. The data dispatcher transmits the application data contained in the packet, without analyzing the data, to the correct target processor unit, e.g. either a control access processor or a decoder intelligent processor. Information that may be transferred to the decoder processor includes, a specific channel allocation table, data related to the VTR of the customer, and information related to a geographic location.