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. 10, 2011
Filed:
Mar. 22, 2006
Chaim Shen-orr, Haifa, IL;
Eliphaz Hibshoosh, Tel Aviv, IL;
Yaacov Belenky, Maaleh Adumim, IL;
Yaakov (Jordan) Levy, Maaleh Adumim, IL;
Chaim Shen-Orr, Haifa, IL;
Eliphaz Hibshoosh, Tel Aviv, IL;
Yaacov Belenky, Maaleh Adumim, IL;
Yaakov (Jordan) Levy, Maaleh Adumim, IL;
NDS Limited, Staines, Middlesex, GB;
Abstract
A system for scrambling/descrambling packets of a stream of content, each packet having a must stay clear (MSC) section, the system including an input handler including a receiving module to receive the stream, a characteristic analyzer to analyze the stream in order to determine a data independent characteristic of each packet, and a scrambling /descrambling device operationally associated with the input handler, the scrambling/descrambling device including a receiving module to receive the data independent characteristic for each packet from the input handler, and an Initial Value module to determine an Initial Value for each packet as a function of the data independent characteristic of one of the packets being processed, wherein the scrambling/descrambling device is adapted to scramble and/or descramble the packets based on the Initial Value and a Control Word. Related apparatus and methods are included.