Open Tv Corporation

Nagravision S.a.

Nir Livay

Scott Jantz

Frederic Thomas

José-Emmanuel Pont

Frédéric Thomas

David Servignat

Jose-Emmanuel Pont

A pay television satellite broadcast includes validation data that can be used to validate authenticity of live global positioning system (GPS) data. The validation data may be included within entitlement messages and encrypted for security and selective reception by authorized receivers. A navigation system may compute checksums of received live GPS data and compare with the validation data for a match. A decision about whether or not to use the live GPS data may be taken based on whether or not the computed checksums match the validation data received via the pay television satellite broadcast signals.

Techniques for securing live positioning signals

The present invention relates to the domain of control of access to audiovisual content transmitted to a receiver, in particular control based on the localization of the receiver. This invention proposes a method of control of access to content transmitted to a receiver, said receiver being part of an access geographic control system comprising verification means and security means, the method comprising the following steps:

Method for controlling access to broadcast content

Growing community of inventors

Gainesville, FL, United States of America

Nir Livay