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Cryptography > Video Cryptography > Video Electric Signal Modification (e.g., Scrambling) > Usage Or Charge Determination Usage Or Charge DeterminationUsage Or Charge Determination patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.08/30/07 - 20070201695 - Pay per minute for dvb-h services Provided are apparatuses, methods, and user interfaces for requesting access to a program or service, receiving the requested program or service and displaying the requested program or service at a user terminal. In one example, a request for a period of time for access to the program or service is ... 06/14/07 - 20070133797 - Conditional access method and devices A data stream contains content data that can be decrypted using control words. ECM messages that are included in the stream and contain the control words that is required for decrypting nearby content data. EMM messages contain management information for entitling selected stream receiving devices to decrypt content data from ... 07/20/06 - 20060159264 - System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systems A method for forwarding messages containing cryptographic keys from a conditional access system that controls a population of set-top boxes to an encryption renewal system. The method includes storing a fictitious address of a virtual set-top box; generating a message based on the fictitious address, the message containing a cryptographic ... 09/22/05 - 20050207578 - Content distribution system, content distribution method, information processing apparatus, and program providing medium A content distribution is performed by a secure container including a content encrypted by a content key and container information set for a content transaction. The container information includes a person identification certificate identifiers list. Usage control status information including the list is generated and stored in a device during ... 09/08/05 - 20050195978 - Method and apparatus for encoding and selective distribution of licensed digital content A method and apparatus for capture and distribution of audio and video media including digitalization, encryption and media management from live and archived audio and video sources. The method and apparatus utilizes a unified software application to employ digitalization, distribution, digital rights management, and encryption in real time based on ... 06/30/05 - 20050141712 - Method for subscribing service and distributing encryption key based on public-key encryption algorithm in digital catv system A method for subscribing a service and distributing encryption key based on public-key encryption algorithm in a digital CATV system are disclosed. In accordance with an aspect of the present invention, there is provided a method including the steps of: a) generating a charged service application message; b) generating a ... ### FreshPatents.com Support |