Interactive satellite broadcast network
August 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3668307 System for transmitting information provided with means for controlling access to the information transmitted Encryption using destination addresses in a TDMA satellite communications network Apparatus and method for cryptographic identity verification Method and apparatus providing registered mail features in an electronic communication system Multi-layer encryption system for the broadcast of encrypted information Wireless transmission from the television set to the television station Signal encryption and distribution system for controlling scrambling and selective remote descrambling of television signals Cryptographic system using interchangeable key blocks and selectable key fragments Communication system control arrangement InventorAssigneeApplicationNo. 932241 filed on 08/19/1992US Classes:380/211, Interactive TV380/270, Wireless communication705/53, Including third party for collecting or distributing payment (e.g., clearinghouse)705/78, Including third party713/153Particular node (e.g., gateway, bridge, router, etc.) for directing data and applying cryptographyExaminersPrimary: Cangialosi, SalvatoreAttorney, Agent or FirmInternational ClassH04L 009/16AbstractEncrypted communications ensure privacy of communications point-to-point in a network of interactive video stations interconnected by a broadcast network. The encryption as a function of personal identity keys uniquely assigned to each station protects private communications both incoming and outgoing. Thus, a central facility having the only directory of the personal identity keys intercepts encrypted communications for reformatting and encrypting to redirect to a designated target station in the network. The keys are thus secured, and the broadcast communications are not readily analyzed for deriving sensitive data, or the communicating parties. In this manner financial transactions such as electronic payment from banks authorized in private communications with vendor stations are subject to intrusion and/or fraud.Field of SearchPublic key | |
