Virtual on-demand digital information delivery system and method
Patent 5790935 Issued on August 4, 1998. Estimated Expiration Date: 
January 30, 2016. 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.
January 30, 2016. 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 ReferencesVideo-on-demand services using public switched telephone network Apparatus and method of selecting video programs based on viewers' preferences Seamless transmission of non-sequential video segments Video on demand with memory accessing and or like functions Patent #: 5442390 InventorApplicationNo. 594064 filed on 01/30/1996US Classes:725/91, Server or headend709/219, Accessing a remote server725/92, Mass storage725/95Channel or bandwidth allocationExaminersPrimary: Peng, John K.Assistant: Flynn, Nathan J. Attorney, Agent or FirmInternational ClassH07N 007/173AbstractA digital information system delivers virtual on-demand information over existing, as well as the next generation, digital transport systems by offloading a portion of the systems' peak bandwidth requirements to the local subscribers. A collaborative filtering system synthesizes the preferences of all of the subscribers and then predicts those items that each subscriber might like, and therefore request. Each subscriber is provided with a local storage device for storing, during off-peak hours, those items recommended by the collaborative filtering system. As a result, only a relatively few subscriber requests must be serviced directly from the central distribution system.Other References
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