Patent ID: 7818775
Filing Date: 2010-10-19
Classification: G06F,H04N

Abstract:
1. A method comprising: recording broadcast programming for at least one television channel for a period of time, wherein the recording is performed upstream from subscribers in a television distribution system; after the period of time, keeping recorded programming for rebroadcast by request from at least one subscriber, wherein the request occurs prior to a second point in time based in part on requests made by other subscribers; wherein the request is for at least one television program contained in the recorded programming or for a time window for a particular channel; and further comprising deleting recorded content after a third period of time, wherein if more than N subscribers have requested the same content of the broadcast, deleting the content after a delay period T, wherein T=C*log(N), and further wherein C is a constant that may be changed to adjust the operation of the system based on subscriber feedback and system parameters including an amount of storage available.