Cable Services Technologies, Inc.

Jay B Schiller

Richard A Schmelzer

Daniel J Zigmond

William P Dawson

A system and method for ensuring accurate reception of digitally encoded files that are transmitted in non-real time from a distribution station to a plurality of receiving stations, e.g. cable headends. Each file is divided into a plurality of data packets, with the packets being transmitted via satellite to the headends. Each headend determines which packets are in error (i.e. missing or jumbled) and need to be re-transmitted to the headend from the distribution station. After such a determination, each headend communicates a request over a land-link, e.g. telephone line or internet, to the distribution station requesting re-transmission of the packets in error. The distribution station then re-transmits these particular packets either via the land-link or the satellite. Re-transmission in non-real time via the land-link allows the headend to simultaneously receive packets via satellite and land-link so as to reduce the time taken to transmit files from the distribution station to the headends. The different land-links coupling the distribution station to each receiving station allow different data packets to simultaneously be re-transmitted to different receiving stations.

System for distributing video/audio files from central location to a

A cable television (CATV) system including a plurality of headends, each headend outputting different video/audio programs to subscribers by way of a plurality of channels. The playlist or scheduling data corresponding to each channel is generated and modified by a separate and distinct scheduling computer, the scheduling computers for each channel being located at different locations. Such a system allows the output of each CATV channel at different headends to be generated, modified, and controlled via separate schedulers. This is advantageous in environments where different companies control the distribution of different channels. For example, company A, which outputs its programs via channel 1 may control the channel 1 playlist from its headquarters, while company B which outputs its programs via channel 3 may control channel 3 scheduling from its headquarters, the headquarters of companies A and B of course being remote from one another thereby enabling companies A and B to control their respective channel presentation from locations of their choice.

Growing community of inventors

Boulder, CO, United States of America

Jay B Schiller