System manager and hypertext control interface for interactive cable television system

Abstract

A system manager for use with an interactive cable system. The cable system has (i) an information service network for delivering information services to subscriber televisions, (ii) a plurality of home interface controllers, each home interface controller associated with a subscriber television and having a data transceiver operative over a data communications link to the headend, (iii) a plurality of subscriber selection devices, each such device associated with a home interface controller and in communication with the data transceiver thereof, for permitting subscriber interaction, and (iv) a plurality of interactive controllers, disposed at the headend, each interactive controller in assignable television communication over the network with a subscriber television and in data communication with a subscriber selection device. The system manager includes a call set-up server to receive and handle an initial data exchange with a calling home interface controller; a first service allocation server to pass communication and control associated with the calling home interface controller to one of a plurality of first application processors, with each first application processor being one of the interactive controllers, for providing a first information service; and a second service allocation server to pass communication and control associated with a home interface controller seeking a second information service to an available one of a plurality of second application processors, with each second application processor being one of the interactive controllers, to provide the second information service. The call-set up server, first service allocation server, and second service allocation server operate as independent processes.