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Cable television system with remote interactive processor
| Details |
Inventors: Hoarty, W. L.; Soske, Joshua W.;
Assignee: ICTV, Inc. (Los Gatos, CA)
Primary Examiner: Flynn; Nathan
Assistant Examiner:
Attorney, Agent or Firm: Bromberg & Sunstein LLP
An interactive television information system coupled to a cable television system having a headend for supplying information services and an information service distribution network for delivering information services to subscriber televisions. Each subscriber television is associated with a home interface controller. The home interface controllers receive the television information signals and include a data transceiver for data communications. A subscriber selection device associated with a home interface controller permits subscriber interaction through the data transceiver with an assigned interactive controller from a plurality of interactive controllers. The assigned interactive controller is in communication with the information sources and in television communication with its assigned home interface controller. Selection of an information source nay be made through channel selection of an apparent channel from any of a first group of apparent channels and a second group of apparent channels. Different information services on different apparent channels from the first group of apparent channels are provided to a given home interface controller via the same television information signal as the subscriber changes channel selection from one of the apparent channels in the first group of apparent channels to another apparent channel in the first group of apparent channels. To receive apparent channels from the second group of apparent channels, a home interface controller simply selects the television information signal at its input corresponding to the selected channel. |
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DETAILED DESCRIPTION The present invention provides in a preferred embodiment a system that achieves distribution of conventional cable services in traditional manners while providing interactive television information services on a demand basis using a switching arrangement, and it does so while surprisingly permitting both types of service to be accessed, as in the past, by the single action of channel selection.
In a preferred embodiment the invention provides an interactive television information system, for providing interactive cable television service when coupled to a cable television system having (i) an information source available at a headend for supplying a plurality of information services and (ii) an information service distribution network for delivering the information services to subscriber televisions.
In this embodiment, the interactive television system has a plurality of home interface controllers.
One such home interface controller is associated with each subscriber television and provides an output in communication with the subscriber television and has (i) a signal input for television information signals and an input selection arrangement for selecting a given one of the television information signals at the signal input, (ii) a channel selection arrangement for permitting a user to select an apparent channel, and (iii) a data transceiver operative over a data communications link.
The embodiment also has a node, in television communication with the information source over a first path of the network and with a group of the home interface controllers means over a second path of the network, and in data communications with the home interface controllers over the data communications link.
The node selects and provides information services obtained from the information source to each home interface controller in the group based on data obtained over the data communications link from each such home interface controller.
In one embodiment, the node and each home interface controller are so arranged that when any of a first group of apparent channels is selected on a given one of the home interface controllers, the node provides to it different information services on different apparent channels in the group all via the same television information signal selected by the input selection arrangement of such given home interface controller at a single carrier frequency for such given home interface controller
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