1985-86 - The Pipeline Delivery System
| United States Patent 4937821
An information delivery system which continuously provides sets of information which can be selected by a user. Digital data is encoded as analog signals which are used to amplitude modulate a carrier signal. A plurality of such modulated carrier signals, each constituting a subchannel, are mixed together to form a single channel which can be delivered to a user over a cable or otherwise. The data provided on each carrier in the channel constantly repeats itself so that the entire set of data on a particular carrier will be available to a user in a relatively short time regardless of the time of access by the user. A first subchannel contains an index to the remaining subchannels to allow user selection of a particular set of information.
This patent is referenced by 79 other patents, including patents by:
Apple Computer, Intel Corporation, Scientific-Atlanta, Bell Atlantic, Gemstar, TV Guide, News Datacom and many others.
© 2017 COPYRIGHT All Rights Reserved, Except:
Permission to use, copy, and distribute these materials for not-for-profit educational purposes, without fee and without a signed licensing agreement, is hereby granted, provided that "Implicity" - www.implicity.org" (with a functioning hyperlink when online) be cited as the source and appear in all excerpts, copies, and distributions. Thank you.