Digital data-on-demand broadcast cable modem termination system
First Claim
1. A uni-directional cable modem termination system (CMTS) comprising:
- a communications interface for receiving data transmissions; and
a uni-directional interface for providing data transmissions, wherein said cable modem termination system does not require upstream communications.
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Abstract
The present invention teaches methods and systems for providing a cable modem termination system (CMTS) for enabling a data-on-demand (DOD) digital broadcast system to provide digital DOD services via a communications medium over one or more channels, the cable modem termination system comprising: a communications network interface for receiving at least one DOD service from the DOD digital broadcast system, wherein the DOD service is formatted as a stream of data blocks arranged in a schedule such that a first data block of the DOD service may be accessed at any selected time period; a unidirectional network interface for providing the stream of data blocks to a plurality of users, wherein the users may access the first data block at any time period and may access subsequent data blocks of the stream of data blocks thereby accessing the at least one DOD service.
83 Citations
45 Claims
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1. A uni-directional cable modem termination system (CMTS) comprising:
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a communications interface for receiving data transmissions; and
a uni-directional interface for providing data transmissions, wherein said cable modem termination system does not require upstream communications. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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16. A cable modem termination system (CMTS) for enabling a data-on-demand (DOD) digital broadcast system to provide digital DOD service via a communications medium over one or more channels, said cable modem termination system comprising:
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an communications network interface for receiving at least one DOD service from said DOD digital broadcast system, wherein said DOD service is formatted as a stream of data blocks arranged in a schedule such that a first data block of said DOD service may be accessed at any selected time period;
a uni-directional network interface for providing said stream of data blocks to a plurality of users, wherein said users may access said first data block at any time period and may access subsequent data blocks of said stream of data blocks thereby accessing said at least one DOD service.
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26. A cable modem termination system (CMTS) method for providing data-on-demand (DOD) digital services via a communications medium over one or more channels, said cable modem termination system method comprising the acts of:
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receiving at least one DOD service from a DOD broadcast system, wherein said DOD service is formatted as a stream of data blocks arranged in a schedule such that a first data block of said DOD service may be accessed at any selected time period;
transmitting said stream of data blocks to a plurality of users, wherein said users may access said first data block at any time period and may access subsequent data blocks of said stream of data blocks thereby accessing said at least one DOD service.
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36. A cable modem termination system (CMTS) for enabling a data-on-demand (DOD) digital broadcast system to provide digital DOD services via a communications medium over one or more channels, said cable modem termination system comprising:
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a first means for receiving at least one DOD service from said DOD digital broadcast system, wherein said DOD service is formatted as a stream of data blocks arranged in a schedule such that a first data block of said DOD service may be accessed at any selected time period;
a second means for providing said stream of data blocks to a plurality of users, wherein said users may access said first data block at any time period and may access subsequent data blocks of said stream of data blocks thereby accessing said at least one DOD service.
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Specification