Method and apparatus for providing on-demand access of stored content at a receiver in a digital broadcast system
First Claim
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1. A method of providing a user with information at a receiver in a digital broadcast system comprising the steps of:
- receiving content segments at said receiver, said content segments corresponding to respective partitions of content files being transmitted in said digital broadcast system, said content segments being transmitted with control data indicating which of said content segments relate to which of said content files, the total number of said content segments that constitute at least one of said content files, and segment identifiers to distinguish each of said content segments that belong in said at least one of said content files, some of said content files being on-demand files and provided with a file identification code indicating that said content can be selected for on-demand play back at said receiver;
storing at least one said file identification code corresponding to a selected one of said on-demand files in a memory device;
determining which received said content segments correspond to the selected said on-demand file using said control data, and said file identification code in said memory device; and
storing said content segments corresponding to said on-demand file in said memory device.
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Abstract
A receiver in a digital broadcast system is provided for storing broadcast content files for on-demand playback purposes. The content files are transmitted in a partitioned format. Users can select which content files are to be captured in a memory device following reception. The receiver is operable to monitor the reception of content file segments and, when a selected on-demand content file has been completely received, to generate an alert message to notify a user that the content is available for retrieval from the memory device and playback via an output device.
114 Citations
13 Claims
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1. A method of providing a user with information at a receiver in a digital broadcast system comprising the steps of:
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receiving content segments at said receiver, said content segments corresponding to respective partitions of content files being transmitted in said digital broadcast system, said content segments being transmitted with control data indicating which of said content segments relate to which of said content files, the total number of said content segments that constitute at least one of said content files, and segment identifiers to distinguish each of said content segments that belong in said at least one of said content files, some of said content files being on-demand files and provided with a file identification code indicating that said content can be selected for on-demand play back at said receiver;
storing at least one said file identification code corresponding to a selected one of said on-demand files in a memory device;
determining which received said content segments correspond to the selected said on-demand file using said control data, and said file identification code in said memory device; and
storing said content segments corresponding to said on-demand file in said memory device. - View Dependent Claims (2)
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3. A receiver in a digital broadcast system comprising:
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a memory device for storing content transmitted in a broadcast signal using said digital broadcast system, the content comprising on-demand data files which, if transmitted continuously in said broadcast signal, may require a significant amount of the instantaneous bandwidth of said digital broadcast system, said on-demand data files each being partitioned into segments that are interspersed in said broadcast signal, said broadcast signal being provided with at least one header comprising file identification codes to identify each of said on-demand data files being transmitted in said broadcast signal and segment information to indicate which of said segments in said broadcast signal correspond to which of said on-demand data files transmitted therein, said segment information comprising the total number of said segments that constitute at least one of said on-demand data files, and segment identifiers to distinguish each of said segments that belong in said at least one of said on-demand data files, said memory device also storing said file identification codes of selected said on-demand data files;
a reception device for receiving said broadcast signal; and
a processing device connected to said memory device and said reception device and being programmable to process the received said broadcast signal to obtain at least part of said content transmitted therein including said segments corresponding to the selected said on-demand data files using said file identification codes stored in said memory device, and to store said segments of the selected said on-demand data files in said memory device. - View Dependent Claims (4, 5, 6)
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7. A method of providing a user with information at a receiver in a digital broadcast system comprising the steps of:
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receiving content segments at said receiver, said content segments corresponding to respective partitions of content files being transmitted in said digital broadcast system, said content segments being transmitted with control data indicating which of said content segments relate to which of said content files, some of said content files being on-demand files and provided with a file identification code indicating that said content can be selected for on-demand play back at said receiver;
storing at least one said file identification code corresponding to a selected one of said on-demand files in a memory device;
determining which received said content segments correspond to the selected said on-demand file using said control data, and said file identification code in said memory device;
storing said content segments corresponding to said on-demand file in said memory device;
monitoring which of said content segments corresponding to said on-demand file are stored in said memory device and which said content segments have not yet been received; and
generating a message via an output device provided on said receiver to indicate when all of said content segments corresponding to said on-demand file are available for retrieval from said memory device for playback via said receiver. - View Dependent Claims (8, 9, 10, 11)
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12. A receiver in a digital broadcast system comprising:
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a memory device for storing content transmitted in a broadcast signal using said digital broadcast system, the content comprising on-demand data files which, if transmitted continuously in said broadcast signal, may require a significant amount of the instantaneous bandwidth of said digital broadcast system, said on-demand data files each being partitioned into segments that are interspersed in said broadcast signal, said broadcast signal being provided with at least one header comprising file identification codes to identify each of said on-demand data files being transmitted in said broadcast signal and segment information to indicate which of said segments in said broadcast signal correspond to which of said on-demand data files transmitted therein, said memory device also storing said file identification codes of selected said on-demand data files;
a reception device for receiving said broadcast signal;
a processing device connected to said memory device and said reception device and being programmable to process the received said broadcast signal to obtain at least part of said content transmitted therein including said segments corresponding to the selected said on-demand data files using said file identification codes stored in said memory device, and to store said segments of the selected said on-demand data files in said memory device; and
an output device connected to said processing device, said processing device being operable to generate an alert message when all of said segments corresponding to one of the selected said on-demand data files have been received. - View Dependent Claims (13)
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Specification