Method for providing progressive download service for playback apparatus supporting BD-J specification
First Claim
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1. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
- (a) preparing an A/V data;
(b) dividing the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and
(c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus,wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips,wherein a first mathematical expression
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Abstract
A method for providing a progressive download service for a playback apparatus supporting a BD-J specification is disclosed. In accordance with the present invention, a standby time and a communication overhead necessary for receiving and playing a A/V data by a playback apparatus supporting a BD-J specification are minimized by dividing and playing a first clip and a second clip according to a size of clips.
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Citations
6 Claims
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1. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
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(a) preparing an A/V data; (b) dividing the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and (c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus, wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips, wherein a first mathematical expression
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2. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
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(a) preparing an A/V data; (b) dividing the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and (c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus, wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips, wherein the method further comprises; obtaining the first size, the second size, the media network bandwidth, the customer network bandwidth and the number of buffered clips from the clip division information; and selecting the number of the one or more first clips satisfying a second mathematical expression
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3. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
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(a) preparing an A/V data; (b) dividing the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and (c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus, wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips, wherein the method further comprises; obtaining the first size, the number of the one or more first clips, the media network bandwidth, the customer network bandwidth and the number of buffered clips; and selecting the second size satisfying a third mathematical expression
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4. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
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(a) preparing, by the A/V data providing server, an A/V data; (b) dividing, by the A/V data providing server, the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and (c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus, wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips, wherein a first mathematical expression
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5. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
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(a) preparing, by the A/V data providing server, an A/V data; (b) dividing, by the A/V data providing server, the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and (c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus, wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips, the method further comprising; obtaining the first size, the second size, the media network bandwidth, the customer network bandwidth and the number of buffered clips from the clip division information; and selecting the number of the one or more first clips satisfying a second mathematical expression
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6. A method for providing a progressive download service for an A/V data providing server and a playback apparatus supporting a BD-J specification, the method comprising steps of:
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(a) preparing, by the A/V data providing server, an A/V data; (b) dividing, by the A/V data providing server, the A/V data into a plurality of clips including a first clip group and a second clip group using a clip division information, wherein the first clip group includes one or more first clips each having a first size and the second clip group includes one or more second clips each having a second size larger than the first size; and (c) transmitting the plurality of clips from the A/V data providing server to the playback apparatus, wherein the clip division information comprises at least one of the first size, the second size, a number of the one or more first clips, a media network bandwidth of the A/V data, a customer network bandwidth necessary for transmitting the A/V data to the playback apparatus and a number of buffered clips, the method further comprising; obtaining the first size, the number of the one or more first clips, the media network bandwidth, the customer network bandwidth and the number of buffered clips; and selecting the second size satisfying a third mathematical expression
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Specification