CHANNEL SWITCHING METHOD AND METHOD AND APPARATUS FOR IMPLEMENTING THE METHOD
First Claim
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1. A broadcast-transmission apparatus comprising:
- a frame-extraction module which extracts partial videos, wherein each of the partial videos is extracted from video data corresponding to each of a plurality of channels currently being serviced;
a zapping-channel-generation module which generates a zapping channel by multiplexing the partial videos; and
a zapping-channel transmission module which transmits the multiplexed partial videos.
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Abstract
A channel-switching method and apparatus are provided. The channel-switching method includes switching from a first channel to a second channel, outputting a partial video corresponding to the second channel on a screen while main data of the second channel is being buffered to be output, and outputting the main data of the second channel on the screen.
81 Citations
25 Claims
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1. A broadcast-transmission apparatus comprising:
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a frame-extraction module which extracts partial videos, wherein each of the partial videos is extracted from video data corresponding to each of a plurality of channels currently being serviced; a zapping-channel-generation module which generates a zapping channel by multiplexing the partial videos; and a zapping-channel transmission module which transmits the multiplexed partial videos. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of providing data of a zapping channel, comprising:
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extracting partial videos; generating a zapping channel by multiplexing the partial videos; and transmitting the multiplexed partial videos, wherein each of the partial videos is extracted from video data corresponding to a plurality of channels currently being serviced. - View Dependent Claims (9, 10, 11, 12)
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13. A broadcast-reception apparatus comprising:
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a zapping-channel-reception module which receives data included in a zapping channel that is obtained by multiplexing a plurality of partial videos, wherein each of the plurality of partial videos is extracted from video data corresponding to a plurality of channels currently being serviced; a zapping-channel-demultiplexing module which obtains the plurality of partial videos respectively corresponding to the plurality of channels by demultiplexing the data included in the zapping channel; and a zapping-channel output module which outputs a partial video of the plurality of partial videos obtained by the zapping-channel-demultiplexing module on a screen upon switching channels. - View Dependent Claims (14, 15)
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16. A method of outputting data of a zapping channel, comprising:
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receiving data included in a zapping channel which is obtained by multiplexing a plurality of partial videos, wherein each of the plurality of partial videos is extracted from video data corresponding to a plurality of channels currently being serviced; obtaining the plurality of partial videos respectively corresponding to the plurality of channels by demultiplexing the data included in the zapping channel; and outputting a partial video of the obtained plurality of partial videos on a screen upon switching channels. - View Dependent Claims (17, 18)
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19. A channel-switching method comprising:
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switching from a first channel to a second channel; outputting a partial video corresponding to the second channel on a screen; and outputting main data of the second channel on the screen, wherein the partial video is extracted from video data corresponding to the second channel and output on the screen before the main data of the second channel is output on the screen. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification