Near video-on-demand signal receiver
First Claim
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1. A method of receiving program information supplied on plural time-offset channels in a near video-on-demand system, comprising the steps of:
- storing a segment of the program information supplied on one of said channels in a buffer memory of a receiver in the near video-on-demand system;
selecting a particular channel;
receiving the program information supplied on said particular channel; and
reading said stored segment of program information while buffering the program information supplied on said particular channel in response to the selection of said particular channel,wherein reading of said stored segment is paused in response to a pause command while the program information continues buffering, and whereafter reading of said stored segment is resumed in response to a resume command,wherein a second channel, time-offset from said particular channel, is selected to supply the program information if a time difference between the pause command and the resume command is greater than said time-offset, andwherein when display of the program information is resumed after the resume command, an overlap portion is provided.
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Abstract
A video signal receiver receives a plurality of video channels simultaneously carrying, offset by a transmission interval, a single video program, selects one channel from which to obtain the program for display to a user, and achieves a pause function in the display of the transmitted video program by temporarily storing a segment of the video program equal to the length of the transmission interval and obtaining the remainder of the program at a later time from the same or another channel.
50 Citations
27 Claims
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1. A method of receiving program information supplied on plural time-offset channels in a near video-on-demand system, comprising the steps of:
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storing a segment of the program information supplied on one of said channels in a buffer memory of a receiver in the near video-on-demand system; selecting a particular channel; receiving the program information supplied on said particular channel; and reading said stored segment of program information while buffering the program information supplied on said particular channel in response to the selection of said particular channel, wherein reading of said stored segment is paused in response to a pause command while the program information continues buffering, and whereafter reading of said stored segment is resumed in response to a resume command, wherein a second channel, time-offset from said particular channel, is selected to supply the program information if a time difference between the pause command and the resume command is greater than said time-offset, and wherein when display of the program information is resumed after the resume command, an overlap portion is provided. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for receiving program information supplied on plural time-offset channels in a near video-on-demand system, comprising:
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a storage device for storing a segment of the program information supplied on one of said channels; a channel selector for selecting a particular channel and for receiving the program information supplied on said particular channel; a buffer for buffering the program information received on said particular channel in the apparatus; and a read out device for reading out said stored segment of program information while said buffer is buffering said received program information in response to the selection of said particular channel, wherein reading out of said stored segment is paused in response to a pause command while the program information continues buffering, and whereafter reading out of said stored segment is resumed in response to a resume command, wherein a second channel, time-offset from said particular channel, is selected to supply the program information if a time difference between the pause command and the resume command is greater than said time-offset, and wherein when display of the program information is resumed after the resume command, an over lap portion is provided. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of receiving program information in a near video-on-demand system, comprising the steps of:
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storing a segment of the received program information in a buffer memory of a receiver in the near video-on-demand system; and reading said stored segment of program information while buffering the program information which continues to be received, wherein reading of said stored segment is paused in response to a pause command while the program information continues buffering, and whereafter reading of said stored segment is resumed in response to a resume command, wherein a second channel, time-offset from said particular channel, is selected to supply the program information if a time difference between the pause command and the resume command is greater than said time-offset, and wherein when display of the program information is resumed after the resume command, an overlap portion is provided. - View Dependent Claims (21)
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22. Apparatus for receiving program information in a near video-on-demand system, comprising:
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a storage device for storing a segment of the received program information; a buffer for buffering the program information which continues to be received in the apparatus; and a read out device for reading out said stored segment of program information while said buffer is buffering said received program information, wherein reading out of said stored segment is paused in response to a pause command while the program information continues buffering, and whereafter reading out of said stored segment is resumed in response to a resume command, wherein a second channel, time-offset from said particular channel, is selected to supply the program information if a time difference between the pause command and the resume command is greater than said time-offset, and wherein when display of the program information is resumed after the resume command, an overlap portion is provided. - View Dependent Claims (23, 24, 25, 26)
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27. A method of supplying program information in a near video-on-demand system, comprising the steps of:
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providing the same program information on time offset channels, said time offset being the same from channel to channel so that the start time of said program information on one channel differs from the start time of said program information on another channel by said time offset; and transmitting said program information simultaneously on a plurality of said time offset channels to a receiving station so as to permit the recording of a segment of the transmitted program information in a buffer of the receiving station commencing from said start time and lasting no more than a predetermined duration that is less than the duration of said program information, and reading the recorded segment of program information while buffering the program information that is transmitted on the same channel as the segment of program information or on any other of said time offset channels, wherein reading of said stored segment is paused in response to a pause command while the program information continues buffering, and whereafter reading of said stored segment is resumed in response to a resume command, wherein a second channel, time-offset from said particular channel, is selected to supply the program information if a time difference between the pause command and the resume command is greater than said time-offset, and wherein when display of the program information is resumed after the resume command, an overlap portion is provided.
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Specification