Stream generation apparatus and digest mark data generation apparatus
First Claim
1. A stream generation apparatus, comprising:
- an encoding section operable to encode video data composing a program;
a clock generating section operable to generate a clock signal at a first time interval;
a timing signal generating section operable to generate a timing signal from the clock signal received from the clock generating section for output at a second time interval; and
a reference mark adding section operable to add, in accordance with the timing signal generated by the timing signal generating section, reference mark data composed of a reference mark for use in generation of a program digest to the video data encoded by the encoding section.
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Abstract
In a digest mark data generation apparatus, program data is recorded in a recording medium. Video data composing the program data has reference marks provided at predetermined time intervals. The digest mark data generation apparatus further includes an input section that generates, in response to a user'"'"'s operation, timing designation data indicative of either a time of starting a program digest or a time of ending the program digest; and a mark data generating section that generates digest mark data by extracting a reference mark provided to the video data recorded on the recording medium in accordance with the timing designation data received from the input section. With this, it is possible to provide a digest mark data generation apparatus for generating digest mark data that allows a sharing of a program digest.
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Citations
9 Claims
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1. A stream generation apparatus, comprising:
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an encoding section operable to encode video data composing a program;
a clock generating section operable to generate a clock signal at a first time interval;
a timing signal generating section operable to generate a timing signal from the clock signal received from the clock generating section for output at a second time interval; and
a reference mark adding section operable to add, in accordance with the timing signal generated by the timing signal generating section, reference mark data composed of a reference mark for use in generation of a program digest to the video data encoded by the encoding section. - View Dependent Claims (2)
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3. A digest mark data generation apparatus, comprising
a recording medium that records program data representing a predetermined program, the program data including video data and audio data, and the video data added with reference mark data composed of one or more reference marks added at a predetermined time interval; -
an input section operable to generate, in response to an operation by a user, timing designation data indicative of a start or an end of a program digest;
a mark data generating section operable to select, in accordance with timing designation data generated by the input section, a reference mark from the reference marks added to the video data recorded on the recording medium, and to generate digest mark data including the selected reference mark; and
a recording section operable to record the digest mark data generated by the mark data generating section on the recording medium. - View Dependent Claims (4, 5, 6, 7)
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8. A method of generating a stream, comprising the steps of:
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encoding video data constructing a program;
generating a clock signal at a first time interval;
generating a timing signal at a second time interval from the clock signal generated in the clock signal generating step; and
adding reference mark data composed of a reference mark for use in generation of a program digest to the video data encoded by the encoding step in accordance with the timing signal generated in the timing signal generating step.
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9. A method of generating digest mark data, comprising the steps of:
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reading program data recorded on a recording medium, the program data including the video data and audio data, and the video data added with reference mark data composed of one or more reference marks added at a predetermined time interval; and
receiving timing designation data indicative of a start or an end of a program digest, selecting a reference mark from the reference marks added to the video data read in the reading step in accordance with the received timing designation data, and generating the digest mark data that includes the selected reference mark.
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Specification