VIDEO SIGNAL RECORDING AND REPRODUCING APPARATUS
First Claim
1. A video signal recording and reproducing apparatus comprising:
- a plurality of tuners for receiving broadcast video signals from a plurality of channels;
a recording section for recording the received video signals from the plurality of channels on a hard disk via a magnetic head as first digital compressed video signals for the respective channels;
a reading-out section for, prior to the recording of a first digital compressed video signal for a predetermined channel, reading out a second digital compressed video signal recorded in the hard disk for the channel which is the same as said predetermined channel via the magnetic head which is the same as said magnetic head;
an output section for reproducing the read second digital compressed video signal and outputting a reproduced video signal; and
a control section for controlling the recording of the first digital compressed video signal and the reading-out of the second digital compressed video signal in order to make a video of the reproduced video signal catch up with a video of the first digital compressed video signal from the predetermined channel being currently recorded.
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Abstract
The video signal recording and reproducing apparatus of the invention includes: a receiving section for receiving a television signal; an image compression section for compressing an amount of information per unit time of the received continuous video signal; a writing section for intermittently writing a compressed video signal, obtained as an output of the image compression section, onto a hard disk apparatus via a magnetic head; a reading section for intermittently reading out the written compressed video signal from the hard disk apparatus via the magnetic head; a decoding section for restoring the read compressed video signal into an original video signal; a display section for displaying the restored video signal; and a control section for controlling the writing section and the reading section such that writing the video signal onto the hard disk apparatus and reading an arbitrary video signal, which was previously written onto the hard disk apparatus, from the hard disk apparatus are performed apparently simultaneously and continuously.
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Citations
3 Claims
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1. A video signal recording and reproducing apparatus comprising:
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a plurality of tuners for receiving broadcast video signals from a plurality of channels;
a recording section for recording the received video signals from the plurality of channels on a hard disk via a magnetic head as first digital compressed video signals for the respective channels;
a reading-out section for, prior to the recording of a first digital compressed video signal for a predetermined channel, reading out a second digital compressed video signal recorded in the hard disk for the channel which is the same as said predetermined channel via the magnetic head which is the same as said magnetic head;
an output section for reproducing the read second digital compressed video signal and outputting a reproduced video signal; and
a control section for controlling the recording of the first digital compressed video signal and the reading-out of the second digital compressed video signal in order to make a video of the reproduced video signal catch up with a video of the first digital compressed video signal from the predetermined channel being currently recorded. - View Dependent Claims (2)
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3. A video signal display apparatus comprising:
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a plurality of tuners for receiving broadcast video signals from a plurality of channels;
a recording section for recording the received video signals from the plurality of channels on a hard disk via a magnetic head as first digital compressed video signals for the respective channels;
a reading-out section for, prior to the recording of a first digital compressed video signal for a predetermined channel, reading out a second digital compressed video signal recorded in the hard disk for the channel which is the same as said predetermined channel via the magnetic head which is the same as said magnetic head;
an output section for reproducing the read second digital compressed video signal and outputting a reproduced video signal;
a display section for displaying the reproduced video signal; and
a control section for controlling the recording of the first digital compressed video signal and the reading-out of the second digital compressed video signal in order to make a video of the reproduced video signal catch up with a video of the first digital compressed video signal from the predetermined channel being currently recorded.
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Specification