Optical disc system, optical disc and recording method
First Claim
1. An optical disc system for recording, on an optical disc, recording data modulated according to a predetermined encoding restrictive length, said optical disc system comprising:
- switching means for selectively outputting, at predetermined time intervals, synchronization control data which comprises of patterns having a period shorter than said encoding restrictive length and is used for synchronization during readout said data from said optical disc or said recording data; and
an optical pickup for recording output signals from said switching means on said optical disc.
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Accused Products
Abstract
An optical disc system, optical disc, and a recording method allow users to use increased data recording capacities on recording media. The optical disc system for recording data modulated according to a predetermined encoding restrictive length on an optical disc comprises switching means for selectively outputting synchronization control data composed of patterns having a period shorter than the encoding restrictive length and used for synchronization at a data readout time, or the recording data at predetermined time intervals. A recording area for the synchronization control data can be narrowed in a sector format by generating the synchronization control data and recording it on a medium as patterns having a period shorter than that of patterns modulated according to the predetermined encoding restrictive length.
28 Citations
6 Claims
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1. An optical disc system for recording, on an optical disc, recording data modulated according to a predetermined encoding restrictive length, said optical disc system comprising:
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switching means for selectively outputting, at predetermined time intervals, synchronization control data which comprises of patterns having a period shorter than said encoding restrictive length and is used for synchronization during readout said data from said optical disc or said recording data; and an optical pickup for recording output signals from said switching means on said optical disc. - View Dependent Claims (2)
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3. An optical disc wherein:
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recording data modulated at a predetermined encoding restrictive length, and synchronization control data, which comprises of patterns having a predetermined period and is used for synchronization during readout said recording data, are recorded; and said synchronization control data comprises of patterns having a period shorter than said predetermined encoding restrictive length. - View Dependent Claims (4, 5)
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6. A recording method for recording, on an optical disc, recording data which is modulated according to a predetermined encoding restrictive length, comprising the steps of:
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generating synchronization control data which comprises of patterns having a period shorter than said encoding restrictive length and is used for synchronization during readout said data from said optical disc; and outputting said recording data or said synchronization control data selectively at predetermined time intervals to an optical pickup to thereby recording output signals provided to said optical pickup on said optical disc.
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Specification