Title:
安全なコンパクト・ディスク及びプレイヤ
Document Type and Number:
Japanese Patent JP3996350
Kind Code:
B2
Abstract:
A method for recording data on an optical medium is disclosed. In one embodiment, the method includes receiving a first plurality of frames of data at a Cross Interleave Reed-Solomon Code (CIRC) encoder, encoding the first plurality of frames of data by the CIRC encoder to generate a second plurality of frames of data, generating a set of data to form a Q sub-channel, altering selected data bits in the Q sub-channel to form an encoded Q sub-channel, forming a plurality of control bytes including the encoded Q sub-channel, adding one of the control bytes to each one of the second plurality of frames of data to generate a third plurality of frames of data, encoding selected portions of the third plurality of frames of data by an EFM encoder to generate a plurality of channel frames, and recording the channel frames on the optical medium. This method allows CDs to be recorded that cannot be played by conventional CD players. A corresponding optical disk playback system and method for receiving, decoding and presenting data are also disclosed.
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Inventors:
Daniel Dee Downing
Application Number:
JP2000617448A
Publication Date:
October 24, 2007
Filing Date:
May 10, 2000
Export Citation:
Assignee:
Macrovision Corporation
International Classes:
G11B20/10; G11B20/00; G11B20/12; G11B20/18; G11B27/034; G11B27/30
Domestic Patent References:
| JP8129828A | ||||
| JP8153331A | ||||
| JP10106145A | ||||
| JP10233057A | ||||
| JP1196676A |
Attorney, Agent or Firm:
Tadahiko Ito