Dynamic information storage or retrieval – Specific detail of information handling portion of system – Radiation beam modification of or by storage medium
Patent
1997-09-16
2000-05-30
Dinh, Tan
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Radiation beam modification of or by storage medium
369 48, 3692753, 704229, 704212, G11B 2010, G11B 2012
Patent
active
060698659
ABSTRACT:
Method and apparatus for encoding sub information is provided for synchronizing the main information of a digital audio disk with the sub information thereof. A sub signal encoding unit is composed as part of a unit for recording a signal of a digital audio disk. The sub signal encoding unit is inputted with a main signal having a format of the digital audio disk and a sub signal for improving the sound quality of the audio signal. A data cutting section is provided with the main signal and takes out part of the main signal as a synchronous signal. A Q channel generating section operates to replace the format of the synchronous signal with the Q channel data format so that the synchronous signal may be recorded in the Q channel of the subcode of the digital audio disk. A subcode encoding section is provided with the sub signal and the Q channel data and encodes the sub signal according to the format of the subcode.
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Chu Kim-Kwok
Dinh Tan
Oh Seong-Kun
Sony Corporation
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