Dynamic information storage or retrieval – Storage medium structure – Optical track structure
Reissue Patent
2007-09-11
2007-09-11
Dinh, Tan (Department: 2651)
Dynamic information storage or retrieval
Storage medium structure
Optical track structure
C369S059250, C341S059000, C341S094000, C375S293000
Reissue Patent
active
10137488
ABSTRACT:
In carrying out PWM-recording on optical disks, RESYNC BYTES including a bit compensation part, RESYNC detection part, and bit synchronization part are periodically inserted in the recorded data code stream. After encoding and at the time of decoding, RESYNC BYTES are detected by detection of the RESYNC detection part. The decoder is initialized by detecting the position of the bit synchronization part, and decoding is performed satisfactorily free from error. With this configuration, even for synchronization bytes having a comparatively long portion of consecutive code values, bit resynchronization is enabled free from mis-detection caused by peak shift. Even with the recording and reproducing characteristics with an un-symmetrical unerased area of the mark and space parts, the RESYNC detection part is fixed to either mark or space and RESYNC BYTES with little influence on an unerased area can be realized.
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Nakajima Takeshi
Shimada Toshiyuki
Dinh Tan
Matsushita Electric - Industrial Co., Ltd.
Smith , Gambrell & Russell, LLP
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