发明名称 |
OPTICAL DISK AND METHODS FOR RECORDING AND REPRODUCING ESSENTIAL INFORMATION OF OPTICAL DISC |
摘要 |
AN OPTICAL DISC (70) AND METHODS FOR RECORDING ESSENTIAL INFORMATION IN AND REPRODUCING ESSENTIAL INFORMATION FROM AN OPTICAL DISC ARE PROVIDED. THE OPTICAL DISC INCLUDES AS A PATTERN OF CRYSTALLINE AND AMORPHOUS MARKS (30A, 30B) STORING ESSENTIAL INFORMATION. THE ESSENTIAL INFORMATION RECORDING METHOD INVOLVES: HEATING AN AMORPHOUS RECORDING LAYER ABOVE THE TEMPERATURE OF CRYSTALLIZATION (103) BY RADIATING A BEAM ACCORDING TO A PHOTOELECTRICALLY CONVERTED SIGNAL (101); AND SLOWLY COOLING THE HEATED RECORDING LAYER TO THE TEMPERATURE OF CRYSTALLIZATION OR BELOW (105) TO FORM A PATTERN OF CRYSTALLINE AND AMORPHOUS MARKS (107). THE ESSENTIAL INFORMATION REPRODUCING METHOD INVOLVES: RADIATING A BEAM ONTO A PATTERN OF CRYSTALLINE AND AMORPHOUS MARKS IN WHICH ESSENTIAL INFORMATION OF THE OPTICAL DISC IS RECORDED (111); RECEIVING THE BEAM REFLECTED FROM THE PATTERN OF CRYSTALLINE AND AMORPHOUS MARKS AND PHOTOELECTRICALLY CONVERTING THE RECEIVED BEAM TO DETECT A SIGNAL (113); FILTERING THE DETECTED SIGNAL THROUGH A HIGH-PASS FILTER (115); AND REPRODUCING THE ESSENTIAL INFORMATION OF THE OPTICAL DISC FROM THE FILTERED SIGNAL (117). ESSENTIAL INFORMATION CAN BE RECORDED IN A RECORDABLE OPTICAL DISC BY PHASE CHANGE USING AN EXISTING DISC INITIALIZING APPARATUS AFTER DEPOSITION OF A RECORDING LAYER AND BEFORE INITIALIZATION OF THE OPTICAL DISC. THEREFORE, AN ADDITIONAL RECORDING APPARATUS AND PROCESS IS NOT NECESSARY, AND NO DAMAGE CAUSED BY A HIGH ENERGY OF LASER OCCURS IN THE OPTICAL DISC.(FIG 5,8)
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申请公布号 |
MY135402(A) |
申请公布日期 |
2008.04.30 |
申请号 |
MYPI20022853 |
申请日期 |
2002.07.29 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KYUNG-GEUN LEE;IN-SIK PARK;DU-SEOP YOON |
分类号 |
G11B7/24;G11B7/00;G11B7/004;G11B7/0045;G11B7/005;G11B7/007;G11B7/242;G11B20/10;G11B23/30 |
主分类号 |
G11B7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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