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41. 发明专利

DE69715679T2 未知
公开(公告)号：DE69715679T2
公开(公告)日：2003-01-23
申请号：DE69715679
申请日：1997-03-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAGI YUJI , NAGAI TAKAHIRO , FUKUSHIMA YOSHIHISA , OHARA SHUNJI , SATOH ISAO
IPC分类号： G11B7/00 , G11B20/10 , G11B20/12 , G11B20/18
摘要： In a recording and reproducing apparatus for a disc-shaped recording medium, and a defect substitution method for a disc-shaped recording medium (8), whether reproduction of recorded data is good is determined by sector unit and not by product code unit, defective sector discrimination is performed by sector unit, and only sectors determined defective are alternately recorded, when using a recording format in which data that is error detection and correction coded with a product code is segmented and recorded to a plurality of sectors.

42. 发明专利

DE69615065T2 未知
公开(公告)号：DE69615065T2
公开(公告)日：2002-06-06
申请号：DE69615065
申请日：1996-02-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAGAI TAKAHIRO , SATOH ISAO , TAKAGI YUJI , HISAKADO YUJI , AOKI YOSHITO , OHARA SHUNJI , ISHIDA TAKASHI
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B20/10 , G11B27/19 , G11B27/30 , G11B7/00 , G11B7/095 , G11B7/085 , G11B20/00 , G11B20/12 , G11B20/14
摘要： In a sector address region (5), address blocks (114,117) including address numbers, reproduction clock synchronization signals and ID numbers are shifted alternately to the inner periphery side or the outer periphery side with respect to a track center by substantially half a track pitch along the radius direction. As a result, the reading of addresses of a land/groove recording/reproduction type optical disk is improved while improving the tracking stability in the sector address regions. Non-pit data is located at a beginning portion of the reproduction clock synchronization signal.

43. 发明专利

IN186497B An optical disc 未知
公开(公告)号：IN186497B
公开(公告)日：2001-09-15
申请号：IN290CA1996
申请日：1996-02-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAGAI TAKAHIRO , SATOH ISAO , TAKAGI YUJI , YUJI HISAKADO , YOSHITO AOKI , SHUNJI OHARA , TAKASHI ISHIDA
IPC分类号： G11B7/005 , G11B7/007 , G11B7/09 , G11B20/10 , G11B27/19 , G11B27/30
摘要： In a sector address region (5), address blocks (114,117) including address numbers, reproduction clock synchronization signals and ID numbers are shifted alternately to the inner periphery side or the outer periphery side with respect to a track center by substantially half a track pitch along the radius direction. As a result, the reading of addresses of a land/groove recording/reproduction type optical disk is improved while improving the tracking stability in the sector address regions. Non-pit data is located at a beginning portion of the reproduction clock synchronization signal.

44. 发明专利

DE69132579T2 未知
公开(公告)号：DE69132579T2
公开(公告)日：2001-06-28
申请号：DE69132579
申请日：1991-04-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SATOH ISAO , MIZUNO SADAO , ITOH NOBORU
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/135 , G11B7/24 , G11B7/243 , G11B19/12

45. 发明专利

DE69703454T2 未知
公开(公告)号：DE69703454T2
公开(公告)日：2001-05-03
申请号：DE69703454
申请日：1997-04-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OHARA SHUNJI , ISHIDA TAKASHI , GOTO YOSHIKAZU , SATOH ISAO
IPC分类号： G11B7/0045 , G11B17/22 , G11B19/00 , G11B19/04 , G11B19/10 , G11B19/12 , G11B20/00 , G11B20/10 , G11B20/18 , G11B23/03 , G11B27/00 , G11B27/36
摘要： An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproducing ,has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not ;and when a result of the determination shows that the medium has previously been taken out from the case , for verifying correctness of information after recorded or recording after verification of correctness of information always or on condition that a predetermined condition is satisfied ,or inhibiting the recording, if the medium is a first recording/reproducing information medium that is required to use a case at recording ,and for recording normally if the medium is a second recording/reproducing information medium that is not required to use a case at recording.

46. 发明专利

DE69704111D1 未知
公开(公告)号：DE69704111D1
公开(公告)日：2001-03-29
申请号：DE69704111
申请日：1997-04-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOISHI KENJI , OHARA SHUNJI , ISHIDA TAKASHI , SATOH ISAO , TAKEMURA YOSHINARI , GUSHIMA TOYOJI , DEGUCHI HIRONORI , MITUI YOSHITAKA
IPC分类号： G11B7/00 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/09 , G11B20/12 , G11B20/14 , G11B27/19 , G11B27/24 , G11B27/30
摘要： An optical disk has a rewritable first recording area and a read-only second recording area. The first recording area includes first tracks composed of groove tracks and land tracks formed on an optical disk substrate alternately in a spiral or concentric shape. Each of the first tracks is divided into a plurality of first sectors, and each of the first sectors includes a first header region having identification data for identifying the first sector and a first data region for recording user data by forming recording marks by changing optical characteristics of a recording surface. The second data recording area includes second tracks formed with physical concave and convex shaped pit rows arranged on the optical disk substrate in a spiral or concentric shape. Each of the second tracks is divided into a plurality of second sectors, and each of the second sectors includes a second header region having identification data for identifying the second sector and a second data region having read-only data recorded as the pit rows. The first header region includes a physical concave and convex shaped first pit row. Each pit of the first pit row has a width in a radial direction of the optical disk substantially equal to a width of the groove track and is wobbled outward or inward from a center line of the groove track by about a quarter of a pitch of the groove track. The second header region includes a physical concave and convex shaped second pit row. Each pit of the second pit row has a width in the radial direction of the optical disk smaller than the width of the groove track and is formed substantially along the center line of the second track.

47. 发明专利

DE69703485T2 未知
公开(公告)号：DE69703485T2
公开(公告)日：2001-03-22
申请号：DE69703485
申请日：1997-04-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OHARA SHUNJI , ISHIDA TAKASHI , GOTO YOSHIKAZU , SATOH ISAO
IPC分类号： G11B7/0045 , G11B17/22 , G11B19/00 , G11B19/04 , G11B19/10 , G11B19/12 , G11B20/00 , G11B20/10 , G11B20/18 , G11B23/03 , G11B27/00 , G11B27/36
摘要： An information recording method has; a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproducing ,has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not ;and when a result of the determination shows that the medium has previously been taken out from the case , for verifying correctness of information after recorded or recording after verification of correctness of information always or on condition that a predetermined condition is satisfied ,or inhibiting the recording, if the medium is a first recording/reproducing information medium that is required to use a case at recording ,and for recording normally if the medium is a second recording/reproducing information medium that is not required to use a case at recording.

48. 发明专利

DE69703504T2 未知
公开(公告)号：DE69703504T2
公开(公告)日：2001-03-15
申请号：DE69703504
申请日：1997-10-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISHIDA TAKASHI , TANAKA SHIN-ICHI , MUTOH AKIRA , TAKEMURA YOSHINARI , OHARA SHUNJI , SATOH ISAO
IPC分类号： G11B7/007 , G11B7/09 , G11B27/19 , G11B27/30
摘要： In an optical disc, an ID field contains a plurality of address information, and is preliminarily recorded in convex and concave signals, and is composed of two sets offset by about 1/2 track pitch toward the internal or external track direction adjacent to the guide track, an information recording field is composed of grooves and lands oscillating at a single frequency in the radial direction, and the grooves and lands alternate in every revolution of the guide track. When w bits of information are included in one period of oscillation, an information unrecorded field between the ID field and information recording field is arranged to have a length of w/10 bits or more and/or w bits or less, and therefore, when recording continuous information data such as video data, it is possible to record continuously by generating a clock securely from the oscillating signal, and moreover, the format efficiency is improved, so that a format of a larger capacity is achieved.

49. 发明专利

DE69703503T2 未知
公开(公告)号：DE69703503T2
公开(公告)日：2001-03-15
申请号：DE69703503
申请日：1997-10-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISHIDA TAKASHI , TANAKA SHIN-ICHI , MUTOH AKIRA , TAKEMURA YOSHINARI , OHARA SHUNJI , SATOH ISAO
IPC分类号： G11B7/007 , G11B7/09 , G11B27/19 , G11B27/30
摘要： In an optical disc, an ID field contains a plurality of address information, and is preliminarily recorded in convex and concave signals, and is composed of two sets offset by about 1/2 track pitch toward the internal or external track direction adjacent to the guide track, an information recording field is composed of grooves and lands oscillating at a single frequency in the radial direction, and the grooves and lands alternate in every revolution of the guide track. When w bits of information are included in one period of oscillation, an information unrecorded field between the ID field and information recording field is arranged to have a length of w/10 bits or more and/or w bits or less, and therefore, when recording continuous information data such as video data, it is possible to record continuously by generating a clock securely from the oscillating signal, and moreover, the format efficiency is improved, so that a format of a larger capacity is achieved.

50. 发明专利

DE69703120T2 未知
公开(公告)号：DE69703120T2
公开(公告)日：2001-01-11
申请号：DE69703120
申请日：1997-10-24
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISHIDA TAKASHI , TANAKA SHIN-ICHI , MUTOH AKIRA , TAKEMURA YOSHINARI , OHARA SHUNJI , SATOH ISAO
IPC分类号： G11B7/007 , G11B7/09 , G11B27/19 , G11B27/30
摘要： In an optical disc, an ID field contains a plurality of address information, and is preliminarily recorded in convex and concave signals, and is composed of two sets offset by about 1/2 track pitch toward the internal or external track direction adjacent to the guide track, an information recording field is composed of grooves and lands oscillating at a single frequency in the radial direction, and the grooves and lands alternate in every revolution of the guide track. When w bits of information are included in one period of oscillation, an information unrecorded field between the ID field and information recording field is arranged to have a length of w/10 bits or more and/or w bits or less, and therefore, when recording continuous information data such as video data, it is possible to record continuously by generating a clock securely from the oscillating signal, and moreover, the format efficiency is improved, so that a format of a larger capacity is achieved.

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