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公开(公告)号：CA2328026A1
公开(公告)日：2001-06-10
申请号：CA2328026
申请日：2000-12-08
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , SHISHIDO YUKIO
Abstract: The objective of the present invention is to facilitate to identify whether or not the optical disc is a optical disc of which recording capacity is enlarged. A synchronization pattern of ATIP information embedded into guide grooves irradiated with a light spot is made to be different between a high density optical disc and a standard density optical disc of which recording capacity is not enlarged. Specifically, while the synchronization pattern of the standard density optical disc is made into "3T+1T+1T+3T" (where "T" represents a minimum channel bit of a signal obtained by reading a positional information), the synchronization pattern of the high density optical disc is made into "3T+3T+1T+1T" for example. By reading the ATIP information and recognizing the synchronization pattern thereof, it can be easily and quickly identified whether the optical disc has a standard density or a high density.
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公开(公告)号：ID27335A
公开(公告)日：2001-03-29
申请号：ID20000844
申请日：2000-09-28
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO , KAWASHIMA TETSUJI , SAKO YOICHIRO , INOKUCHI TATSUYA , TOYAMA KATSUMI , TSUKATANI SHIGEKI
IPC: G11B27/32 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B19/02 , G11B19/06 , G11B19/12 , G11B20/10 , G11B20/12 , G11B27/034 , G11B27/19 , G11B27/24 , G11B27/30 , G11B27/34
Abstract: An absolute time area is expanded by using an area of relatively low importance such as zero-data area and/or relative time area or the like in a Q channel in a sub-code in a recording format of a CD. Thus, an absolute time expression which can cope with a disc having a large capacity or the like can be performed. An absolute time expression is performed in a manner such that a digit of "100 minutes" is BCD expressed by using lower 4 bits in the 8-bit zero-data area ZERO. Thus, the absolute time of up to 999min59sec74frame can be expressed. A digit of "hour" is also expressed by using lower 4 bits in the zero-data area. For example, identification information showing that a disc is a high density optical disc of a large capacity is expressed by using upper 4 bits in the zero-data area ZERO.
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公开(公告)号：JP2008251161A
公开(公告)日：2008-10-16
申请号：JP2008150893
申请日：2008-06-09
Inventor： KAWASHIMA TETSUJI , SHISHIDO YUKIO , KAWAKAMI HIROO
IPC: G11B20/12 , G11B7/0045 , G11B7/007 , G11B20/10 , G11B27/00
Abstract: PROBLEM TO BE SOLVED: To improve interchangeability and operability in using a recordable multi-layer disk. SOLUTION: A region for recording interlayer folding back position information is set on a recording medium (e.g., End sector number in Layer 0 or a session item type 3). In response to a fact that recording on a certain recording layer reaches a maximum recording range or that data recording advances from a certain recording layer to a next recording layer, interlayer folding back position information is recorded in the recording medium. When an advancement of the data recording to another recording layer is performed at a stage prior to disk closing or sector closing, or when it is predicted that such an advancement of the data recording occurs afterwards, the interlayer folding back position information is recorded. Also where the disk is of the type for which multi-session recording is performed, the interlayer return position information is recorded with regard to a session in which folding back is performed. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提高使用可记录多层盘的互换性和可操作性。 解决方案：用于记录层间折叠位置信息的区域设置在记录介质上（例如，层0中的结束扇区号或会话项类型3）。 响应于在某个记录层上的记录达到最大记录范围或数据记录从某个记录层前进到下一个记录层的事实，层间折叠位置信息被记录在记录介质中。 当在盘关闭或扇区关闭之前的阶段执行数据记录到另一个记录层的进行时，或者当预测数据记录的这种进行发生之后，记录层间折叠位置信息。 此外，在盘被执行多次会话记录的类型中，对于执行折页的会话记录了层间返回位置信息。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2002311976A
公开(公告)日：2002-10-25
申请号：JP2001117106
申请日：2001-04-16
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , SHISHIDO YUKIO , YOKU KOJI
Abstract: PROBLEM TO BE SOLVED: To easily carry out processing based on detected additional information embedded in contents data while reducing the load of hardware. SOLUTION: The additional information embedded in the contents is detected from data near the head portion of a prescribed amount of contents data. The contents of the detected additional information are judged, and a prescribed amount of the contents data is recorded on a prescribed medium when judged as recordable contents data. Recording is not carried out on the medium when judged as contents data whose recording is prohibited.
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公开(公告)号：JP2002032922A
公开(公告)日：2002-01-31
申请号：JP2001132156
申请日：2001-04-27
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , SHISHIDO YUKIO , TSUKADA HIROSHI , MIYAKE KUNIHIKO
Abstract: PROBLEM TO BE SOLVED: To actualize speedy access operation by easily calculating the movement quantity of an optical head even whichever storage area the optical head is made to access. SOLUTION: Physical addresses on a disk surface which are represented in 1st format as time-axis information and 2nd format as a binary format are so set as to monotonously increase from the inner peripheral side to the outer peripheral side of the disk while made to correspond to each other one to one between the 1st and 2nd formats over the entire area of the recording area.
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Patent Agency Ranking
公开(公告)号：JP2001236739A
公开(公告)日：2001-08-31
申请号：JP2000046765
申请日：2000-02-18
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO , TSUKATANI SHIGEKI , UDAGAWA OSAMU
IPC: G11B7/0055 , G11B7/007 , G11B20/12 , G11B27/32
Abstract: PROBLEM TO BE SOLVED: To speed up a disk format. SOLUTION: An irreducible minimum format is performed by performing format processing only for a local area being a partial area for a whole recordable area of a re-writable disk and excepting the areas where a read-in area and a read-out area are formed. Thereafter, a format range is enlarged as required.
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公开(公告)号：JP2001202680A
公开(公告)日：2001-07-27
申请号：JP2000014254
申请日：2000-01-20
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO
Abstract: PROBLEM TO BE SOLVED: To easily discriminate whether the optical disk has the increased recording density. SOLUTION: The level 'Pmax' of read-out signals SRF-N, SRF-H obtained by reproducing the optical disk having standard density or high density is the signal level based on the reflected light at the time when the position having no pit is irradiated by the light beam, and the 'P0' is the level when there is no reflected light. The bottom peak level of the signal SRF-N at the standard density becomes 'P(min-N)', and the signal SRF-H at the high density becomes 'P(min-H)' which is the level higher than 'P(min-N)'. The level difference between 'Pmax' and 'Pmin' is expressed as 'L0'. 'Pmax-P(min-N)' is expressed as 'L1', then the modulation degree 'L1/L0' at the standard density is obtained. 'Pmax- P(min-H)' is expressed as 'L2', then the modulation degree 'L2/L0' at the high density is obtained. By making a reference level signal Lth to be '(L1/L0)>Lth>(L2/L0)' and comparing it with the modulation degree, it is discriminated whether the optical disk is provided with the standard density or the high density.
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公开(公告)号：JP2001167561A
公开(公告)日：2001-06-22
申请号：JP2000299129
申请日：2000-09-29
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO , KAWASHIMA TETSUJI , SAKO YOICHIRO , INOGUCHI TATSUYA , TOYAMA KATSUMI , TSUKATANI SHIGEKI
Abstract: PROBLEM TO BE SOLVED: To express the absolute time that can correspond to a large-capacity optical disk, etc., and to easily discriminate the type of the optical disk. SOLUTION: An absolute time area is extended by means of a comparatively unimportant area such as a zero data area and/or a relative time area included in a Q channel contained in a subcode of a CD recording format. Concretely an absolute time is expressed by performing the BCD expression of the digits of '100 minutes' by means of lower 4 bits included in an 8-bit zero data area ZERO. Thus, the absolute times covering up to the largest 999 minutes 59 seconds 74 frame can be expressed. Meanwhile, the identification information showing an optical disk of large capacity and high density, for example, can be expressed by means of higher 4 bits included in the area ZERO.
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公开(公告)号：JP2000067511A
公开(公告)日：2000-03-03
申请号：JP23879798
申请日：1998-08-25
Applicant: SONY CORP
Inventor： KAWASHIMA TETSUJI , SHISHIDO YUKIO
Abstract: PROBLEM TO BE SOLVED: To efficiently utilize the max. data transfer rate. SOLUTION: This reproducing device has a disk rotating means which is capable of rotating a loaded disk at a specified angular speed, a capacity detecting means which detects the logic block address of the data recorded in the outermost periphery of the data area recorded with the data as the data capacity recorded on the disk from a control information area of the disk and a control means which executes the control of the disk rotating means in accordance with the data capacity detected by the capacity detecting means. The device sets the disk rotating speed according to the data capacity (S007, S009, S010, S014, S016), S017).
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公开(公告)号：JPH11143643A
公开(公告)日：1999-05-28
申请号：JP30403497
申请日：1997-11-06
Applicant: SONY CORP
Inventor： SHISHIDO YUKIO , KOBAYASHI SHUICHI
Abstract: PROBLEM TO BE SOLVED: To execute high speed conversion in an access time even at the time of two-point reading or random reading by setting a data storing operation system to a cache memory based on the request forms of a data request. SOLUTION: The reproduction control means of a reproducing means judges the request forms of the supplied data request and sets the data storing operation system (buffering method) to the cache memory based on the request form. That is, when it is judged that the request form is not the sequential one, plural memory areas are division-set by a cache memory means and a data storing operation is executed against a certain memory area. Data in the cache memory till this time is secured at every area without perfectly executing purging even unless reading is not the continuous data one. In the meantime, when the data request is judged to be the sequential one, the data storing operation is executed with the cache memory means as one ring memory form.
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