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1. 发明专利

JP2006004471A Optical disk drive and its control method 审中-公开
标题翻译：光盘驱动及其控制方法
公开(公告)号：JP2006004471A
公开(公告)日：2006-01-05
申请号：JP2004176884
申请日：2004-06-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： INOUE ATSUSHI
IPC分类号： G11B7/125
摘要： PROBLEM TO BE SOLVED: To suppress a deterioration of aberration compensation as much as possible which is caused by the deflection, etc., of the direction of an optical axis of an expander lens or an angle of the optical axis when the position of the expander lens is adjusted, while not excessively increasing a driving load for the expander lens. SOLUTION: Data of an optimum arrangement position of the expander lens corresponding to every optical disk are obtained from a signal level detected from an optical head by moving the expander lens; next, for the purpose of driving the expander lens in the moving direction by which the optimum arrangement position is obtainable, the expander lens is positioned to the position shifted to the specified direction from the optimum arrangement position; and next, the expander lens is driven in the moving direction by which the optimum arrangement position is obtainable, up to the optimum arrangement position from the position shifted from the optimum arrangement position, then it is positioned to the optimum arrangement position which is the final adjustment position. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了抑制由扩展器透镜的光轴的方向的偏转等引起的尽可能多的像差补偿的劣化或者当位置上的光轴的角度，而不会使扩张器透镜的驱动负载过度增加。解决方案：从通过移动扩展器透镜从光学头检测到的信号电平获得与每个光盘相对应的扩展器透镜的最佳布置位置的数据; 接下来，为了在可获得最佳布置位置的移动方向上驱动扩展器透镜，扩展器透镜被定位到从最佳布置位置移动到指定方向的位置; 接下来，在从最佳配置位置偏移的位置到达最佳布置位置的移动方向上，可以获得最佳布置位置的扩展镜头被驱动，然后将其定位到最终布置位置调整位置。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005310292A Optical disk 审中-公开
标题翻译：光盘
公开(公告)号：JP2005310292A
公开(公告)日：2005-11-04
申请号：JP2004127561
申请日：2004-04-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMODA MIGAKU , INOUE ATSUSHI , ONO HIROAKI
IPC分类号： G11B7/24 , G11B7/0037 , G11B7/007
摘要： PROBLEM TO BE SOLVED: To provide an optical disk which has 66 to 70mm outer diameter and allows moving image information of high quality equivalent to HDTV to be recorded thereon by high-density recording of information and is proper as an information recording medium of a camcorder requiring portability. SOLUTION: The optical disk has 66 to 70mm outer diameter and has information recorded thereon with the same track pitch as a conventional rewritable Blu-ray disk having 120mm outer diameter, in the same recording conditions such as recording density as the conventional disk, so that information can be rewritten and new information can be recorded on the optical disk in a data format of the conventional Blu-ray disk. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种具有66至70mm外径的光盘，并允许通过高密度记录信息将与HDTV等效的高质量的运动图像信息记录在其上，并且作为信息记录介质是适当的的便携式摄像机。解决方案：光盘具有66至70mm外径，并且在与其相同的记录条件例如记录密度与常规盘相同的记录条件下具有与常规的具有120mm外径的可重写蓝光盘相同的轨道间距的信息，使得可以以常规蓝光盘的数据格式重写信息并将新信息记录在光盘上。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005116040A Disk device 审中-公开
标题翻译：磁盘设备
公开(公告)号：JP2005116040A
公开(公告)日：2005-04-28
申请号：JP2003347759
申请日：2003-10-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： INOUE ATSUSHI
IPC分类号： G11B19/20 , G11B17/028 , G11B17/035
摘要： PROBLEM TO BE SOLVED: To improve the reliability of of the information recording and reproducing performance of a disk device by preventing the mischucking of a disk medium to avoid the damaging of the disk medium, and by protecting an actuator component or the like in the disk device.
SOLUTION: This disk device is provided with: a spindle motor as a means for mounting and rotating a disk medium in a predetermined position; its driving means; a rotational direction detecting means for detecting the rotational direction of the spindle motor; a rotational direction switching means for switching the rotational direction of the spindle motor; a rotational speed detecting means for detecting the rotational state of the spindle motor; and a control means for controlling each means. The control means rotates the spindle motor forward and backward alternately at least once or more at the point of time of loading the disk medium.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过防止盘介质的误盘以避免盘介质的损坏并且通过保护致动器部件等来提高盘装置的信息记录和再现性能的可靠性在磁盘设备中。解决方案：该盘装置具有：主轴电动机，用于将盘介质安装并旋转到预定位置; 其驾驶手段; 旋转方向检测装置，用于检测主轴电动机的旋转方向; 旋转方向切换装置，用于切换主轴马达的旋转方向; 用于检测主轴电动机的旋转状态的转速检测装置; 以及用于控制每个装置的控制装置。控制装置在装载盘介质的时间点至少一次以上交替地向前和向后旋转主轴马达。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004158147A Optical pickup device and optical disk device using the same 审中-公开
公开(公告)号：JP2004158147A
公开(公告)日：2004-06-03
申请号：JP2002324679
申请日：2002-11-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： INOUE ATSUSHI
IPC分类号： G11B7/085
摘要： PROBLEM TO BE SOLVED: To solve such a problem that when high density is promoted and operation distance between an objective lens and a disk is made smaller, at the time of non-control when a power source of a disk device is not applied or a power source is applied but the device is in a standby state of recording operation or reproducing operation, and large impact and vibration is exerted to the disk device, the objective lens is contacted to the disk and a fault such as scratch, damage or the like easily occurs.
SOLUTION: This device has structure having a drive means for driving an objective lens of a disk device and a position control means for shifting the driving means of the objective lens. When a power source is not applied or the device is in a non-control state in which the objective lens is not controlled though a power source is applied, the objective lens is arranged to a position being separated farther from a disk position than the position at the time of a control state of the objective lens. Also, when the device is to be in a control state, the driving means of the objective lens is shifted by the position control means, and the objective lens is arranged to the prescribed position of the time of the control state.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2001344770A DISK DEVICE 失效
公开(公告)号：JP2001344770A
公开(公告)日：2001-12-14
申请号：JP2000161119
申请日：2000-05-26
申请人： HITACHI LTD
发明人： INOUE ATSUSHI , SUZUKI MOTOYUKI , NAKAO TAKESHI
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To dissolve a problem that the control state for a light spot becomes unstable by a large disturbance in a focus error signal generated when the light spot traverses tracks on a disk although an astigmatism system is suitable for miniaturization of an optical system and has a detecting system with high detecting sensitivity. SOLUTION: This disk device is provided with a light receiving means for receiving return light from the disk, a focus error signal detecting means for detecting a focus error from the light receiving state, and a tracking error signal detecting means for detecting a tracking error from the light receiving state in the same manner. Also, a phase adjusting means and an amplitude adjusting means which detect the phase difference and the amplitude ratio of the tracking error signal to the focus error signal and match the phase difference to amplitude of the tracking error signal are provided, and the tracking error signal matching the phase to amplitude is subtracted from the focus error signal by a signal adding means.

6. 发明专利

JP2001332069A DISK CAMERA APPARATUS 失效
公开(公告)号：JP2001332069A
公开(公告)日：2001-11-30
申请号：JP2000149819
申请日：2000-05-17
申请人： HITACHI LTD
发明人： OKAMOTO TOMOMI , INOUE ATSUSHI , KODAMA KAZUYUKI
IPC分类号： H04N5/225 , G11B25/04 , G11B33/08 , H04N5/85
摘要： PROBLEM TO BE SOLVED: To provide disk camera apparatus in which a disk and a drive part is hardly influenced by disturbance vibration, and the vibration generated inside a device such as a rotating part, is hardly propagated to the outer side case side. SOLUTION: The drive part to rotationally drive the disk is supported by a vibration proof member and the natural vibration frequency of he vibration system composed of the vibration proof member, the disk, and the drive part is almost set to be 100 Hz or more, or is almost set to have two times or more of the number of rotation of the disk.

7. 发明专利

JP2001023344A OPTICAL PICKUP DEVICE AND OPTICAL DISK DEVICE 失效
公开(公告)号：JP2001023344A
公开(公告)日：2001-01-26
申请号：JP19122699
申请日：1999-07-06
申请人： HITACHI LTD
发明人： INOUE ATSUSHI , KISHI YUJI , OKAMOTO TOMOMI , NAGAI KYUICHIRO
IPC分类号： G11B23/50
摘要： PROBLEM TO BE SOLVED: To prevent trouble on recording/reproducing of data caused by soiling or the like stuck on the surface of a disk by driving a cleaning means provided at actuator parts in the radial direction of a disk medium with an optical pickup device driving means. SOLUTION: An optical pickup device is provided with an objective lens 12, an actuator 102 for driving the objective lens 12 or the like in an optical pickup cabinet 101. Further a cleaning member 1 for removing soiling, stuck foreign matter or the like on the surface of the disk 5 is provided near the objective lens 12 provided on the actuator 102. The optical pickup cabinet 101 is reciprocated between an inner periphery and an outer periphery in the radial direction of the disk 5 along shafts 21, 22 by a driving motor 20 via a driving force transmission means 13. When cleaning, the cleaning member 1 is brought into contact with the surface of the disk 5 by the actuator 102 to clean the surface of the disk 5.

8. 发明专利

JP2000011577A DISK CARTRIDGE AND DISK DEVICE USING THE SAME 失效
公开(公告)号：JP2000011577A
公开(公告)日：2000-01-14
申请号：JP18188898
申请日：1998-06-29
申请人： HITACHI LTD
发明人： OKAMOTO TOMOMI , NAGAI KYUICHIRO , ONO HIROAKI , INOUE ATSUSHI , TANEMURA TOSHIO
IPC分类号： G11B23/03 , G11B19/04 , G11B19/12 , G11B23/28
摘要： PROBLEM TO BE SOLVED: To allocate information to an information holding part by considering the priority of the information arranged in a disk cartridge and to dispose the necessary information holding part in a prescribed place by contriving the same. SOLUTION: At least two kinds of information held by a disk cartridge 1 are variable, bits of the variable information are 1 bit for A and B, and in the case of an information group where low-order information is valid when high-order information is A and the low-order information is invalid when the high-order information is B, information held by a variable information holding part is changed in three ways, and the groups of high and low order information are held in variable information holding parts 13a and 13b.

9. 发明专利

JP2000011576A DISK CARTRIDGE AND DISK DEVICE USING THE SAME 失效
公开(公告)号：JP2000011576A
公开(公告)日：2000-01-14
申请号：JP17691098
申请日：1998-06-24
申请人： HITACHI LTD
发明人： OKAMOTO TOMOMI , NAGAI KYUICHIRO , ONO HIROAKI , INOUE ATSUSHI
IPC分类号： G11B23/03 , G11B19/04 , G11B23/28
摘要： PROBLEM TO BE SOLVED: To improve the efficiency in the arrangement of information holding parts by changing the holding information in such a manner that at least two of the provided informations regarding a recording medium or a disk cartridge are variable and a part of them is made movable, and providing the overlapped area in the movable range of the 1st information holding part and the movable range of the 2nd information holding part. SOLUTION: The information of validity/invalidity for the disk surface is assigned to the 1st information holding parts 11a, 11b, the historical information of the disk taking out is assigned to the 2nd information holding parts 12a, 12b, the information of need/no need of the verifying operation is assigned to the 3rd information holding parts 13a, 13b, and the information of permission/unpermission of the recording is assigned to the 4th information holding parts 14a, 14b. The 1st information holding parts 11a, 11b are expressed by providing or not providing holes at the prescribed positions. The 2nd information holding parts 12a, 12b are irreversible, and when a member 17 for opening/closing a loading/unloading port is housed in a disk cartridge case 2, protrusions are arranged at the places coincident with those of the 2nd information holding parts 12a, 12b so as capable of recognizing by providing holes at the case position.

10. 发明专利

JPH11144356A DISK CARTRIDGE AND DISK DEVICE 失效
公开(公告)号：JPH11144356A
公开(公告)日：1999-05-28
申请号：JP30682297
申请日：1997-11-10
申请人： HITACHI LTD
发明人： OKAMOTO TOMOKI , INOUE ATSUSHI
IPC分类号： G11B23/03 , G11B17/04
摘要： PROBLEM TO BE SOLVED: To attain the insertion and ejection of a disk cartridge without using the energizing means such as a spring, etc., when the disk cartridge is loaded, by making a shutter move in the direction to open an opening part in such a manner that a shutter moving means is linearly moved while bringing into contact with the shutter. SOLUTION: A shutter opening/closing mechanism 6 is provided with a guide groove 5 for controlling a shutter opening/closing pin 4 or the moving direction of the shutter opening/closing pin. The shutter opening/closing pin 4 is shaped so that the tip is columnar and also a chamfer is provided on a part thereof, while a contact part 3 to be in contact with the shutter opening/closing pin, 4 is provided on the shutter 2. When the disk cartridge 1 is inserted to the disk device, the contact part 3 is brought into contact with this shutter opening/ closing pin 4, and when the disk cartridge 1 is furthermore inserted, the shutter opening/closing pin 4 and the contact part 3 are connected and not separated during the loading operation of the disk cartridge 1.

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