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1. 发明授权

US06879554B2 Disc player capable of reproducing a partially recorded disc 失效
标题翻译：光盘播放机能够再现部分记录的光盘
公开(公告)号：US06879554B2
公开(公告)日：2005-04-12
申请号：US09749631
申请日：2000-12-28
申请人： Takao Shimamura , Kenichi Takahashi , Shinya Honjou , Takashi Sasaki , Koichi Kikuchi , Yoshihiro Hashizuka , Hideaki Yoshimura , Takashi Suzuki
发明人： Takao Shimamura , Kenichi Takahashi , Shinya Honjou , Takashi Sasaki , Koichi Kikuchi , Yoshihiro Hashizuka , Hideaki Yoshimura , Takashi Suzuki
IPC分类号： G11B7/0037 , G11B7/005 , G11B7/007 , G11B7/085 , G11B7/09 , G11B19/12 , G11B20/12 , G11B27/10 , G11B27/22 , G11B27/32 , G11B27/34 , G11B27/36 , G11B7/00
CPC分类号： G11B19/12 , G11B7/0037 , G11B7/005 , G11B7/007 , G11B7/08505 , G11B7/0945 , G11B20/1252 , G11B27/105 , G11B27/22 , G11B27/329 , G11B27/34 , G11B27/36 , G11B2220/2545
摘要： A method for reproducing information recorded on a disc is provided. In the method, a reproduction signal is irradiated towards the disc to produce a corresponding read signal. Also, the reproduction signal is positioned at a first position within a non-program area of the disc and is attempted to be focused on the disc. If the reproduction signal is focused on the disc, the method determines if the read signal has a valid signal level. If the read signal does not have the valid signal level when the reproduction signal is positioned at the first position, the reproduction signal is moved to a second position within a program area of the disc while the reproduction signal remains focused on the disc. Then, the method determines if the read signal has the valid signal level when the reproduction signal is positioned at the second position. Also, a disc player that employs the method and a software program that instruct a controller to perform operations in accordance with the method are also provided.
摘要翻译：提供了一种用于再现记录在盘上的信息的方法。在该方法中，将再现信号照射到盘以产生相应的读取信号。此外，再现信号位于盘的非程序区域内的第一位置，并且尝试将其聚焦在盘上。如果再现信号被聚焦在盘上，则该方法确定读取信号是否具有有效的信号电平。如果读取信号在再现信号位于第一位置时没有有效信号电平，则再现信号被移动到盘的程序区域内的第二位置，同时再现信号保持聚焦在盘上。然后，当再现信号位于第二位置时，该方法确定读信号是否具有有效信号电平。此外，还提供了采用该方法的光盘播放器和指示控制器根据该方法执行操作的软件程序。

2. 发明授权

US06545956B2 Disc player and focus search control method 失效
标题翻译：光盘播放器和对焦搜索控制方法
公开(公告)号：US06545956B2
公开(公告)日：2003-04-08
申请号：US09811624
申请日：2001-03-20
申请人： Takao Shimamura , Yoshihiro Hashizuka
发明人： Takao Shimamura , Yoshihiro Hashizuka
IPC分类号： G11B700
CPC分类号： G11B7/08511 , G11B2007/0006
摘要： A disc player can be used in common for discs having different focus positions of an object lens with respect to a recording surface. The disc player carries out focus servo control with respect to the discs and reads out recorded information. The disc player comprises a judging device, a waveform setting device and a focus searching device. The judging device judges a type of disc set at the disc player. The waveform setting device selectively sets a predetermined waveform information in accordance with results of judgement by the judging device, from a plurality of waveform information which are held in advance for use in focus searching for the types of discs. The focus searching device generates a focus search signal based on the waveform information set by the waveform setting device, and carries out focus searching, at a time of start-up of the disc player, before the focus servo control is carried out.
摘要翻译：对于相对于记录表面的物镜的焦点位置不同的盘，可以使用光盘播放器。光盘播放机对光盘执行聚焦伺服控制，并读出记录的信息。光盘播放器包括判断设备，波形设置设备和焦点搜索设备。判断装置判断在盘播放机上设置的盘的类型。波形设定装置根据预先保存的多个波形信息，根据判断装置的判断结果，有选择地设定规定的波形信息，以便对于各种类型的光盘进行聚焦检索。焦点搜索装置基于由波形设置装置设置的波形信息生成焦点搜索信号，并且在进行聚焦伺服控制之前，在光盘播放机启动时进行聚焦搜索。

3. 发明授权

US06646962B2 Apparatus for detecting dropout, an error signal extracting unit, and unit for identifying type of dropout in an optical pickup 失效
标题翻译：用于检测压差的装置，误差信号提取单元和用于识别光学拾取器中的压差类型的单元
公开(公告)号：US06646962B2
公开(公告)日：2003-11-11
申请号：US09793729
申请日：2001-02-27
申请人： Takashi Sasaki , Takashi Suzuki , Takao Shimamura , Shinya Honjou , Kenichi Takahashi , Yoshihiro Hashizuka , Koichi Kikuchi , Hideaki Yoshimura
发明人： Takashi Sasaki , Takashi Suzuki , Takao Shimamura , Shinya Honjou , Kenichi Takahashi , Yoshihiro Hashizuka , Koichi Kikuchi , Hideaki Yoshimura
IPC分类号： G11B700
CPC分类号： G11B7/0948 , G11B7/0941
摘要： A servo control apparatus of an optical pickup is provided for reading recorded information from a recording medium and generates a read signal. The apparatus includes an error signal extracting part for extracting an error signal which indicates a deviation amount of a reading position from a target reading position of the optical pickup; a drive part for driving the optical pickup to change the reading position; an equalizer for equalizing the error signal and supplying a drive signal which indicates a driving amount of the drive part; a detecting part for detecting a dropout portion in the read signal; an identifying part for identifying a form of the dropout portion detected in the detecting part; and a controller. The controller performs control to change a gain of the equalizer in accordance with the identified form of the dropout portion.
摘要翻译：提供了一种用于从记录介质读取记录信息并产生读取信号的光学拾取器的伺服控制装置。该装置包括误差信号提取部分，用于从光学拾取器的目标读取位置提取指示读取位置的偏差量的误差信号; 用于驱动光学拾取器以改变读取位置的驱动部件; 均衡器，用于均衡误差信号并提供指示驱动部分的驱动量的驱动信号; 用于检测读取信号中的压差部分的检测部分; 用于识别在所述检测部分中检测到的所述丢失部分的形式的识别部分; 和控制器。控制器执行控制以根据所识别的出口部分的形式改变均衡器的增益。

4. 发明授权

US06600705B2 Method of and apparatus for setting servo adjustment value, reproducing information and recording information under servo control using servo adjustment value 失效
标题翻译：用于设定伺服调整值的方法和装置，使用伺服调整值在伺服控制下再现信息和记录信息
公开(公告)号：US06600705B2
公开(公告)日：2003-07-29
申请号：US09745258
申请日：2000-12-20
申请人： Takashi Suzuki , Takashi Sasaki , Hideaki Yoshimura , Koichi Kikuchi , Yoshihiro Hashizuka , Shinya Honjou , Kenichi Takahashi , Takao Shimamura
发明人： Takashi Suzuki , Takashi Sasaki , Hideaki Yoshimura , Koichi Kikuchi , Yoshihiro Hashizuka , Shinya Honjou , Kenichi Takahashi , Takao Shimamura
IPC分类号： G11B700
CPC分类号： G11B7/0945 , G11B7/0941 , G11B2007/0013
摘要： A servo adjustment apparatus for setting an adjustment value for servo control of at least one of optical recording of information on information recording surfaces and optical reproduction of information recorded on the information recording surfaces, is provided. A setting device sets an adjustment value corresponding to one of the information recording surfaces. Another setting device sets another adjustment value corresponding to another one of the surfaces other than the one of information recording surfaces. Then a calculation device calculates a relational value indicating a relationship between the adjustment value and another adjustment value. A storage device stores calculated relational value. A resetting device resets the adjustment value using another adjustment value set previously and the relational value when the adjustment value is reset, and resets another adjustment value using the adjustment value set previously and the relational value when another adjustment value is reset.
摘要翻译：提供一种伺服调整装置，用于设置用于信息记录表面上的信息的光学记录和记录在信息记录表面上的信息的光学再现中的至少一个的伺服控制的调整值。设定装置设定与信息记录面之一对应的调整值。另一设定装置设定与信息记录面以外的其他表面对应的另一调整值。然后，计算装置计算表示调整值与另一调整值之间的关系的关系值。存储设备存储计算的关系值。复位装置使用先前设定的另一个调整值和调整值复位时的关系值来重置调整值，并使用先前设置的调整值和另一个调整值复位时的关系值复位另一个调整值。

5. 发明授权

US06560173B2 Servo control apparatus for optical disc player 失效
公开(公告)号：US06560173B2
公开(公告)日：2003-05-06
申请号：US09836456
申请日：2001-04-18
申请人： Takao Shimamura , Takashi Sasaki , Kenichi Takahashi , Yoshihiro Hashizuka , Koichi Kikuchi , Shinya Honjou , Takashi Suzuki , Hideaki Yoshimura
发明人： Takao Shimamura , Takashi Sasaki , Kenichi Takahashi , Yoshihiro Hashizuka , Koichi Kikuchi , Shinya Honjou , Takashi Suzuki , Hideaki Yoshimura
IPC分类号： G11B700
CPC分类号： G11B7/0945 , G11B7/094 , G11B7/0941
摘要： A servo-control apparatus is provided for use with an optical disc player for reading and/or recording information. The apparatus includes an adjustment section for performing coarse and fine adjustment of a servo loop gain in accordance with a storage medium loaded in the player; a memory for storing a gain adjustment value; a discriminator for determining, upon one of reading and recording information, that the storage medium has already been subjected to the coarse and fine adjustment; and a controller. The controller allows the adjustment section to perform the fine adjustment of the servo loop gain in accordance with the stored adjustment value when it is determined that the storage medium has already been subjected to the coarse and fine adjustment.

6. 发明授权

US06970402B1 Carrier mechanism 失效
标题翻译：载体机制
公开(公告)号：US06970402B1
公开(公告)日：2005-11-29
申请号：US09490113
申请日：2000-01-24
申请人： Takao Shimamura , Fumihiko Nakamura , Hideaki Yoshimura , Nobutaka Kawakita
发明人： Takao Shimamura , Fumihiko Nakamura , Hideaki Yoshimura , Nobutaka Kawakita
IPC分类号： G11B17/22 , G11B7/00 , G11B17/26 , G11B17/30
CPC分类号： G11B17/30
摘要： There is provided a carrier mechanism which can move a carrier section 23 to a desired position with high accuracy. The carrier mechanism is comprised of the carrier section 23, a driving motor 18, and an actuator formed of a cam mechanism 13, 15 for transmitting a driving force of the driving motor 18 to the carrier section 23 to convey the same. When the carrier section 23 is moved upward with respect to the present position, the carrier section 23 is once moved (elevated) to a position in excess of a desired position, then moved downward from the exceeded position to the desired position. When the carrier section 23 is moved downward from the present position, the carrier section 23 is moved to the desired position without exceeding the desired position. By virtue of this operation, in both of the elevation and lowering of the carrier section 23, the carrier section 23 reaches the desired section by lowering thereto at its final stage of the movement. Further, the so-called actuator for driving the carrier section 23 is held in a predetermined direction, and therefore the carrier section 23 can be positioned to the desired position with high accuracy.
摘要翻译：提供了一种能够以高精度将载体部23移动到期望位置的载体机构。载体机构包括载体部分23，驱动马达18和由凸轮机构13,15形成的致动器，用于将驱动马达18的驱动力传递到载体部分23以将其传送。当托架部分23相对于当前位置向上移动时，托架部分23一度移动（升高）到超出期望位置的位置，然后从超出位置向下移动到期望位置。当托架部分23从当前位置向下移动时，托架部分23移动到期望的位置而不超过期望的位置。通过这种操作，在承载部分23的升高和降低两者中，承载部分23在其运动的最后阶段通过下降到达期望的部分。此外，用于驱动承载部23的所谓的致动器被保持在预定方向上，因此承载部23可以高精度地定位到期望的位置。

7. 发明授权

US06788633B2 Optical disk reproducing apparatus and setup method 失效
标题翻译：光盘再生装置及其设置方法
公开(公告)号：US06788633B2
公开(公告)日：2004-09-07
申请号：US09836533
申请日：2001-04-18
申请人： Takao Shimamura
发明人： Takao Shimamura
IPC分类号： G11B558
CPC分类号： G11B7/126 , G11B7/08505 , G11B7/094 , G11B7/0941 , G11B7/0945 , G11B7/0946
摘要： When a setup is performed by reproducing conditions corresponding to the first kind of optical disk and a setup is subsequently performed by reproducing conditions corresponding to the second kind of optical disk, the reproducing conditions which succeed to at least a part of the reproducing conditions corresponding to the first kind of optical disk are used as reproducing conditions corresponding to the second kind of optical disk and the setup is performed. When the setup is completed, the reproducing conditions corresponding to the optical disk as a target of the setup are stored. When the same optical disk is set up again, the stored reproducing conditions are used.
摘要翻译：当通过再现与第一种类型的光盘相对应的条件进行设置时，随后通过再现与第二种类型的光盘相对应的条件来执行设置，再现条件是，至少部分再现条件对应于第一种光盘被用作对应于第二类光盘的再现条件，并且进行设置。当设置完成时，存储与作为设置的目标的光盘相对应的再现条件。当再次设置相同的光盘时，使用存储的再现条件。

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