公开(公告)号：US07133336B2

公开(公告)日：2006-11-07

申请号：US10621869

申请日：2003-07-17

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B7/00

CPC classification number: G11B19/28 ,  G11B19/22

Abstract: As the result of the detection of the runaway of the optical disc when the light pickup cannot detect sync signal in the reproducing signal sent from the optical disc, the control circuit turns off the tracking servo mechanism which controls the tracking of the optical disc by the light pickup. The direction of rotation of the optical disc that is running away is detected by comparing the initial mirror count value obtained by counting for a predetermined period of time the mirror pulse detected in correspondence with the RF signal based on the reproducing signal, with the mirror count value during braking obtained by counting the mirror pulse for the predetermined period of time when the spindle motor is applied with the brake pulse. The brake signal working in the direction opposite to the detected direction of rotation is applied to the spindle motor so as to stop the rotation of the optical disc.

Abstract translation: 当光拾取器不能检测到从光盘发送的再现信号中的同步信号时检测到光盘失控的结果，控制电路关闭跟踪伺服机构，该跟踪伺服机构控制光盘的跟踪 光拾取 通过将根据再现信号与RF信号相对应地检测到的镜像脉冲的预定时间段进行计数而获得的初始反射镜计数值与反射镜计数进行比较，来检测正在运行的光盘的旋转方向 通过在主轴电动机施加制动脉冲的预定时间段内对镜像脉冲进行计数而获得的制动期间的值。 沿与检测到的旋转方向相反的方向工作的制动信号施加到主轴电机，以停止光盘的旋转。

公开(公告)号：US20060044948A1

公开(公告)日：2006-03-02

申请号：US11203134

申请日：2005-08-15

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B19/00 ,  G11B20/00

CPC classification number: G11B19/06 ,  G11B20/10

Abstract: A portable disk player capable of playing a disk while carrying, includes: a reproducing part for playing a disk; a battery for supplying power for each part; a main title detecting unit for detecting playing a main title recorded in the disk, wherein when a power-saving mode is set, the power is turned off at an end of playing the main title.

Abstract translation: 一种携带时能够播放盘的便携式磁盘播放机包括：播放盘的再生部; 用于为每个部件供电的电池; 主标题检测单元，用于检测播放记录在盘中的主标题，其中当设置省电模式时，在播放主标题结束时关闭电源。

公开(公告)号：US07124306B2

公开(公告)日：2006-10-17

申请号：US09839532

申请日：2001-04-20

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G06F1/30

CPC classification number: G06F1/26 ,  G06F1/24

Abstract: In a power on/off circuit apparatus, if a microcomputer malfunctions, an on/off operation of a power switch is executed, and thereby, the microcomputer is reset. A non-volatile memory stores an operating state of components just before the power switch is operated. Therefore, if the microcomputer malfunctions, without unplugging an AC cord, it is possible to reset the microcomputer by the power switch, and thus, to carry the components from a state just before the reset to the next operating state.

Abstract translation: 在电源接通/断开电路装置中，如果微计算机发生故障，则执行电源开关的接通/断开操作，从而复位微型计算机。 非易失性存储器在操作电源开关之前存储组件的操作状态。 因此，如果微计算机出现故障，不用拔下交流电源线，就可以通过电源开关来复位微型计算机，从而将组件从复位前的状态下载到下一个工作状态。

公开(公告)号：US07116898B2

公开(公告)日：2006-10-03

申请号：US09934685

申请日：2001-08-23

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: H04N5/85

CPC classification number: G11B27/329 ,  G11B27/002 ,  G11B27/007 ,  G11B27/11 ,  G11B27/34 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/65 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8227

Abstract: A DVD auto-changer includes a controller, and in the DVD auto-changer, an all-repeat-mode that a plurality of disks stocked are exchanged to be successively reproduced can be set. The controller determines whether the all-repeat-mode is set or not, and unconditionally reproduces a story portion upon exchanging the disks when the all-repeat-mode is set. In other words, the controller obtains a start address of the story portion, and reproduces it from the start address.

公开(公告)号：US07046592B2

公开(公告)日：2006-05-16

申请号：US10460313

申请日：2003-06-13

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B7/00

CPC classification number: G11B19/28 ,  G11B7/08541 ,  G11B7/0945

Abstract: When a run-away phenomenon of an optical disk occurs, a control circuit detects a rotational direction of the optical disk that runs away by comparing an initial track count value and a braking time track count value. The initial track count value is a value calculated by counting track pulses corresponding to a tracking error signal for a predetermined time when a tracking servo is turned off. The braking time track count value is a value calculated by counting the track pulses corresponding to the tracking error signal for a predetermined time, when a brake pulse is applied to the spindle motor.

公开(公告)号：US06734418B2

公开(公告)日：2004-05-11

申请号：US10254781

申请日：2002-09-26

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G01D534

CPC classification number: G01P13/045 ,  G01D5/2492 ,  G01D5/363 ,  G01P3/486

Abstract: A control part 7 detects pulse widths of four continuous pulses, and a pulse width w1 of a pulse detected first is compared in size with a pulse width w2 of a pulse detected second and when w2 is larger, normality is determined. The pulse width w2 of the pulse detected second is compared in size with a pulse width w3 of a pulse detected third and when w3 is larger, normality is determined. The pulse width w3 of the pulse detected third is compared in size with the pulse width w1 of the pulse detected first and when w1 is larger, normality is determined. In the above first to fourth determinations, when the number of cases determined as normality is two times or more, normal rotation is determined, and otherwise, reverse rotation is determined.

Abstract translation: 控制部分7检测四个连续脉冲的脉冲宽度，并且首先将检测到的脉冲的脉冲宽度w1与检测到的脉冲的脉冲宽度w2进行比较，并且当w2较大时，确定正常。 将检测到的脉冲的脉冲宽度w2的尺寸与检测到的脉冲的脉冲宽度w3进行比较，当w3较大时，确定正常。 将第三个检测的脉冲的脉冲宽度w3与首先检测的脉冲的脉冲宽度w1进行比较，当w1较大时，确定正常。 在上述第一至第四确定中，当确定为正常的情况的数量是两倍或更多时，确定正常旋转，否则确定反向旋转。

公开(公告)号：US07251819B2

公开(公告)日：2007-07-31

申请号：US10911053

申请日：2004-08-04

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B7/09

CPC classification number: G11B7/0932 ,  G11B7/0935

Abstract: An optical pickup device includes an objective lens holder having a pair of tracking coils and an objective lens fixed thereto, and a pair of magnets. The pair of tracking coils are rectangular or square in geometry. When the objective lens is not displaced in a tracking direction, one tracking coil has a vertical portion closer to a centerline, which passes through the pair of magnets at their respective centers, at a position distant from the centerline in a positive direction of rotation by a prescribed angle θ and the other tracking coil has a vertical portion closer to the centerline at a position distant from the centerline in a negative direction of rotation by the prescribed angle θ.

Abstract translation: 一种光拾取装置，包括具有一对跟踪线圈和固定于其上的物镜的物镜保持器和一对磁体。 该对跟踪线圈的几何形状为矩形或正方形。 当物镜在跟踪方向上不移动时，一个跟踪线圈具有更靠近中心线的垂直部分，该中心线在其各自的中心处通过一对磁体，在远离中心线的位置处于正向旋转方向 规定的角度θ和另一个跟踪线圈在垂直于旋转方向的中心线远离指定角度θ的位置处具有更靠近中心线的垂直部分。

公开(公告)号：US06965549B2

公开(公告)日：2005-11-15

申请号：US10059324

申请日：2002-01-31

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B7/085 ,  G11B7/09 ,  G11B19/10 ,  G11B7/00

CPC classification number: G11B7/0945 ,  G11B19/10

Abstract: In an optical disc apparatus 1, when a supply of operation power to the main unit is started, an objective lens 4a is moved to a focusing position (a position where the focus is placed on a reflective recording layer of an optical disc 10) which is determined in the design level. If the quantity of reflected light at this time is equal to or larger than a threshold SH, it is judged that the optical disc 10 is set in the main unit. Therefore, a time period required for detecting whether the optical disc 10 is set in the main unit or not can be shortened.

Abstract translation: 在光盘装置1中，当开始向主单元提供操作电力时，物镜4a移动到聚焦位置（焦点位于光盘10的反射记录层上的位置） 这是在设计层面确定的。 如果此时的反射光量等于或大于阈值SH，则判断光盘10被设置在主单元中。 因此，可以缩短检测光盘10是否设置在主单元中所需的时间。

公开(公告)号：US20050034143A1

公开(公告)日：2005-02-10

申请号：US10911053

申请日：2004-08-04

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B7/08 ,  G11B7/09

CPC classification number: G11B7/0932 ,  G11B7/0935

Abstract: An optical pickup device includes an objective lens holder having a pair of tracking coils and an objective lens fixed thereto, and a pair of magnets. The pair of tracking coils are rectangular or square in geometry. When the objective lens is not displaced in a tracking direction, one tracking coil has a vertical portion closer to a centerline, which passes through the pair of magnets at their respective centers, at a position distant from the centerline in a positive direction of rotation by a prescribed angle θ and the other tracking coil has a vertical portion closer to the centerline at a position distant from the centerline in a negative direction of rotation by the prescribed angle θ.

Abstract translation: 一种光拾取装置，包括具有一对跟踪线圈和固定于其上的物镜的物镜保持器和一对磁体。 该对跟踪线圈的几何形状为矩形或正方形。 当物镜在跟踪方向上不移动时，一个跟踪线圈具有更靠近中心线的垂直部分，该中心线在其各自的中心处通过一对磁体，在远离中心线的位置处于正向旋转方向 规定的角度θ和另一个跟踪线圈在垂直于旋转方向的中心线远离指定角度θ的位置处具有更靠近中心线的垂直部分。

公开(公告)号：US06335909B1

公开(公告)日：2002-01-01

申请号：US09237376

申请日：1999-01-26

Applicant: Chiaki Hashimoto

Inventor： Chiaki Hashimoto

IPC: G11B709

CPC classification number: G11B7/0945 ,  G11B7/094 ,  G11B7/0941 ,  G11B2007/0013

Abstract: A multi-layer recording medium reproducing device having an automatic adjustment mode of automatically performing servo adjustment to reproduce a multi-layer optical disk. The device includes a storing section which, during the automatic adjustment mode, performs the servo adjustment of recording layers of the optical disk respectively for predetermined periods of time, and stores the resultant service adjustment values respectively for the recording layers; and a servo adjustment control section which, during a reproduction of the optical disk, reads from the storing section a servo adjustment value corresponding to one of the recording layers to be reproduced, and performs the servo adjustment to reach the servo adjustment value thus read.

Abstract translation: 一种具有自动调整方式的多层记录介质再生装置，其自动执行伺服调整以再现多层光盘。 该装置包括：存储部，其在自动调整模式期间分别对预定时间段的光盘的记录层进行伺服调整，并分别存储所记录层的服务调整值; 以及伺服调整控制部，其在光盘的再现期间从存储部读取与要再现的记录层之一相对应的伺服调整值，并且执行伺服调整以达到如此读取的伺服调整值。