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1. 发明授权

US08120998B2 Optical disk drive and method for driving the optical disk drive in relation to a velocity switching point 有权
标题翻译：光盘驱动器和相对于速度切换点驱动光盘驱动器的方法
公开(公告)号：US08120998B2
公开(公告)日：2012-02-21
申请号：US11460713
申请日：2006-07-28
申请人： Akira Yoshikawa , Kenji Kondo
发明人： Akira Yoshikawa , Kenji Kondo
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B19/127
摘要： An optical disk drive includes: an objective lens for converging a light beam onto an optical disk with an information storage layer; an actuator for moving the lens perpendicularly to the storage layer; an actuator driver for moving the lens at a predetermined velocity by controlling the actuator's operation; and a disk position detector for detecting the position of the lens, when the focal point of the beam is located on the storage layer, as a disk position. While the lens is being moved toward the disk to perform a focus finding operation, the moving velocity of the lens is set high until the lens reaches a velocity switching point, determined by reference to the disk position, and is set low once the lens has passed the point. The switching point is set farther away from the disk than the position of the lens is when the focal point of the beam is located on the storage layer of the disk.
摘要翻译：光盘驱动器包括：用于将光束会聚到具有信息存储层的光盘上的物镜; 用于使透镜垂直于存储层移动的致动器; 用于通过控制致动器的操作以预定速度移动透镜的致动器驱动器; 以及盘位置检测器，当光束的焦点位于存储层上时，用于检测透镜的位置作为光盘位置。当透镜朝向盘移动以执行聚焦发现操作时，透镜的移动速度被设置为高直到透镜到达参考盘位置确定的速度切换点，并且一旦透镜具有通过了一点。当光束的焦点位于盘的存储层上时，切换点被设置得比透镜的位置更远离镜头的位置。

2. 发明申请

US20060002251A1 Optical disk apparatus 有权
公开(公告)号：US20060002251A1
公开(公告)日：2006-01-05
申请号：US11172545
申请日：2005-06-30
申请人： Akira Yoshikawa , Kenji Kondo
发明人： Akira Yoshikawa , Kenji Kondo
IPC分类号： G11B7/00
CPC分类号： G11B7/0946 , G11B7/08511 , G11B7/0908 , G11B2007/0013
摘要： An optical disk apparatus is provided with an actuator that moves a beam spot that is formed by an optical head on an optical disk to recording surfaces; position control portions that control a position of the beam spot based on the output signal of the optical head; a disturbance estimation observer relating to the actuator; and a summing circuit that takes a sum of the output of the position control portion and the output of the observer, so as to drive the actuator based on the output of the summing circuit. The optical disk apparatus further is provided with a system controller that turns the observer on and off, a LPF that attenuates the high-frequency components of the output of the observer and retains the final value of the observer when the observer is turned off, and a switching circuit that switches between the output of the observer and the output of the LPF according to whether the observer is on or off. When the observer processing is off, the output of the LPF is supplied to the summing circuit. Thereby, instability in the control due to observer processing can be avoided even at the time of mode transition or addition of disturbance from outside.

3. 发明授权

US07525883B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US07525883B2
公开(公告)日：2009-04-28
申请号：US11172545
申请日：2005-06-30
申请人： Akira Yoshikawa , Kenji Kondo
发明人： Akira Yoshikawa , Kenji Kondo
IPC分类号： G11B7/08
CPC分类号： G11B7/0946 , G11B7/08511 , G11B7/0908 , G11B2007/0013
摘要： An optical disk apparatus is provided with an actuator that moves a beam spot that is formed by an optical head on an optical disk to recording surfaces; position control portions that control a position of the beam spot based on the output signal of the optical head; a disturbance estimation observer relating to the actuator; and a summing circuit that takes a sum of the output of the position control portion and the output of the observer, so as to drive the actuator based on the output of the summing circuit. The optical disk apparatus further is provided with a system controller that turns the observer on and off, a LPF that attenuates the high-frequency components of the output of the observer and retains the final value of the observer when the observer is turned off, and a switching circuit that switches between the output of the observer and the output of the LPF according to whether the observer is on or off. When the observer processing is off, the output of the LPF is supplied to the summing circuit. Thereby, instability in the control due to observer processing can be avoided even at the time of mode transition or addition of disturbance from outside.
摘要翻译：光盘装置设置有致动器，其将由光学头形成的光束移动到光盘到记录表面; 位置控制部，其基于所述光学头的输出信号来控制所述光点的位置; 涉及致动器的扰动估计观察器; 以及求和电路，其获取位置控制部分的输出和观察者的输出的和，以便基于求和电路的输出来驱动致动器。该光盘装置还设置有使观察者接通和关闭的系统控制器，LPF，其使观察者的输出的高频分量衰减，并且当观察者关闭时保持观察者的最终值;以及切换电路，根据观察者是否开启，在观察者的输出和LPF的输出之间进行切换。当观察者处理关闭时，LPF的输出被提供给求和电路。因此，即使在模式转换时或从外部增加干扰的情况下也可以避免由观察者处理引起的控制的不稳定性。

4. 发明授权

US07242648B2 Tracking error signal generation device, optical disc apparatus, tracking error signal generation method and tracking control method 失效
标题翻译：跟踪误差信号发生装置，光盘装置，跟踪误差信号产生方法和跟踪控制方法
公开(公告)号：US07242648B2
公开(公告)日：2007-07-10
申请号：US10784318
申请日：2004-02-20
申请人： Shin-ichi Yamada , Yuuichi Kuze , Katsuya Watanabe , Kenji Kondo , Akira Yoshikawa
发明人： Shin-ichi Yamada , Yuuichi Kuze , Katsuya Watanabe , Kenji Kondo , Akira Yoshikawa
IPC分类号： G11B7/00
CPC分类号： G11B7/0953 , G11B7/0903
摘要： A tracking error signal generation device includes a splitting and convergence section for splitting an optical beam into a main beam and a sub beam; a two-portion main beam detection section for detecting the main beam; a main beam push-pull signal generation section for generating a main beam push-pull signal; a two-portion sub beam detection section for detecting the sub beam; a sub beam push-pull signal generation section for generating a sub beam push-pull signal; a displacement amount detection section for detecting a displacement amount of the main beam push-pull signal from a reference value based on the main beam push-pull signal and the sub beam push-pull signal; and a tracking error signal generation section for generating a tracking error signal by correcting either the main beam push-pull signal or the sub beam push-pull signal based on the displacement amount.
摘要翻译：跟踪误差信号产生装置包括用于将光束分解成主光束和子光束的分离和会聚部分; 用于检测主光束的两部分主光束检测部分; 用于产生主光束推挽信号的主光束推挽信号产生部分; 用于检测子光束的两部分子光束检测部分; 子波束推挽信号产生部分，用于产生子波束推挽信号; 位移量检测部分，用于基于主光束推挽信号和子光束推挽信号，从基准值检测主光束推挽信号的位移量; 以及跟踪误差信号产生部分，用于通过基于位移量校正主光束推挽信号或子光束推挽信号来产生跟踪误差信号。

5. 发明申请

US20070025220A1 OPTICAL DISC DRIVE AND METHOD FOR DRIVING THE OPTICAL DISK DRIVE 有权
标题翻译：光盘驱动器和驱动光盘驱动器的方法
公开(公告)号：US20070025220A1
公开(公告)日：2007-02-01
申请号：US11460713
申请日：2006-07-28
申请人： Akira Yoshikawa , Kenji Kondo
发明人： Akira Yoshikawa , Kenji Kondo
IPC分类号： G11B27/36
CPC分类号： G11B7/08511 , G11B19/127
摘要： An optical disk drive includes: an objective lens for converging a light beam onto an optical disk with an information storage layer; an actuator for moving the lens perpendicularly to the storage layer; an actuator driver for moving the lens at a predetermined velocity by controlling the actuator's operation; and a disk position detector for detecting the position of the lens, when the focal point of the beam is located on the storage layer, as a disk position. While the lens is being moved toward the disk to perform a focus finding operation, the moving velocity of the lens is set high until the lens reaches a velocity switching point, determined by reference to the disk position, and is set low once the lens has passed the point. The switching point is set farther away from the disk than the position of the lens is when the focal point of the beam is located on the storage layer of the disk.
摘要翻译：光盘驱动器包括：用于将光束会聚到具有信息存储层的光盘上的物镜; 用于使透镜垂直于存储层移动的致动器; 用于通过控制致动器的操作以预定速度移动透镜的致动器驱动器; 以及盘位置检测器，当光束的焦点位于存储层上时，用于检测透镜的位置作为光盘位置。当透镜朝向盘移动以执行聚焦发现操作时，透镜的移动速度被设置为高直到透镜到达参考盘位置确定的速度切换点，并且一旦透镜具有通过了一点。当光束的焦点位于盘的存储层上时，切换点设置得比透镜的位置更远离盘的位置。

6. 发明授权

US09918084B2 Encoding device, encoding method, decoding device, and decoding method 有权
公开(公告)号：US09918084B2
公开(公告)日：2018-03-13
申请号：US13805428
申请日：2011-07-08
申请人： Kenji Kondo
发明人： Kenji Kondo
IPC分类号： H04N19/159 , H04N19/176 , H04N19/61 , H04N19/63 , H04N19/122 , H04N19/18 , H04N19/42
CPC分类号： H04N19/112 , H04N19/122 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/42 , H04N19/439 , H04N19/61 , H04N19/63
摘要： The present technology relates to an encoding device and an encoding method, and a decoding device and a decoding method that are capable of reducing the calculation amount of orthogonal transform processing or inverse orthogonal transform processing. A DWT unit (91) performs a DWT of which the calculation amount is smaller than that of a KLT for residual information. KLT units (92-0 to 92-8) perform separable-type KLTs for a low-frequency component of the residual information that is acquired as a result of the DWT using bases of KLTs of the corresponding intra prediction modes. A coefficient acquired as a result of the KLT and a high-frequency component of the residual information that is acquired as a result of the DWT are losslessly encoded. The present technology can be applied to, for example, an image encoding device.

7. 发明授权

US08805085B2 Image processing device and method 有权
公开(公告)号：US08805085B2
公开(公告)日：2014-08-12
申请号：US13386849
申请日：2010-07-23
申请人： Kenji Kondo
发明人： Kenji Kondo
IPC分类号： G06K9/50
CPC分类号： H04N19/86 , G06T9/40 , H04N19/117 , H04N19/124 , H04N19/174 , H04N19/436 , H04N19/46 , H04N19/503 , H04N19/61 , H04N19/82 , H04N19/96
摘要： The present invention relates to an image processing device and method whereby deterioration of effects of filter processing due to local control of filter processing when encoding or decoding can be suppressed. A boundary control flag generating unit 132 of a control information generating unit 112 generates boundary control flags based on system specification information which a system specification managing unit 141 manages. A control unit 171 of an adaptive filter processing unit 113 determines a processing method for filter processing to be performed as to pixels nearby a slice boundary following the value of the boundary control flag. For example, selection is made to perform filter processing straddling slices or to perform filter processing closed at the present slice. The present invention can be applied to an image processing device, for example.

8. 发明授权

US08526287B2 Optical disk apparatus 有权
标题翻译：光盘装置
公开(公告)号：US08526287B2
公开(公告)日：2013-09-03
申请号：US13637520
申请日：2011-11-09
申请人： Kenji Kondo , Kenji Fujiune , Takeharu Yamamoto
发明人： Kenji Kondo , Kenji Fujiune , Takeharu Yamamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1387 , G11B7/094 , G11B7/0941 , G11B2007/13727
摘要： Provided is an optical disk apparatus capable achieving stable focus control or tracking control. A first detector receives reflected light from an object lens optical system, a second detector receives reflected light from a prescribed information layer, a positional deviation determination unit determines positional deviation between a focal point of a light beam and a point where information on the prescribed information layer is recorded or reproduced, on the basis of a signal from the second detector, a stray light determination unit determines a surface stray light component which is reflected light from the surface of an optical disk and is included in the signal from the positional deviation determination unit, on the basis of the signal from the first detector, and a stray light correction unit corrects the signal output from the positional deviation determination unit on the basis of the surface stray light component thus determined.
摘要翻译：提供一种能够实现稳定的聚焦控制或跟踪控制的光盘装置。第一检测器接收来自物镜光学系统的反射光，第二检测器接收来自规定信息层的反射光，位置偏差确定单元确定光束焦点与其中关于规定信息的信息的位置偏差层被记录或再现，基于来自第二检测器的信号，杂散光确定单元确定作为来自光盘表面的反射光的表面杂散光分量，并且包括在来自位置偏差确定的信号中基于来自第一检测器的信号，并且杂散光校正单元基于由此确定的表面杂散光分量来校正从位置偏差确定单元输出的信号。

9. 发明申请

US20130195187A1 IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM 审中-公开
标题翻译：图像处理设备，图像处理方法和程序
公开(公告)号：US20130195187A1
公开(公告)日：2013-08-01
申请号：US13877393
申请日：2011-11-29
申请人： Kenji Kondo
发明人： Kenji Kondo
IPC分类号： H04N7/26
CPC分类号： H04N19/80 , H04N19/43 , H04N19/523 , H04N19/59
摘要： The present invention relates to an image processing device, an image processing method, and a program that can reduce processing loads and delays while suppressing decreases in inter prediction precision when motion compensation operations with fractional precision are performed in inter predictions. When a pixel of a predicted image in an inter prediction has a fractional pixel position that is not a ½ pixel position in the horizontal direction and the vertical direction in a reference image, a reference image read unit 41 reads predetermined reference pixels including reference pixels aligned in two oblique directions perpendicular to each other. A FIR filter 42 calculates a pixel in a fractional position in the reference image as the pixel of the predicted image, by using the read predetermined reference pixels. The present invention can be applied to encoding devices that perform compression encoding by H.264/AVC, for example.
摘要翻译：本发明涉及一种图像处理装置，图像处理方法和程序，其能够在以帧间预测方式执行具有分数精度的运动补偿操作时，同时抑制帧间预测精度的降低而减少处理负荷和延迟。当帧间预测中的预测图像的像素具有在参考图像中不是水平方向和垂直方向上的1/2像素位置的分数像素位置时，参考图像读取单元41读取包括参考像素对准的参考像素在彼此垂直的两个倾斜方向上。 FIR滤波器42通过使用读取的预定参考像素来计算参考图像中的分数位置中的像素作为预测图像的像素。例如，本发明可以应用于通过H.264 / AVC进行压缩编码的编码装置。

10. 发明申请

US20130100787A1 OPTICAL INFORMATION APPARATUS AND INFORMATION RECORDING OR REPRODUCING METHOD 审中-公开
标题翻译：光信息设备和信息记录或重现方法
公开(公告)号：US20130100787A1
公开(公告)日：2013-04-25
申请号：US13807561
申请日：2012-04-25
申请人： Kenji Fujiune , Takeharu Yamamoto , Kenji Kondo
发明人： Kenji Fujiune , Takeharu Yamamoto , Kenji Kondo
IPC分类号： G11B21/10
CPC分类号： G11B21/106 , G11B7/00736 , G11B7/08511 , G11B7/0956 , G11B2007/0013
摘要： An optical head (10) focuses and irradiates a servo light beam onto at least one servo layer, and focuses and irradiates a recording/reproducing light beam onto a plurality of recording layers. An initial recording unit (20) records layer position information for specifying a position of each recording layer in advance in a predetermined position of each recording layer before recording user data in use of the recording/reproducing light beam, a layer position detection unit (21) reads layer position information in a predetermined recording layer by using the recording/reproducing light beam, and detects which one of the plurality of recording layers is the predetermined recording layer where the focal point of the recording/reproducing light beam is positioned, based on the read layer position information, and a seeking unit (22) moves the focal point of the recording/reproducing light beam to a target position based on the detected layer position.
摘要翻译：光头（10）将伺服光束聚焦并照射到至少一个伺服层上，并将记录/再现光束聚焦并照射到多个记录层上。初始记录单元（20）在使用记录/再现光束记录用户数据之前，在每个记录层的预定位置预先记录用于指定每个记录层的位置的层位置信息，层位置检测单元（21 ）通过使用记录/再现光束在预定记录层中读取层位置信息，并且基于记录/再现光束的位置来检测多个记录层中的哪个记录层是记录/再现光束的焦点的预定记录层读取层位置信息和搜索单元（22）基于检测到的层位置将记录/再现光束的焦点移动到目标位置。

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