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    • 17. 发明授权
    • Optical disk apparatus
    • 光盘装置
    • US08526287B2
    • 2013-09-03
    • US13637520
    • 2011-11-09
    • Kenji KondoKenji FujiuneTakeharu Yamamoto
    • Kenji KondoKenji FujiuneTakeharu Yamamoto
    • G11B7/00
    • G11B7/1387G11B7/094G11B7/0941G11B2007/13727
    • 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.
    • 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。
    • 18. 发明申请
    • IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM
    • 图像处理设备,图像处理方法和程序
    • US20130195187A1
    • 2013-08-01
    • US13877393
    • 2011-11-29
    • Kenji Kondo
    • Kenji Kondo
    • H04N7/26
    • H04N19/80H04N19/43H04N19/523H04N19/59
    • 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.
    • 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。
    • 19. 发明申请
    • OPTICAL INFORMATION APPARATUS AND INFORMATION RECORDING OR REPRODUCING METHOD
    • 光信息设备和信息记录或重现方法
    • US20130100787A1
    • 2013-04-25
    • US13807561
    • 2012-04-25
    • Kenji FujiuneTakeharu YamamotoKenji Kondo
    • Kenji FujiuneTakeharu YamamotoKenji Kondo
    • G11B21/10
    • G11B21/106G11B7/00736G11B7/08511G11B7/0956G11B2007/0013
    • 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.
    • 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。
    • 20. 发明申请
    • OPTICAL DISK APPARATUS
    • 光盘设备
    • US20130016594A1
    • 2013-01-17
    • US13637520
    • 2011-11-09
    • Kenji KondoKenji FujiuneTakeharu Yamamoto
    • Kenji KondoKenji FujiuneTakeharu Yamamoto
    • G11B20/00
    • G11B7/1387G11B7/094G11B7/0941G11B2007/13727
    • 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.
    • 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。