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    • 22. 发明授权
    • Integrated optical element, optical pickup, and optical disk device
    • 集成光学元件,光学拾取器和光盘装置
    • US06483650B1
    • 2002-11-19
    • US09509804
    • 2000-04-03
    • Satoshi Imai
    • Satoshi Imai
    • G02B702
    • G11B7/131G11B7/08517G11B7/0901G11B7/0903G11B7/0908G11B7/0916G11B7/0935G11B7/0943G11B7/123G11B7/1353G11B7/1381
    • A hologram 48 as optical path branching element has two hologram areas 48b and 48c for diffracting a return light beam into different directions, and a boundary 48a between them is inclined at a predetermined angle with respect to the direction corresponding to the direction of radius of the optical disc 11. The light diffracted by the one hologram area 48b is received by light-receiving sections A1 and A2 of a photodetector IC 44, and the light diffracted by the other hologram area 48c is received by light-receiving sections A3 and A4. With the above-described structure, a position deviation of an objective lens 27 at the time of access to a desired recording track on an optical disc 11 can be detected by finding the difference between the light quantity of the light received by the light-receiving sections A1 and A2 of the photodetector IC 44 and the light quantity of the light received by the light-receiving sections A3 and A4.
    • 作为光路分支元件的全息图48具有两个用于将返回光束衍射到不同方向的全息区域48b和48c,并且它们之间的边界48a相对于与半径方向对应的方向以预定角度倾斜 由一个全息区域48b衍射的光被光电检测器IC44的光接收部分A1和A2接收,由另一个全息区域48c衍射的光被光接收部分A3和A4接收。 利用上述结构,可以通过找到由光接收器接收的光的光量之间的差异来检测物镜27在光盘11上的期望记录轨迹时的位置偏差 光电检测器IC44的部分A1和A2以及由光接收部分A3和A4接收的光的光量。
    • 25. 发明授权
    • Video quality monitoring method, distribution server, and client
    • 视频质量监控方式,分发服务器和客户端
    • US08695051B2
    • 2014-04-08
    • US13597981
    • 2012-08-29
    • Koji NakamichiSatoshi ImaiHiroshi YamamotoToshio Soumiya
    • Koji NakamichiSatoshi ImaiHiroshi YamamotoToshio Soumiya
    • H04N7/173
    • H04N17/004H04N21/2404H04N21/2407H04N21/64723
    • A video quality monitoring method includes a distribution server measuring first video quality index values according to a full-reference method by comparing a video, distributed from the distribution server to a client through a network, with a degraded video, generated by causing multiple scenarios of quality degradation due to the network in the video in a pseudo manner, creating characteristic data of first quality degradation values, obtained by causing the quality degradation to vary with the scenarios at regular intervals, and the first video quality index values corresponding to the respective scenarios, and transmitting the characteristic data to the client; and the client measuring a second quality degradation value in the video distributed through the network, and calculating a second video quality index value, equivalent to a value according to the full-reference method, of the distributed video from the measured second quality degradation value and the characteristic data.
    • 视频质量监视方法包括分发服务器,根据全参考方法,通过将通过网络从分发服务器分发给客户端的视频与通过使用多个场景的多个场景生成的劣化视频进行比较来测量第一视频质量指标值 以伪方式由于视频中的网络导致的质量劣化,产生通过使质量劣化以规则的间隔随场景而变化的第一质量劣化值的特征数据,以及与各个场景对应的第一视频质量指标值 并将特征数据发送给客户端; 并且所述客户端测量通过所述网络分发的视频中的第二质量劣化值,并且根据所测量的第二质量劣化值计算与所述全参考方法相对应的分布式视频的值的第二视频质量指标值,以及 特征数据。
    • 26. 发明授权
    • Camera module
    • 相机模块
    • US08692931B2
    • 2014-04-08
    • US12601042
    • 2009-01-20
    • Satoshi ImaiHironori ShimizuTomoki TaguchiRyosuke Sawano
    • Satoshi ImaiHironori ShimizuTomoki TaguchiRyosuke Sawano
    • H04N5/225
    • H04N5/2254G02B7/02G03B9/10H04N5/2253H04N5/2257
    • A shutter section (84), mounted to a front surface (2202) of a front lens barrel (22), is included. The shutter section (84) has a shutter blade (not shown) that opens and closes an optical path of an image pickup optical system (28), an actuator (not shown) that drives the shutter blade, and a case (86) that accommodates the shutter blade and the actuator and that is provided with an opening (8610) for the optical path. The shutter section (84) is mounted to the front surface (2202) of the front lens barrel (22) by stopping a cover-side engagement stopping section (88) of the cover (26) and a case-side engagement stopping section (90) of the case (86) by engaging them with each other. By these structures, it is possible to provide a camera module that is advantageous in terms of reducing costs and size.
    • 包括安装在前镜筒(22)的前表面(2202)上的遮光部分(84)。 快门部(84)具有打开和关闭图像拾取光学系统(28)的光路的快门叶片(未示出),驱动快门叶片的致动器(未示出)和壳体(86),其中, 容纳快门叶片和致动器,并且设置有用于光路的开口(8610)。 通过停止盖(26)的盖侧接合停止部(88)和壳体侧接合停止部(84),将快门部(84)安装到前镜筒(22)的前表面(2202) (86)的相互接合。 通过这些结构,可以提供在降低成本和尺寸方面是有利的照相机模块。
    • 27. 发明授权
    • Routing device, method, and program
    • 路由设备,方法和程序
    • US08687498B2
    • 2014-04-01
    • US13030492
    • 2011-02-18
    • Satoshi Imai
    • Satoshi Imai
    • H04W4/00
    • H04L41/5019H04L41/5077H04L45/302H04L45/38H04L45/42
    • A routing apparatus that determines a path for a flow in a network including a plurality of data links, the routing apparatus including: a constraint condition setting unit configured to generate a constraint condition that has a requirement that an end-to-end quality requirement of the flow is satisfied based on a quality variation occurring in each of the data links owing to the allocation of the flow to each of the data links and another requirement that an end-to-end quality requirement of another flow existing in each of the data links is satisfied based on a quality variation occurring in the another flow owing to the allocation of the flow to each of the data links; and a routing unit configured to determine the path for the flow from among a plurality of paths including the data links within a range satisfying the constraint condition.
    • 一种路由装置,其确定包括多个数据链路的网络中的流的路径,所述路由装置包括:约束条件设置单元,被配置为生成约束条件,所述约束条件要求所述约束条件的端到端质量要求 由于对每个数据链路的流量的分配,基于每个数据链路中出现的质量变化满足流程,并且另外要求存在于每个数据中的另一流的端到端质量要求 由于流向每个数据链路的分配,基于在另一个流中发生的质量变化来满足链路; 以及路由单元,被配置为从满足约束条件的范围内的包括所述数据链路的多个路径中确定所述流的路径。
    • 28. 发明授权
    • Sleep-mode control information processing device, storage medium and sleep-mode control method
    • 睡眠模式控制信息处理装置,存储介质和睡眠模式控制方法
    • US08654778B2
    • 2014-02-18
    • US12820301
    • 2010-06-22
    • Akiko YamadaSatoshi Imai
    • Akiko YamadaSatoshi Imai
    • H04L12/56
    • H04W40/005H04L45/125
    • An information processing device, comprising: a traffic control unit configured to regularly check whether packets are transmitted to an adjacent node and received from the adjacent node; and a sleep determination process unit configured to determine whether there is a possibility that packets are transmitted to the adjacent node when no packet is transmitted to the adjacent node and received from to the adjacent node, and to transmit a sleep OK notice to the adjacent node indicating that the adjacent node shift to a sleep mode when the sleep determination process unit determines that there is a low probability that packets are transmitted to the adjacent node.
    • 一种信息处理设备,包括:业务控制单元,被配置为定期检查分组是否被发送到相邻节点并从相邻节点接收; 以及睡眠判定处理单元,其被配置为当没有分组被发送到相邻节点并从相邻节点接收时,确定是否存在将分组发送到相邻节点的可能性,并且将睡眠OK通知发送到相邻节点 指示当睡眠确定处理单元确定分组被发送到相邻节点的可能性低时,相邻节点转移到睡眠模式。