Optical recording medium having servo area and groove section
    21.
    发明授权
    Optical recording medium having servo area and groove section 失效
    具有伺服区域和槽部分的光记录介质

    公开(公告)号:US07167436B2

    公开(公告)日:2007-01-23

    申请号:US10437180

    申请日:2003-05-14

    IPC分类号: G11B7/24 G11B7/007

    摘要: The present invention provides an optical recording medium capable of detecting groove start signals and groove end signals with an inexpensive detection circuit and allowing quick, stable clock detection and tracking pull-in, which optical recording medium is constructed in such a way that the depth DG of the grooves satisfies DG/(λ/N) 1.2 FWHM, where FWHM is a full width at half maximum of the light beam in the track direction.

    摘要翻译: 本发明提供了一种能够利用便宜的检测电路检测凹槽起始信号和凹槽结束信号并允许快速,稳定的时钟检测和跟踪拉入的光学记录介质,该光学记录介质被构造成使得深度D 沟槽的G'满足D&lt; N /(λ/ N)<0.16,其中λ是光束的波长,N是衬底的折射率, 并且槽边缘和最接近其的凹坑之间的距离L S s满足L S S / S 2 1.2 FWHM,其中FWHM是光束的半高的全宽 轨道方向。

    Optical recording medium and misalignment measuring instrument
    22.
    发明授权
    Optical recording medium and misalignment measuring instrument 失效
    光记录介质和未对准测量仪

    公开(公告)号:US07050386B2

    公开(公告)日:2006-05-23

    申请号:US10333059

    申请日:2001-08-29

    申请人: Eiji Ueda

    发明人: Eiji Ueda

    IPC分类号: G11B7/007

    摘要: To provide an optical recording medium and an eccentricity amount detecting device using the same that can detect an eccentricity amount representing a relative displacement amount in a radiation direction between a beam spot irradiated onto the optical recording medium and the optical recording medium. In the optical recording medium, a plurality (N) of servo areas (113) each including a first wobble mark (211) and a second wobble mark (212) and a plurality (N) of data areas for performing information recording and reproduction are arranged alternatively in a circumferential direction. Each of the servo areas is composed of a plurality of servo pattern areas (210a to 210c) arranged in the radial direction, which vary in a distance in the circumferential direction between the first wobble mark and the second wobble mark. The plurality of servo pattern areas include the same number of tracks, and the number is less than N/(2×π).

    摘要翻译: 提供一种光记录介质和使用该光记录介质的偏光量检测装置,该偏振量检测装置能够检测表示照射到光记录介质上的光点与光记录介质之间的辐射方向上的相对位移量的偏心量。 在光记录介质中,分别包括第一摆动标记(211)和第二摆动标记(212)的多个(N)个伺服区域(113)和用于执行信息记录和再现的多个数据区域(N) 交替地沿圆周方向排列。 每个伺服区域由在径向上布置的多个伺服图案区域(210a至210c)组成,它们在第一摆动标记和第二摆动标记之间沿圆周方向的距离变化。 多个伺服图案区域包括相同数目的轨道,并且数量小于N /(2xpi)。

    Reproduction apparatus and digest reproduction method
    23.
    发明申请
    Reproduction apparatus and digest reproduction method 审中-公开
    繁殖装置和消化繁殖方法

    公开(公告)号:US20050177858A1

    公开(公告)日:2005-08-11

    申请号:US10510159

    申请日:2004-04-23

    申请人: Eiji Ueda

    发明人: Eiji Ueda

    摘要: There is provided a reproduction apparatus which acquires information concerning a program digest, which is created by a third party, and performs a digest reproduction of a recorded program based on this information, while taking into consideration factors such as unreproduced portions of the recorded program and the amount of time which a user can spend for viewing, for example. From a recording/reproduction processing section (24), a digest information management section (27) acquires information concerning a recording process and a reproduction process, and based on such information, generates predetermined program recording information and predetermined program reproduction history information. From a server (40) on a network (30), the digest information management section (27) acquires server digest information which is previously stored therein. The program recording information, the program reproduction history information, and the server digest information are recorded on the hard disk (25) and kept under management therein. From such information, the digest information management section (27) generates predetermined user digest information, and, in accordance with this user digest information, provides the user with information concerning a digest reproduction of the recorded program.

    摘要翻译: 提供了一种再现装置,其获取由第三方创建的关于节目摘要的信息,并且基于该信息执行记录节目的摘要再现,同时考虑到诸如记录节目的未再现部分和 例如,用户可以花费观看的时间量。 从记录/再现处理部分(24),摘要信息管理部分(27)获取关于记录处理和再现处理的信息,并且基于这样的信息,产生预定的节目记录信息和预定的节目再现历史信息。 摘要信息管理部(27)从网络(30)的服务器(40)取得预先存储的服务器摘要信息。 节目记录信息,节目再现历史信息和服务器摘要信息被记录在硬盘25上并保持在其中。 从这些信息中,摘要信息管理部(27)生成预定的用户摘要信息,并且根据该用户摘要信息向用户提供关于记录节目的摘要再现的信息。

    Brushless DC motor without a position sensor
    24.
    发明授权
    Brushless DC motor without a position sensor 失效
    无位置传感器的无刷直流电机

    公开(公告)号:US5378976A

    公开(公告)日:1995-01-03

    申请号:US45104

    申请日:1993-04-12

    IPC分类号: H02P6/06 H02P6/20 H02P5/40

    CPC分类号: H02P6/187 H02P6/06 H02P6/20

    摘要: A brushless DC motor detects a positional relationship between the rotor and the stator windings in a short period of time when starting the motor and immediately switches the mode from a phase coincidence mode at the time of starting to a normal position detecting mode performed by counting output pulses in response to the rotational speed of the rotor. The motor detects a position of the rotor at an extremely high accuracy independently of the magnitude of the load even when the motor has already been subjected to the application of such a load at the time of starting. The motor is always driven at a high efficiency by applying a phase correction process so as to cause the phase of each of the voltages respectively induced in the stator windings to coincide with the corresponding one of the driving currents respectively outputted to the stator windings when the motor is being rotated normally.

    摘要翻译: 无刷直流电动机在起动电动机的短时间内检测转子和定子绕组之间的位置关系,并且在开始时立即将模式从相位一致模式切换到通过计数输出执行的正常位置检测模式 脉冲响应于转子的转速。 即使电动机在启动时已经施加了这样的负载,电动机也可以独立于负载的大小而非常高的精度地检测转子的位置。 通过施加相位校正处理来始终以高效率驱动电动机,以使分别感应在定子绕组中的每个电压的相位与分别输出到定子绕组的相应的一个驱动电流相一致 电机正常旋转

    Speed controller of motor
    25.
    发明授权
    Speed controller of motor 失效
    电机转速控制器

    公开(公告)号:US5377295A

    公开(公告)日:1994-12-27

    申请号:US785331

    申请日:1991-11-01

    IPC分类号: H02P23/00 H02P5/00

    CPC分类号: H02P23/16 Y10S388/902

    摘要: Disclosed is a speed controller of a motor which comprises a rotation sensor for generating an A.C. signal having a period in accordance with a rotating speed of a motor; speed detection device for effecting detection operations a plurality of times per round of the motor by the A.C. signal of the rotation sensor; compensation device for generating a control signal on the basis of a detection signal of the speed detection device; and driving device for driving the motor in accordance with the control signal of the compensation device; wherein the compensation device includes rotation error detection device for obtaining a rotation error responsive to the detection signal of the speed detection device; memory device for storing a memory value; memory output value generation device for generating a memory output value by the use of the memory value of the memory device; filter device for obtaining a calculation error from the rotation error; renewing and storing device for renewing and storing substantially sequentially the memory value of the memory device by a renewed value corresponding to a value obtained by calculating and synthesizing the calculation error and the memory output value whenever the speed detection device effects Q times detection operations; and control signal generation device for generating a control signal responsive to the rotation error of the memory output value.

    摘要翻译: 公开了一种电动机的速度控制器,其包括用于产生具有根据电动机的转速的周期的交流信号的旋转传感器; 速度检测装置,用于通过旋转传感器的交流信号来实现每一周电动机的多次检测操作; 补偿装置,用于根据速度检测装置的检测信号产生控制信号; 以及用于根据补偿装置的控制信号驱动马达的驱动装置; 其中所述补偿装置包括响应于所述速度检测装置的检测信号而获得旋转误差的旋转误差检测装置; 用于存储存储器值的存储器件; 存储器输出值生成装置,用于通过使用存储器件的存储器值来产生存储器输出值; 用于从旋转误差获得计算误差的过滤装置; 更新和存储装置,用于当速度检测装置执行Q次检测操作时,基本顺序地更新和存储与存储装置的存储器值相对应的更新值,该值对应于通过计算和合成计算误差和存储器输出值而获得的值; 以及响应于存储器输出值的旋转误差产生控制信号的控制信号产生装置。

    Control system with improved robustness to disturbances
    26.
    发明授权
    Control system with improved robustness to disturbances 失效
    控制系统具有改善的扰动鲁棒性

    公开(公告)号:US4933834A

    公开(公告)日:1990-06-12

    申请号:US182892

    申请日:1988-04-18

    IPC分类号: H02P6/08 H02P23/00

    CPC分类号: H02P23/0077 H02P6/08

    摘要: A control system has a detecting block for obtaining a detected signal corresponding to a controlled variable of a controlled system, and a controlling block for supplying the controlled system with a control signal according to the detected signal. The controlling block includes an error signal producing block for producing an error signal from the detected signal at intervals of a detecting period of time, a memorizing block for storing a plurality of memorized values corresponding to the error signal, and a control signal producing block for producing the control signal by mixing the error signal with one or more of the memorized values. The memorizing block renews the memorized values sequentially and periodically at intervals of a renewing cycle period of time proportional to the detecting period, each with a mixed value computed from the error signal and one or more of the memorized values having been renewed at intervals of L renewing cycle periods, where L is an integer at least equal to 2. The controlling block also includes an operation selecting block for selecting a control operation, and a position detecting block for detecting a physical movement of the controlled system. The position detecting block obtains a stored position of the memorized value corresponding to a physical position of the controlled system so as to utilize the memorized values promptly and correctly when the operation selecting block selects the control operation using the memorizing block.

    Transmission apparatus and reception apparatus
    27.
    发明授权
    Transmission apparatus and reception apparatus 有权
    发送装置和接收装置

    公开(公告)号:US07689163B2

    公开(公告)日:2010-03-30

    申请号:US11319058

    申请日:2005-12-28

    IPC分类号: H04H40/00

    摘要: Via a mobile communication network, a transmission apparatus receives position information representing a current position of a reception apparatus. Based on the received position information, the transmission apparatus generates notice data indicating that it is necessary to correct preprogrammed program information identifying a program which has been preprogrammed for viewing or preprogrammed for recording and being generated at the reception apparatus, and transmits the generated notice data to the reception apparatus. Accordingly, a transmission apparatus is provided which generates information that allows preprogramming of a broadcast program for viewing or recording to be properly performed at the reception apparatus side, or which generates a correct broadcast program table, and transmits the generated information or program table to the reception apparatus.

    摘要翻译: 通过移动通信网络,发送装置接收表示接收装置的当前位置的位置信息。 基于所接收的位置信息,发送装置生成指示需要校正预先编程的程序的预编程程序信息的通知数据,或者被预编程用于记录并在接收装置中生成的程序,并且发送生成的通知数据 到接收装置。 因此,提供了一种发送装置,其产生允许对在接收装置侧正确执行观看或记录的广播节目进行预编程或者生成正确的广播节目表的信息,并将生成的信息或节目表发送到 接收设备。

    Broadcast data receiving device and method for receiving a plurality of multimedia data
    28.
    发明授权
    Broadcast data receiving device and method for receiving a plurality of multimedia data 有权
    广播数据接收装置和接收多个多媒体数据的方法

    公开(公告)号:US07503051B1

    公开(公告)日:2009-03-10

    申请号:US09590075

    申请日:2000-06-09

    摘要: A data distribution system is provided which generates outputs attribute data about multimedia data in advance and broadcasts the output attribute data together with the multimedia data so that the receiving terminal can grasp the outlines of the entire multimedia data and improve the visibility. A data broadcasting device (1) generates output attribute data about multimedia data in a data analyzing portion (13). The output attribute data exists alone or is embedded in the multimedia data. The multimedia data and the output attribute data are encoded in a protocol encoder (14) and broadcast from a transmitter (15). A receiving terminal device (2) receives the broadcast data in a tuner (21) and obtains the multimedia data and output attribute data in a tuner (21). When a data display portion (26) displays the obtained multimedia data, the output attribute data is referred to and information related to the multimedia data is displayed together with the multimedia data. A data analyzing portion (24) analyzes the multimedia data and extracts the output attribute data embedded therein.

    摘要翻译: 提供了一种数据分配系统,其预先生成关于多媒体数据的输出属性数据,并与多媒体数据一起广播输出属性数据,使得接收终端能够掌握整个多媒体数据的轮廓并提高可视性。 数据广播装置(1)在数据分析部(13)中生成关于多媒体数据的输出属性数据。 输出属性数据单独存在或嵌入在多媒体数据中。 多媒体数据和输出属性数据被编码在协议编码器(14)中并从发射机(15)广播。 接收终端装置(2)在调谐器(21)中接收广播数据,并获取多媒体数据并在调谐器(21)中输出属性数据。 当数据显示部分(26)显示所获得的多媒体数据时,参考输出属性数据,并且与多媒体数据一起显示与多媒体数据相关的信息。 数据分析部分(24)分析多媒体数据并提取其中嵌入的输出属性数据。

    Optical disc tracking control device, tracking control method, and tracking control program
    29.
    发明授权
    Optical disc tracking control device, tracking control method, and tracking control program 失效
    光盘跟踪控制装置,跟踪控制方法和跟踪控制程序

    公开(公告)号:US07420889B2

    公开(公告)日:2008-09-02

    申请号:US10528795

    申请日:2003-10-08

    IPC分类号: G11B7/00

    摘要: A tracking control apparatus for stable tracking lead-in of an optical disc which has wobble grooves as tracks, including: a signal detection unit that detects tracking error and wobble signals from an optical spot; a speed detection unit that calculates a relative moving speed between the optical spot and the tracks; a polarity judgment unit that judges that the optical spot is on a land if a wobble signal amplitude value is equal to or lower than a predetermined value in the vicinity of a zero-cross point; a moving direction judgment unit that, when the relative moving speed is within a predetermined range and the optical spot is on a land, judges a moving direction of the optical spot from a rise/decay direction of the tracking error signal; and a control unit that performs a tracking lead-in by reducing the moving speed, based on the moving speed and moving direction.

    摘要翻译: 一种用于具有摆动槽作为轨道的光盘的稳定跟踪导入的跟踪控制装置,包括:信号检测单元,其从光点检测跟踪误差和摆动信号; 速度检测单元,其计算光点和轨道之间的相对移动速度; 如果摆动信号振幅值在零交叉点附近等于或低于预定值,则判断光点在平台上的极性判断单元; 移动方向判断单元,当所述相对移动速度在预定范围内并且所述光点在平台上时,从所述跟踪误差信号的上升/下降方向判断所述光点的移动方向; 以及控制单元,其基于移动速度和移动方向,通过降低移动速度来执行跟踪导入。

    Semiconductor memory
    30.
    发明授权
    Semiconductor memory 失效
    半导体存储器

    公开(公告)号:US07337976B2

    公开(公告)日:2008-03-04

    申请号:US10580466

    申请日:2005-03-31

    IPC分类号: G06K19/06

    摘要: The object of the present invention is to provide a semiconductor memory which executes executing multiple application programs and duplicating important data from one application program into another application program in security. An IC card (200) is one example of the semiconductor memory of the present invention, and executes executing multiple application programs. The IC card (200) includes: a memory area (331) for storing data relating to a library APL (301); a memory area (332) for storing data relating to a public pool APL (302); a security level setting unit (603) which identifies respective security levels of the library APL (301) and the public pool APL (302) for the data relating to these application programs, based on a criterion for identifying the security level of an application program for the data relating to it; and a data operation unit (608) which duplicates data A stored in the memory area (331) and stores the duplicated data A into the memory area (332), without taking the data A outside of the IC card (200), in the case where the relationship between the two security levels identified by the security level setting unit (603) meets a predetermined condition.

    摘要翻译: 本发明的目的是提供一种执行多个应用程序并将重要数据从一个应用程序复制到另一应用程序中的半导体存储器。 IC卡(200)是本发明的半导体存储器的一个例子,执行多个应用程序。 IC卡(200)包括:用于存储与库APL(301)有关的数据的存储区域(331); 用于存储与公共池APL相关的数据的存储区域(332); 基于用于识别应用程序的安全级别的标准,识别用于与这些应用程序相关的数据的库APL(301)和公共池APL(302)的各个安全级别的安全级别设置单元(603) 用于与之相关的数据; 以及数据操作单元(608),其将存储在存储区域(331)中的数据A复制并将复制数据A存储到存储区域(332)中,而不在IC卡(200)外部接收数据A,在 由安全等级设定部603识别出的两个安全等级之间的关系满足预定条件的情况。