利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.014 秒)

    AN OPTICAL PROBE HAVING A POSITION MEASURING SYSTEM
    2.
    发明公开
    AN OPTICAL PROBE HAVING A POSITION MEASURING SYSTEM 有权
    带位置测量系统光学探头

    公开(公告)号：EP2341813A1

    公开(公告)日：2011-07-13

    申请号：EP09744471.5

    申请日：2009-10-21

    申请人： Koninklijke Philips Electronics N.V.

    发明人： HEZEMANS, Cornelius, A. ,  HENDRIKS, Bernardus, H., W. ,  BIERHOFF, Waltherus, C., J. ,  BRAUN, Augustinus, L. ,  DESJARDINS, Adrien, E.

    IPC分类号： A61B1/00 ,  A61B1/07 ,  A61B5/00 ,  A61B19/00

    CPC分类号： A61B1/00188 ,  A61B1/00096 ,  A61B1/00163 ,  A61B1/00165 ,  A61B5/0062 ,  A61B5/0084 ,  A61B5/061 ,  A61B5/062 ,  A61B5/065 ,  A61B34/73 ,  A61B90/361 ,  A61B2034/2051

    摘要： This invention relates to an optical probe (200) and an optical imaging system, including an optical guide (201) having a proximal end and a distal end, an actuation means having driving coils (204) and a magnet, with of which being attached to the optical guide. By supplying a driving current through the driving coils a magnetic flux is generated which interacts with the magnet forming a driving force acting at on the optical guide causing a displacement of the distal end of the optical guide. A position measuring including a position measuring coil (205) is used for monitoring the position of the optical guide, where the internal arrangement of the position measuring coil and the driving coils is such that said displacement of the distal end of the optical guide causes a change in the internal arrangement. A power supply supplies an additional high frequency alternating current (AC) through the driving coils which causes an induced voltage in the position measuring coil and thus generates a magnetic coupling between the position measuring coil and the driving coils. A position measuring means measures the displacement of the distal end of the optical guide by means of measuring the induced voltage resulting in when the internal arrangement changes. This induced voltage change being indicative for the position of the distal end.

    DISC DRIVE APPARATUS
    3.
    发明授权
    DISC DRIVE APPARATUS 有权

    公开(公告)号：EP1527445B1

    公开(公告)日：2008-08-20

    申请号：EP03740991.9

    申请日：2003-07-10

    申请人： Koninklijke Philips Electronics N.V.

    发明人： HEZEMANS, Cornelius, A.

    IPC分类号： G11B7/085

    CPC分类号： G11B7/08582 ,  G11B7/08505

    摘要： A disc drive apparatus (1) comprises a sledge (10) radially displaceable with respect to an apparatus frame (3); a platform (20) radially displaceable with respect to said sledge (10); a controllable sledge actuator (11) for moving the sledge (10) radially with respect to said apparatus frame (3); a control unit (90) for controlling said sledge actuator (11); a sledge stop detection means capable of detecting that the moving sledge (10) comes to a standstill. Said sledge stop detection means comprises radial displacement detection means for detecting a radial displacement of said platform (20) with respect to said sledge (10). Said control unit (90) receives an input signal (SXD) from said sledge stop detection means and is responsive to said input signal to switch off said sledge actuator (11) when said input signal (SXD) indicates that said moving sledge (10) has come to a standstill.

    METHOD OF RECOVERING ENERGY FROM THE TURNTABLE MOTOR IN AN OPTICAL DISC DRIVE AND OPTICAL DEVICE
    5.
    发明公开
    METHOD OF RECOVERING ENERGY FROM THE TURNTABLE MOTOR IN AN OPTICAL DISC DRIVE AND OPTICAL DEVICE 有权
    中回收能量的轮毂电机的光盘驱动器和光盘装置

    公开(公告)号：EP1908068A2

    公开(公告)日：2008-04-09

    申请号：EP06766011.8

    申请日：2006-07-06

    申请人： Koninklijke Philips Electronics N.V.

    发明人： LOOIJMANS, Hendrikus, A., J. ,  HEZEMANS, Cornelius, A. ,  VAN BIJNEN, Joop

    IPC分类号： G11B19/20 ,  G11B19/00 ,  G11B19/26 ,  G11B19/22

    CPC分类号： G11B19/20 ,  G11B19/00 ,  G11B19/22 ,  G11B19/26

    摘要： The present invention relates to a method of recovering energy from the turntable motor (12) in an optical disc drive comprising a power supply and a circuitry (10) that is capable of selectively feeding a current from the power supply into the motor in a first state and from the motor into the power supply in a second state, the method comprising the steps of: decelerating the motor, during decelerating the motor, repeatedly calculating a ratio between a duration of the first state and a duration of the second state in dependence on an angular velocity of the motor, such that a current integrated over the whole decelerating process is fed from the motor into the power supply, and after calculating the ratio, selecting the duration of the first state and the duration of the second state in accordance with the calculated ratio. The present invention further relates to an optical device.

    METHOD OF LIMITING A POWER SUPPLY CURRENT AND OPTICAL DEVICE
    6.
    发明公开
    METHOD OF LIMITING A POWER SUPPLY CURRENT AND OPTICAL DEVICE 审中-公开
    程序的电源电流和光学设备的控制

    公开(公告)号：EP1866920A1

    公开(公告)日：2007-12-19

    申请号：EP06711109.6

    申请日：2006-03-16

    申请人： Koninklijke Philips Electronics N.V.

    发明人： LOOIJMANS, Hendrikus, A., J. ,  HEZEMANS, Cornelius, A.

    IPC分类号： G11B19/28

    CPC分类号： G11B19/28 ,  Y10T307/414

    摘要： The present invention relates to a method of limiting a power supply current in a system comprising a power supply (10), a motor (12) operating at different speeds, a driver (14) for driving the motor and a controller (16) for controlling the driver, the method comprising the steps of: specifying a first value that is related to a maximum power supply current (IPSmax); determining a second value that is related to an electromagnetic force- dependent voltage (VEMF) of the motor; determining a desired third value (Cdes) that is related to a desired motor current (IMdes); determining a first boundary value (a) and a second boundary value (b) for the third value, taking into account the first value and the second value; comparing the boundary values (a) and (b) to the third value (Cdes); and setting the third value in dependence on the result of the comparing step

    CONTROL SYSTEM, DRIVING SYSTEM AND CONTROL METHOD, APPARATUS INCLUDING THE DRIVING SYSTEM
    7.
    发明公开
    CONTROL SYSTEM, DRIVING SYSTEM AND CONTROL METHOD, APPARATUS INCLUDING THE DRIVING SYSTEM 有权
    控制系统和驱动系统的控制方法; 装置驱动系统包括

    公开(公告)号：EP1040395A1

    公开(公告)日：2000-10-04

    申请号：EP99934614.1

    申请日：1999-07-07

    申请人： Koninklijke Philips Electronics N.V.

    发明人： AKKERMANS, Antonius, H., M. ,  HEZEMANS, Cornelius, A.

    IPC分类号： G05B19/21

    CPC分类号： G05B19/21

    摘要： A control system in accordance with the invention comprises error signal generating means (23) for generating an error signal (Xe) in response to a reference signal (Xr) and a first and a second position signal (Xpa, Xpb resp.). The reference signal is a measure of the desired value of a position of a first part (5) of a drive system with respect to a second part (0) of the drive system. The position signals (Xpa, Xpb) are a measure of the actual value of said position. The error signal (Xe) is a measure of the difference between the desired value and the actual value of the position. The control system further comprises energizing means (24) for energizing a motor (1) which is to be controlled by the control system in dependence on the error signal (Xe). The control system of the invention is characterized in that the error signal generating means (23) are adapted to generate weighting factors (Xwa, Xwb) from the reference signal (Xr), for weighting the position signals with the weighting factors and determining a sum (Xel) of the weighted position signals. The control system can be used in a recording/playback device for positioning a read/write head.

    OPTICAL ILLUMINATION APPARATUS AND METHOD
    9.
    发明公开
    OPTICAL ILLUMINATION APPARATUS AND METHOD 审中-公开
    光导照明装置及其方法

    公开(公告)号：EP2283343A1

    公开(公告)日：2011-02-16

    申请号：EP09754241.9

    申请日：2009-05-18

    申请人： Koninklijke Philips Electronics N.V.

    发明人： VAN DIJK, Erik, M., H., P. ,  HEZEMANS, Cornelius, A.

    IPC分类号： G01N21/64 ,  G02B21/00

    CPC分类号： G01N21/6452 ,  G01N2021/6463 ,  G01N2201/1053 ,  G02B21/0032

    摘要： An optical system for detecting light from a 2D area of a sample (36) comprises a collection lens (34) for collecting light from a collection region of the sample. A light detector (44) is positionally fixed with respect to the sample, and a reflector arrangement (61) directs collected light to the detector. The reflector arrangement comprises movable components and the collection lens (34) is movable relative to the sample. The collection lens and the movable components are configurable to define different collection regions, and the movement of the components effects a direction of the light from the collection region to a substantially unchanged area of the light detector (44). This arrangement avoids the need for a bulky detector in order to detect signals from a 2D sample area formed by scanning across the sample. This enables a more compact, cheaper and simpler solution.