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1. 发明申请

WO2005091067A2 CAMERA AUTOFOCUS 审中-公开
公开(公告)号：WO2005091067A2
公开(公告)日：2005-09-29
申请号：PCT/GB2005/000964
申请日：2005-03-14
申请人： 1... LIMITED , HOOLEY, Anthony , RICHARDS, David, Charles, William , ALLAN, James , LEEDHAM, Robert, John , SHEPHERD, Mark, Richard
发明人： HOOLEY, Anthony , RICHARDS, David, Charles, William , ALLAN, James , LEEDHAM, Robert, John , SHEPHERD, Mark, Richard
IPC分类号： G03B13/36
CPC分类号： G02B7/08 , G03B13/36 , H04N5/23212
摘要： A camera comprises an image sensor arranged to generate an image signal, and a lens arrangement, which focuses an image onto the image sensor, the focus being variable in accordance with a control signal applied thereto. In the case that a piezoelectric actuator experiencing hysteresis is used to drive movement of the lens arrangement to vary the focus of the image, autofocusing is achieved by applying a control signal to the piezoelectric actuator with a value at an extreme of a predetermined range and subsequently changing the control signal monotonically across the predetermined range to determine a position at which the focus quality is at an acceptable level. Thus, this position may be returned to despite the hysteresis. In the case that an encoder is arranged to encode the image signal from the image sensor into an encoded signal compressed form, the encoder is operated in two modes in which different spatial frequency components are encoded preferentially, the amount of data in one of the modes being used as the basis for autofocusing. To assist in autofocusing the position of the lens arrangement may be determined using a light source and an optical element which is fixed to and movable with the lens arrangement, the optical element being arranged so that movement of the lens arrangement causes variation in the light incident on the image sensor.
摘要翻译：相机包括被配置为产生图像信号的图像传感器和将图像聚焦到图像传感器上的透镜装置，所述焦点可根据施加到其上的控制信号而变化。在使用经历滞后的压电致动器来驱动透镜装置的移动以改变图像的焦点的情况下，通过将控制信号施加到具有预定范围的极端处的值的压电致动器来实现自动聚焦在预定范围内单调地改变控制信号，以确定聚焦质量处于可接受水平的位置。因此，尽管有迟滞，仍可能返回这个位置。在编码器被配置为将来自图像传感器的图像信号编码成编码信号压缩形式的情况下，编码器以两种模式操作，其中不同的空间频率分量被优先编码，在一种模式中的数据量被用作自动对焦的基础。为了帮助自动对焦，可以使用光源和固定到透镜装置并可移动的光学元件来确定透镜装置的位置，光学元件布置成使得透镜装置的运动导致光入射的变化在图像传感器上。

2. 发明申请

WO2010049689A3 CONTROL OF A SHAPE MEMORY ALLOY ACTUATION ARRANGEMENT 审中-公开
标题翻译：形状记忆合金执行安排的控制
公开(公告)号：WO2010049689A3
公开(公告)日：2011-02-24
申请号：PCT/GB2009002570
申请日：2009-10-29
申请人： CAMBRIDGE MECHATRONICS LTD , GREGORY THOMAS MATTHEW , LEEDHAM ROBERT JOHN , RICHARDS DAVID CHARLES WILLIAM , TOPLISS RICHARD
发明人： GREGORY THOMAS MATTHEW , LEEDHAM ROBERT JOHN , RICHARDS DAVID CHARLES WILLIAM , TOPLISS RICHARD
IPC分类号： F03G7/06 , G03B3/10 , H04N5/225
CPC分类号： F03G7/065 , G03B3/10 , H04N5/2254 , H04N5/2257
摘要： An SMA actuation apparatus comprises: an SMA actuator arranged to drive movement of a movable element; a current supply supplying a drive current; a detection circuit detecting a measure of the resistance of the SMA actuator; and a control unit operative to generate a closed-loop control signal supplied to current supply for controlling the power of the drive current to drive the resistance of the SMA actuator to a target value. The control unit derives: an estimate of a characteristic temperature of the SMA actuation apparatus on the basis of the supplied power, using a thermal model; and a resistance offset on the basis thereof. The closed-loop control signal is generated on the basis of the error between the measure of the resistance of the SMA actuator and the target value of the resistance of the SMA actuator, adjusted by the resistance offset to compensate for variations in resistance.
摘要翻译： SMA致动装置包括：SMA致动器，被布置成驱动可移动元件的运动; 提供驱动电流的电流源; 检测所述SMA致动器的电阻的测量电路; 以及控制单元，用于产生提供给电流源的闭环控制信号，以控制驱动电流的功率以将SMA致动器的电阻驱动到目标值。控制单元使用热模型来估计基于所提供的功率的SMA致动装置的特征温度; 和基于其的电阻偏移。基于SMA致动器的电阻的测量与SMA致动器的电阻的目标值之间的误差产生闭环控制信号，由电阻偏移调整以补偿电阻的变化。

3. 发明申请

WO2010049689A2 CONTROL OF A SHAPE MEMORY ALLOY ACTUATION ARRANGEMENT 审中-公开
标题翻译：形状记忆合金执行安排的控制
公开(公告)号：WO2010049689A2
公开(公告)日：2010-05-06
申请号：PCT/GB2009/002570
申请日：2009-10-29
申请人： CAMBRIDGE MECHATRONICS LIMITED , GREGORY, Thomas, Matthew , LEEDHAM, Robert, John , RICHARDS, David, Charles, William , TOPLISS, Richard
发明人： GREGORY, Thomas, Matthew , LEEDHAM, Robert, John , RICHARDS, David, Charles, William , TOPLISS, Richard
IPC分类号： F03G7/06
CPC分类号： F03G7/065 , G03B3/10 , H04N5/2254 , H04N5/2257
摘要： An SMA actuation apparatus comprises: an SMA actuator arranged to drive movement of a movable element; a current supply supplying a drive current; a detection circuit detecting a measure of the resistance of the SMA actuator; and a control unit operative to generate a closed-loop control signal supplied to current supply for controlling the power of the drive current to drive the resistance of the SMA actuator to a target value. The control unit derives: an estimate of a characteristic temperature of the SMA actuation apparatus on the basis of the supplied power, using a thermal model; and a resistance offset on the basis thereof. The closed-loop control signal is generated on the basis of the error between the measure of the resistance of the SMA actuator and the target value of the resistance of the SMA actuator, adjusted by the resistance offset to compensate for variations in resistance.
摘要翻译： SMA致动装置包括：SMA致动器，被布置成驱动可移动元件的运动; 提供驱动电流的电流源; 检测所述SMA致动器的电阻的测量电路; 以及控制单元，用于产生提供给电流源的闭环控制信号，以控制驱动电流的功率以将SMA致动器的电阻驱动到目标值。控制单元使用热模型来估计基于所提供的功率的SMA致动装置的特征温度; 和基于其的电阻偏移。基于SMA致动器的电阻的测量与SMA致动器的电阻的目标值之间的误差产生闭环控制信号，由电阻偏移调整以补偿电阻的变化。

4. 发明申请

WO2005091067A3 CAMERA AUTOFOCUS 审中-公开
公开(公告)号：WO2005091067A3
公开(公告)日：2006-02-02
申请号：PCT/GB2005000964
申请日：2005-03-14
申请人： 1 LTD , HOOLEY ANTHONY , RICHARDS DAVID CHARLES WILLIAM , ALLAN JAMES , LEEDHAM ROBERT JOHN , SHEPHERD MARK RICHARD
发明人： HOOLEY ANTHONY , RICHARDS DAVID CHARLES WILLIAM , ALLAN JAMES , LEEDHAM ROBERT JOHN , SHEPHERD MARK RICHARD
IPC分类号： G02B7/08 , G02B7/09 , G02B7/28 , G03B13/36
CPC分类号： G02B7/08 , G03B13/36 , H04N5/23212
摘要： A camera comprises an image sensor arranged to generate an image signal, and a lens arrangement, which focuses an image onto the image sensor, the focus being variable in accordance with a control signal applied thereto. In the case that a piezoelectric actuator experiencing hysteresis is used to drive movement of the lens arrangement to vary the focus of the image, autofocusing is achieved by applying a control signal to the piezoelectric actuator with a value at an extreme of a predetermined range and subsequently changing the control signal monotonically across the predetermined range to determine a position at which the focus quality is at an acceptable level. Thus, this position may be returned to despite the hysteresis. In the case that an encoder is arranged to encode the image signal from the image sensor into an encoded signal compressed form, the encoder is operated in two modes in which different spatial frequency components are encoded preferentially, the amount of data in one of the modes being used as the basis for autofocusing. To assist in autofocusing the position of the lens arrangement may be determined using a light source and an optical element which is fixed to and movable with the lens arrangement, the optical element being arranged so that movement of the lens arrangement causes variation in the light incident on the image sensor.
摘要翻译：相机包括被配置为产生图像信号的图像传感器和将图像聚焦到图像传感器上的透镜装置，所述焦点可根据施加到其上的控制信号而变化。在使用经历滞后的压电致动器来驱动透镜装置的移动以改变图像的焦点的情况下，通过将控制信号施加到具有预定范围的极端处的值的压电致动器来实现自动聚焦在预定范围内单调地改变控制信号，以确定聚焦质量处于可接受水平的位置。因此，尽管有迟滞，仍可能返回这个位置。在编码器被配置为将来自图像传感器的图像信号编码成编码信号压缩形式的情况下，编码器以两种模式操作，其中不同的空间频率分量被优先编码，在一种模式中的数据量被用作自动对焦的基础。为了帮助自动对焦，可以使用光源和固定到透镜装置并可移动的光学元件来确定透镜装置的位置，光学元件布置成使得透镜装置的运动导致光入射的变化在图像传感器上。

5. 发明申请

WO2004066673A1 SET-UP METHOD FOR ARRAY-TYPE SOUND SYSTEM 审中-公开
标题翻译：阵列系统的设置方法
公开(公告)号：WO2004066673A1
公开(公告)日：2004-08-05
申请号：PCT/GB2004/000160
申请日：2004-01-19
申请人： 1... LIMITED , HOOLEY, Anthony , TROUGHTON, Paul, Thomas , RICHARDS, David, Charles, William , TURNER, David, Christopher
发明人： HOOLEY, Anthony , TROUGHTON, Paul, Thomas , RICHARDS, David, Charles, William , TURNER, David, Christopher
IPC分类号： H04S7/00
CPC分类号： H04S7/301 , H04R1/403 , H04R3/12 , H04R2203/12 , H04R2205/022
摘要： There is disclosed a method for setting up a Sound Projector such that it is suitable for a variety of functions, including surround sound. The method allows a semi-automatic or automatic set-up to be accomplished whereby the Sound Projector emits test signals and these are received by one or more microphones in order to detect the position and angles of the major reflecting surfaces in the room. In a preferred embodiment, the room is scanned by a moving directional sound beam and the first reflection of said sound beam is detected at a microphone in order to determine the distance of the reflective surfaces from the Sound Projector for all or most possible angels of sound beams.
摘要翻译：公开了一种设置声音投影仪的方法，使其适合于包括环绕声在内的各种功能。该方法允许实现半自动或自动设置，由此声音投影仪发射测试信号，并且这些信号由一个或多个麦克风接收，以便检测房间中主要反射表面的位置和角度。在优选实施例中，通过移动的定向声束扫描房间，并且在麦克风处检测所述声束的第一反射，以便为所有或最可能的声音天使确定反射表面与声音投影仪的距离梁。

6. 发明申请

WO2009071898A3 CONTROL OF A SHAPE MEMORY ALLOY ACTUATION ARRANGEMENT 审中-公开
标题翻译：一种形状记忆合金驱动装置的控制
公开(公告)号：WO2009071898A3
公开(公告)日：2009-12-10
申请号：PCT/GB2008004015
申请日：2008-12-03
申请人： CAMBRIDGE MECHATRONICS LTD , TOPLISS RICHARD , LEEDHAM ROBERT JOHN , RICHARDS DAVID CHARLES WILLIAM , GREGORY THOMAS MATTHEW
发明人： TOPLISS RICHARD , LEEDHAM ROBERT JOHN , RICHARDS DAVID CHARLES WILLIAM , GREGORY THOMAS MATTHEW
IPC分类号： F03G7/06 , G03B13/34
CPC分类号： F03G7/065 , G03B3/10 , G03B5/00
摘要： An SMA actuation arrangement comprises: an SMA actuator arranged on contraction caused by heating to drive movement of a movable element relative to a support structure; a current source operative to supply drive current through the SMA actuator to heat the SMA actuator; and a detector circuit operative to detect a measure of the resistance of the SMA actuator. Whilst detecting a measure of the resistance of the SMA actuator and controlling the drive current on the basis of the measure of the resistance of the SMA actuator; there is derived a measure of an electrical characteristic of the SMA actuator that is representative of the ambient temperature. Whilst applying closed-loop control an offset is added to the control signal which reduces the steady-state value of an error between the measure of the resistance of the SMA actuator and a target value. Whilst applying open-loop control, the control signal is generated taking into account the electrical characteristics of the SMA actuator measured during a calibration stage.
摘要翻译： SMA致动装置包括：SMA致动器，其布置在由加热引起的收缩上以驱动可移动元件相对于支撑结构的移动; 电流源，用于提供驱动电流通过SMA致动器以加热SMA致动器; 以及检测器电路，用于检测SMA致动器的电阻的测量值。在检测SMA致动器的电阻测量值并根据SMA致动器的电阻测量值控制驱动电流的同时，得出代表环境温度的SMA致动器的电特性的量度。在应用闭环控制时，将偏移量加到控制信号上，从而降低SMA致动器的电阻测量值与目标值之间的误差的稳态值。在应用开环控制时，考虑到校准阶段测量的SMA执行器的电气特性，生成控制信号。

7. 发明申请

WO2004073077A1 METHOD AND APPARATUS FOR MANUFACTURING CERAMIC DEVICES 审中-公开
标题翻译：制造陶瓷器件的方法和装置
公开(公告)号：WO2004073077A1
公开(公告)日：2004-08-26
申请号：PCT/GB2004/000485
申请日：2004-02-09
申请人： 1...LIMITED , TOPLISS, Richard , RICHARDS, David, Charles, William
发明人： TOPLISS, Richard , RICHARDS, David, Charles, William
IPC分类号： H01L41/24
CPC分类号： H01L41/43 , H01L41/33 , Y10T428/21
摘要： An apparatus for manufacturing a ceramic device from tape (21) in a green state comprises a cylindrical rod (23) as a first forming element, a first clamping system (241) for fixing a first end of the tape (21) with respect to the cylindrical rod (23) and a first mechanism (20, 231) for winding the tape (21) around the cylindrical rod (23) to preform the tape (21). The apparatus further comprises a second forming element (33), a second clamping system (351, 352) for fixing at least one end of the pre-formed tape (21) with respect to the second forming element (33), and a second mechanism (331, 351) which winds the pre-formed tape (21) around the second forming element (33).
摘要翻译：用于从绿色状态的带（21）制造陶瓷器件的设备包括：作为第一形成元件的圆柱形杆（23）;用于将带（21）的第一端相对于第一形成元件固定的第一夹紧系统（241）所述圆柱形杆（23）和用于将所述带（21）围绕所述圆柱形杆（23）缠绕以预成型带（21）的第一机构（20,231）。该装置还包括第二成形元件（33），用于相对于第二成形元件（33）固定预形成带（21）的至少一端的第二夹紧系统（351,352），以及第二机构（331,351）围绕第二成形元件（33）缠绕预成形带（21）。

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