公开(公告)号：US07529723B2

公开(公告)日：2009-05-05

申请号：US10735962

申请日：2003-12-15

申请人： Mark Anthony Howard ,  Ian Emery Smith ,  Trevor Frederick Smith

发明人： Mark Anthony Howard ,  Ian Emery Smith ,  Trevor Frederick Smith

IPC分类号： G06F17/30

CPC分类号： G06F17/30067 ,  Y10S707/99931 ,  Y10S707/99933

摘要： An Internet-scale file sharing system includes a client-side file sharing application that allows file-sharing users to identify files to share and transmit metadata corresponding to those files to a metadata repository. A server-side application operating on the metadata repository tracks metadata received from associated file-sharing users, as well as metadata from other affiliated metadata repositories. Each metadata repository acts as a search engine for any querying users and can provide search results based on locally stored metadata alone. Each metadata repository may additionally choose to locally-store popular files from an associated file-sharing user so as to alleviate transmission burdens on that file-sharing user. Associated metadata repositories each periodically synchronize their stored metadata so that all metadata repositories may generate similar search results. In such manner, file-sharing queries need only be performed by the metadata repository receiving the query, and not by all associated metadata repositories.

摘要翻译： 互联网规模的文件共享系统包括客户端文件共享应用程序，其允许文件共享用户识别文件以共享和发送对应于这些文件的元数据到元数据存储库。 在元数据存储库上操作的服务器端应用程序跟踪从相关联的文件共享用户接收的元数据，以及来自其他附属元数据存储库的元数据。 每个元数据存储库充当任何查询用户的搜索引擎，并且可以仅基于本地存储的元数据提供搜索结果。 每个元数据存储库还可以选择从相关联的文件共享用户本地存储流行文件，以便减轻该文件共享用户的传输负担。 关联的元数据存储库每个都定期同步其存储的元数据，以便所有元数据存储库都可以生成类似的搜索结果。 以这种方式，文件共享查询只需要由接收查询的元数据存储库执行，而不是由所有关联的元数据存储库执行。

公开(公告)号：US07554527B2

公开(公告)日：2009-06-30

申请号：US10503362

申请日：2003-02-05

申请人： Mark Anthony Howard ,  Colin Stuart Sills ,  Victoria Ann Clark

发明人： Mark Anthony Howard ,  Colin Stuart Sills ,  Victoria Ann Clark

IPC分类号： G09G5/08

CPC分类号： G06F3/03543 ,  G01D5/243 ,  G05G2009/04755

摘要： There is described an apparatus which monitors the orientation of or the rotational movement of a substantially spherical body. The apparatus comprises a substantially spherical body with at least one resonant circuit fixed thereto. A transmit aerial generates an alternating magnetic field in the region of space including the spherical body which induces an electric signal in the or each resonant circuit, and a receive aerial receives an induced sense signal generated in response to said induced electric signal in the or each resonant circuit. The electromagnetic coupling between the transmit aerial and the receive aerial via the or each resonant circuit varies in accordance with the orientation of the spherical body so that the induced sense signal in the receive aerial varies in accordance with the orientation of the spherical body.

摘要翻译： 描述了一种监测基本上球形体的取向或旋转运动的装置。 该装置包括具有固定到其上的至少一个谐振电路的基本上球形的主体。 发射天线在包括球体的空间区域中产生交变磁场，该球体在该谐振电路或每个谐振电路中引起电信号，并且接收天线接收响应于所述或每个谐振电路中的所述感应电信号而产生的感应感测信号 谐振电路。 通过或每个谐振电路的发射天线和接收天线之间的电磁耦合根据球体的取向而变化，使得接收天线中的感应信号根据球体的取向而变化。

公开(公告)号：US07514919B2

公开(公告)日：2009-04-07

申请号：US10531591

申请日：2003-10-15

申请人： David Alun James ,  Darran Kreit ,  Colin Stuart Sills ,  Mark Anthony Howard

发明人： David Alun James ,  Darran Kreit ,  Colin Stuart Sills ,  Mark Anthony Howard

IPC分类号： G01N27/72 ,  G01R33/12 ,  H01F5/00

CPC分类号： G01D5/204 ,  G01D5/2073

摘要： A sensor for sensing a parameter such as position, comprises: (i) an excitation winding for example coils (7, 9) in quadrature; (ii) a signal generator (41, 42, 43) operable to generate an excitation signals and arranged to apply the generated excitation signal to the excitation winding; (iii) a sense coil (11) that can be electromagnetically coupled to the excitation winding such that, in response to the excitation signal being applied to the excitation winding by the signal generator, a periodic electric signal is generated in the sense coil that is indicative of the value of the parameter to be measured by the sensor; and (iv) a signal processor (108) operable to process the periodic electric signal generated in the sensor winding to determine a value representative of the parameter being measured. The signal processor may be arranged to generate a second signal (f1) at a frequency slightly different from that of the excitation signal, and to mix the second signal with the signal received from the sense coil to generate a third signal having a frequency component (f0−f1) equal to the difference between the frequency of the excitation signal and that of the second signal. The processing unit then determines the parameter from the phase of the third signal.

摘要翻译： 用于感测诸如位置的参数的传感器包括：（i）例如正交的线圈（7,9）的励磁绕组; （ii）可操作以产生激励信号并被布置成将所产生的激励信号施加到激励绕组的信号发生器（41,42,43）; （iii）感测线圈（11），其可以与激励绕组电磁耦合，使得响应于由信号发生器施加到激励绕组的激励信号，在感测线圈中产生周期性电信号，该感应线圈 表示由传感器测量的参数的值; 和（iv）信号处理器（108），其可操作以处理在所述传感器绕组中产生的所述周期性电信号，以确定表示所测量的参数的值。 信号处理器可以被布置成以与激励信号的频率稍微不同的频率产生第二信号（f1），并且将第二信号与从感测线圈接收的信号混合以产生具有频率分量（ f0-f1）等于激励信号的频率与第二信号的频率之差。 然后，处理单元从第三信号的相位确定参数。

公开(公告)号：US07298137B2

公开(公告)日：2007-11-20

申请号：US10531499

申请日：2003-10-16

申请人： Mark Anthony Howard ,  Colin Stuart Sills ,  Darran Kreit ,  David Alun James

发明人： Mark Anthony Howard ,  Colin Stuart Sills ,  Darran Kreit ,  David Alun James

IPC分类号： G01B7/14

CPC分类号： G01D5/2086 ,  G01D5/2093

摘要： There is described an inductive position sensor in which a signal generator applies a excitation signal to an excitation winding formed on a first member, the excitation winding being electromagnetically coupled to at least two resonant circuits formed on a second member which are spaced from each other along a measurement path. The excitation windings are shaped so that the electromagnetic coupling between the exciting winding and each of the resonators varies along the measurement path. In this way, by applying an excitation signal to the excitation winding, respective different signals are induced in the resonators which depend upon the relative position of the first and second members.

摘要翻译： 描述了一种感应位置传感器，其中信号发生器向形成在第一构件上的激励绕组施加激励信号，激励绕组电磁耦合到形成在第二构件上的至少两个谐振电路，该谐振电路彼此间隔开 测量路径。 激励绕组的形状使得励磁绕组和每个谐振器之间的电磁耦合沿测量路径变化。 以这种方式，通过向激励绕组施加激励信号，在谐振器中感应出相应的不同信号，这取决于第一和第二部件的相对位置。

公开(公告)号：US07208945B2

公开(公告)日：2007-04-24

申请号：US10492646

申请日：2002-03-14

申请人： Ross Peter Jones ,  Richard Alan Doyle ,  Mark Anthony Howard ,  David Alun James ,  Darran Kriet ,  Colin Stuart Sills

发明人： Ross Peter Jones ,  Richard Alan Doyle ,  Mark Anthony Howard ,  David Alun James ,  Darran Kriet ,  Colin Stuart Sills

IPC分类号： G01R33/12 ,  G01N27/72

CPC分类号： G01D5/2073 ,  D06F39/003 ,  D06F39/087

摘要： There is described a sensor comprising an excitation winding, a signal generator operable to generate an excitation signal and arranged to apply the generated excitation signal to the excitation winding, a sensor winding electromagnetically coupled to the excitation winding and a signal processor operable to process a periodic electric signal generated in the sensor winding when the excitation signal is applied to the excitation winding by the signal generator to determine a value of a sensed parameter. The excitation signal comprises a periodic carrier signal having a first frequency modulated by a periodic modulation signal having a second frequency, the first frequency being greater than the second frequency. In this way, the sensor is well suited to using digital processing techniques both to generate the excitation signal and to process the signal induced in the sensor windings. In an embodiment, the sensor is used to detect the relative position of two members. In other embodiments, the sensor is used to detect environmental factors such as temperature and humidity.

摘要翻译： 描述了一种传感器，其包括激励绕组，信号发生器，其可操作以产生激励信号并被布置成将产生的激励信号施加到激励绕组，电磁耦合到激励绕组的传感器绕组和可操作以处理周期性的信号处理器 当激励信号由信号发生器施加到激励绕组以确定感测参数的值时，在传感器绕组中产生的电信号。 激励信号包括具有由具有第二频率的周期性调制信号调制的第一频率的周期性载波信号，第一频率大于第二频率。 以这种方式，传感器非常适合于使用数字处理技术来产生激励信号并处理在传感器绕组中感应的信号。 在一个实施例中，传感器用于检测两个构件的相对位置。 在其他实施例中，传感器用于检测诸如温度和湿度的环境因素。

公开(公告)号：US10323959B2

公开(公告)日：2019-06-18

申请号：US15528570

申请日：2015-01-29

申请人： Mark Anthony Howard ,  Darran Kreit

发明人： Mark Anthony Howard ,  Darran Kreit

IPC分类号： G01D5/20 ,  G01B7/02 ,  B62D1/185

摘要： An inductive position detector with a first and second body, at least one of said bodies being displaceable relative to the other along a measurement path wherein said first body comprises one or more antenna windings forming a first arrangement of windings and said second body comprises a passive resonant circuit incorporating one or more target windings in series with a capacitor; said circuit covering at least in part said first arrangement; characterized in that said first body comprises an additional winding arrangement disposed along at least part of said measurement path; said additional winding arrangement being spaced from said first arrangement of windings; and said second body comprises an additional winding arrangement covering at least in part said additional winding arrangement of said first body.

公开(公告)号：US20150260549A1

公开(公告)日：2015-09-17

申请号：US14433252

申请日：2013-10-02

申请人： Darran KREIT ,  Mark Anthony HOWARD

发明人： Mark Anthony Howard

IPC分类号： G01D5/20

CPC分类号： G01D5/2066 ,  G01D5/147

摘要： An inductive detector for measuring the position of a first body relative to a second body along a measurement path comprises: a first body which comprises a substantially planar surface and a passive electromagnetic target; a second body which comprises a substantially planar surface facing the planar surface of the first body and an arrangement of laminar windings; said first and second body being configured such that the electromagnetic influence of the first body on the second body varies according to the position of the first body relative to the second body along the measurement path; wherein said passive electro-magnetic target comprises a first portion incorporating said planar surface and a second portion with a lower thickness than said first portion; whereby the second portion incorporates an insulating aperture.

摘要翻译： 用于沿着测量路径测量第一主体相对于第二主体的位置的感应检测器包括：第一主体，其包括基本平坦的表面和无源电磁目标; 第二主体，其包括面向所述第一主体的平坦表面的大致平坦的表面和层状绕组的布置; 所述第一和第二主体被配置为使得第一主体在第二主体上的电磁影响根据第一主体相对于第二主体沿测量路径的位置而变化; 其中所述无源电磁目标包括结合所述平面的第一部分和具有比所述第一部分低的厚度的第二部分; 由此第二部分包括绝缘孔。

公开(公告)号：US08020453B2

公开(公告)日：2011-09-20

申请号：US11721769

申请日：2005-12-14

申请人： Darran Kreit ,  Mark Anthony Howard

发明人： Darran Kreit ,  Mark Anthony Howard

IPC分类号： G01L3/00

CPC分类号： G01D5/2073

摘要： A system to measure the displacement of relatively moveable bodies along an axis comprising: a resonant electrical intermediate device further comprising an inductor, whose width varies along the displacement axis, and a capacitor in electrical series which co-operates with an antenna comprising transmit and receive windings whose mutual inductance varies according to the position of the electrical intermediate device relative to the antenna.

摘要翻译： 一种用于测量相对可移动体沿着轴的位移的系统，包括：谐振电中间装置，其还包括电感器，所述电感器的宽度沿位移轴线变化;电容器，其电气系列与包括发射和接收的天线 互感器根据电气中间装置相对于天线的位置而变化的绕组。

公开(公告)号：US20100045360A1

公开(公告)日：2010-02-25

申请号：US11721724

申请日：2005-12-14

申请人： Mark Anthony Howard ,  Darran Kreit

发明人： Mark Anthony Howard ,  Darran Kreit

IPC分类号： H03K17/97 ,  G01D5/22

CPC分类号： G01D5/2013 ,  G01D5/202

摘要： A device for measuring the position of a first body relative to a second body comprising: a first body which further comprises an electrical intermediate device; a second body which further comprises at least two inductors energised with an alternating current and at least one of which is formed by a planar spiral winding on a printed circuit board normal to the measurement axis and attached to the second body; arranged such that displacement of the electrical intermediate device causes a change in inductance of the planar spiral winding and whereby measurement of the ratio of the inductances indicates the position of the first body relative to the second.

摘要翻译： 一种用于测量第一主体相对于第二主体的位置的装置，包括：第一主体，其还包括电中间装置; 第二主体，其还包括至少两个由交流电激励的电感器，并且其中至少一个电感器由垂直于测量轴线的印刷电路板上的平面螺旋绕组形成并附接到第二主体; 布置成使得电中间装置的位移导致平面螺旋绕组的电感的变化，由此电感比的测量指示第一主体相对于第二主体的位置。

公开(公告)号：US20090160789A1

公开(公告)日：2009-06-25

申请号：US12093251

申请日：2007-06-22

申请人： Darran Kreit ,  Mark Anthony Howard

发明人： Darran Kreit ,  Mark Anthony Howard

IPC分类号： G06F3/041

CPC分类号： G06F3/046 ,  H03K17/97 ,  H03K2217/96038

摘要： An apparatus for user interfaces is described to measure inductively the deformation of a body (1) comprising at least two laminar conductive elements (3, 4), at least one of which is an AC energized inductor (4), wherein deformation causes relative axial movement between the at least two laminar elements (3, 4) and the maximum deformation distance is limited to prevent damage.

摘要翻译： 描述了一种用于用户界面的装置，以感应地测量包括至少两个层状导电元件（3,4）的主体（1）的变形，其中至少一个是交流激励电感器（4），其中变形引起相对轴向 在至少两个层状元件（3,4）之间的移动和最大变形距离被限制以防止损坏。