公开(公告)号：US08847145B2

公开(公告)日：2014-09-30

申请号：US13547669

申请日：2012-07-12

Applicant: Peter Masa

Inventor： Peter Masa

IPC: G01D5/34 ,  G01D5/38 ,  G01D5/28

CPC classification number: G01D5/285 ,  G01D5/38

Abstract: Method for working out the angular position of a rotating element, using at least one light source emitting a light beam in the direction of a fixed sensor and computing elements for processing an output signal of the sensor, includes: arranging the light source with respect to the rotating element and the sensor so as to induce an interaction between the light beam and the sensor which depends on the angular position of the rotating shaft, arranging on the path of the light beam, in a fixed position with respect to the sensor, a perforated mask which presents a repetitive pattern of perforations, detecting shadows generated by the mask on the sensor, processing the output signal of the sensor for determining the position of the shadows on the sensor, and computing the angular position of the rotating element using the position of the shadows.

Abstract translation: 使用在固定传感器的方向上发射光束的至少一个光源和用于处理传感器的输出信号的计算元件来处理旋转元件的角位置的方法包括：将光源相对于 旋转元件和传感器，以便引起光束和传感器之间的相互作用，其取决于旋转轴的角度位置，其布置在相对于传感器的固定位置的光束的路径上， 穿孔掩模，其呈现重复的穿孔图案，检测由传感器上的掩模产生的阴影，处理用于确定传感器上的阴影位置的传感器的输出信号，以及使用该位置计算旋转元件的角位置 的阴影。

公开(公告)号：US20130015338A1

公开(公告)日：2013-01-17

申请号：US13547669

申请日：2012-07-12

Applicant: Peter MASA

Inventor： Peter MASA

IPC: G01D5/34

CPC classification number: G01D5/285 ,  G01D5/38

Abstract: Method for working out the angular position of a rotating element, using at least one light source emitting a light beam in the direction of a fixed sensor and computing elements for processing an output signal of the sensor, includes: arranging the light source with respect to the rotating element and the sensor so as to induce an interaction between the light beam and the sensor which depends on the angular position of the rotating shaft, arranging on the path of the light beam, in a fixed position with respect to the sensor, a perforated mask which presents a repetitive pattern of perforations, detecting shadows generated by the mask on the sensor, processing the output signal of the sensor for determining the position of the shadows on the sensor, and computing the angular position of the rotating element using the position of the shadows.

Abstract translation: 使用在固定传感器的方向上发射光束的至少一个光源和用于处理传感器的输出信号的计算元件来处理旋转元件的角位置的方法包括：将光源相对于 旋转元件和传感器，以便引起光束和传感器之间的相互作用，其取决于旋转轴的角度位置，其布置在相对于传感器的固定位置的光束的路径上， 穿孔掩模，其呈现重复的穿孔图案，检测由传感器上的掩模产生的阴影，处理用于确定传感器上的阴影位置的传感器的输出信号，以及使用该位置计算旋转元件的角位置 的阴影。

公开(公告)号：US20130015337A1

公开(公告)日：2013-01-17

申请号：US13547554

申请日：2012-07-12

Applicant: Peter MASA

Inventor： Peter MASA

IPC: G01D5/347

CPC classification number: G01D5/34792

Abstract: A method for working out the angular position of a rotating element, by using at least one fixed light source emitting a light beam in the direction of a fixed sensor, arranging the light source with respect to the rotating element and sensor to induce an interaction between the beam and sensor, and providing a value of the angular position dependent of the sensor's output signal. The method including: arranging on the path of the beam a code-disc presenting a two-dimensional pattern of transparent and opaque areas and an absolute code integral with the rotating element, using the image casted by the code-disc on the sensor for determining the eccentricity of the code-disc in dependence of the angular position of the rotating element, using the eccentricity for compensating the value of the computed angular position, and computing a corrected angular position of the rotating element.

Abstract translation: 一种用于通过使用在固定传感器的方向上发射光束的至少一个固定光源来设计旋转元件的角位置的方法，将光源相对于旋转元件和传感器布置以引起相互之间的相互作用 光束和传感器，并提供取决于传感器的输出信号的角位置的值。 该方法包括：使用由传感器上的代码盘投影的图像，在光束的路径上布置呈现透明和不透明区域的二维图案的代码盘和与旋转元件积分的绝对代码，用于确定 依赖于旋转元件的角位置的代码盘的偏心度，使用用于补偿计算出的角位置的值的偏心度，以及计算旋转元件的校正角位置。

公开(公告)号：US20120026321A1

公开(公告)日：2012-02-02

申请号：US13262663

申请日：2009-04-03

Applicant: David Hasler ,  Peter Masa ,  Pascal Heim ,  Edoardo Franzi

Inventor： David Hasler ,  Peter Masa ,  Pascal Heim ,  Edoardo Franzi

IPC: H04N7/18

CPC classification number: G01D5/34746 ,  G01D5/24438 ,  G01D5/24452 ,  G01D5/24476 ,  G01D5/2449 ,  G01D5/2495 ,  G01D5/34792 ,  H03M1/0678 ,  H03M1/202 ,  H03M1/282

Abstract: A one-dimension position measurement system includes: a first ruler having a first one-dimension binary code si applied thereon, a camera for acquiring a picture of a portion of the code si, the portion having a length of I bits, and some processing elements. Each codeword of length I of the one-dimension code si is unique within the whole code si A codeword ai is read from the acquired picture, and the processing elements are implemented for computing an absolute position p of the codeword ai of the code si from: (I). An adhoc interpolation method is used to obtain a precision way below the distance between two bits of the codewords. The code si may be applied on the ruler by using some geometric primitives, a geometric primitive for encoding a “1” being different from a geometric primitive for encoding a “0”, both having the same horizontal projection. The horizontal projection is then used for fine interpolation, achieving nanometre-scale resolution.

Abstract translation: 一维位置测量系统包括：具有施加在其上的第一一维二进制码si的第一标尺，用于获取码si的一部分的图像的相机，具有I比特长度的部分以及一些处理 元素。 一维码si的长度为I的每个码字在整个码si内是唯一的。从所获取的图像中读取码字ai，并且实现处理元件以计算码si的码字ai的绝对位置p ： （一世）。 使用自适应插值方法来获得低于码字的两位之间的距离的精确方式。 代码si可以通过使用一些几何图元应用于标尺上，几何图元用于编码“1”与用于编码“0”的几何基元不同的几何图元，两者具有相同的水平投影。 然后将水平投影用于精细插值，实现纳米级分辨率。

公开(公告)号：US06617994B1

公开(公告)日：2003-09-09

申请号：US09868612

申请日：2001-10-11

Applicant: Pascal Heim ,  Alessandro Mortara ,  Peter Masa ,  Friedrich Heitger

Inventor： Pascal Heim ,  Alessandro Mortara ,  Peter Masa ,  Friedrich Heitger

IPC: H03M112

CPC classification number: H03M1/361

Abstract: An electronic circuit for a capacitive flash analog to digital converter for converting the ratio of first and second analog signals into a digital code representation using an array of parallel capacitive comparator branches. Each branch computing one bit of the digital code simultaneously according to its array index. The first analog signal is applied as a voltage difference between first signal nodes comprising a first positive signal node and a first negative signal node. The second analog signal is, applied as a voltage difference between second signal nodes comprising a second positive signal node and a second negative signal node.

Abstract translation: 一种用于电容闪存模数转换器的电子电路，用于使用并联电容比较器分支阵列将第一和第二模拟信号的比率转换成数字码表示。 每个分支根据其数组索引同时计算一位数字代码。 第一模拟信号作为包括第一正信号节点和第一负信号节点的第一信号节点之间的电压差被施加。 第二模拟信号被施加为包括第二正信号节点和第二负信号节点的第二信号节点之间的电压差。

公开(公告)号：US06528783B1

公开(公告)日：2003-03-04

申请号：US09857175

申请日：2001-09-07

Applicant: Alessandro Mortara ,  Peter Masa ,  Pascal Heim ,  Friedrich Heitger

Inventor： Alessandro Mortara ,  Peter Masa ,  Pascal Heim ,  Friedrich Heitger

IPC: G01D534

CPC classification number: G01D5/24 ,  G06G7/22

Abstract: An electronic circuit for measuring the position of a spatially periodic intensity pattern of incident radiation includes an array of detectors (1); two or more correlator units (2, 3) each having arrays of capacitors (12, 13) connected to a buffer (14); and a phase angle computing unit (4). The pitch of the array of detectors (1) is smaller than the pitch of the incident intensity pattern so that the latter is oversampled, yielding high accuracy. The detector outputs (17) are weighted by respective fixed capacitance values (15, 16) which vary periodically along arrays of capacitors (12, 13), and a weighted sum of outputs for each correlator unit (2, 3) is output at its respective buffer (14). The capacitance values (15, 16) of respective correlator units (2, 3) are mutually offset by a predetermined phase shift. The analog computation using capacitor arrays (12, 13) is fast and energy efficient, and can be implemented as a VLSI circuit.

Abstract translation: 用于测量入射辐射的空间周期性强度图案的位置的电子电路包括检测器阵列（1）; 两个或更多个相关器单元（2,3），每个具有连接到缓冲器（14）的电容器阵列（12,13）; 和相角计算单元（4）。 检测器（1）阵列的间距小于入射强度图案的间距，使得后者被过采样，产生高精度。 检测器输出（17）由相应固定电容值（15,16）加权，固定电容值（15,16）沿着电容器阵列（12,13）周期性地变化，并且每个相关器单元（2,3）的输出的加权和输出 相应的缓冲器（14）。 各个相关器单元（2,3）的电容值（15,16）相互偏移预定的相移。 使用电容器阵列（12,13）的模拟计算是快速且高能效的，并且可以被实现为VLSI电路。

公开(公告)号：US09103661B2

公开(公告)日：2015-08-11

申请号：US13810455

申请日：2011-07-14

Applicant: Eric Grenet ,  Peter Masa ,  Edoardo Franzi ,  David Hasler

Inventor： Eric Grenet ,  Peter Masa ,  Edoardo Franzi ,  David Hasler

IPC: G01B11/14 ,  G01C3/08 ,  G01D5/34 ,  G01D5/38 ,  G01S1/70 ,  G01S3/781 ,  G01S3/783

CPC classification number: G01B11/14 ,  G01C3/085 ,  G01D5/34 ,  G01D5/38 ,  G01S1/70 ,  G01S3/781 ,  G01S3/7835

Abstract: A system measures the position of a light source in space using an imager and transparent surface with a pattern on top. The pattern consists of a repetitive pattern and a distinctive element. The system achieves sub-micron precision. It also handles the measurement of several light sources simultaneously, and the measurement of the position of a retroreflector instead of the light.

Abstract translation: 系统使用成像器和顶部具有图案的透明表面来测量空间中光源的位置。 该模式由重复模式和独特元素组成。 该系统达到亚微米精度。 它还可以同时处理多个光源的测量，以及后向反射器的位置的测量而不是光的测量。

公开(公告)号：US08698892B2

公开(公告)日：2014-04-15

申请号：US13262663

申请日：2009-04-03

Applicant: David Hasler ,  Peter Masa ,  Pascal Heim ,  Edoardo Franzi

Inventor： David Hasler ,  Peter Masa ,  Pascal Heim ,  Edoardo Franzi

IPC: H04N7/18 ,  G01D5/347 ,  G01D5/244 ,  G01D5/249

CPC classification number: G01D5/34746 ,  G01D5/24438 ,  G01D5/24452 ,  G01D5/24476 ,  G01D5/2449 ,  G01D5/2495 ,  G01D5/34792 ,  H03M1/0678 ,  H03M1/202 ,  H03M1/282

Abstract: A one-dimension position measurement system includes: a first ruler having a first one-dimension binary code si applied thereon, a camera for acquiring a picture of a portion of the code si, the portion having a length of I bits, and some processing elements. Each codeword of length I of the one-dimension code si is unique within the whole code si. A codeword ai is read from the acquired picture, and the processing elements are implemented for computing an absolute position p of the codeword ai of the code si from: (I). An ad-hoc interpolation method is used to obtain a precision way below the distance between two bits of the codewords. The code si may be applied on the ruler by using some geometric primitives, a geometric primitive for encoding a “1” being different from a geometric primitive for encoding a “0”, both having the same horizontal projection. The horizontal projection is then used for fine interpolation, achieving nanometer-scale resolution.

Abstract translation: 一维位置测量系统包括：具有施加在其上的第一一维二进制码si的第一标尺，用于获取码si的一部分的图像的照相机，具有I比特长度的部分以及一些处理 元素。 一维码si的长度为I的每个码字在整个码si内是唯一的。 从所获取的图像中读取码字ai，并且执行处理元件以从：（I）计算码si的码字ai的绝对位置p。 使用自组织插值方法来获得低于码字的两位之间的距离的精确方式。 代码si可以通过使用一些几何图元应用于标尺上，几何图元用于编码“1”与用于编码“0”的几何基元不同的几何图元，两者具有相同的水平投影。 然后将水平投影用于精细插值，实现纳米级分辨率。

公开(公告)号：US20130120763A1

公开(公告)日：2013-05-16

申请号：US13810455

申请日：2011-07-14

Applicant: Eric Grenet ,  Peter Masa ,  Edoardo Franzi ,  David Hasler

Inventor： Eric Grenet ,  Peter Masa ,  Edoardo Franzi ,  David Hasler

IPC: G01B11/14

CPC classification number: G01B11/14 ,  G01C3/085 ,  G01D5/34 ,  G01D5/38 ,  G01S1/70 ,  G01S3/781 ,  G01S3/7835

Abstract: A system measures the position of a light source in space using an imager and transparent surface with a pattern on top. The pattern consists of a repetitive pattern and a distinctive element. The system achieves sub-micron precision. It also handles the measurement of several light sources simultaneously, and the measurement of the position of a retroreflector instead of the light.

Abstract translation: 系统使用成像器和顶部具有图案的透明表面来测量空间中光源的位置。 该模式由重复模式和独特元素组成。 该系统达到亚微米精度。 它还可以同时处理多个光源的测量，以及后向反射器的位置的测量而不是光的测量。

公开(公告)号：US09035232B2

公开(公告)日：2015-05-19

申请号：US13547554

申请日：2012-07-12

Applicant: Peter Masa

Inventor： Peter Masa

IPC: G01D5/34 ,  G01D5/347

CPC classification number: G01D5/34792

Abstract: A method for working out the angular position of a rotating element, by using at least one fixed light source emitting a light beam in the direction of a fixed sensor, arranging the light source with respect to the rotating element and sensor to induce an interaction between the beam and sensor, and providing a value of the angular position dependent of the sensor's output signal. The method including: arranging on the path of the beam a code-disc presenting a two-dimensional pattern of transparent and opaque areas and an absolute code integral with the rotating element, using the image casted by the code-disc on the sensor for determining the eccentricity of the code-disc in dependence of the angular position of the rotating element, using the eccentricity for compensating the value of the computed angular position, and computing a corrected angular position of the rotating element.

Abstract translation: 一种用于通过使用在固定传感器的方向上发射光束的至少一个固定光源来设计旋转元件的角位置的方法，将光源相对于旋转元件和传感器布置以引起相互之间的相互作用 光束和传感器，并提供取决于传感器的输出信号的角位置的值。 该方法包括：使用由传感器上的代码盘投影的图像，在光束的路径上布置呈现透明和不透明区域的二维图案的代码盘和与旋转元件积分的绝对代码，用于确定 依赖于旋转元件的角位置的代码盘的偏心度，使用用于补偿计算出的角位置的值的偏心度，以及计算旋转元件的校正角位置。