公开(公告)号：US20180245908A1

公开(公告)日：2018-08-30

申请号：US15960079

申请日：2018-04-23

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01B11/04 ,  G01N15/14 ,  G01P15/00 ,  G01P3/36

CPC classification number: G01B11/043 ,  G01N15/1459 ,  G01N2015/1447 ,  G01N2015/1493 ,  G01P3/36 ,  G01P15/00

Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.

公开(公告)号：US10260858B2

公开(公告)日：2019-04-16

申请号：US15960079

申请日：2018-04-23

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01C3/08 ,  G01B11/04 ,  G01P3/36 ,  G01P15/00 ,  G01N15/14

Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.

公开(公告)号：US20150276486A1

公开(公告)日：2015-10-01

申请号：US14181571

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01J3/51

CPC classification number: G01J3/51 ,  G01N15/1429 ,  G01N15/1434 ,  G01N15/1459 ,  G01N15/147 ,  G01N15/1475 ,  G01N2015/1006 ,  G01N2015/1447 ,  G01N2015/1472 ,  G01N2015/1477

Abstract: A system is configured to determine a color distribution of an object moving along a flow direction relative to a spatial filter. The light emanating from the object is time modulated according to the mask features of the spatial filter. First and second detectors are arranged to sense the modulated light. The first detector senses light having a first wavelength spectrum and generates a first electrical output signal in response to the sensed light. The second detector light senses light having a second wavelength spectrum and generates a second electrical output signal in response to the sensed light. Signals from the first and second detectors include information about color distribution of the object.

Abstract translation: 系统被配置为确定沿着相对于空间滤波器的流动方向移动的对象的颜色分布。 从物体发出的光根据空间滤光片的掩模特征进行时间调制。 布置第一和第二检测器以感测调制的光。 第一检测器感测具有第一波长光谱的光，并且响应于感测到的光而产生第一电输出信号。 第二检测器光感测具有第二波长谱的光，并且响应于感测到的光而产生第二电输出信号。 来自第一和第二检测器的信号包括关于对象的颜色分布的信息。

公开(公告)号：US20150233704A1

公开(公告)日：2015-08-20

申请号：US14181524

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01B11/04 ,  G01B11/06

CPC classification number: G01B11/046 ,  G01B11/0691

Abstract: A device includes a spatial filter arranged in a Cartesian coordinate system having orthogonal x, y, and z axes. The spatial filter has mask features that are more light transmissive and mask features that are less light transmissive. The mask features are arranged along the x-axis in the flow direction of a flow path. A detector is positioned to detect light emanating from at least one object in the flow path, the object having a width along the y-axis, a thickness along the z-axis, and a length along the x-axis. Light emanating from the object is time modulated according to the mask features as the object moves along the flow path. The detector is configured to generate a time-varying electrical signal in response to the detected light that includes information about the width or thickness of the object.

Abstract translation: 装置包括布置在具有正交x，y和z轴的笛卡尔坐标系中的空间滤波器。 空间滤波器具有更透光的掩模特征和较少透光的掩模特征。 掩模特征沿着流动路径的流动方向沿x轴布置。 定位检测器以检测从流动路径中的至少一个物体发出的光，该物体具有沿着y轴的宽度，沿z轴的厚度和沿着x轴的长度。 当物体沿着流动路径移动时，根据掩模特征对从物体发出的光进行时间调制。 检测器被配置为响应于检测到的光产生包括关于物体的宽度或厚度的信息的时变电信号。

公开(公告)号：US10451482B2

公开(公告)日：2019-10-22

申请号：US14181571

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01J3/51 ,  G01N15/14 ,  G01N15/10

Abstract: A system is configured to determine a color distribution of an object moving along a flow direction relative to a spatial filter. The light emanating from the object is time modulated according to the mask features of the spatial filter. First and second detectors are arranged to sense the modulated light. The first detector senses light having a first wavelength spectrum and generates a first electrical output signal in response to the sensed light. The second detector light senses light having a second wavelength spectrum and generates a second electrical output signal in response to the sensed light. Signals from the first and second detectors include information about color distribution of the object.

公开(公告)号：US09952033B2

公开(公告)日：2018-04-24

申请号：US14181530

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01C3/08 ,  G01B11/04 ,  G01P3/36 ,  G01P15/00 ,  G01N15/14

CPC classification number: G01B11/043 ,  G01N15/1459 ,  G01N2015/1447 ,  G01N2015/1493 ,  G01P3/36 ,  G01P15/00

Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.

公开(公告)号：US20150276387A1

公开(公告)日：2015-10-01

申请号：US14181560

申请日：2014-02-14

Applicant: PALO ALTO RESEARCH CENTER INCORPORATED

Inventor： Doron Kletter ,  Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Bowen Cheng ,  Michael I. Recht

IPC: G01B11/22

CPC classification number: G01N15/1459 ,  G01N15/1429 ,  G01N2015/0038 ,  G01N2015/0053 ,  G01N2015/1006 ,  G01N2021/8592

Abstract: Approaches for determining object position in a flow path are disclosed. A system includes a spatial filter having a length disposed along a longitudinal axis of the flow path and a width along a lateral axis of the flow path. The spatial filter has mask features configured to modulate light. Light emanating from objects moving along the flow path is detected. The detected light has a component along a detection axis that makes a non-zero angle with respect to the longitudinal and lateral axes. An electrical output signal that includes information about the trajectory depth of the object is generated in response to the detected light.

Abstract translation: 公开了用于确定流路中的物体位置的方法。 一种系统包括具有沿流动路径的纵向轴线设置的长度和沿着流动路径的横向轴线的宽度的空间过滤器。 空间滤波器具有配置为调制光的掩模特征。 检测从沿着流路移动的物体发出的光。 检测到的光具有沿着检测轴的分量，其相对于纵轴和横轴成非零角度。 响应于检测到的光而产生包括关于物体的轨迹深度的信息的电输出信号。

公开(公告)号：US09528925B2

公开(公告)日：2016-12-27

申请号：US14181560

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Doron Kletter ,  Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Bowen Cheng ,  Michael I. Recht

IPC: G01B11/22 ,  G01N15/14 ,  G01N21/85 ,  G01N15/00 ,  G01N15/10

CPC classification number: G01N15/1459 ,  G01N15/1429 ,  G01N2015/0038 ,  G01N2015/0053 ,  G01N2015/1006 ,  G01N2021/8592

Abstract: Approaches for determining object position in a flow path are disclosed. A system includes a spatial filter having a length disposed along a longitudinal axis of the flow path and a width along a lateral axis of the flow path. The spatial filter has mask features configured to modulate light. Light emanating from objects moving along the flow path is detected. The detected light has a component along a detection axis that makes a non-zero angle with respect to the longitudinal and lateral axes. An electrical output signal that includes information about the trajectory depth of the object is generated in response to the detected light.

Abstract translation: 公开了用于确定流路中的物体位置的方法。 一种系统包括具有沿流动路径的纵向轴线设置的长度和沿着流动路径的横向轴线的宽度的空间过滤器。 空间滤波器具有配置为调制光的掩模特征。 检测从沿着流路移动的物体发出的光。 检测到的光具有沿着检测轴的分量，其相对于纵轴和横轴成非零角度。 响应于检测到的光而产生包括关于物体的轨迹深度的信息的电输出信号。

公开(公告)号：US09207066B2

公开(公告)日：2015-12-08

申请号：US14181524

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01B11/04 ,  G01B11/06

CPC classification number: G01B11/046 ,  G01B11/0691

Abstract: A device includes a spatial filter arranged in a Cartesian coordinate system having orthogonal x, y, and z axes. The spatial filter has mask features that are more light transmissive and mask features that are less light transmissive. The mask features are arranged along the x-axis in the flow direction of a flow path. A detector is positioned to detect light emanating from at least one object in the flow path, the object having a width along the y-axis, a thickness along the z-axis, and a length along the x-axis. Light emanating from the object is time modulated according to the mask features as the object moves along the flow path. The detector is configured to generate a time-varying electrical signal in response to the detected light that includes information about the width or thickness of the object.

Abstract translation: 装置包括布置在具有正交x，y和z轴的笛卡尔坐标系中的空间滤波器。 空间滤波器具有更透光的掩模特征和较少透光的掩模特征。 掩模特征沿着流动路径的流动方向沿x轴布置。 定位检测器以检测从流动路径中的至少一个物体发出的光，该物体具有沿着y轴的宽度，沿z轴的厚度和沿着x轴的长度。 当物体沿着流动路径移动时，根据掩模特征对从物体发出的光进行时间调制。 检测器被配置为响应于检测到的光产生包括关于物体的宽度或厚度的信息的时变电信号。

公开(公告)号：US20150233703A1

公开(公告)日：2015-08-20

申请号：US14181530

申请日：2014-02-14

Applicant: Palo Alto Research Center Incorporated

Inventor： Joerg Martini ,  Marshall W. Bern ,  Noble M. Johnson ,  Peter Kiesel ,  Doron Kletter ,  Bowen Cheng ,  Michael I. Recht

IPC: G01B11/04 ,  G01P3/36 ,  G01P15/00

CPC classification number: G01B11/043 ,  G01N15/1459 ,  G01N2015/1447 ,  G01N2015/1493 ,  G01P3/36 ,  G01P15/00

Abstract: Spatially modulated light emanating from an object moving along a flow path is used to determine various object characteristics including object length along the flow direction. Light emanating from at least one object moving along in a flow path along a flow direction of a spatial filter is sensed. The intensity of the sensed light is time modulated according to features of the spatial filter. A time varying electrical signal is generated which includes a plurality of pulses in response to the sensed light. Pulse widths of at least some of the pulses are measured at a fraction of a local extremum of the pulses. The length of the object along the flow direction is determined based on the measured pulse widths.

Abstract translation: 使用从沿着流路移动的物体发出的空间调制光来确定包括沿着流动方向的物体长度的各种物体特性。 感测从沿着空间滤波器的流动方向在流动路径中移动的至少一个物体发出的光。 感测光的强度根据空间滤波器的特征进行时间调制。 产生包括响应于所感测的光的多个脉冲的时变电信号。 至少部分脉冲的脉冲宽度在脉冲的局部极值的一部分被测量。 沿着流动方向的物体的长度是基于所测量的脉冲宽度确定的。