公开(公告)号：US20070016339A1

公开(公告)日：2007-01-18

申请号：US11478939

申请日：2006-06-30

Applicant: John Patchell

Inventor： John Patchell

IPC: G05D1/00

CPC classification number: G01P3/68 ,  G01S11/12 ,  G01S13/536 ,  G06T7/20

Abstract: A method of distinguishing, from a moving platform, stationary objects from moving objects. The method includes using a first detector mounted to the moving platform to obtain at least a first reading from a target area, advancing the moving platform relative to the target area and using a second detector mounted to said moving platform to obtain at least a second reading from said target area. Then, the method includes comparing said first and second readings for at least two different time intervals to distinguish moving objects from stationary objects.

Abstract translation: 从移动平台将静止物体与运动物体区分开的方法。 该方法包括使用安装到移动平台的第一检测器来从目标区域获得至少第一读数，使移动平台相对于目标区域前进，并使用安装到所述移动平台的第二检测器来获得至少第二读数 从所述目标区域。 然后，该方法包括将至少两个不同时间间隔的所述第一和第二读数进行比较，以区分移动物体与静止物体。

公开(公告)号：US20070189349A1

公开(公告)日：2007-08-16

申请号：US11656931

申请日：2007-01-23

Applicant: John Patchell ,  Brian Kelly ,  James O'Gorman

Inventor： John Patchell ,  Brian Kelly ,  James O'Gorman

IPC: H01S5/00

CPC classification number: H01S5/12 ,  H01S5/028 ,  H01S5/0654 ,  H01S5/1228

Abstract: A laser comprising a lasing cavity, having a lasing medium and primary optical feedback means in the form of a facet at either end of the cavity is described. The laser includes secondary optical feedback means in the form of one or more effective refractive index perturbations in the lasing cavity with at least one of the facets configured to preferentially reflects a specific wavelength or band of wavelengths. A method of manufacturing such a laser is also described as is a method of suppressing side modes in a lasing device.

Abstract translation: 描述了包括激光腔的激光器，其具有激光介质和在腔的任一端处具有小面形式的主光学反馈装置。 激光器包括激光腔中一个或多个有效折射率扰动形式的二次光学反馈装置，其中至少一个面被配置为优先反射特定的波长或波长带。 制造这种激光器的方法也被描述为抑制激光装置中的侧面模式的方法。

公开(公告)号：US20070211775A1

公开(公告)日：2007-09-13

申请号：US11328517

申请日：2006-01-09

Applicant: John Patchell ,  Brian Kelly ,  James O'Gorman

Inventor： John Patchell ,  Brian Kelly ,  James O'Gorman

IPC: H01S5/00 ,  H01S3/04

CPC classification number: H01S5/065 ,  H01S5/0656 ,  H01S5/1017 ,  H01S5/1021 ,  H01S5/2231

Abstract: Disclosed is a laser (10) comprising a lasing cavity with a lasing medium and primary optical feedback means in the form of a facet (17) at either end of the cavity, the laser cavity defining a longitudinally extending optical path; and secondary optical feedback means formed by a plurality of refractive index perturbations (16, 22) in the laser cavity, each perturbation defining two interfaces (20, 21); characterised in that, for at least one perturbation, only one of the two interfaces contributes to optical feedback along the optical path. The present invention relaxes the lithographic tolerances for making single longitudinal mode devices and improves performance characteristics.

Abstract translation: 公开了一种激光器（10），其包括具有激光介质的激光腔和在空腔的任一端处具有小面（17）形式的主光学反馈装置，激光腔限定纵向延伸的光路; 以及由所述激光腔中的多个折射率扰动（16,22）形成的二次光反馈装置，每个扰动限定两个接口（20,21）; 其特征在于，对于至少一个扰动，两个界面中只有一个有助于沿光路的光学反馈。 本发明放宽了用于制造单个纵向模式装置的光刻公差，并提高了性能特征。

公开(公告)号：US20060164240A1

公开(公告)日：2006-07-27

申请号：US10521203

申请日：2003-07-11

Applicant: John Patchell

Inventor： John Patchell

IPC: G08B13/18 ,  G08B23/00 ,  G08B21/00

CPC classification number: G08B13/248 ,  E05G5/003 ,  G01V3/12 ,  G07C9/00 ,  G07C9/00309 ,  G08B13/24

Abstract: A device for detecting humans includes a radio frequency transmitter for generating a signal in a frequency range in which human bodies absorb RF radiation. A radio frequency receiver is spaced relative to the radio frequency transmitter for receiving a portion of the signal. A human passageway is provided between the transmitter and receiver. The receiver includes a detector responsive to a change in the received portion of the signal for determining the passing by of a human. The detector is responsive to an amplitude and/or phase change in the received portion of the signal. A building access security system or people counting system would include a plurality of devices set up in adjacent lanes. The RF detection system may be augmented with the addition of an IR detection beam system, distance sensors and/or a video camera system. The video camera system may include stereo video.

Abstract translation: 用于检测人的装置包括用于在人体吸收RF辐射的频率范围内产生信号的射频发射器。 无线电频率接收机相对于射频发射器间隔开以接收信号的一部分。 在发射机和接收机之间提供人通道。 接收机包括响应于接收到的信号部分的改变以确定人的通过的检测器。 检测器响应于信号的接收部分中的幅度和/或相位变化。 建筑物访问安全系统或人员计数系统将包括在相邻车道中设置的多个设备。 可以通过添加IR检测光束系统，距离传感器和/或摄像机系统来增加RF检测系统。 摄像机系统可以包括立体声视频。

公开(公告)号：US20050122076A1

公开(公告)日：2005-06-09

申请号：US10957580

申请日：2004-10-05

Applicant: John Patchell ,  Bernd Pottner

Inventor： John Patchell ,  Bernd Pottner

IPC: E05F15/00 ,  E06B11/08 ,  H02P1/00

CPC classification number: E05F15/40 ,  E05Y2900/40 ,  E06B11/085

Abstract: An obstacle detection method and system for a barrier closure system comprising a sensor for measuring a predetermined parameter as it varies during a closure of a barrier. Memory stores the measured parameter to establish a first parameter profile and a threshold value associated therewith. A detection module compares a current value of the predetermined parameter to a corresponding barrier position of the first parameter profile and if the current value differs by more than a threshold value sets an obstacle detection state. Conveniently the profile is recalibrated to compensate for changes in the barrier closure system such as wear, and environmental conditions that may vary over time. Preferably the sensor includes a capacitance component.

Abstract translation: 一种用于障碍物闭合系统的障碍物检测方法和系统，包括用于在屏障闭合期间测量其变化的预定参数的传感器。 存储器存储测量参数以建立第一参数轮廓和与其相关联的阈值。 检测模块将预定参数的当前值与第一参数轮廓的对应障碍位置进行比较，并且如果当前值相差超过阈值，则设置障碍物检测状态。 方便地，轮廓被重新校准以补偿阻挡物闭合系统的变化，例如磨损和随时间变化的环境条件。 优选地，传感器包括电容部件。