公开(公告)号：US06635862B2

公开(公告)日：2003-10-21

申请号：US09912169

申请日：2001-07-24

Applicant: Boris Shteynberg ,  James A. Ashford

Inventor： Boris Shteynberg ,  James A. Ashford

IPC: H01J4014

CPC classification number: G01V8/20

Abstract: A mixed architecture light curtain system comprises a mix of flexibly and rigidly interconnected light curtain segments. For example, a number of light curtain segments may be rigidly interconnected in series at desired connection angles using one or more types of rigid connectors to form a set of rigidly connected segments. Another set of rigidly connected segments may be flexibly connected to this first set, or one or more individual segments may be flexibly connected in series with this first set. In general, a series of interconnected segments may be formed in any desired combination of rigidly and flexibly connected segments. In any such combination, differing types of rigid and flexible connectors may be used, such that rigidly and flexibly interconnected segments may be fixed at essentially any desired angle, offset, or relative spacing, allowing the mixed architecture light curtain to conform to complex and even disjointed protection zone shapes.

Abstract translation: 混合建筑光幕系统包括柔性和刚性互连的光幕段的混合。 例如，许多光幕段可以使用一种或多种类型的刚性连接器以期望的连接角度串联地刚性地互连以形成一组刚性连接的段。 另一组刚性连接的段可以柔性地连接到该第一组，或者一个或多个单独的段可以与该第一组串联地灵活地连接。 通常，一系列互连的段可以以任何期望的刚性和柔性连接段的组合形成。 在任何这样的组合中，可以使用不同类型的刚性和柔性连接器，使得刚性和柔性互连的段可以基本上固定在任何所需的角度，偏移或相对间隔上，从而允许混合的架构光幕符合复杂和均匀的 脱节保护区形状。

公开(公告)号：US06624751B2

公开(公告)日：2003-09-23

申请号：US09922829

申请日：2001-08-06

Applicant: Hermann Haberer ,  Volker Rohbeck

Inventor： Hermann Haberer ,  Volker Rohbeck

IPC: H01J4014

CPC classification number: G01V8/20

Abstract: A method for monitoring an entrance to a hazardous area comprising sensing a signal pattern generated by light barriers when an object passes the entrance and comparing the sensed signed pattern with at least one predetermined signal pattern. The object is admissible if the signal patterns are identical and under certain other conditions.

公开(公告)号：US06624406B1

公开(公告)日：2003-09-23

申请号：US09326252

申请日：1999-06-04

Applicant: Joseph P. Estrera ,  Michael J. Iosue ,  Timothy W. Sinor

Inventor： Joseph P. Estrera ,  Michael J. Iosue ,  Timothy W. Sinor

IPC: H01J4014

CPC classification number: H01J43/045 ,  H01J31/507 ,  H01J43/246 ,  H01J2231/5016

Abstract: The present invention comprises a method for detecting photons and generating a representation of an image. A photocathode receives photons from the image. The photocathode discharges electrons in response to the received photons. A microchannel plate is located no more than about 125 microns from the photocathode. The microchannel plate has an unfilmed input face and an output face. The microchannel plate receives the electrons from the photocathode and produces secondary emission electrons which are emitted from the output face. A screen receives the secondary electrons and displays a representation of the image.

Abstract translation: 本发明包括一种用于检测光子并产生图像的表示的方法。 光电阴极从图像接收光子。 光电阴极响应于所接收的光子而放电。 微通道板距离光电阴极不超过约125微米。 微通道板具有不合格的输入面和输出面。 微通道板从光电阴极接收电子并产生从输出面发射的二次发射电子。 屏幕接收二次电子并显示图像的表示。

公开(公告)号：US06603109B2

公开(公告)日：2003-08-05

申请号：US09994622

申请日：2001-11-28

Applicant: Philippe Pantigny ,  Arnaud LaFlaquire ,  Frédéric Rothan

Inventor： Philippe Pantigny ,  Arnaud LaFlaquire ,  Frédéric Rothan

IPC: H01J4014

CPC classification number: H04N5/374 ,  H04N5/357

Abstract: The invention relates to a circuit for reading charges comprising a capacitive means (C1, C2) with capacitance Ca to store charges and means of reading a voltage sampled at the terminals of the capacitive means. The capacitive means is built up from a first capacitive means (C1) and a second capacitive means (C2) with a capacitance Cb less than Ca. The read circuit comprises means of comparing the voltage read at the terminals of the capacitive means with a threshold value (Vthreshold) and means of controlling the transfer of charges stored in the first capacitive means to the second capacitive means when the voltage read at the terminals of the capacitive means exceeds the threshold value (Vthreshold). The invention is applicable to detection of radiation in the imagery field.

公开(公告)号：US06596979B2

公开(公告)日：2003-07-22

申请号：US10028812

申请日：2001-12-21

Applicant: Alpha Hou

Inventor： Alpha Hou

IPC: H01J4014

CPC classification number: H04N5/37206 ,  H04N5/3743

Abstract: An image sensor employing multiple arrays of photodetectors is disclosed. According to one aspect of the present invention, every two of three arrays are shielded with a non-transparent material. When charge signals are generated in the non-shielded array in response to light reflected from a scanning document illuminated by one of three colored lights, the charge signals are shifted to a next adjacent shielded array so that another set of charge signals can be generated under another one of the three colored lights. Essentially, the shielded arrays are used as buffers to separate the charge signals independently generated under three different colored lights. Subsequently, the charge signals corresponding to the same colored light can be accumulated to produce a much stronger scanning signal.

公开(公告)号：US06590222B1

公开(公告)日：2003-07-08

申请号：US09868493

申请日：2001-06-18

Applicant: David Lindsey Bisset ,  Michael David Aldred ,  Stephen John Wiseman

Inventor： David Lindsey Bisset ,  Michael David Aldred ,  Stephen John Wiseman

IPC: H01J4014

CPC classification number: G01S15/931 ,  G01S3/781 ,  G01S3/782 ,  G01S5/16

Abstract: Light detection apparatus for determining the location of a body within a predetermined area comprises at least two light detecting devices (10,10′,10″), supported on the body and capable of receiving light at points which are spaced about a central axis (8). The apparatus further includes means for supplying information representative of the level of light detected by each light detecting device (10, 10′, 10″). Information received from the light detection apparatus is compared with information previously received from the light detection apparatus and stored in a memory so as to identify when the light detected by the light detection apparatus is the same or substantially the same as light previously detected by the light detection apparatus. When used on an autonomous vehicle, this can allow the vehicle to determine when it has returned to a similar position in an area. The received light signals can be filtered or processed to derive information representative of different types of light (natural, incandescent) or colours of light.

Abstract translation: 用于确定物体在预定区域内的位置的光检测装置包括至少两个光检测装置（10,10'，10“），其被支撑在主体上并且能够在围绕中心轴线间隔开的点处接收光 （8）。 该装置还包括用于提供表示由每个光检测装置（10,10'，10“）检测的光的电平的信息的装置。 将从光检测装置接收的信息与先前从光检测装置接收的信息进行比较并存储在存储器中，以便识别由光检测装置检测到的光是否与由光预先检测到的光相同或基本相同 检测装置。 当在自主车辆上使用时，这可以允许车辆确定何时已经返回到一个区域中的相似位置。 可以对接收的光信号进行滤波或处理，以得到表示不同类型的光（天然，白炽灯）或光的颜色的信息。

公开(公告)号：US06590198B1

公开(公告)日：2003-07-08

申请号：US09490374

申请日：2000-01-24

Applicant: Jeffrey Zarnowski ,  Matthew Pace ,  Thomas Vogelsong ,  Michael Joyner

Inventor： Jeffrey Zarnowski ,  Matthew Pace ,  Thomas Vogelsong ,  Michael Joyner

IPC: H01J4014

CPC classification number: H04N5/3658 ,  H04N5/347 ,  H04N5/365 ,  H04N5/3742 ,  H04N5/37457 ,  H04N5/378

Abstract: An analog video bus architecture that utilizes the column parallel nature of CMOS imagers and more specifically Active Column Sensors, that eliminates the need for multi-port imagers, by increasing the useable bandwidth of single port imagers. An adaptation of this invention allows for either binning or interpolation of pixel information for increased or decreased resolution along the columns and more specifically for ACS imagers binning or interpolation along the rows. In this bus, the single video bus is replaced by multiple video buses and instead of selecting only one column for reading multiple columns are also pre-selected in-order to pre-charge the video bus. The video buses are then de-multiplexed back on to one port at the desired element rate. This architecture utilizes the column oriented video bus of CMOS imagers. It divides the large video bus capacitance by the number of video buses used. In addition, it allows multiple pixel time constants to precharge the video bus. The best commercially available imager designs now claim 40 MHz per analog port and suffer from reduced signal to noise ratios. To overcome this fundamental bandwidth limitation, imager designs in the past have had to increase the number of video ports per imager to achieve high frame rates. Multiple ports per imager breaks the focal plane into segments that are typically reassembled via post processing in a host computer. The other problem with multiple ports is each segment of the imager will have its own offsets and resultant Fixed Pattern Noise (FPN). PVS-Bus™ eliminates the objectionable segmentation and simplifies high-speed system design. Also, by utilizing the column parallel nature of CMOS video buses a method and improved method of using the PVS-Bus of binning and interpolation is described which results in increased frame rate, and for decreased or increased resolution.

Abstract translation: 模拟视频总线架构通过增加单端口成像器的可用带宽，利用CMOS成像器的列并行特性，更具体地说是活动列传感器，消除了对多端口成像器的需要。 本发明的适应性允许对沿着列的分辨率增加或降低的像素信息进行合并或插值，更具体地说，用于沿着行的ACS成像器合并或内插。 在该总线中，单视频总线被多个视频总线替代，而不是仅选择一列用于读取多个列，也是预先选择的，以便为视频总线预充电。 然后视频总线以所需的元件速率被反复复用到一个端口。 该架构利用了CMOS成像器的面向列的视频总线。 它将大视频总线电容除以所使用的视频总线数量。 另外，它允许多个像素时间常数来预充电视频总线。 市面上最好的成像器设计现在要求每个模拟端口40 MHz，信噪比降低。 为了克服这种基本的带宽限制，过去的成像器设计不得不增加每个成像器的视频端口的数量以实现高帧速率。 每个成像仪的多个端口将焦平面分解成通常通过主机中的后处理重新组合的段。 多个端口的另一个问题是成像器的每个段将具有其自己的偏移量和结果固定模式噪声（FPN）。 PVS-Bus（TM）消除了令人反感的分割，简化了高速系统设计。 此外，通过利用CMOS视频总线的列并行性，描述了使用分组和内插的PVS-Bus的方法和改进的方法，其导致帧速率增加以及分辨率降低或增加。

公开(公告)号：US06576886B1

公开(公告)日：2003-06-10

申请号：US09683825

申请日：2002-02-20

Applicant: X. Steve Yao

Inventor： X. Steve Yao

IPC: H01J4014

CPC classification number: G02F1/0136

Abstract: Techniques for dynamically controlling polarization of an optical signal by combining both feed-forward and feedback controls.

Abstract translation: 通过组合前馈和反馈控制来动态控制光信号的偏振的技术。

公开(公告)号：US06576884B1

公开(公告)日：2003-06-10

申请号：US09885639

申请日：2001-06-20

Applicant: Timothy E. Ostromek ,  Joseph P. Estrera ,  Antonio V. Bacarella

Inventor： Timothy E. Ostromek ,  Joseph P. Estrera ,  Antonio V. Bacarella

IPC: H01J4014

CPC classification number: H04N5/33 ,  G01S7/495 ,  H01J40/14

Abstract: A system (100) for gating a sensor (118) includes a detector (120) that detects light and outputs a signal (102) corresponding to the light. A control unit (134) receives the signal (104), adjusts a gating signal (112) in response to the signal (104), and outputs the adjusted gating signal (112) to gate a sensor (118) sensing the light.

Abstract translation: 用于选通传感器（118）的系统（100）包括检测器（120），其检测光并输出对应于光的信号（102）。 控制单元（134）接收信号（104），响应于信号（104）调节选通信号（112），并将调节的门控信号（112）输出到感测光的传感器（118）的门。

公开(公告)号：US06570149B2

公开(公告)日：2003-05-27

申请号：US09812682

申请日：2001-03-21

Applicant: Tomoyuki Maruyama ,  Makoto Kudo ,  Fumio Narusawa

Inventor： Tomoyuki Maruyama ,  Makoto Kudo ,  Fumio Narusawa

IPC: H01J4014

CPC classification number: H01L31/02027 ,  H01L31/024

Abstract: There is disclosed a photodetector which is capable of attaining an enhanced detection accuracy, and at the same time permits reduction in the size and manufacturing costs thereof. An avalanche photodiode detects an incident light, in a state of a predetermined bias voltage set thereto. A cooler cools the avalanche photodiode to a predetermined cooling temperature. An amount of an incident signal light incident on the avalanche photodiode is detected based on a detection signal from the avalanche photodiode. A control block adjusts at least one of the bias voltage and the predetermined cooling temperature, thereby holding a value of the detection signal from the avalanche photodiode generated in a state of the incident light being blocked from impinging on the avalanche photodiode, within a predetermined tolerance range.

Abstract translation: 公开了一种能够提高检测精度的光电检测器，同时可以减小其尺寸和制造成本。 雪崩光电二极管以预定的偏置电压的状态检测入射光。 冷却器将雪崩光电二极管冷却至预定的冷却温度。 基于来自雪崩光电二极管的检测信号检测入射在雪崩光电二极管上的入射信号光的量。 控制块调整偏置电压和预定冷却温度中的至少一个，从而保持来自在入射光的状态下产生的雪崩光电二极管的检测信号的值在预定的公差内被阻挡以撞击在雪崩光电二极管上 范围。