Combined 3D- and 2D-scanning machine-vision system and method
    1.
    发明授权
    Combined 3D- and 2D-scanning machine-vision system and method 失效
    组合3D和2D扫描机器视觉系统和方法

    公开(公告)号:US06522777B1

    公开(公告)日:2003-02-18

    申请号:US09350049

    申请日:1999-07-08

    IPC分类号: G06K900

    摘要: Manufacturing lines include inspection systems for monitoring the quality of parts produced. Manufacturing lines for making semiconductor devices generally inspect each fabricated part. The information obtained is used to fix manufacturing problems in the semiconductor fab plant. A machine-vision system for inspecting devices includes a light source for propagating light to the device and an image detector that receives light from the device. The devices, such as semiconductors, are placed in trays for inspection at one or more inspection stations. A compartment for holding a plurality of trays is positioned near a first inspection station having a first inspection surface. An elevator elevates one of the trays from the compartment and presents the tray and the devices held by the tray to the first inspection surface. After being inspected at a first station, a tray-transfer device moves the tray from the first inspection station to a flipper mechanism. The flipper mechanism includes two jaws and a rotator. The flipper mechanism turns the devices over and places the devices in a second tray so that another surface of the device can be inspected. A second tray-transfer device moves the second tray from the flipper to a second inspection station. If a device in the tray fails inspection, a picker removes that bad device from the tray and replaces it with a device that previously passed inspection.

    摘要翻译: 生产线包括用于监测生产零件质量的检测系统。 用于制造半导体器件的制造线通常检查每个制造的部件。 获得的信息用于解决半导体晶圆厂的制造问题。 用于检查装置的机器视觉系统包括用于将光传播到装置的光源和从装置接收光的图像检测器。 诸如半导体的器件被放置在托盘中以便在一个或多个检查站检查。 用于保持多个托盘的隔室位于具有第一检查表面的第一检查站附近。 电梯从隔间提升托盘中的一个,并将托盘和由托盘保持的装置呈现到第一检查表面。 在第一站检查后,托盘传送装置将托盘从第一检查站移动到翻动机构。 导板机构包括两个钳口和一个旋转器。 导板机构将装置转过来并将装置放置在第二托盘中,使得可以检查装置的另一个表面。 第二托盘传送装置将第二托盘从托板移动到第二检查台。 如果托盘中的设备未能检查,则选择器将该设备从托盘中移除,并将其替换为先前通过检查的设备。

    Remote as signal attenuator
    2.
    发明授权
    Remote as signal attenuator 失效
    遥控器作为信号衰减器

    公开(公告)号:US4937466A

    公开(公告)日:1990-06-26

    申请号:US250905

    申请日:1988-09-29

    IPC分类号: H03H11/24

    CPC分类号: H03H11/245

    摘要: The present disclosure provides a variable attenuator for attenuating alternating signals, preferably, in a frequency band extending from approximately 10 Hz to 30 MHz. The invention utilizes a junction field-effect transistor (JFET) as a variable impedance. The low drain-to-source capacitance exhibited by the JFET allows it to be modeled as a variable resistor or potentiometer. Further, the low drain-to-source capacitance of the JFET improves the bandwidth of the attenuator. A remote DC control signal defines the resistance provided by the JFET. A feedback loop, responsive to the resistance of the JFET and the remote control signal, controls the resistance provided by the JFET in a linear manner. The DC control signal is low-pass filtered at the feedback loop to reduce any high frequency noise acquired during transmission.

    摘要翻译: 本公开提供了用于衰减交替信号的可变衰减器,优选地,在从大约10Hz到30MHz的频带中。 本发明利用结型场效应晶体管(JFET)作为可变阻抗。 JFET显示的低漏极 - 源极电容允许将其建模为可变电阻器或电位器。 此外,JFET的低漏极 - 源极电容提高了衰减器的带宽。 远程直流控制信号定义了JFET提供的电阻。 响应于JFET和遥控信号的电阻的反馈环路以线性方式控制由JFET提供的电阻。 DC控制信号在反馈环路进行低通滤波,以减少在传输期间获得的任何高频噪声。

    Optical network interface devices and methods
    3.
    发明授权
    Optical network interface devices and methods 有权
    光网络接口设备及方法

    公开(公告)号:US08401387B2

    公开(公告)日:2013-03-19

    申请号:US12121243

    申请日:2008-05-15

    IPC分类号: H04B10/00

    摘要: A system comprises an optical network terminal (ONT) that provides an interface to a passive optical network (PON). The ONT is coupled to a subscriber gateway device via at least one cable. The ONT may be located outside a subscriber premises while the subscriber gateway device may be located within the subscriber premises. The ONT converts optical signals received from PON to electrical signals and transmits the electrical signals to the subscriber gateway device without performing any MAC layer functions. The subscriber gateway device includes an optical media access control (MAC) unit that converts the electrical signals into MAC layer signals and a gateway unit that distributes the MAC layer signals to one or more subscriber devices. In this manner the MAC and gateway layer functions are relocated from the ONT to the subscriber gateway device.

    摘要翻译: 一种系统包括提供到无源光网络(PON)的接口的光网络终端(ONT)。 ONT通过至少一根电缆耦合到用户网关设备。 ONT可以位于用户驻地外部,而用户网关设备可以位于用户驻地内。 ONT将从PON接收的光信号转换为电信号,并将电信号发送到用户网关设备,而不执行任何MAC层功能。 用户网关设备包括将电信号转换成MAC层信号的光媒体访问控制(MAC)单元,以及将MAC层信号分配给一个或多个订户设备的网关单元。 以这种方式,MAC和网关层功能从ONT重新定位到用户网关设备。

    Field-programmable electronic crossbar system and method for using same
    4.
    发明授权
    Field-programmable electronic crossbar system and method for using same 失效
    现场可编程电子交叉开关系统及其使用方法

    公开(公告)号:US5530813A

    公开(公告)日:1996-06-25

    申请号:US285916

    申请日:1994-08-04

    CPC分类号: G06F15/17375 G06F13/4022

    摘要: Method and apparatus for using a field-programmable gate-array circuit as a crossbar switch. In order to connect a first port of the crossbar switch to a second port, an address within the field-programmable gate-array circuit is calculated, and a first data pattern to load at that address is determined. A second data pattern to load at that address is determined in order to disconnect the first port from the second port. The first port is then connected to the second port by loading the first data pattern at the calculated address in the field-programmable gate-array circuit. Subsequently the first port is disconnected from the second port by loading the second data pattern at the calculated address in the field-programmable gate-array circuit. Mechanisms are provided for analog or digital ports, for multiple-bit digital ports, for combinations of logical functions with the crossbar-switch functions, and for latching the data within the crossbar switch. In one embodiment, the crossbar switch is incrementally reconfigurable wherein ports not involved in the reconfiguration are not affected by the reconfiguration operation. Applications to machine vision systems are described.

    摘要翻译: 使用现场可编程门阵列电路作为交叉开关的方法和装置。 为了将交叉开关的第一端口连接到第二端口,计算现场可编程门阵列电路内的地址,并且确定在该地址处加载的第一数据模式。 确定在该地址处加载的第二数据模式,以便将第一端口与第二端口断开连接。 然后通过在现场可编程门阵列电路中的计算地址处加载第一数据模式将第一端口连接到第二端口。 随后,通过在现场可编程门阵列电路中的计算地址处加载第二数据模式,第一端口与第二端口断开。 提供用于模拟或数字端口的机制,用于多位数字端口,用于逻辑功能与交叉开关功能的组合,以及用于将数据锁定在交叉开关中。 在一个实施例中,交叉开关是递增地可重新配置的,其中不参与重新配置的端口不受重新配置操作的影响。 描述了对机器视觉系统的应用。

    Method of and device for fluid surface detection using an ultrasonic
transducer
    5.
    发明授权
    Method of and device for fluid surface detection using an ultrasonic transducer 失效
    使用超声波换能器进行流体表面检测的方法和装置

    公开(公告)号:US5428997A

    公开(公告)日:1995-07-04

    申请号:US917205

    申请日:1992-07-20

    申请人: Mark T. Paulsen

    发明人: Mark T. Paulsen

    摘要: The present invention provides a method of detecting a fluid surface and a circuit for an ultrasonic transducer for detecting such a fluid surface. In accordance with the method, an ultrasonic transducer driver generates a first voltage proportional to the resonant frequency of the ultrasonic transducer. A reference voltage is generated and the reference voltage and the first voltage are monitored and compared, and a surface detect signal is generated when the first voltage drops below the reference voltage. The circuit of the invention includes means for generating a first voltage proportional to the resonant frequency of the transducer, means for generating a reference voltage, and a comparator for monitoring the first and reference voltages and generating a surface detect signal when the first voltage drops below the reference voltage.

    摘要翻译: 本发明提供一种检测流体表面的方法和用于检测这种流体表面的超声换能器的回路。 根据该方法,超声换能器驱动器产生与超声换能器的共振频率成比例的第一电压。 产生参考电压,并监视和比较参考电压和第一电压,并且当第一电压下降到参考电压以下时,产生表面检测信号。 本发明的电路包括用于产生与换能器的谐振频率成比例的第一电压的装置,用于产生参考电压的装置,以及用于监视第一和参考电压的比较器,以及当第一电压降低时产生表面检测信号 参考电压。

    Optical network interface devices and methods
    6.
    发明授权
    Optical network interface devices and methods 有权
    光网络接口设备及方法

    公开(公告)号:US08433195B2

    公开(公告)日:2013-04-30

    申请号:US12121283

    申请日:2008-05-15

    IPC分类号: H04B10/00

    摘要: A system comprises an optical network terminal (ONT) that terminates an optical fiber link of an optical network to provide an optical network interface. The ONT may include an optical module that receives optical signals via the optical fiber link and converts the optical signals to electrical signals and an optical media access control (MAC) unit that converts at least some of the electrical signals to data units. The optical MAC unit may be selectively configurable to support a plurality of optical network protocols. For example, the optical MAC unit is selectively configurable to support two or more of BPON protocol, a GPON protocol, a GEPON protocol and an active Ethernet protocol. In one instance, the optical MAC unit is selectively configurable to support at least one active optical network protocol and at least one passive optical network protocol.

    摘要翻译: 一种系统包括终端光网络的光纤链路以提供光网络接口的光网络终端(ONT)。 ONT可以包括光模块,其经由光纤链路接收光信号并将光信号转换为电信号,以及将至少一些电信号转换为数据单元的光介质访问控制(MAC)单元。 光学MAC单元可以被选择性地配置为支持多个光网络协议。 例如,光MAC单元可选择性地配置为支持BPON协议,GPON协议,GEPON协议和活动以太网协议中的两个或多个。 在一种情况下,光学MAC单元可选择性地配置为支持至少一个有源光网络协议和至少一个无源光网络协议。

    COMMUNICATION AMONG NETWORK DEVICES AT SUBSCRIBER PREMISES
    7.
    发明申请
    COMMUNICATION AMONG NETWORK DEVICES AT SUBSCRIBER PREMISES 审中-公开
    在订阅客户网络设备上的通信

    公开(公告)号:US20130022132A1

    公开(公告)日:2013-01-24

    申请号:US13188023

    申请日:2011-07-21

    IPC分类号: H04B3/00

    摘要: One or more example techniques of this disclosure may be directed to providing a diversity of ways in which a network interface device may receive information from or transmit information to one or more of subscriber devices within a subscriber premises. For example, the network interface device may wirelessly transmit and receive information. The network interface device may also be coupled to a power supply device, and may receive information from and transmit information to the power supply device. The power supply device may receive information from and transmit information to the one or more of the subscriber devices utilizing wireless techniques and/or power line communication (PLC) techniques.

    摘要翻译: 本公开的一个或多个示例性技术可以用于提供网络接口设备可以从用户驻地内的一个或多个用户设备接收信息或向其发送信息的多种方式。 例如,网络接口设备可以无线地发送和接收信息。 网络接口设备还可以耦合到电源设备,并且可以从电源设备接收信息并向电源设备发送信息。 供电设备可以使用无线技术和/或电力线通信(PLC)技术从一个或多个订户设备接收信息并向其发送信息。

    OPTICAL NETWORK INTERFACE DEVICES AND METHODS
    9.
    发明申请
    OPTICAL NETWORK INTERFACE DEVICES AND METHODS 有权
    光网络接口设备和方法

    公开(公告)号:US20090060531A1

    公开(公告)日:2009-03-05

    申请号:US12121283

    申请日:2008-05-15

    IPC分类号: H04B10/06

    摘要: A system comprises an optical network terminal (ONT) that terminates an optical fiber link of an optical network to provide an optical network interface. The ONT may include an optical module that receives optical signals via the optical fiber link and converts the optical signals to electrical signals and an optical media access control (MAC) unit that converts at least some of the electrical signals to data units. The optical MAC unit may be selectively configurable to support a plurality of optical network protocols. For example, the optical MAC unit is selectively configurable to support two or more of BPON protocol, a GPON protocol, a GEPON protocol and an active Ethernet protocol. In one instance, the optical MAC unit is selectively configurable to support at least one active optical network protocol and at least one passive optical network protocol.

    摘要翻译: 一种系统包括终端光网络的光纤链路以提供光网络接口的光网络终端(ONT)。 ONT可以包括光模块,其经由光纤链路接收光信号并将光信号转换为电信号,以及将至少一些电信号转换为数据单元的光介质访问控制(MAC)单元。 光学MAC单元可以被选择性地配置为支持多个光网络协议。 例如,光MAC单元可选择性地配置为支持BPON协议,GPON协议,GEPON协议和活动以太网协议中的两个或多个。 在一种情况下,光学MAC单元可选择性地配置为支持至少一个有源光网络协议和至少一个无源光网络协议。

    OPTICAL NETWORK INTERFACE DEVICES AND METHODS
    10.
    发明申请
    OPTICAL NETWORK INTERFACE DEVICES AND METHODS 有权
    光网络接口设备和方法

    公开(公告)号:US20090060530A1

    公开(公告)日:2009-03-05

    申请号:US12121243

    申请日:2008-05-15

    IPC分类号: H04B10/06 H04L12/28

    摘要: A system comprises an optical network terminal (ONT) that provides an interface to a passive optical network (PON). The ONT is coupled to a subscriber gateway device via at least one cable. The ONT may be located outside a subscriber premises while the subscriber gateway device may be located within the subscriber premises. The ONT converts optical signals received from PON to electrical signals and transmits the electrical signals to the subscriber gateway device without performing any MAC layer functions. The subscriber gateway device includes an optical media access control (MAC) unit that converts the electrical signals into MAC layer signals and a gateway unit that distributes the MAC layer signals to one or more subscriber devices. In this manner the MAC and gateway layer functions are relocated from the ONT to the subscriber gateway device.

    摘要翻译: 一种系统包括提供到无源光网络(PON)的接口的光网络终端(ONT)。 ONT通过至少一根电缆耦合到用户网关设备。 ONT可以位于用户驻地外部,而用户网关设备可以位于用户驻地内。 ONT将从PON接收的光信号转换为电信号,并将电信号发送到用户网关设备,而不执行任何MAC层功能。 用户网关设备包括将电信号转换成MAC层信号的光媒体访问控制(MAC)单元,以及将MAC层信号分配给一个或多个订户设备的网关单元。 以这种方式,MAC和网关层功能从ONT重新定位到用户网关设备。