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    • 3. 发明授权
    • Encoded information reading terminal with micro-electromechanical radio frequency front end
    • 具有微机电射频前端的编码信息读取终端
    • US08779898B2
    • 2014-07-15
    • US13211555
    • 2011-08-17
    • William H. HavensHuyu Qu
    • William H. HavensHuyu Qu
    • G08B13/14H04Q3/00H04Q5/22G06F7/40H04B1/16
    • H01Q1/2216G06K7/10386G06K7/10881H01Q5/314H01Q15/0086H04Q2213/13095
    • An encoded information reading (EIR) terminal can comprise a microprocessor electrically coupled to a system/data bus, a memory communicatively coupled to the microprocessor, an EIR device, a multi-band antenna, and a wireless communication interface. The EIR device can be provided by a bar code reading device, an RFID reading device, or a card reading device. The EIR device can be configured to output raw message data containing an encoded message and/or output decoded message data corresponding to an encoded message. The wireless communication interface can comprise a radio frequency (RF) front end electrically coupled to the multi-band antenna. The RF front end can comprise a micro-electromechanical (MEMS) filter array including one or more band-pass filter. Each band-pass filter of the MEMS filter array can be electrically coupled to a bias voltage source or an oscillating signal source. The RF front end can be electrically coupled to an analog-to-digital (A/D) converter and/or to a digital-to-analog (D/A) converter. The wireless communication interface can be configured to transmit radio signals in two or more frequency regulatory domains and/or receive radio signals in two or more frequency regulatory domains. The multi-band antenna can in one embodiment be provided by a meta-material antenna.
    • 编码信息读取(EIR)终端可以包括电耦合到系统/数据总线的微处理器,通信地耦合到微处理器的存储器,EIR设备,多频带天线和无线通信接口。 EIR设备可以由条形码读取装置,RFID读取装置或读卡装置提供。 EIR设备可以被配置为输出包含编码消息的原始消息数据和/或输出与编码消息对应的解码消息数据。 无线通信接口可以包括电耦合到多频带天线的射频(RF)前端。 RF前端可以包括包括一个或多个带通滤波器的微机电(MEMS)滤波器阵列。 MEMS滤波器阵列的每个带通滤波器可以电耦合到偏置电压源或振荡信号源。 RF前端可以电耦合到模数(A / D)转换器和/或数字到模拟(D / A)转换器。 无线通信接口可以被配置为在两个或更多个频率调节域中发射无线电信号和/或在两个或更多个频率调节域中接收无线电信号。 在一个实施例中,多频带天线可由超材料天线提供。
    • 4. 发明授权
    • Image reader comprising CMOS based image sensor array
    • 图像读取器,包括基于CMOS的图像传感器阵列
    • US08733660B2
    • 2014-05-27
    • US13052768
    • 2011-03-21
    • Ynjiun P. WangWilliam H. Havens
    • Ynjiun P. WangWilliam H. Havens
    • G06K7/10
    • H04N5/378G06K7/10722G06K7/1439H04N5/2253H04N5/2256H04N5/23245H04N5/23293H04N5/2353H04N5/374H04N5/3765
    • The invention features an image reader and a corresponding method for capturing a sharp distortion free image of a target, such as a one or two-dimensional bar code. In one embodiment, the image reader comprises a two-dimensional CMOS based image sensor array, a timing module, an illumination module, and a control module. The time during which the target is illuminated is referred to as the illumination period. The capture of the image by the image sensor array is driven by the timing module that, in one embodiment, is able to simultaneously expose substantially all of the pixels in the array. The time during which the pixels are collectively activated to photo-convert incident light into charge defines the exposure period for the sensor array. In one embodiment, at least a portion of the exposure period occurs during the illumination period.
    • 本发明的特征在于一种图像读取器和用于捕获诸如一维或二维条形码的目标的无失真图像的相应方法。 在一个实施例中,图像读取器包括基于二维CMOS的图像传感器阵列,定时模块,照明模块和控制模块。 目标照明的时间被称为照明周期。 由图像传感器阵列捕捉图像由定时模块驱动,在一个实施例中,定时模块能够基本上同时暴露阵列中的所有像素。 像素被共同激活以将入射光光转换为电荷的时间限定了传感器阵列的曝光时段。 在一个实施例中,曝光周期的至少一部分在照明周期期间发生。
    • 5. 发明授权
    • System and method for measuring irregular objects with a single camera
    • 用单个相机测量不规则物体的系统和方法
    • US08643717B2
    • 2014-02-04
    • US12397800
    • 2009-03-04
    • Jingquan LiWilliam H. Havens
    • Jingquan LiWilliam H. Havens
    • H04N7/18
    • G01B11/02G01B11/2433
    • An optical system for measuring an irregularly shaped object includes a dimensioning station having a base, a first wall extending from the base, and a second wall extending from the base. A collimated light is passed from each of first and second collimated light sources arranged generally parallel to the base, illuminating the first and second walls and defining first and second shadows, respectively. A camera is arranged to obtain image data representing each of the first and second shadows. The system is configured to collect the image data for determining at least one dimension of an object from each of the first and second shadows. Each of the first and second collimated light sources may be a light with a collimating lens arranged between the light and the respective wall. The light source may be an LED and the collimating lens may be a collimating Fresnel lens.
    • 用于测量不规则形状物体的光学系统包括具有底座的尺寸设计台,从基座延伸的第一壁和从底座延伸的第二壁。 准直光从大致平行于基座排列的第一和第二准直光源中的每一个通过,照亮第一和第二壁并分别限定第一和第二阴影。 布置相机以获得表示第一和第二阴影中的每一个的图像数据。 系统被配置为收集用于从第一和第二阴影中的每一个确定对象的至少一个维度的图像数据。 第一和第二准直光源中的每一个可以是具有布置在光和相应的壁之间的准直透镜的光。 光源可以是LED,并且准直透镜可以是准直菲涅尔透镜。