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    • 1. 发明授权
    • Indicia reading apparatus having reduced trigger-to-read time
    • 标记读取装置具有减少的触发读取时间
    • US07740176B2
    • 2010-06-22
    • US11545721
    • 2006-10-10
    • Ynjiun P. WangAndrew Longacre, Jr.
    • Ynjiun P. WangAndrew Longacre, Jr.
    • G06K7/10
    • G06K7/14G06K7/10851
    • A TTR time of a reading apparatus can also be reduced by designing an apparatus to exhibit a certain timing relationship between a receipt of a trigger signal and/or more of image capture and decoding. An apparatus in one embodiment can be configured to continuously capture frames of image data prior to receipt of a trigger signal and can further be configured so that an output decoded message is decoded from a frame of image data having a capture initiation time of prior to the time of receipt of a trigger signal. An apparatus configured to output a decoded message from a frame of image data having a capture initiation time of prior to a time of receipt of a trigger signal can have a TTR time of less than a frame capture period of the apparatus.
    • 读取装置的TTR时间也可以通过设计在触发信号的接收和/或更多的图像捕获和解码之间呈现一定的定时关系的装置来减少。 一个实施例中的装置可以被配置为在接收到触发信号之前连续地捕获图像数据帧,并且还可以被配置为使得输出解码消息从具有先前的捕获开始时间之前的图像数据的帧被解码 接收触发信号的时间。 被配置为从具有在接收到触发信号之前的捕获开始时间的图像数据的帧中输出解码消息的装置可以具有小于装置的帧捕获周期的TTR时间。
    • 2. 发明授权
    • Synthesis decoding and methods of use thereof
    • 合成解码及其使用方法
    • US07416125B2
    • 2008-08-26
    • US11088612
    • 2005-03-24
    • Ynjiun P. WangAndrew Longacre, Jr.
    • Ynjiun P. WangAndrew Longacre, Jr.
    • G02B26/10G06K9/22G06K7/10
    • G06K7/1093
    • Systems and methods for successfully decoding optical images of objects of interest when such objects are situated outside a conventional working range of an imaging system, or when such objects are degraded. The systems and methods are based upon a comparison of computed signals corresponding to distorted images that would be obtained from known objects, such as barcodes, when viewed outside a working range, or when degraded, with actual signals obtained from the object of interest. The computed signals in one embodiment are recorded in a lookup table. An advantage of the systems and methods disclosed is that there results a smooth, monotonic probability of correctly decoding the image of interest, even beyond the working distance. A handheld or portable apparatus useful for practicing the invention is also disclosed.
    • 当这样的物体位于成像系统的常规工作范围之外时,或者当这些物体退化时,成功解码感兴趣物体的光学图像的系统和方法。 系统和方法基于对应于从已知对象获得的失真图像的计算信号的比较,例如当从工作范围之外观察时,条形码,或者当从感兴趣对象获得的实际信号被降级时。 一个实施例中的计算信号被记录在查找表中。 所公开的系统和方法的优点在于,即使在工作距离之外,也能够正确地解码感兴趣的图像,这是平滑,单调的概率。 还公开了一种用于实践本发明的手持式或便携式装置。
    • 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。
    • 7. 发明申请
    • ROAMING ENCODED INFORMATION READING TERMINAL
    • 漫游编码信息阅读终端
    • US20120287910A1
    • 2012-11-15
    • US13470510
    • 2012-05-14
    • Ynjiun P. WangHuyu Qu
    • Ynjiun P. WangHuyu Qu
    • H04W84/12
    • H04W60/04H04W8/28H04W36/0011H04W60/00H04W80/04
    • A portable encoded information reading (EIR) terminal for incorporation in a data collection system having a host computer, a plurality of peer EIR terminals, and a plurality of interconnected networks including one or more wireless networks, can comprise a central processing unit (CPU), a memory, an encoded information reading (EIR) device, and at least one wireless communication interface. The EIR terminal can be associated with a home network and have a home address belonging to the address range associated with the home network. The EIR terminal can participate in one or more communication sessions and exchange messages, at least one of which can include decoded message data corresponding to an encoded message, with the host computer. The EIR terminal can maintain active communication sessions using its home address when roaming between the interconnected networks.
    • 用于并入具有主计算机,多个对等EIR终端和包括一个或多个无线网络的多个互连网络的数据收集系统的便携式编码信息读取(EIR)终端可以包括中央处理单元(CPU) 存储器,编码信息读取(EIR)设备和至少一个无线通信接口。 EIR终端可以与家庭网络相关联,并且具有属于与归属网络相关联的地址范围的归属地址。 EIR终端可以参与一个或多个通信会话,并且与主计算机交换消息,其消息中的至少一个可以包括对应于编码消息的解码消息数据。 当互联网络之间漫游时,EIR终端可以使用其归属地址来维护主动通信会话。