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    • 1. 发明授权
    • Bar code scanner positioning
    • 条码扫描仪定位
    • US06206288B1
    • 2001-03-27
    • US09175607
    • 1998-10-20
    • Robert MayStephen M. OsterweilSundeep KumarHal CharychVadim R. Gololobov
    • Robert MayStephen M. OsterweilSundeep KumarHal CharychVadim R. Gololobov
    • G06K710
    • G06K7/10792G06K7/10861
    • A method of reading bar code symbols includes determining one or more parameters based upon the quantity and/or quality of the data which is being acquired, and providing the user with information concerning that parameter. The parameter may, for example, be the rate at which code words in the symbol are being read, and that information may be passed to the user by way of an LED which flashes at a rate which varies with the data acquisition rate. For a given bar code symbol being read, the rate of flashing varies with the position of the bar code reader with respect to the symbol. To improve the data acquisition rate, the user simply moves and/or rotates the bar code reader with respect to the symbol in a direction which causes the rate of flashing to increase. The invention extends to a bar code reader having means for providing an indication to a user of the relative suitability, for optimal reading of a symbol, of the current position of the reader.
    • 读取条形码符号的方法包括基于所获取的数据的数量和/或质量来确定一个或多个参数,以及向用户提供关于该参数的信息。 该参数可以是例如符号中的代码字被读取的速率,并且该信息可以通过以随数据获取速率而变化的速率闪烁的LED传递给用户。 对于正在读取的给定条形码符号,闪烁速率随着条形码读取器相对于符号的位置而变化。 为了提高数据采集速率,用户简单地使条形码读取器相对于符号沿着使闪烁速率增加的方向移动和/或旋转。 本发明扩展到条形码读取器,其具有用于向用户提供用于读取器的当前位置的相对适合性(用于符号的最佳读取)的指示的装置。
    • 2. 发明授权
    • Bar code scanner positioning
    • 条码扫描仪定位
    • US5825010A
    • 1998-10-20
    • US342738
    • 1994-11-21
    • Hal CharychStephen OsterweilSundeep Kumar
    • Hal CharychStephen OsterweilSundeep Kumar
    • G06K7/10
    • G06K7/10861G06K7/10792
    • A method of reading bar code symbols includes determining one or more parameters based upon the quantity and/or quality of the data which is being acquired, and providing the user with information concerning that parameter. The parameter may, for example, be the rate at which code words in the symbol are being read, and that information may be passed to the user by way of an LED which flashes at a rate which varies with the data acquisition rate. For a given bar code symbol being read, the rate of flashing varies with the position of the bar code reader with respect to the symbol. To improve the data acquisition rate, the user simply moves and/or rotates the bar code reader with respect to the symbol in a direction which causes the rate of flashing to increase. The invention extends to a bar code reader having means for providing an indication to a user of the relative suitability, for optimal reading of a symbol, of the current position of the reader.
    • 读取条形码符号的方法包括基于所获取的数据的数量和/或质量来确定一个或多个参数,以及向用户提供关于该参数的信息。 该参数可以是例如符号中的代码字被读取的速率,并且该信息可以通过以随数据获取速率而变化的速率闪烁的LED传递给用户。 对于正在读取的给定条形码符号,闪烁速率随着条形码读取器相对于符号的位置而变化。 为了提高数据采集速率,用户简单地使条形码读取器相对于符号沿着使闪烁速率增加的方向移动和/或旋转。 本发明扩展到条形码读取器,其具有用于向用户提供用于读取器的当前位置的相对适合性(用于符号的最佳读取)的指示的装置。
    • 7. 发明申请
    • Multi-frequency RFID apparatus and methods of reading RFID tags
    • 多频RFID设备和阅读RFID标签的方法
    • US20060066441A1
    • 2006-03-30
    • US10957529
    • 2004-09-30
    • Richard KnadleHal CharychMark DuronRaj Bridgelall
    • Richard KnadleHal CharychMark DuronRaj Bridgelall
    • H04Q5/22
    • H01Q1/2216G06K7/0008H01Q1/22H01Q21/28H01Q21/30
    • A portable/handheld device is provided having a processing module configured to selectively operate a reading mode selected from a far-field mode and a near-field mode, and a directional antenna array coupled to the processing module. The directional antenna array includes a first antenna element configured to radiate electromagnetic (EM) radiation in a far-field, and a second antenna element coupled to the first antenna element. The second antenna element is configured to radiate EM radiation in a near-field. The second antenna element includes an antenna transducer configured to selectively cancel far-field EM radiation from the first antenna element. A method of reading inductively coupled radio frequency identification (RFID) tags is also provided having the steps of scanning at least one frequency band to detect a RFID tag, and selectively radiating one of a near-field electromagnetic (EM) field and a far-field EM field based on the detected RFID tag.
    • 提供了一种便携式/手持式装置,其具有被配置为选择性地操作从远场模式和近场模式选择的读取模式的处理模块以及耦合到处理模块的定向天线阵列。 定向天线阵列包括被配置为辐射远场中的电磁(EM)辐射的第一天线元件和耦合到第一天线元件的第二天线元件。 第二天线元件被配置为在近场辐射EM辐射。 第二天线元件包括被配置为选择性地抵消来自第一天线元件的远场EM辐射的天线换能器。 还提供一种读取电感耦合射频识别(RFID)标签的方法,其具有扫描至少一个频带以检测RFID标签的步骤,并且选择性地辐射近场电磁场(EM)场和远场识别 基于检测到的RFID标签的场EM场。