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    • 7. 发明申请
    • RADIO COMMUNICATION APPARATUS AND METHOD THEREOF
    • 无线电通信装置及其方法
    • US20100141394A1
    • 2010-06-10
    • US12630031
    • 2009-12-03
    • Makoto Sugiyama
    • Makoto Sugiyama
    • H04Q5/22
    • G06K7/0008G06K7/10079H04Q2213/13095
    • There is provided a radio communication device capable of accurately selecting an object RF-tag to be processed and a non-object RF-tag not to be processed.An RF-tag inquiry unit inquires for tag identification information to an RF-tag by radio communication. A radio field intensity detecting unit detects a radio field intensity of a response radiowave returned from the RF-tag, and a radio field intensity determining unit determines whether or not this radio field intensity is equal to or greater than a threshold. An execution control unit executes a prescribed process applying to the RF-tag whose radio field intensity is determined to be equal to or greater than the threshold. A first radio field intensity determining unit determines a first radio field intensity using the radio field intensity of the radiowave responded from the RF-tag that has been determined to be an object to which a prescribed process is applied, while a second radio field intensity determining unit determines a second radio field intensity using the radio field intensity of the radiowave responded from the RF-tag that has been determined to be non-object not to be processed. A threshold update unit calculates a new threshold using the first radio field intensity and second radio field intensity.
    • 提供能够精确选择要处理的对象RF标签和不处理的非对象RF标签的无线通信装置。 RF标签查询单元通过无线电通信向RF标签询问标签识别信息。 无线电场强度检测单元检测从RF标签返回的响应无线电波的无线电场强度,无线电场强度确定单元确定该无线电场强度是否等于或大于阈值。 执行控制单元执行将无线电场强度确定为等于或大于阈值的RF标签的规定处理。 第一无线电场强度确定单元使用已经被确定为被应用了规定处理的对象的RF标签响应的无线电波的无线电场强度来确定第一无线电场强度,而第二无线电场强度确定单元 单元使用已被确定为非对象不被处理的RF标签响应的无线电波的无线电场强度来确定第二无线电场强度。 阈值更新单元使用第一无线电场强度和第二无线电场强度来计算新阈值。