公开(公告)号：US20080106384A1

公开(公告)日：2008-05-08

申请号：US11923204

申请日：2007-10-24

申请人： Harrsion Byounghyun CHUNG ,  Nae Soo KIM ,  Cheol Sig PYO

发明人： Harrsion Byounghyun CHUNG ,  Nae Soo KIM ,  Cheol Sig PYO

IPC分类号： H04B7/00

CPC分类号： G06K7/0008

摘要： Provided are an apparatus and method of optimizing a power output of a radio frequency identification reader (RFID) reader. The apparatus includes a loss measurement unit which measures an interface loss between the RFID reader and an antenna by receiving a signal output from the antenna of the RFID reader, a output power compensation amplifier which amplifies a power output to compensate for the measured interface loss, and an output fixation unit which uniformly maintains a power output of the output power compensation amplifier by storing the output compensated power value.

摘要翻译： 提供了一种优化射频识别读取器（RFID）读取器的功率输出的装置和方法。 该装置包括：损耗测量单元，其通过接收从RFID读取器的天线输出的信号来测量RFID读取器和天线之间的接口损耗;输出功率补偿放大器，其放大功率输出以补偿所测量的接口损耗; 以及输出固定单元，其通过存储输出补偿功率值来均匀地维持输出功率补偿放大器的功率输出。

公开(公告)号：US20090058613A1

公开(公告)日：2009-03-05

申请号：US12059760

申请日：2008-03-31

申请人： Byounghyun CHUNG ,  Hee Sook MO ,  Nae-Soo KIM ,  Cheol Sig PYO

发明人： Byounghyun CHUNG ,  Hee Sook MO ,  Nae-Soo KIM ,  Cheol Sig PYO

IPC分类号： H04Q5/22

CPC分类号： H04Q9/00 ,  H04Q2209/47

摘要： Provided is a method for communication with between readers having dual sensitivity modes for avoiding conflict between readers arising from interference each other when simultaneously used in a limited space. The method for communication between a tag and a reader using dual sensitivity modes for avoiding conflict between the reader and the tag includes: initializing the reader to a normal sensitivity mode; temporarily selecting a frequency channel by the reader; checking whether or not a different reader uses the selected frequency channel; repeatedly selecting another frequency channel if the other readers occupy the selected frequency channel; switching to a reduced sensitivity mode if the other readers do not occupy the selected frequency channel; and communicating with the tag by the reader in the reduced sensitivity mode.

摘要翻译： 提供了一种用于在具有双重灵敏度模式的读取器之间进行通信的方法，用于在同时在有限空间中同时使用时避免彼此干扰而引起的读取器之间的冲突。 使用双灵敏度模式的标签和读取器之间的通信方法用于避免读取器和标签之间的冲突，包括：将读取器初始化为正常灵敏度模式; 由读者临时选择频道; 检查不同的读取器是否使用所选择的频道; 如果其他读取器占用所选择的频道，则重复选择另一个频道; 如果其他读取器不占用所选择的频道，则切换到灵敏度降低模式; 并以读取器以降低的灵敏度模式与标签通信。

公开(公告)号：US20080093444A1

公开(公告)日：2008-04-24

申请号：US11745647

申请日：2007-05-08

申请人： Harrsion Byounghyun Chung ,  Nae Soo Kim ,  Cheol Sig Pyo

发明人： Harrsion Byounghyun Chung ,  Nae Soo Kim ,  Cheol Sig Pyo

IPC分类号： G06F7/08

CPC分类号： G07F9/026 ,  G06Q20/3278

摘要： Provided is an automatic vending system using RFID technology including a multi-tag unit including a plurality of RFID tags which store product sales information; and a sales management unit which receives a message of purchase request including information on a purchase requested product, checks if the purchase requested product is in stock based on the product sales information which is stored in the RFID tags, and sells the product if it is in stock.

摘要翻译： 提供了一种使用RFID技术的自动售货系统，其包括包含存储产品销售信息的多个RFID标签的多标签单元; 以及销售管理单元，其接收包括购买请求产品的信息的购买请求消息，基于存储在RFID标签中的产品销售信息来检查购买请求的产品是否库存，并且如果是 有现货。