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1. 发明申请

US20090058612A1 METHOD AND APPARATUS FOR AVOIDING COLLISION BETWEEN EACH OF RADIO FREQUENCY IDENTIFICATION READERS 失效
标题翻译：用于避免无线电频率识别读者之间的冲突的方法和装置
公开(公告)号：US20090058612A1
公开(公告)日：2009-03-05
申请号：US12039476
申请日：2008-02-28
申请人： Byunghyun CHUNG , Hee Sook MO , Nae-Soo KIM , Cheol Sig PYO
发明人： Byunghyun CHUNG , Hee Sook MO , Nae-Soo KIM , Cheol Sig PYO
IPC分类号： H04Q5/22 , H04Q5/00
CPC分类号： G06K7/0008 , G06K7/10069 , G06K7/10356 , H04Q2213/13095
摘要： Provided are a method and an apparatus for avoiding a collision between each of radio frequency identification (RFID) readers. The method and the apparatus divide the RFID readers into first RFID readers and second RFID readers according to a maximum output level, and set first frequency channels for the first RFID readers and second frequency channels for the second RFID readers, set frequency channel disposition information for each of the first RFID readers, generate a channel holding signal in each of the first frequency channels, and if a frequency channel usage request or a frequency channel return request is received from one of the first RFID readers, stop generating or generate the channel holding signal in a frequency channel related to the frequency channel usage or return request. In this manner, the collision between each of the RFID readers is avoided by preventing the second RFID readers from using the first frequency channels for the first RFID readers. Also, the method and the apparatus can efficiently manage frequency channels by controlling a ratio of the number of the first frequency channels to be used by the first RFID readers and the number of the second frequency channels to be used by the second RFID readers, according to usage frequency.
摘要翻译：提供了一种用于避免每个射频识别（RFID）读取器之间的冲突的方法和装置。该方法和设备根据最大输出电平将RFID阅读器划分为第一RFID阅读器和第二RFID阅读器，并为第一RFID读取器和第二个RFID读取器的第二个频道设置第一个频道，设置频道信息处理信息每个第一RFID读取器在每个第一频道中产生频道保持信号，并且如果从第一RFID读取器之一接收到频道使用请求或频道返回请求，则停止产生或生成频道保持在与频道使用或返回请求相关的频道中的信号。以这种方式，通过防止第二RFID读取器对第一RFID读取器使用第一频率信道来避免每个RFID读取器之间的冲突。此外，该方法和装置可以通过控制由第一RFID读取器使用的第一频道的数量与第二RFID读取器使用的第二频道的数量的比率来有效地管理频道，根据到使用频率。

2. 发明申请

US20090058613A1 METHOD AND APPARATUS FOR COMMUNICATION BETWEEN READERS HAVING DUAL SENSITIVITY MODES 审中-公开
标题翻译：具有双灵敏度模式的读者之间的通信方法和装置
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。

3. 发明申请

US20080129641A1 ANTENNA APPARATUS FOR LINEARLY POLARIZED DIVERSITY ANTENNA IN RFID READER AND METHOD OF CONTROLLING THE ANTENNA APPARATUS 失效
标题翻译： RFID读取器中线性极化多极天线的天线装置及天线装置的控制方法
公开(公告)号：US20080129641A1
公开(公告)日：2008-06-05
申请号：US11782195
申请日：2007-07-24
申请人： Jong Moon LEE , Nae-Soo KIM , Cheol Sig PYO , Ik Guen CHOI
发明人： Jong Moon LEE , Nae-Soo KIM , Cheol Sig PYO , Ik Guen CHOI
IPC分类号： H01Q21/29
CPC分类号： H01Q1/2216 , H01Q9/0407 , H01Q21/245
摘要： Provided are an antenna apparatus for linearly polarized diversity antennas in a radio frequency identification (RFID) reader, and a method of controlling the antenna apparatus. The antenna apparatus includes: a plurality of linearly polarized diversity antennas disposed to have different directions to one another; a switching unit connecting the linearly polarized diversity antennas to the RFID reader; and a controller controlling the switching unit to selectively activate the linearly polarized diversity antennas.
摘要翻译：提供了一种用于射频识别（RFID）读取器中的线性极化分集天线的天线装置和控制天线装置的方法。天线装置包括：多个线性极化分集天线，被设置为具有彼此不同的方向; 将线性极化分集天线连接到RFID读取器的开关单元; 以及控制器，控制所述切换单元选择性地激活所述线性极化分集天线。

4. 发明申请

US20090238296A1 MULTIPLE ACCESS SYSTEM AND METHOD FOR 60 GHZ WIRELESS COMMUNICATIONS SYSTEM 有权
标题翻译： 60 GHZ无线通信系统的多路访问系统及方法
公开(公告)号：US20090238296A1
公开(公告)日：2009-09-24
申请号：US12479424
申请日：2009-06-05
申请人： Kyeongpyo KIM , Jin Kyeong KIM , Woo Yong LEE , Yong Sun KIM , Nae-Soo KIM , Cheol Sig PYO
发明人： Kyeongpyo KIM , Jin Kyeong KIM , Woo Yong LEE , Yong Sun KIM , Nae-Soo KIM , Cheol Sig PYO
IPC分类号： H04K1/10 , H04L27/06
CPC分类号： H04W72/1252 , H04W74/08 , H04W84/12
摘要： A control apparatus for use in wireless communications includes an antenna unit having antennas, the number of the antennas being equal to a maximum allowable number of connections in a specific frequency band; and a controller for receiving a connection request signal from each terminal attempting to connect to the control apparatus via the antenna unit, and transmitting and receiving a data signal to and from each terminal connected to the control apparatus by using a multiple-input-multiple-output scheme. The controller transmit and receive the data signal to and from each terminal connected to the control apparatus by obtaining a signal value of each antenna based on a predicted channel matrix and the number and types of terminals connected to the control apparatus via the antenna and separating the data signal for each terminal from the signal value according to the multiple-input-multiple-output scheme.
摘要翻译：用于无线通信的控制装置包括具有天线的天线单元，天线的数量等于特定频带中的最大允许连接数; 以及控制器，用于从每个终端接收尝试经由天线单元连接到控制装置的连接请求信号，并且通过使用多输入多重连接方式向连接到控制装置的每个终端发送数据信号和从每个终端接收数据信号，输出方案。控制器通过基于预测的信道矩阵以及通过天线连接到控制装置的终端的数量和类型获得每个天线的信号值来向连接到控制装置的每个终端发送数据信号并从每个终端接收数据信号，根据多输入多输出方案从信号值得到每个终端的数据信号。

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