公开(公告)号：US08054161B2

公开(公告)日：2011-11-08

申请号：US12328385

申请日：2008-12-04

Applicant: Donghan Lee ,  Ji-Hoon Bae ,  Cheng-Hao Quan ,  Kwang-Soo Cho ,  Gil Young Choi ,  Jong-Suk Chae ,  Sang-Gi Kang

Inventor： Donghan Lee ,  Ji-Hoon Bae ,  Cheng-Hao Quan ,  Kwang-Soo Cho ,  Gil Young Choi ,  Jong-Suk Chae ,  Sang-Gi Kang

IPC: H04Q5/22 ,  G08B1/08 ,  H04K3/00 ,  H04B17/00 ,  H04B1/04 ,  H04B1/10

CPC classification number: G06K7/0008 ,  G06K7/10198 ,  H04B5/005 ,  H04B5/0062 ,  H04B17/354 ,  H04L27/34

Abstract: A method and apparatus for suppressing a transmit leakage signal of a radio frequency identification (RFID) reader is provided. The apparatus includes: a first power distributor distributing a transmission signal to output a first transmission signal and a second transmission signal; a second power distributor distributing the second transmission signal to output a third transmission signal and a fourth transmission signal; a first amplitude/phase converter converting an amplitude and a phase of the first transmission signal to generate a first converted signal; a second amplitude/phase converter converting an amplitude and a phase of the third transmission signal to generate a second converted signal; a first power combiner combining the first converted signal with a first leakage signal generated in association with the fourth transmission signal; and a second power combiner combining the second converted signal with a second leakage signal generated in association with the fourth transmission signal.

Abstract translation: 提供一种用于抑制射频识别（RFID）读取器的发送泄漏信号的方法和装置。 该装置包括：分配传输信号以输出第一传输信号和第二传输信号的第一功率分配器; 分配第二传输信号以输出第三传输信号和第四传输信号的第二功率分配器; 转换第一传输信号的幅度和相位以产生第一转换信号的第一幅度/相位转换器; 转换第三发送信号的幅度和相位的第二幅度/相位转换器，以产生第二转换信号; 第一功率组合器，其将所述第一转换信号与与所述第四发送信号相关联地生成的第一泄漏信号组合; 以及第二功率组合器，其将所述第二转换信号与与所述第四发送信号相关联地生成的第二泄漏信号组合。

公开(公告)号：US20110215907A1

公开(公告)日：2011-09-08

申请号：US13041980

申请日：2011-03-07

Applicant: Kwang Soo Cho ,  Chan Won Park ,  Ji Hoon Bae ,  Josef Preishuber-Pfluegl ,  David Tschische

Inventor： Kwang Soo Cho ,  Chan Won Park ,  Ji Hoon Bae ,  Josef Preishuber-Pfluegl ,  David Tschische

IPC: G06K7/01

CPC classification number: G06K7/01

Abstract: Disclosed are a radio frequency identification (RFID) tag capable of supplying an Internet service quickly and conveniently, an operation method thereof, and a system and method for controlling network access based on a mobile RFID. Network access data is generated by communication between an RFID terminal and an RFID tag. The mobile RFID terminal connects with a network gateway by reading the network access data, thereby supplying the Internet service quickly and conveniently.

Abstract translation: 公开了能够快速方便地提供因特网服务的射频识别（RFID）标签，其操作方法，以及用于基于移动RFID控制网络接入的系统和方法。 网络接入数据由RFID终端和RFID标签之间的通信产生。 移动RFID终端通过读取网络访问数据与网络网关连接，从而快速方便地提供互联网服务。

公开(公告)号：US07986229B2

公开(公告)日：2011-07-26

申请号：US11931547

申请日：2007-10-31

Applicant: Junho Yeo ,  Josef Preishuber-Pfluegl ,  Alex Janek ,  Andreas Schuhai ,  Hae-Won Son ,  Jae-Young Jung ,  Hee-Sook Mo ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Junho Yeo ,  Josef Preishuber-Pfluegl ,  Alex Janek ,  Andreas Schuhai ,  Hae-Won Son ,  Jae-Young Jung ,  Hee-Sook Mo ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: G08B1/08

CPC classification number: G06K19/073 ,  G06K19/0701 ,  G06K19/0717 ,  G06K19/0723

Abstract: An apparatus for storing sensing data in a tag and a method thereof are provided. According to the present invention, data measured by the sensor is stored in volatile memory and important data from among the data stored in the volatile memory is stored in non-volatile memory according to a pre-set data loss prevention mechanism so that a battery and the tag including the battery have a longer life and stability of data can be secured.

Abstract translation: 提供一种用于将感测数据存储在标签中的装置及其方法。 根据本发明，由传感器测量的数据存储在易失性存储器中，并且根据预设的数据丢失防止机制将存储在易失性存储器中的数据中的重要数据存储在非易失性存储器中，使得电池和 包括电池的标签具有更长的寿命并且可以确保数据的稳定性。

公开(公告)号：US07978022B2

公开(公告)日：2011-07-12

申请号：US11587068

申请日：2004-12-30

Applicant: Nak-Seon Seong ,  Won-Kyu Choi ,  Ji-Hoon Bae ,  Jong-Moon Lee ,  Cheol-Sig Pyo ,  Chang-Joo Kim

Inventor： Nak-Seon Seong ,  Won-Kyu Choi ,  Ji-Hoon Bae ,  Jong-Moon Lee ,  Cheol-Sig Pyo ,  Chang-Joo Kim

IPC: H01P5/103

CPC classification number: H01P5/103

Abstract: A cable to waveguide transition apparatus having a signal accumulation form of a backshort is disclosed. The cable to waveguide transition apparatus having a signal accumulation form of a backshort, includes: a waveguide; a RF probe for transferring a radio frequency (RF) signal to the waveguide; and a backshort having the signal accumulation form for reflecting the RF signal excited from the RF probe, wherein the backshort reflects a first fundamental frequency signal excited from the RF probe to have a phase identical to a phase of a second fundamental frequency signal excited from the RF probe to an aperture of the waveguide, and reflects a first 2-order harmonic frequency signal excited from the RF probe to have a phase reverse to a phase of a second 2-order harmonic frequency signal excited to an aperture of the waveguide in order to eliminate the 2-order harmonic frequency signal.

Abstract translation: 公开了一种具有回溯信号累积形式的电缆到波导转换装置。 具有回溯信号聚集形式的电缆到波导转换装置包括：波导; 用于将射频（RF）信号传送到波导的RF探针; 以及具有用于反射从RF探针激发的RF信号的信号累积形式的反向信息，其中所述反向信号反射从所述RF探针激发的第一基频信号具有与从所述RF探针激励的第二基频信号的相位相同的相位 RF探针到波导的孔径，并且反射从RF探针激发的第一二阶谐波频率信号，使得与向波导的孔径激励的第二二阶谐波频率信号的相位相反相位 以消除二阶谐波频率信号。

公开(公告)号：US20110148585A1

公开(公告)日：2011-06-23

申请号：US12886689

申请日：2010-09-21

Applicant: Ji Hoon Bae ,  Cheng Hao Quan ,  Dong Han Lee ,  Chan Won Park ,  Won Kyu Choi ,  Kwang Soo Cho ,  Man Sik Park ,  Gil Young Choi ,  Jong Suk Chae

Inventor： Ji Hoon Bae ,  Cheng Hao Quan ,  Dong Han Lee ,  Chan Won Park ,  Won Kyu Choi ,  Kwang Soo Cho ,  Man Sik Park ,  Gil Young Choi ,  Jong Suk Chae

IPC: G06K7/01

CPC classification number: G06K7/0008 ,  G06K7/10069

Abstract: Disclosed are a passive RFID (Radio Frequency Identification) system and method capable of recognizing a great deal of tags at a high speed. A reader of a passive RFID system, including: a processor dividing slots and subchannels to configure a round, recognizing subchannels that are not involved in a collision and interference by the slots, and changing the subchannels that are not involved in a collision and interference, into a sleep state; a transmission unit encoding a command generated through the processor, performing an amplitude jitter modulation on the encoded command, and transmitting the modulated command; and a reception unit acquiring and demodulating tag signals received through a plurality of subchannels by the slots, and providing the demodulated tag signals to the processor.

Abstract translation: 公开了能够高速识别大量标签的无源RFID（射频识别）系统和方法。 一种无源RFID系统的阅读器，包括：处理器分割时隙和子信道以配置轮回，识别未被时隙的冲突和干扰的子信道，以及改变不涉及冲突和干扰的子信道， 进入睡眠状态; 编码通过所述处理器生成的命令的传输单元，对所述编码命令执行振幅抖动调制，以及发送所述调制命令; 以及接收单元，通过所述时隙获取并解调通过多个子信道接收的标签信号，并将解调的标签信号提供给处理器。

公开(公告)号：US20100246738A1

公开(公告)日：2010-09-30

申请号：US12608862

申请日：2009-10-29

Applicant: Ji-hoon BAE ,  Gil-young CHOI ,  Dong-han LEE ,  Hoon-gee YANG ,  Jong-suk CHAE

Inventor： Ji-hoon BAE ,  Gil-young CHOI ,  Dong-han LEE ,  Hoon-gee YANG ,  Jong-suk CHAE

IPC: H04L7/02

CPC classification number: H04L7/042 ,  G06K19/0723

Abstract: A passive phase jitter modulation (PJM) tag is charged with power in a continuous wave (CW) section. When receiving a command from a reader, the passive PJM tag must recognize the command and determine exactly when to begin demodulating the command. Only then can the passive PJM tag demodulate the command. To this end, a synchronization apparatus for accurately demodulating a signal input to a PJM tag includes a plurality of correlators correlating a received phase jitter-modulated signal with a template of an internal matched filter which is in the same form as at least a portion of a modified frequency modulation (MFM) flag.

Abstract translation: 无源相位抖动调制（PJM）标签在连续波（CW）部分中被供电。 当从读取器接收到命令时，被动PJM标签必须识别该命令并准确地确定何时开始解调该命令。 无源PJM标签只能解调该命令。 为此，用于精确地解调输入到PJM标签的信号的同步装置包括将接收到的相位抖动调制信号与内部匹配滤波器的模板相关联的多个相关器，所述内部匹配滤波器的模板具有与至少一部分 修改的频率调制（MFM）标志。

公开(公告)号：US20100026460A1

公开(公告)日：2010-02-04

申请号：US12328385

申请日：2008-12-04

Applicant: Donghan LEE ,  Ji-Hoon BAE ,  Cheng-Hao QUAN ,  Kwang-Soo CHO ,  Gil Young CHOI ,  Jong-Suk CHAE ,  Sang-Gi KANG

Inventor： Donghan LEE ,  Ji-Hoon BAE ,  Cheng-Hao QUAN ,  Kwang-Soo CHO ,  Gil Young CHOI ,  Jong-Suk CHAE ,  Sang-Gi KANG

IPC: H04Q5/22 ,  H03M1/66

CPC classification number: G06K7/0008 ,  G06K7/10198 ,  H04B5/005 ,  H04B5/0062 ,  H04B17/354 ,  H04L27/34

Abstract: A method and apparatus for suppressing a transmit leakage signal of a radio frequency identification (RFID) reader is provided. The apparatus includes: a first power distributor distributing a transmission signal to output a first transmission signal and a second transmission signal; a second power distributor distributing the second transmission signal to output a third transmission signal and a fourth transmission signal; a first amplitude/phase converter converting an amplitude and a phase of the first transmission signal to generate a first converted signal; a second amplitude/phase converter converting an amplitude and a phase of the third transmission signal to generate a second converted signal; a first power combiner combining the first converted signal with a first leakage signal generated in association with the fourth transmission signal; and a second power combiner combining the second converted signal with a second leakage signal generated in association with the fourth transmission signal.

Abstract translation: 提供一种用于抑制射频识别（RFID）读取器的发送泄漏信号的方法和装置。 该装置包括：分配传输信号以输出第一传输信号和第二传输信号的第一功率分配器; 分配第二传输信号以输出第三传输信号和第四传输信号的第二功率分配器; 转换第一传输信号的幅度和相位以产生第一转换信号的第一幅度/相位转换器; 转换第三发送信号的幅度和相位的第二幅度/相位转换器，以产生第二转换信号; 第一功率组合器，其将所述第一转换信号与与所述第四发送信号相关联地生成的第一泄漏信号组合; 以及第二功率组合器，其将所述第二转换信号与与所述第四发送信号相关联地生成的第二泄漏信号组合。

公开(公告)号：US07592917B2

公开(公告)日：2009-09-22

申请号：US11592420

申请日：2006-11-03

Applicant: Chenghao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： Chenghao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: G08B13/14

CPC classification number: H04L63/0853 ,  H04W8/26 ,  H04W12/02 ,  H04W12/06 ,  H04W12/08 ,  H04W28/14 ,  H04W48/02

Abstract: Provided is a Radio Frequency identification (RFID) system and method for protecting information. The system includes: an identification information storing unit which includes identification information and generates an interrupt/interference signal to block access without permission; an RFID calling unit which reads information of the identification information storing unit by loading a basic protocol and a security protocol for recognizing the identification information storing unit; and a storing unit which registers and stores information required for authentication between the RFID calling unit and the identification information storing unit, and information required for access control.

Abstract translation: 提供了一种用于保护信息的射频识别（RFID）系统和方法。 该系统包括：识别信息存储单元，其包括识别信息，并产生中断/干扰信号，以在未经许可的情况下阻止访问; RFID呼叫单元，其通过加载基本协议和用于识别识别信息存储单元的安全协议来读取识别信息存储单元的信息; 以及存储单元，其登记并存储RFID呼叫单元与识别信息存储单元之间的认证所需的信息，以及访问控制所需的信息。

公开(公告)号：US20080122581A1

公开(公告)日：2008-05-29

申请号：US11746306

申请日：2007-05-09

Applicant: Ji-Hoon BAE ,  Hee-Sook MO ,  Dong-Han LEE ,  Cheng-Hao QUAN ,  Chan-Won PARK ,  Gil-Young CHOI ,  Cheol-Sig PYO ,  Jong-Suk CHAE

Inventor： Ji-Hoon BAE ,  Hee-Sook MO ,  Dong-Han LEE ,  Cheng-Hao QUAN ,  Chan-Won PARK ,  Gil-Young CHOI ,  Cheol-Sig PYO ,  Jong-Suk CHAE

IPC: H04Q5/22

CPC classification number: G06K7/0008 ,  G06K7/10356 ,  H04W74/08

Abstract: Provided is a Radio Frequency Identification (RFID) reader that can minimize collision among RFID readers in an environment where there are a plurality of RFID readers within a limited operating environment by making each RFID reader select a channel at different delay time based on a random value, and a method for controlling operation of the RFID reader. The RFID reader includes a random value generating unit; a reader control unit for adaptively deciding a counter value for generating the random value; an anti-collision unit for preventing collision among a plurality of tags; a reader transmitting unit for generating a reader command message determined by the anti-collision unit, encoding the reader command message, and modulating the reader command message; a reader receiving unit for demodulating and decoding a tag signal; and a channel operation control unit for selecting a channel to be used for the communication with the tag.

Abstract translation: 提供了一种射频识别（RFID）读取器，其可以在有限操作环境中存在多个RFID读取器的环境中最小化RFID读取器之间的冲突，使得每个RFID读取器基于随机值在不同的延迟时间选择信道 以及用于控制RFID读取器的操作的方法。 RFID读取器包括随机值生成单元; 读取器控制单元，用于自适应地确定用于生成随机值的计数器值; 用于防止多个标签之间的碰撞的防碰撞单元; 读取器发送单元，用于生成由反冲突单元确定的读取器命令消息，对读取器命令消息进行编码，以及调制读取器命令消息; 读取器接收单元，用于解调和解码标签信号; 以及频道操作控制单元，用于选择要用于与标签进行通信的频道。

公开(公告)号：US20070096877A1

公开(公告)日：2007-05-03

申请号：US11497749

申请日：2006-08-02

Applicant: ChengHao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

Inventor： ChengHao Quan ,  Hee-Sook Mo ,  Dong-Han Lee ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC: H04Q5/22 ,  H04J3/00

CPC classification number: G06K7/0008 ,  H04W8/005 ,  H04W74/04 ,  H04W74/08

Abstract: Provided is a method for estimating the number of tags in a slotted Aloha-based RFID system, which can estimate the number of tags through a new statistical average scheme using the number of slots, the measured number of empty slots, and the measured number of ID slots. The estimating method includes the steps of: a) setting the number (N) of slots, the measured number (c0) of empty slots, and the measured number (c1) of ID slots as parameters; and estimating the number (n) of the tags by substituting the set values into n=(N−1)/(c0/c1).

Abstract translation: 提供了一种用于估计基于时隙的基于Aloha的RFID系统中的标签的数量的方法，其可以使用新的统计平均方案来估计标签的数量，该方案使用时隙数，所测量的空时隙数， ID插槽。 所述估计方法包括以下步骤：a）设置时隙的数目（N），空时隙的测量次数（c <0> 0）和所测量的数量（c <1 / >）的ID插槽作为参数; 以及通过将所述设置值替换为n =（N-1）/（c 0/1 / c 1）来估计标签的数量（n）。