公开(公告)号：US08779896B2

公开(公告)日：2014-07-15

申请号：US12833454

申请日：2010-07-09

Applicant: Dong-Beom Shin ,  Jae-young Jung ,  Sang Yeoun Lee ,  Gil Young Choi ,  Heyung Sub Lee ,  Jong-Suk Chae

Inventor： Dong-Beom Shin ,  Jae-young Jung ,  Sang Yeoun Lee ,  Gil Young Choi ,  Heyung Sub Lee ,  Jong-Suk Chae

IPC: H04Q5/22

CPC classification number: G06K7/0008 ,  H04Q2213/13095

Abstract: Provided are an RFID reader and a method for controlling a gain thereof. The RFID reader includes an amplifier and an AGC circuit. The amplifier controls the gain of an RX signal, received from an RFID tag, in response to an AGC signal. The AGC circuit measures a signal level in an ante-preamble period of the RX signal and generates an AGC signal to control the gain of the RX signal, on the basis of the measured signal level.

Abstract translation: 提供RFID读取器和用于控制其增益的方法。 RFID读取器包括放大器和AGC电路。 放大器响应于AGC信号控制从RFID标签接收的RX信号的增益。 AGC电路测量RX信号的前同步码周期中的信号电平，并且基于测量的信号电平产生AGC信号以控制RX信号的增益。

公开(公告)号：US20130278309A1

公开(公告)日：2013-10-24

申请号：US13605554

申请日：2012-09-06

Applicant: Hyunseok KIM ,  Su Na Choi ,  Heyung Sub Lee ,  Cheol Sig Pyo

Inventor： Hyunseok KIM ,  Su Na Choi ,  Heyung Sub Lee ,  Cheol Sig Pyo

IPC: H03L7/06

CPC classification number: G06K19/0726 ,  G06K19/0722

Abstract: In integrated circuit chips that are used for RFID, a method of calibrating an operation frequency that is generated in an operation frequency generator and a semiconductor wafer including a calibration circuit are provided. The method of calibrating an operation frequency of integrated circuit chips includes: supplying DC power to the integrated circuit chips; selecting an integrated circuit chip to perform calibration of an operation frequency; receiving an operation frequency that is generated in the selected integrated circuit chip; calculating a difference between a phase of the operation frequency and a phase of a calibration target frequency; generating a frequency calibration value of the operation frequency using the phase difference; transmitting a control signal including the frequency calibration value to the integrated circuit chip; and releasing a selection of the integrated circuit chip in which calibration of the operation frequency is complete.

Abstract translation: 在用于RFID的集成电路芯片中，提供校准在操作频率发生器中产生的操作频率的方法和包括校准电路的半导体晶片。 校准集成电路芯片的工作频率的方法包括：向集成电路芯片提供直流电力; 选择集成电路芯片来执行操作频率的校准; 接收在所选集成电路芯片中产生的工作频率; 计算操作频率的相位和校准目标频率的相位之间的差; 使用相位差产生运转频率的频率校准值; 将包括所述频率校准值的控制信号发送到所述集成电路芯片; 并且释放其中操作频率的校准完成的集成电路芯片的选择。

公开(公告)号：US08401053B2

公开(公告)日：2013-03-19

申请号：US12562105

申请日：2009-09-17

Applicant: Jong-sub Cha ,  Seung-il Myong ,  Heyung-sub Lee ,  Sang-hyun Mo ,  Jong-suk Chae

Inventor： Jong-sub Cha ,  Seung-il Myong ,  Heyung-sub Lee ,  Sang-hyun Mo ,  Jong-suk Chae

IPC: H04B1/00

CPC classification number: H04J13/10 ,  H04B1/707 ,  H04J13/0022

Abstract: An active radio frequency identification (RFID) apparatus having an additional transmitter in addition to a single transmitter is provided. The active RFID apparatus includes a first transmitter including a first pseudo noise (PN) code generator to generate a direct sequence spread spectrum (DSSS) introduced by ISO/IEC (International Organization for Standardization/International Electrotechnical Commission) 24730-2 or ISO/IEC 18185-5 type B; and a second transmitter including a second PN code generator to perform an AND operation on an initial value and a fed back value and shift the resultant value of the AND operation, to perform an XOR operation on particular bits from among the shifted bits and to perform an XOR operation again on the shifted bits and the resulting value of the XOR operation to finally generate a PN code. Accordingly, where an additional PN code is added besides an existing PN code, a PN code having excellent auto correlation characteristics allowing discrimination of the PN code itself and cross-correlation characteristics providing a code discrimination ability with respect to another code can be generated.

Abstract translation: 提供了除了单个发射机之外还具有附加发射机的有源射频识别（RFID）装置。 有源RFID装置包括第一发射机，其包括第一伪噪声（PN）码发生器，以产生由ISO / IEC（国际标准化组织/国际电工委员会）24730-2或ISO / IEC引入的直接序列扩频（DSSS） 18185-5型B; 以及第二发送器，包括第二PN码发生器，用于对初始值和反馈值执行AND运算，并且移位AND运算的结果值，以对从移位中的特定比特执行异或运算，并执行 对移位的位再次进行XOR操作，并且产生XOR运算的结果值，以最终生成PN码。 因此，除了现有的PN码之外附加附加的PN码，可以产生具有能够区分PN码本身的优良自相关特性的PN码和提供相对于其他码的码识别能力的互相关特性。

公开(公告)号：US08274374B2

公开(公告)日：2012-09-25

申请号：US12265205

申请日：2008-11-05

Applicant: Hyunseok Kim ,  Su Na Choi ,  Heyung Sub Lee ,  Nak Seon Seong ,  Cheol Sig Pyo ,  Jong-Suk Chae

Inventor： Hyunseok Kim ,  Su Na Choi ,  Heyung Sub Lee ,  Nak Seon Seong ,  Cheol Sig Pyo ,  Jong-Suk Chae

IPC: H04Q5/22 ,  G08B13/14 ,  G04F1/00

CPC classification number: G06K7/0008

Abstract: Disclosed is a synchronization method between a reader and tag according to an example embodiment, the method including: transmitting, by the reader, a first write command message to the tag at a first time; detecting, by the tag, the first write command message from the reader at a second time and transmitting a first response message to the reader in response to the first write message; transmitting, by the reader, a second write command message including first time information of the first time to the tag; and correcting, by the tag, a clock offset using a difference between the first time and the second time.

Abstract translation: 公开了根据示例实施例的读取器和标签之间的同步方法，所述方法包括：由读取器在第一时间向标签发送第一写入命令消息; 通过标签在第二时间从读取器检测第一写入命令消息，并响应于第一写入消息向读取器发送第一响应消息; 由读取器发送包含第一次的第一时间信息到标签的第二写入命令消息; 以及使用所述第一时间和所述第二时间之间的差异，通过所述标签来校正时钟偏移。

公开(公告)号：US20110215908A1

公开(公告)日：2011-09-08

申请号：US13042263

申请日：2011-03-07

Applicant: Sang Yeoun LEE ,  Heyung Sub LEE ,  You Sung KANG ,  Kang Bok LEE ,  Su Na CHOI ,  Hyun Seok KIM ,  Dong Beom SHIN ,  Doo Ho CHOI

Inventor： Sang Yeoun LEE ,  Heyung Sub LEE ,  You Sung KANG ,  Kang Bok LEE ,  Su Na CHOI ,  Hyun Seok KIM ,  Dong Beom SHIN ,  Doo Ho CHOI

IPC: G06K7/01

CPC classification number: G06K7/01

Abstract: Disclosed are a radio secure reader and a radio secure tag for supporting a secure mode and a normal mode. The radio secure reader for controlling an operation mode of the radio secure tag may include a reader modem to receive the operation mode from the radio secure tag, and a reader processing unit to identify the received operation mode as a normal mode or a secure mode, and to control the radio secure tag based on the identified operation mode.

Abstract translation: 公开了一种用于支持安全模式和正常模式的无线电安全读取器和无线电安全标签。 用于控制无线电安全标签的操作模式的无线电安全读取器可以包括从无线电安全标签接收操作模式的读取器调制解调器和用于将接收到的操作模式识别为正常模式或安全模式的读取器处理单元， 并且基于所识别的操作模式来控制无线电安全标签。

公开(公告)号：US20110181392A1

公开(公告)日：2011-07-28

申请号：US12694893

申请日：2010-01-27

Applicant: Jong Sub CHA ,  Sang Hyun Mo ,  Heyung Sub Lee

Inventor： Jong Sub CHA ,  Sang Hyun Mo ,  Heyung Sub Lee

IPC: G08B5/22

CPC classification number: G01S13/825 ,  G06K7/0008

Abstract: Provided are a real-time locating systems, a reader, an RFID tag and a driving method of the RFID tag for locating. The locating system includes an RFID tag, a plurality of readers, and a location processor. The RFID tag outputs a first or second transmission message frame according to whether value added information exists. The readers are disposed at different locations, receive and analyze the first or second transmission message frame to transmit extracted information and reception time information corresponding to the extracted information to a location processor. The location processor analyzes the information which is extracted through the readers and the reception time information to calculate location information or the value added information related to the RFID tag.

Abstract translation: 提供了用于定位的RFID标签的实时定位系统，读取器，RFID标签和驱动方法。 定位系统包括RFID标签，多个读取器和位置处理器。 RFID标签根据增值信息是否存在输出第一或第二传输消息帧。 读取器设置在不同的位置，接收和分析第一或第二传输消息帧以将提取的信息和与提取的信息相对应的接收时间信息发送到位置处理器。 位置处理器分析通过读取器提取的信息和接收时间信息来计算与RFID标签相关的位置信息或增值信息。

公开(公告)号：US20110140853A1

公开(公告)日：2011-06-16

申请号：US12819345

申请日：2010-06-21

Applicant: Jae Young JUNG ,  Dong Beom Shin ,  Sang Yeoun Lee ,  Gil Young Choi ,  Heyung Sub Lee ,  Jong Suk Chae

Inventor： Jae Young JUNG ,  Dong Beom Shin ,  Sang Yeoun Lee ,  Gil Young Choi ,  Heyung Sub Lee ,  Jong Suk Chae

IPC: H04Q5/22

CPC classification number: G06K7/10217

Abstract: The present invention relates to an RFID reader and a signal receiving method thereof. The RFID reader according to one embodiment of the present invention down-converts transmission leakage signals introduced into a reader receiver and then suppresses them through a band stop filter in a low frequency band and up-converts them, thereby making it possible to effectively suppress the transmission leakage signals.

Abstract translation: RFID读取器及其信号接收方法技术领域本发明涉及RFID读取器及其信号接收方法。 根据本发明的一个实施例的RFID读取器将引入到读取器接收器中的传输泄漏信号降频，然后通过低频带中的带阻滤波器对其进行上变频，从而可以有效地抑制 传输泄漏信号。

公开(公告)号：US20100265070A1

公开(公告)日：2010-10-21

申请号：US12808131

申请日：2008-12-08

Applicant: Dong-Beom Shin ,  Kwang-Soo Cho ,  Heyung Sub Lee ,  Cheol Sig Pyo ,  KyungHi Chang ,  In-Chan Song ,  Fan Xiao

Inventor： Dong-Beom Shin ,  Kwang-Soo Cho ,  Heyung Sub Lee ,  Cheol Sig Pyo ,  KyungHi Chang ,  In-Chan Song ,  Fan Xiao

IPC: G08B13/14

CPC classification number: G06K7/0008 ,  G06K7/10039 ,  H04W24/00 ,  H04W72/00

Abstract: Disclosed is an apparatus and method for preventing a collision in an RFID system, the method including: transmitting a Query to at least one tag, verifying whether an adjustment of a slot counter is required based on a response received from the tag, adjusting the slot counter when the verifying verifies that the adjustment of the slot counter is required, and transmitting the adjusted slot counter to the tag using a QueryAdjust regardless of whether a current frame is completed.

Abstract translation: 本发明公开了一种用于防止RFID系统中的碰撞的装置和方法，所述方法包括：基于从标签接收到的响应，向至少一个标签发送查询，验证是否需要调整时隙计数器，调整时隙 计数器，当验证验证是否需要调整槽计数器，并且使用QueryAdjust将调整后的槽计数器发送到标签，而不管当前帧是否完成。

公开(公告)号：US20100125761A1

公开(公告)日：2010-05-20

申请号：US12465579

申请日：2009-05-13

Applicant: Seok Bong HYUN ,  Hee Tae LEE ,  Kyung Hwan PARK ,  Sung Weon KANG ,  Heyung Sub LEE

Inventor： Seok Bong HYUN ,  Hee Tae LEE ,  Kyung Hwan PARK ,  Sung Weon KANG ,  Heyung Sub LEE

IPC: G06F11/00

CPC classification number: G01R31/318511 ,  G06K19/0722

Abstract: A system and method for wafer level adjusting of IC chips are disclosed. The system and method for a wafer level adjustment of IC chips connect the analog circuits of the IC chip with the adjustment controller outside the semiconductor wafer via the probing region and the signal transmission region outside the IC chip, measure and adjust the performance of the IC chip by the adjustment controller, and then, only store final adjustment data in the adjustment memory of the IC chip. Accordingly, it is possible to reduce the area of adjustment circuits added to an integrated circuit chip such as an RFID tag chip and adjust the performance of chips at a wafer level.

Abstract translation: 公开了一种用于晶片级调整IC芯片的系统和方法。 IC芯片的晶片级调整的系统和方法通过IC芯片外的探测区域和信号传输区域将IC芯片的模拟电路与半导体晶片外部的调节控制器连接，测量和调整IC的性能 芯片由调节控制器，然后只存储最终调整数据在IC芯片的调整存储器中。 因此，可以减少添加到诸如RFID标签芯片的集成电路芯片的调整电路的面积，并且在晶片级调整芯片的性能。

公开(公告)号：US07610608B2

公开(公告)日：2009-10-27

申请号：US10739236

申请日：2003-12-17

Applicant: Yongtae Kim ,  Kang Bok Lee ,  Heyung Sub Lee ,  Hyeong Ho Lee

Inventor： Yongtae Kim ,  Kang Bok Lee ,  Heyung Sub Lee ,  Hyeong Ho Lee

IPC: H04N7/173

CPC classification number: H04N21/4405 ,  H04N7/17318 ,  H04N21/2347 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4622 ,  H04N21/47202 ,  H04N21/4782 ,  H04N21/6125

Abstract: Provided is a digital broadcast system that receives digital broadcast services on a passive optical network (PON). The data separator separates a signal input thereinto from the outside into an Ethernet frame for data service and an Ethernet frame for digital broadcast service. The Ethernet switch transmits the Ethernet frame for data service to an optical network terminal (ONT) provided in the user's home according to header information of the Ethernet frame for data service. The channel request processor receives the user's channel selection request information and user identification (ID) information from the ONT. The digital broadcast processor transmits the Ethernet frame for digital broadcast service, corresponding to the digital broadcast channel selected by the user, to the user's ONT, by using a part of bandwidth assigned for an existing line.

Abstract translation: 提供了一种在无源光网络（PON）上接收数字广播服务的数字广播系统。 数据分离器将其中输入的信号与外部分离成用于数据服务的以太网帧和用于数字广播服务的以太网帧。 以太网交换机根据数据业务以太网帧的头信息，将用于数据业务的以太网帧发送到用户家庭中提供的光网络终端（ONT）。 信道请求处理器从ONT接收用户的频道选择请求信息和用户标识（ID）信息。 数字广播处理器通过使用分配给现有线路的带宽的一部分，将与用户选择的数字广播频道对应的数字广播服务的以太网帧发送给用户的ONT。