公开(公告)号：US20070139198A1

公开(公告)日：2007-06-21

申请号：US11487564

申请日：2006-07-17

申请人： Dong-sik Shim ,  Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song

发明人： Dong-sik Shim ,  Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song

IPC分类号： G08B13/14 ,  H04Q5/22 ,  G08B23/00

CPC分类号： G06K19/0723 ,  G06K19/0701

摘要： Provided are an RFID tag capable of limiting an over-voltage and a method for controlling an over-voltage thereof. The RFID tag includes: an antenna unit receiving external electromagnetic waves to induce an input voltage; a voltage generator rectifying the input voltage to generate a driving voltage; a voltage limiter adaptively turned on and/or off depending on whether the input voltage is high or low to limit an intensity of the input voltage input into the voltage generator; and a logic controller controlling the antenna unit to generate authentication information based on the driving voltage and transmit the authentication information.

摘要翻译： 提供能够限制过电压的RFID标签和用于控制其过电压的方法。 RFID标签包括：天线单元，接收外部电磁波以感应输入电压; 整流输入电压的电压发生器产生驱动电压; 电压限制器根据输入电压是高还是低自适应地导通和/或截止以限制输入到电压发生器的输入电压的强度; 以及逻辑控制器，其控制所述天线单元，以基于所述驱动电压生成认证信息，并发送所述认证信息。

公开(公告)号：US20060187062A1

公开(公告)日：2006-08-24

申请号：US11356023

申请日：2006-02-17

申请人： Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： G08B13/14 ,  G08B23/00

CPC分类号： G06K19/0723 ,  G06K19/0713

摘要： Disclosed is a rectifier for supplying double voltage and an RFID tag thereof. The rectifier includes a charging part for charging an input voltage induced to input ends by a received radio frequency (RF) signal; a power provider for charging a sum voltage corresponding to the sum of the input voltage induced to the input end and the voltage charged in the charging part as a power voltage, and discharging the charged power voltage to provide a direct current (DC) power; and a switching part for switching to supply the input voltage induced at the input ends to the charging part during a first interval and switching to supply the sum voltage to the power provider during a second interval. Accordingly, double voltage can be supplied to other electric elements formed in the RFID tag and overcurrent caused by overvoltage can be prevented from flowing into the elements.

摘要翻译： 公开了一种用于提供双电压的整流器及其RFID标签。 整流器包括用于通过接收的射频（RF）信号对感应到输入端的输入电压进行充电的充电部分; 电源提供器，用于对与所述输入端感应的输入电压和所述充电部中充电的电压的和相对应的和电压作为电源电压进行充电，并且对所述充电电力电压进行放电以提供直流（DC）电力; 以及切换部，用于切换以在第一间隔期间将在输入端感应的输入电压提供给充电部分，并且在第二间隔期间切换以将和电压提供给电力供应商。 因此，可以向形成在RFID标签中的其他电气元件提供双电压，并且可以防止由过电压引起的过电流流入元件。

公开(公告)号：US07688561B2

公开(公告)日：2010-03-30

申请号：US11360615

申请日：2006-02-24

申请人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： H02H3/20 ,  H02H9/04

CPC分类号： H03K19/00315 ,  H03K17/08128

摘要： An over-voltage protection circuit (i.e., a limiter), includes: a first switching block having a plurality of semiconductor elements, serially connected to each other and turned on in sequence according to the magnitude of an input voltage; and a plurality of second switching blocks, in which each of the second switching blocks includes a pair of serially connected semiconductor elements having different current properties. The second switching blocks are connected in parallel to the first switching block. By minimizing a leakage current when an input voltage is below a reference voltage and by maximizing a leakage current when the input voltage is above the reference voltage, the limiter prevents excessive current from flowing into the RF tag circuit when the input voltage is below the reference voltage, and ensures that a sufficient amount of current is supplied to a regulator when the input voltage is below the reference voltage.

摘要翻译： 过压保护电路（即限幅器）包括：具有多个半导体元件的第一开关块，它们相互串联并根据输入电压的大小依次导通; 以及多个第二切换块，其中每个第二切换块包括具有不同电流特性的一对串联连接的半导体元件。 第二切换块与第一切换块并联连接。 当输入电压低于参考电压时，通过使漏电流最小化，并且当输入电压高于参考电压时使泄漏电流达到最大值，当输入电压低于参考电压时，限幅器可防止过大的电流流入RF标签电路 电压，并且确保当输入电压低于参考电压时，足够量的电流被提供给调节器。

公开(公告)号：US07339485B2

公开(公告)日：2008-03-04

申请号：US11356023

申请日：2006-02-17

申请人： Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： G08B21/00 ,  H04Q13/14 ,  H04Q7/00

CPC分类号： G06K19/0723 ,  G06K19/0713

摘要： Disclosed is a rectifier for supplying double voltage and an RFID tag thereof. The rectifier includes a charging part for charging an input voltage induced to input ends by a received radio frequency (RF) signal; a power provider for charging a sum voltage corresponding to the sum of the input voltage induced to the input end and the voltage charged in the charging part as a power voltage, and discharging the charged power voltage to provide a direct current (DC) power; and a switching part for switching to supply the input voltage induced at the input ends to the charging part during a first interval and switching to supply the sum voltage to the power provider during a second interval. Accordingly, double voltage can be supplied to other electric elements formed in the RFID tag and overcurrent caused by overvoltage can be prevented from flowing into the elements.

摘要翻译： 公开了一种用于提供双电压的整流器及其RFID标签。 整流器包括用于通过接收的射频（RF）信号对感应到输入端的输入电压进行充电的充电部分; 电源提供器，用于对与所述输入端感应的输入电压和所述充电部中充电的电压的和相对应的和电压作为电源电压进行充电，并且对所述充电电力电压进行放电以提供直流（DC）电力; 以及切换部，用于切换以在第一间隔期间将在输入端感应的输入电压提供给充电部分，并且在第二间隔期间切换以将和电压提供给电力供应商。 因此，可以向形成在RFID标签中的其他电气元件提供双电压，并且可以防止由过电压引起的过电流流入元件。

公开(公告)号：US07978077B2

公开(公告)日：2011-07-12

申请号：US11359612

申请日：2006-02-23

申请人： Dong-hyun Lee ,  Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Sung-oh Kim ,  Kyeong-soon Cho

发明人： Dong-hyun Lee ,  Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Sung-oh Kim ,  Kyeong-soon Cho

IPC分类号： G08B13/14

CPC分类号： H04B5/02 ,  H04B5/0062

摘要： A radio frequency identification reader and a radio frequency identification tag that use an ultrahigh frequency band, and action methods of the radio frequency identification reader and the radio frequency identification tag. The radio frequency identification reader includes: a data generator generating data to be transmitted to a radio frequency identification tag; if a command to control the radio frequency identification tag has to be authenticated, a reader controller controlling the data generator to generate the data including an authentication code; and a reader transmitter transmitting the data to the radio frequency identification tag. As a result, securing of communications of a specific command between the radio frequency identification reader and the radio frequency identification tag can be reinforced.

摘要翻译： 使用超高频带的射频识别读取器和射频识别标签，射频识别读取器的动作方法和射频识别标签。 射频识别读取器包括：数据生成器，生成要发送到射频识别标签的数据; 如果要控制射频识别标签的命令必须被认证，则读取器控制器控制数据发生器以产生包括认证码的数据; 以及将数据发送到射频识别标签的读取器发送器。 结果，可以加强在射频识别读取器和射频识别标签之间确保特定命令的通信。

公开(公告)号：US20060197651A1

公开(公告)日：2006-09-07

申请号：US11359612

申请日：2006-02-23

申请人： Dong-hyun Lee ,  Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Sung-oh Kim ,  Kyeong-soon Cho

发明人： Dong-hyun Lee ,  Ja-nam Ku ,  Young-hoon Min ,  Il-jong Song ,  Sung-oh Kim ,  Kyeong-soon Cho

IPC分类号： G05B19/00 ,  H04Q5/22

CPC分类号： H04B5/02 ,  H04B5/0062

摘要： A radio frequency identification reader and a radio frequency identification tag that use an ultrahigh frequency band, and action methods of the radio frequency identification reader and the radio frequency identification tag. The radio frequency identification reader includes: a data generator generating data to be transmitted to a radio frequency identification tag; if a command to control the radio frequency identification tag has to be authenticated, a reader controller controlling the data generator to generate the data including an authentication code; and a reader transmitter transmitting the data to the radio frequency identification tag. As a result, securing of communications of a specific command between the radio frequency identification reader and the radio frequency identification tag can be reinforced.

摘要翻译： 使用超高频带的射频识别读取器和射频识别标签，射频识别读取器的动作方法和射频识别标签。 射频识别读取器包括：数据生成器，生成要发送到射频识别标签的数据; 如果要控制射频识别标签的命令必须被认证，则读取器控制器控制数据发生器以产生包括认证码的数据; 以及将数据发送到射频识别标签的读取器发送器。 结果，可以加强在射频识别读取器和射频识别标签之间确保特定命令的通信。

公开(公告)号：US20060197615A1

公开(公告)日：2006-09-07

申请号：US11341607

申请日：2006-01-30

申请人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： H03K3/03

CPC分类号： H03K3/0315 ,  H03K3/012

摘要： An ultra low power oscillator includes a current supply unit converting current supplied from an external bias power source into first and second low currents of predetermined amounts, and an oscillation unit oscillating and creating a predetermined frequency signal if the first and second low currents are supplied from the current supply unit. The oscillation unit includes a plurality of inverters connected in series, and the current supply unit includes a current limit circuit composed of NMOS and PMOS transistors connected to the respective inverters. The current flowing when the transistors in the respective inverters are simultaneously turned on is limited, and thus the power consumption can be reduced.

摘要翻译： 超低功率振荡器包括电流供应单元，其将从外部偏置电源提供的电流转换成预定量的第一和第二低电流;以及如果从第一和第二低电流供应振荡单元振荡并产生预定频率信号 当前供应单位。 振荡单元包括串联连接的多个反相器，并且电流供给单元包括由连接到各个反相器的NMOS和PMOS晶体管组成的限流电路。 当各个逆变器中的晶体管同时导通时流动的电流受到限制，从而能够降低功耗。

公开(公告)号：US20060186943A1

公开(公告)日：2006-08-24

申请号：US11358029

申请日：2006-02-22

申请人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： H03L5/00

CPC分类号： H03K19/01855

摘要： A voltage transform circuit transforms a transferred voltage to a desired magnitude of voltage. The voltage transform circuit includes: a first power supply unit for providing a digital voltage (Vdd-1) of a first magnitude; a second power supply unit for providing an analog voltage (Vaa-2) of a second magnitude; and a voltage transform unit formed with a plurality of MOS transistors, wherein the MOS transistors operate to transfer the digital voltage (Vdd-1) from the first power supply unit, and output a digital voltage (Vdd-3) of a third magnitude corresponding to the analog voltage (Vaa-2) transferred from the second power supply unit. By using an analog voltage (Vaa-2) that is higher than the digital voltage (Vdd-1), it becomes possible to increase the magnitude of the output digital voltage (Vdd-3). By supplying this high digital voltage (Vdd-3) to a charge pump, the level of the charge pump is lowered.

摘要翻译： 电压变换电路将传送的电压转换成期望的电压大小。 电压变换电路包括：用于提供第一量值的数字电压（Vdd-1）的第一电源单元; 第二电源单元，用于提供第二大小的模拟电压（Vaa- 2）; 以及形成有多个MOS晶体管的电压变换单元，其中所述MOS晶体管操作以从所述第一电源单元传送所述数字电压（Vdd-1），并输出对应于第三电压的数字电压（Vdd-3） 到从第二电源单元传送的模拟电压（Vaa- 2）。 通过使用高于数字电压（Vdd-1）的模拟电压（Vaa- 2），可以增加输出数字电压（Vdd-3）的幅度。 通过将这种高数字电压（Vdd-3）提供给电荷泵，电荷泵的电平降低。

公开(公告)号：US07309978B2

公开(公告)日：2007-12-18

申请号：US11359505

申请日：2006-02-23

申请人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： G05F3/16 ,  G05F1/10 ,  H03H3/08

CPC分类号： G05F3/30 ,  H03F1/301 ,  H03F3/505 ,  H03F2200/153 ,  H03F2200/447 ,  H03F2200/78 ,  H03F2203/5018

摘要： A reference voltage generating circuit with ultra-low power consumption, which includes: a constant current circuit part generating a first constant current from a supply voltage; a current mirror circuit part mirroring the constant current and supplying a second constant current; a voltage control circuit part receiving the second constant current and generating a first reference voltage by using substrate transistors driven by a PTAT (Proportional To Absolute Temperature) voltage and MOS transistors driven by a CTAT (Complementary To Absolute Temperature) voltage; and an output circuit part amplifying an output voltage from the voltage control circuit part to generate second to fourth reference voltages, and feeding back at least one of the second to fourth reference voltages to the voltage control circuit part so that the magnitude of an output voltage is adjusted. The reference voltage generating circuit is able to stably output four reference voltages, independently of changes in supply voltage, process, temperature, and other factors.

摘要翻译： 一种具有超低功耗的参考电压产生电路，包括：恒定电流电路部分，从电源电压产生第一恒定电流; 反射恒定电流并提供第二恒定电流的电流镜电路部分; 电压控制电路部分，通过使用由PTAT（比例绝对温度）电压驱动的基板晶体和由CTAT（互补绝对温度）电压驱动的MOS晶体管，接收第二恒定电流并产生第一参考电压; 以及输出电路部分，放大来自电压控制电路部分的输出电压以产生第二至第四参考电压，并将第二至第四参考电压中的至少一个反馈到电压控制电路部分，使得输出电压的幅度 被调整。 参考电压发生电路能够稳定地输出四个参考电压，独立于电源电压，工艺，温度等因素的变化。

公开(公告)号：US20060192609A1

公开(公告)日：2006-08-31

申请号：US11359505

申请日：2006-02-23

申请人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

发明人： Ja-nam Ku ,  Chung-woul Kim ,  Young-hoon Min ,  Il-jong Song ,  Dong-hyun Lee

IPC分类号： G05F1/10

CPC分类号： G05F3/30 ,  H03F1/301 ,  H03F3/505 ,  H03F2200/153 ,  H03F2200/447 ,  H03F2200/78 ,  H03F2203/5018

摘要： A reference voltage generating circuit with ultra-low power consumption, which includes: a constant current circuit part generating a first constant current from a supply voltage; a current mirror circuit part mirroring the constant current and supplying a second constant current; a voltage control circuit part receiving the second constant current and generating a first reference voltage by using substrate transistors driven by a PTAT (Proportional To Absolute Temperature) voltage and MOS transistors driven by a CTAT (Complementary To Absolute Temperature) voltage; and an output circuit part amplifying an output voltage from the voltage control circuit part to generate second to fourth reference voltages, and feeding back at least one of the second to fourth reference voltages to the voltage control circuit part so that the magnitude of an output voltage is adjusted. The reference voltage generating circuit is able to stably output four reference voltages, independently of changes in supply voltage, process, temperature, and other factors.

摘要翻译： 一种具有超低功耗的参考电压产生电路，包括：恒定电流电路部分，从电源电压产生第一恒定电流; 反射恒定电流并提供第二恒定电流的电流镜电路部分; 电压控制电路部分，通过使用由PTAT（比例绝对温度）电压驱动的基板晶体和由CTAT（互补绝对温度）电压驱动的MOS晶体管，接收第二恒定电流并产生第一参考电压; 以及输出电路部分，放大来自电压控制电路部分的输出电压以产生第二至第四参考电压，并将第二至第四参考电压中的至少一个反馈到电压控制电路部分，使得输出电压的幅度 被调整。 参考电压发生电路能够稳定地输出四个参考电压，独立于电源电压，工艺，温度等因素的变化。