公开(公告)号：US08487258B2

公开(公告)日：2013-07-16

申请号：US13580463

申请日：2011-06-23

申请人： Takahiro Sono ,  Teruki Hatatani ,  Suguru Fukui ,  Takayuki Nishikawa

发明人： Takahiro Sono ,  Teruki Hatatani ,  Suguru Fukui ,  Takayuki Nishikawa

IPC分类号： G01J5/00

CPC分类号： H01L37/02 ,  G01J5/16 ,  G01J5/34

摘要： The pyroelectric infrared detection element has a pyroelectric element including opposite first and second electrodes and an infrared absorption part. The first and second electrodes are formed on first and second thickness-direction surfaces of a pyroelectric substrate respectively. The detection element includes an output terminal unit including first and second output terminals on the substrate, and first and second wiring parts connecting the first and second output terminals to the first and second electrodes respectively. The first wiring part includes a connecting line being a conductive layer on the first surface to connect the first output terminal to the first electrode, and a canceling line for canceling charges generated at the connecting line in response to a change in temperature of the substrate. The canceling line is a conductive layer on the second surface to be insulated from the second electrode and to be connected to the connecting line.

摘要翻译： 热电型红外线检测元件具有包括相对的第一和第二电极和红外线吸收部的热电元件。 第一和第二电极分别形成在热释电基板的第一和第二厚度方向表面上。 检测元件包括：输出端子单元，其包括在基板上的第一和第二输出端子;以及第一和第二布线部分，分别将第一和第二输出端子连接到第一和第二电极。 第一布线部分包括连接线，该连接线是第一表面上的导电层，用于将第一输出端连接到第一电极;以及消除线，用于响应于基板的温度变化而消除在连接线处产生的电荷。 消除线是在第二表面上与第二电极绝缘并连接到连接线的导电层。

公开(公告)号：US20120318980A1

公开(公告)日：2012-12-20

申请号：US13580463

申请日：2011-06-23

申请人： Takahiro Sono ,  Teruki Hatatani ,  Suguru Fukui ,  Takayuki Nishikawa

发明人： Takahiro Sono ,  Teruki Hatatani ,  Suguru Fukui ,  Takayuki Nishikawa

IPC分类号： G01J5/10

CPC分类号： H01L37/02 ,  G01J5/16 ,  G01J5/34

摘要： The pyroelectric infrared detection element has a pyroelectric element including opposite first and second electrodes and an infrared absorption part. The first and second electrodes are formed on first and second thickness-direction surfaces of a pyroelectric substrate respectively. The detection element includes an output terminal unit including first and second output terminals on the substrate, and first and second wiring parts connecting the first and second output terminals to the first and second electrodes respectively. The first wiring part includes a connecting line being a conductive layer on the first surface to connect the first output terminal to the first electrode, and a canceling line for canceling charges generated at the connecting line in response to a change in temperature of the substrate. The canceling line is a conductive layer on the second surface to be insulated from the second electrode and to be connected to the connecting line.

摘要翻译： 热电型红外线检测元件具有包括相对的第一和第二电极和红外线吸收部的热电元件。 第一和第二电极分别形成在热释电基板的第一和第二厚度方向表面上。 检测元件包括：输出端子单元，其包括在基板上的第一和第二输出端子;以及第一和第二布线部分，分别将第一和第二输出端子连接到第一和第二电极。 第一布线部分包括连接线，该连接线是第一表面上的导电层，用于将第一输出端连接到第一电极;以及消除线，用于响应于基板的温度变化而消除在连接线处产生的电荷。 消除线是在第二表面上与第二电极绝缘并连接到连接线的导电层。

公开(公告)号：US20050285040A1

公开(公告)日：2005-12-29

申请号：US10536980

申请日：2004-11-11

申请人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada ,  Atsushi Hironaka

发明人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada ,  Atsushi Hironaka

IPC分类号： G01V8/12 ,  G01J1/02 ,  G01J1/42 ,  G01J5/34 ,  G01J5/00

CPC分类号： G01J5/34

摘要： An infrared detecting device. The device includes a drive power supply circuit which supplies a drive current to each of signal circuits comprised of an I/V conversion circuit, a voltage amplification circuit, a detection circuit and an output circuit. The drive power supply circuit is comprised of a current generating circuit and a distribution circuit. The current generating circuit includes a reference current source, a fixed current source which provides a fixed current based on reference current and a variable current source which provides a variable current stepped up or down to any of different currents based on the reference current. The distribution circuit distributes the drive current to a part of the signal circuits based on the current from the fixed current source and distributes the drive current to a remaining part of the signal circuits based on the current from the variable current source. The device reduces current consumption while keeping the performance or behavior of the circuits in stable state.

摘要翻译： 一种红外线检测装置。 该装置包括驱动电源电路，其向由I / V转换电路，电压放大电路，检测电路和输出电路组成的每个信号电路提供驱动电流。 驱动电源电路由电流发生电路和分配电路构成。 电流产生电路包括参考电流源，基于参考电流提供固定电流的固定电流源和基于参考电流提供向上或向下升至任何不同电流的可变电流的可变电流源。 分配电路基于来自固定电流源的电流将驱动电流分配到信号电路的一部分，并且基于来自可变电流源的电流将驱动电流分配到信号电路的剩余部分。 该器件降低电流消耗，同时保持电路的性能或行为处于稳定状态。

公开(公告)号：US07312450B2

公开(公告)日：2007-12-25

申请号：US10536980

申请日：2004-11-11

申请人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada ,  Atsushi Hironaka

发明人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada ,  Atsushi Hironaka

IPC分类号： G01J5/00

CPC分类号： G01J5/34

摘要： An infrared detecting device for reducing current consumption while maintaining performance is disclosed. The device includes a drive power supply circuit which comprises a current generating circuit and a distribution circuit, and which supplies a drive current to each of signal circuits comprising an I/V conversion circuit, a voltage amplification circuit, a detection circuit and an output circuit. The current generating circuit includes a reference current source, a fixed current source providing a fixed current based on the reference current and a variable current source providing a variable current stepped up or down to any different currents based on the reference current. The distribution circuit distributes the drive current to a part of the signal circuits based on the current from the fixed current source and distributes the drive current to a remaining part of the signal circuits based on the current from the variable current source.

摘要翻译： 公开了一种用于在保持性能的同时降低电流消耗的红外线检测装置。 该装置包括驱动电源电路，其包括电流产生电路和分配电路，并且向包括I / V转换电路，电压放大电路，检测电路和输出电路的每个信号电路提供驱动电流 。 电流产生电路包括参考电流源，基于参考电流提供固定电流的固定电流源和基于参考电流提供向上或向下升至任何不同电流的可变电流的可变电流源。 分配电路基于来自固定电流源的电流将驱动电流分配到信号电路的一部分，并且基于来自可变电流源的电流将驱动电流分配到信号电路的剩余部分。

公开(公告)号：US09212951B2

公开(公告)日：2015-12-15

申请号：US13701867

申请日：2011-06-30

申请人： Suguru Fukui ,  Teruki Hatatani

发明人： Suguru Fukui ,  Teruki Hatatani

IPC分类号： G01J5/34 ,  G01J1/44 ,  G01J1/46 ,  H01C7/02 ,  G08B13/191

CPC分类号： G01J5/34 ,  G01J1/44 ,  G01J1/46 ,  G08B13/191 ,  H01C7/02 ,  H01L2224/48091 ,  H01L2924/00014

摘要： The object detection device includes: a pyroelectric element configured to output a current signal in response to a change in an amount of infrared light; an I/V conversion circuit including an operational amplifier, a capacitive element serving as a feedback circuit, and a discharging circuit, and configured to convert the current signal to a voltage signal; an A/D conversion circuit configured to convert the voltage signal to a first digital signal; a digital filter configured to extract a detection component having a frequency included in a frequency band associated with an object from a waveform represented by the first digital signal by subjecting the first digital signal to an arithmetic processing, and create a second digital signal representing a waveform of the detection component; a judgment circuit configured to detect the target based on the second digital signal; and a control unit configured to control the discharging circuit based on a period corresponding to a predetermined frequency not greater than a lower limit of the frequency band to discharge electric charges stored in the capacitive element.

摘要翻译： 物体检测装置包括：热电元件，被配置为响应于红外光量的变化而输出电流信号; 包括运算放大器，用作反馈电路的电容元件和放电电路的I / V转换电路，并且被配置为将电流信号转换为电压信号; A / D转换电路，被配置为将电压信号转换为第一数字信号; 数字滤波器，被配置为通过对所述第一数字信号进行运算处理，从由所述第一数字信号表示的波形中提取具有与对象相关联的频带中包括的频率的检测分量，并创建表示波形的第二数字信号 的检测部件; 判定电路，被配置为基于所述第二数字信号来检测所述目标; 以及控制单元，被配置为基于对应于不大于所述频带的下限的预定频率的周期来控制所述放电电路，以放电存储在所述电容元件中的电荷。

公开(公告)号：US08552355B2

公开(公告)日：2013-10-08

申请号：US12736598

申请日：2009-04-21

申请人： Suguru Fukui ,  Teruki Hatatani

发明人： Suguru Fukui ,  Teruki Hatatani

IPC分类号： G01J1/44 ,  H03F3/08 ,  G01N15/06

CPC分类号： G08B29/24 ,  G01N21/4738 ,  G01N21/53 ,  G08B17/103 ,  G08B17/107 ,  G08B17/113 ,  H03F3/087

摘要： A current-voltage converting circuit (2) is provided with a first feedback circuit (5) and a correcting transistor (Q1). The first feedback circuit (5) outputs, of an output voltage (V10), a voltage according to a magnitude of a low-frequency component that is not greater than or equal to a predefined first cut-off frequency. The correcting transistor (Q1) extracts a correction current (I21) according to a magnitude of an output of the first feedback circuit (5) from a sensor current (I10). The first feedback circuit (5) has a first integrating circuit (9) and a sample-and-hold circuit (10). The first integrating circuit (9) integrates the output voltage (V10) of a conversion section (3). The sample-and-hold circuit (10) samples and holds an output of the first integrating circuit (9) during a sensing period at which a pulsed detection signal is inputted. Means for preventing an incidence of ambient light onto a light-receiving section can be simplified or omitted as a result.

摘要翻译： 电流 - 电压转换电路（2）具有第一反馈电路（5）和校正晶体管（Q1）。 第一反馈电路（5）根据输出电压（V10）的不同于预定的第一截止频率的低频分量的大小输出电压。 校正晶体管（Q1）根据传感器电流（I10）根据第一反馈电路（5）的输出的大小提取校正电流（I21）。 第一反馈电路（5）具有第一积分电路（9）和采样保持电路（10）。 第一积分电路（9）对转换部分（3）的输出电压（V10）进行积分。 采样和保持电路（10）在输入脉冲检测信号的感测时段期间采样并保持第一积分电路（9）的输出。 结果，可以简化或省略将环境光入射到光接收部分上的装置。

公开(公告)号：US20130082179A1

公开(公告)日：2013-04-04

申请号：US13701867

申请日：2011-06-30

申请人： Suguru Fukui ,  Teruki Hatatani

发明人： Suguru Fukui ,  Teruki Hatatani

IPC分类号： G01J5/34

CPC分类号： G01J5/34 ,  G01J1/44 ,  G01J1/46 ,  G08B13/191 ,  H01C7/02 ,  H01L2224/48091 ,  H01L2924/00014

摘要： The object detection device includes: a pyroelectric element configured to output a current signal in response to a change in an amount of infrared light; an I/V conversion circuit including an operational amplifier, a capacitive element serving as a feedback circuit, and a discharging circuit, and configured to convert the current signal to a voltage signal; an A/D conversion circuit configured to convert the voltage signal to a first digital signal; a digital filter configured to extract a detection component having a frequency included in a frequency band associated with an object from a waveform represented by the first digital signal by subjecting the first digital signal to an arithmetic processing, and create a second digital signal representing a waveform of the detection component; a judgment circuit configured to detect the target based on the second digital signal; and a control unit configured to control the discharging circuit based on a period corresponding to a predetermined frequency not greater than a lower limit of the frequency band to discharge electric charges stored in the capacitive element.

摘要翻译： 物体检测装置包括：热电元件，被配置为响应于红外光量的变化而输出电流信号; 包括运算放大器，用作反馈电路的电容元件和放电电路的I / V转换电路，并且被配置为将电流信号转换为电压信号; A / D转换电路，被配置为将电压信号转换为第一数字信号; 数字滤波器，被配置为通过对所述第一数字信号进行运算处理，从由所述第一数字信号表示的波形中提取具有与对象相关联的频带中包括的频率的检测分量，并创建表示波形的第二数字信号 的检测部件; 判定电路，被配置为基于所述第二数字信号来检测所述目标; 以及控制单元，被配置为基于对应于不大于所述频带的下限的预定频率的周期来控制所述放电电路，以放电存储在所述电容元件中的电荷。

公开(公告)号：US07792553B2

公开(公告)日：2010-09-07

申请号：US10586357

申请日：2005-11-18

申请人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada

发明人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada

IPC分类号： H04B1/38

CPC分类号： H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/823 ,  H04Q2209/883 ,  H04Q2209/886 ,  H05B37/0227

摘要： A wireless sensor device including a sensor configured to sense a target object and provide a sensor signal of varying levels indicative of condition of the target object, a signal processing circuit configured to amplify the sensor signal and provide an amplified electric analog signal, and a detection circuit configured to receive the amplified analog signal and provide a detection output when the electric analog signal goes beyond a predetermined detection threshold. A radio transmitter transmits a radio detection signal in response to the detection output. A power supply is configured to provide an electric power to the signal processing circuit and the radio transmitter and includes a power generating element which converts an external energy into the electric power to be accumulated in the power supply. A controller activates the radio transmitter only in response to the detection output, permitting the radio transmitter to generate the radio detection signal.

摘要翻译： 一种无线传感器装置，包括：传感器，被配置为感测目标对象，并提供指示目标对象的状态的变化等级的传感器信号;信号处理电路，被配置为放大所述传感器信号并提供放大的电模拟信号;以及检测 电路，被配置为当电模拟信号超过预定检测阈值时接收放大的模拟信号并提供检测输出。 无线电发射机响应于检测输出发送无线电检测信号。 电源被配置为向信号处理电路和无线电发射机提供电力，并且包括将外部能量转换成要积聚在电源中的电力的发电元件。 控制器仅响应于检测输出激活无线电发射机，允许无线电发射机产生无线电检测信号。

公开(公告)号：US20070159235A1

公开(公告)日：2007-07-12

申请号：US10586357

申请日：2005-11-18

申请人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada

发明人： Suguru Fukui ,  Teruki Hatatani ,  Yuji Takada

IPC分类号： G05F1/10

CPC分类号： H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/823 ,  H04Q2209/883 ,  H04Q2209/886 ,  H05B37/0227

摘要： A wireless sensor device of low energy consumption operates over a prolonged period of time for providing a reliable sensor result. The wireless sensor device includes a sensor configured to sense a target object and provide a sensor signal of varying levels indicative of condition of the target object, a signal processing circuit configured to amplify the sensor signal and give an amplified electric analog signal, and a detection circuit configured to receive the amplified analog signal and provide a detection output when the electric analog signal goes beyond a predetermined detection threshold. Also included in the device is a radio transmitter which transmits a radio detection signal in response to the detection output. Further, the device includes a power supply configured to provide an electric power to the signal processing circuit and the radio transmitter; and a power generating element which converts an external energy into the electric power to be accumulated in the power supply. The controller is included to activate the radio transmitter only in response to the detection output, permitting the radio transmitter to generate the radio detection signal. Thus, the radio transmitter can be kept inactivated until receiving the detection output, thereby saving energy to prolong the operating life of the device.

摘要翻译： 低能耗的无线传感器设备在长时间内运行，以提供可靠的传感器结果。 所述无线传感器装置包括传感器，所述传感器被配置为感测目标对象并提供指示所述目标对象的状态的变化等级的传感器信号;信号处理电路，被配置为放大所述传感器信号并给出放大的电模拟信号;以及检测 电路，被配置为当电模拟信号超过预定检测阈值时接收放大的模拟信号并提供检测输出。 设备中还包括响应于检测输出发送无线电检测信号的无线电发射机。 此外，该装置包括被配置为向信号处理电路和无线电发射机提供电力的电源; 以及将外部能量转换成要积聚在电源中的电力的发电元件。 仅仅响应于检测输出而包括控制器以激活无线电发射机，允许无线电发射机产生无线电检测信号。 因此，无线电发射机可以保持失活直到接收到检测输出，从而节省能量以延长设备的使用寿命。

公开(公告)号：US20110031419A1

公开(公告)日：2011-02-10

申请号：US12736598

申请日：2009-04-21

申请人： Suguru Fukui ,  Teruki Hatatani

发明人： Suguru Fukui ,  Teruki Hatatani

IPC分类号： G01N21/85

CPC分类号： G08B29/24 ,  G01N21/4738 ,  G01N21/53 ,  G08B17/103 ,  G08B17/107 ,  G08B17/113 ,  H03F3/087

摘要： A current-voltage converting circuit (2) is provided with a first feedback circuit (5) and a correcting transistor (Q1). The first feedback circuit (5) outputs, of an output voltage (V10), a voltage according to a magnitude of a low-frequency component that is not greater than or equal to a predefined first cut-off frequency. The correcting transistor (Q1) extracts a correction current (I21) according to a magnitude of an output of the first feedback circuit (5) from a sensor current (I10). The first feedback circuit (5) has a first integrating circuit (9) and a sample-and-hold circuit (10). The first integrating circuit (9) integrates the output voltage (V10) of a conversion section (3). The sample-and-hold circuit (10) samples and holds an output of the first integrating circuit (9) during a sensing period at which a pulsed detection signal is inputted. Means for preventing an incidence of ambient light onto a light-receiving section can be simplified or omitted as a result.

摘要翻译： 电流 - 电压转换电路（2）具有第一反馈电路（5）和校正晶体管（Q1）。 第一反馈电路（5）输出输出电压（V10）中根据不大于或等于预定义的第一截止频率的低频分量的幅度的电压。 校正晶体管（Q1）根据传感器电流（I10）根据第一反馈电路（5）的输出的大小提取校正电流（I21）。 第一反馈电路（5）具有第一积分电路（9）和采样保持电路（10）。 第一积分电路（9）对转换部分（3）的输出电压（V10）进行积分。 采样和保持电路（10）在输入脉冲检测信号的感测时段期间采样并保持第一积分电路（9）的输出。 结果，可以简化或省略将环境光入射到光接收部分上的装置。