公开(公告)号：US07812877B2

公开(公告)日：2010-10-12

申请号：US10554697

申请日：2004-04-28

申请人： Takashi Suzuki ,  Itsushi Tadamasa

发明人： Takashi Suzuki ,  Itsushi Tadamasa

IPC分类号： H04N3/14 ,  H04N5/335

CPC分类号： G01J1/46 ,  H03M1/60

摘要： An I/F converter 10 includes a first comparator portion 111, a second comparator portion 112, a current mirror circuit 14, a reference voltage source 15, an SR-type flip-flop circuit 16, a buffer amplifier 18, a first capacitive element C1, a second capacitive element C2, a switch SW1, a switch SW2, a switch SW11, and a switch SW21. The respective operational characteristics of the first comparator portion 111 and the second comparator portion 112 are identical to each other. The respective capacitance values of the two capacitive elements C1 and C2 are equal to each other. The I/F converter 10 is connected at its input end 10a to a photodiode PD, such that a current generated in the photodiode PD is inputted to the input end 10a, allowing a signal at a frequency corresponding to the amplitude of the inputted current to be outputted from the buffer amplifier 18 to the counter portion 19. Accordingly, provided is an I/F converter and a photodetector which can realize a high input/output related linearity with high accuracy over a wide dynamic range.

摘要翻译： I / F转换器10包括第一比较器部分111，第二比较器部分112，电流镜电路14，参考电压源15，SR型触发器电路16，缓冲放大器18，第一电容元件 C1，第二电容元件C2，开关SW1，开关SW2，开关SW11和开关SW21。 第一比较器部分111和第二比较器部分112的各自的操作特性彼此相同。 两个电容元件C1和C2的相应电容值彼此相等。 I / F转换器10在其输入端10a处连接到光电二极管PD，使得在光电二极管PD中产生的电流被输入到输入端10a，允许以与输入电流的幅度对应的频率的信号 从缓冲放大器18输出到计数器部19.因此，提供了能够在宽动态范围内以高精度实现高输入输出相关线性度的I / F转换器和光电检测器。

公开(公告)号：US07532044B2

公开(公告)日：2009-05-12

申请号：US11632117

申请日：2005-07-11

申请人： Takashi Suzuki ,  Itsushi Tadamasa

发明人： Takashi Suzuki ,  Itsushi Tadamasa

IPC分类号： H03C3/00 ,  H03K17/78

CPC分类号： G01J1/46 ,  G01J1/0488 ,  G01J1/1626

摘要： An I/F converter 10 contained in a photodetector is provided with a first comparing portion 111, a second comparing portion 112, a current mirror circuit 14, an SR type flip-flop circuit 16, a buffer amplifier 18, a first capacitor C1, a second capacitor C2, a switch SW1, a switch SW2, a switch SW11 and a switch SW21. The operation characteristics of the first comparing portion 111 and the second comparing portion 112 are identical to each other. The capacitance values of the two capacitors C1 and C2 are equal to each other. The input terminal 10a of the I/F converter 10 is connected to a photodiode, and the I/F converter 10 inputs current generated by the photodiode through the input terminal 10a thereof and outputs a signal having the frequency corresponding to the magnitude of the input current from a buffer amplifier 18.

摘要翻译： 包含在光电检测器中的I / F转换器10设置有第一比较部分111，第二比较部分112，电流镜电路14，SR型触发器电路16，缓冲放大器18，第一电容器C1， 第二电容器C2，开关SW1，开关SW2，开关SW11和开关SW21。 第一比较部分111和第二比较部分112的操作特性彼此相同。 两个电容器C1和C2的电容值彼此相等。 I / F转换器10的输入端子10a连接到光电二极管，I / F转换器10通过其输入端子10a输入由光电二极管产生的电流，并输出具有与输入的幅度对应的频率的信号 来自缓冲放大器18的电流。

公开(公告)号：US08346494B2

公开(公告)日：2013-01-01

申请号：US12622783

申请日：2009-11-20

申请人： Masahisa Niwa ,  Kunitaka Okada ,  Itsushi Tadamasa

发明人： Masahisa Niwa ,  Kunitaka Okada ,  Itsushi Tadamasa

IPC分类号： G01R15/00

CPC分类号： G01D3/022

摘要： The physical quantity measurement device involves a terminal unit, a sensor, a storage unit, an output unit, a communication unit, a control unit, and a discriminating unit. The terminal unit has a power terminal, an output terminal, and a ground terminal. The communication unit uses the power terminal in order to receive a serial signal from an external device. The control unit has an adjusting mode and a normal mode. The discriminating unit decides that the external device requests either the adjusting mode or the normal mode based on whether or not an electrical potential of each of the power terminal and the output terminal satisfies a predetermined condition. The control unit selects the normal mode when the discriminating unit decides that the external device requests the normal mode, and selects the adjusting mode when the discriminating unit decides that the external device request the adjusting mode.

摘要翻译： 物理量测量装置包括终端单元，传感器，存储单元，输出单元，通信单元，控制单元和鉴别单元。 终端单元具有电源端子，输出端子和接地端子。 通信单元使用电源端子以从外部设备接收串行信号。 控制单元具有调整模式和正常模式。 鉴别单元基于每个电源端子和输出端子的电位是否满足预定条件，决定外部设备请求调整模式或正常模式。 当鉴别单元判定外部设备请求正常模式时，控制单元选择正常模式，并且当鉴别单元判定外部设备请求调整模式时，选择调整模式。

公开(公告)号：US20100131222A1

公开(公告)日：2010-05-27

申请号：US12622783

申请日：2009-11-20

申请人： Masahisa Niwa ,  Kunitaka Okada ,  Itsushi Tadamasa

发明人： Masahisa Niwa ,  Kunitaka Okada ,  Itsushi Tadamasa

IPC分类号： G06F19/00

CPC分类号： G01D3/022

摘要： The physical quantity measurement device involves a terminal unit, a sensor, a storage unit, an output unit, a communication unit, a control unit, and a discriminating unit. The terminal unit has a power terminal, an output terminal, and a ground terminal. The communication unit uses the power terminal in order to receive a serial signal from an external device. The control unit has an adjusting mode and a normal mode. The discriminating unit decides that the external device requests either the adjusting mode or the normal mode based on whether or not an electrical potential of each of the power terminal and the output terminal satisfies a predetermined condition. The control unit selects the normal mode when the discriminating unit decides that the external device requests the normal mode, and selects the adjusting mode when the discriminating unit decides that the external device request the adjusting mode.

摘要翻译： 物理量测量装置包括终端单元，传感器，存储单元，输出单元，通信单元，控制单元和鉴别单元。 终端单元具有电源端子，输出端子和接地端子。 通信单元使用电源端子以从外部设备接收串行信号。 控制单元具有调整模式和正常模式。 鉴别单元基于每个电源端子和输出端子的电位是否满足预定条件，决定外部设备请求调整模式或正常模式。 当鉴别单元判定外部设备请求正常模式时，控制单元选择正常模式，并且当鉴别单元判定外部设备请求调整模式时，选择调整模式。

公开(公告)号：US20080204085A1

公开(公告)日：2008-08-28

申请号：US11632117

申请日：2005-07-11

申请人： Takashi Suzuki ,  Itsushi Tadamasa

发明人： Takashi Suzuki ,  Itsushi Tadamasa

IPC分类号： H03C3/00

CPC分类号： G01J1/46 ,  G01J1/0488 ,  G01J1/1626

摘要： An I/F converter 10 contained in a photodetector is provided with a first comparing portion 111, a second comparing portion 112, a current mirror circuit 14, an SR type flip-flop circuit 16, a buffer amplifier 18, a first capacitor C1, a second capacitor C2, a switch SW1, a switch SW2, a switch SW11 and a switch SW21. The operation characteristics of the first comparing portion 111 and the second comparing portion 112 are identical to each other. The capacitance values of the two capacitors C1 and C2 are equal to each other. The input terminal 10a of the I/F converter 10 is connected to a photodiode, and the I/F converter 10 inputs current generated by the photodiode through the input terminal 10a thereof and outputs a signal having the frequency corresponding to the magnitude of the input current from a buffer amplifier 18.

摘要翻译： 包含在光电检测器中的I / F转换器10设置有第一比较部分11 1，第二比较部分11 2，电流镜电路14，SR型 触发器电路16，缓冲放大器18，第一电容器C 1，第二电容器C 2，开关SW 1， 开关SW <2>，开关SW 11和开关SW 21。 第一比较部分11 1和第二比较部分11 2 2的操作特性彼此相同。 两个电容器C 1和C 2的电容值彼此相等。 I / F转换器10的输入端子10a连接到光电二极管，并且I / F转换器10通过其输入端子10a输入由光电二极管产生的电流，并输出具有对应于 来自缓冲放大器18的输入电流。

公开(公告)号：US20060273830A1

公开(公告)日：2006-12-07

申请号：US10554697

申请日：2004-04-28

申请人： Takashi Suzuki ,  Itsushi Tadamasa

发明人： Takashi Suzuki ,  Itsushi Tadamasa

IPC分类号： H03C3/00

CPC分类号： G01J1/46 ,  H03M1/60

摘要： An I/F converter 10 includes a first comparator portion 111, a second comparator portion 112, a current mirror circuit 14, a reference voltage source 15, an SR-type flip-flop circuit 16, a buffer amplifier 18, a first capacitive element C1, a second capacitive element C2, a switch SW1, a switch SW2, a switch SW11, and a switch SW21. The respective operational characteristics of the first comparator portion 111 and the second comparator portion 112 are identical to each other. The respective capacitance values of the two capacitive elements C1 and C2 are equal to each other. The I/F converter 10 is connected at its input end 10a to a photodiode PD, such that a current generated in the photodiode PD is inputted to the input end 10a, allowing a signal at a frequency corresponding to the amplitude of the inputted current to be outputted from the buffer amplifier 18 to the counter portion 19. Accordingly, provided is an I/F converter and a photodetector which can realize a high input/output related linearity with high accuracy over a wide dynamic range.

摘要翻译： I / F转换器10包括第一比较器部分11 1，第二比较器部分11 2，电流镜像电路14，参考电压源15，SR- 类型触发器电路16，缓冲放大器18，第一电容元件C 1，第二电容元件C 2，开关SW 1