公开(公告)号：US09193340B2

公开(公告)日：2015-11-24

申请号：US14259036

申请日：2014-04-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yi-Gyeong Kim ,  Min-Hyung Cho ,  Young-deuk Jeon ,  Tae Moon Roh ,  Jong-Kee Kwon

IPC: B60T7/12 ,  B60T8/32 ,  G01P3/56 ,  G01P3/44 ,  B60T8/171 ,  B60T8/88

CPC classification number: B60T8/32 ,  B60T8/171 ,  B60T8/885 ,  G01P3/44 ,  G01P3/489 ,  G01P3/56

Abstract: Provided is a wheel speed sensor interface. The wheel speed sensor interface includes: a speed pulse detection circuit configured to receive a plurality of sensor signals including wheel speed information of a vehicle, detect a plurality of speed pulses on the basis of the plurality of the received sensor signals, and transmit the plurality of the detected speed pulses to an external device; and a comparison speed detection circuit configured to generate a plurality of counting values by counting each of the detected speed pulses, generate comparison speed information by multiplexing the plurality of the generated counting values through a time division method, and transmit the generated comparison speed information to the external device.

Abstract translation: 提供了一种车轮速度传感器接口。 轮速传感器接口包括：速度脉冲检测电路，被配置为接收包括车辆的车轮速度信息的多个传感器信号，基于多个接收到的传感器信号检测多个速度脉冲，并且发送多个 检测到的速度脉冲到外部设备; 以及比较速度检测电路，被配置为通过对每个所检测的速度脉冲进行计数来生成多个计数值，并通过时分方法多个生成的多个计数值来生成比较速度信息，并将生成的比较速度信息发送到 外部设备。

公开(公告)号：US08983090B2

公开(公告)日：2015-03-17

申请号：US13762300

申请日：2013-02-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yi-Gyeong Kim ,  Min-Hyung Cho ,  Tae Moon Roh ,  Jong-Kee Kwon ,  Woo Seok Yang ,  Jongdae Kim

IPC: H04R15/00 ,  H04R3/00 ,  H04R19/00

CPC classification number: H04R3/00 ,  H04R19/005 ,  H04R2201/003 ,  H04R2410/03

Abstract: An MEMS microphone is provided which includes a reference voltage/current generator configured to generate a DC reference voltage and a reference current; a first noise filter configured to remove a noise of the DC reference voltage; a voltage booster configured to generate a sensor bias voltage using the DC reference voltage the noise of which is removed; a microphone sensor configured to receive the sensor bias voltage and to generate an output value based on a variation in a sound pressure; a bias circuit configured to receive the reference current to generate a bias voltage; and a signal amplification unit configured to receive the bias voltage and the output value of the microphone sensor to amplify the output value. The first noise filter comprises an impedance circuit; a capacitor circuit connected to a output node of the impedance circuit; and a switch connected to both ends of the impedance circuit.

Abstract translation: 提供了一种MEMS麦克风，其包括被配置为产生DC参考电压和参考电流的参考电压/电流发生器; 第一噪声滤波器，被配置为去除所述DC参考电压的噪声; 升压器，被配置为使用其噪声被去除的直流参考电压来产生传感器偏置电压; 麦克风传感器，被配置为接收所述传感器偏置电压并且基于声压的变化产生输出值; 偏置电路，被配置为接收所述参考电流以产生偏置电压; 以及信号放大单元，被配置为接收麦克风传感器的偏置电压和输出值以放大输出值。 第一噪声滤波器包括阻抗电路; 连接到所述阻抗电路的输出节点的电容器电路; 以及连接到阻抗电路的两端的开关。