公开(公告)号：US20140014839A1

公开(公告)日：2014-01-16

申请号：US13546139

申请日：2012-07-11

Applicant: Tom CHANG ,  Kao Pin WU ,  Chih Jen FANG

Inventor： Tom CHANG ,  Kao Pin WU ,  Chih Jen FANG

IPC: H01L31/12

CPC classification number: G06F1/1684 ,  G06F3/017 ,  G06F3/0304

Abstract: A sensor based on light sensing is provided, including a visible light sensor, an IR sensor, an amplifier connected to visible light sensor and IR sensor, an auto-gain control (AGC) connected to amplifier, an A/D converter (ADC) connected to AGC, a digital filter connected to ADC, a multiplexer connected to both digital filter and ADC, a timing controller connected to amplifier, AGC, DC, and digital filter, a temperature sensor, a voltage reference connected to amplifier, an oscillator connected to ADC, an IR_LED driver for driving IR LEDs, a control register connected to timing controller, a data register connected to multiplexer, an I2C interface connected to external serial clock line (SCL) and serial data lines (SDA), and an interrupt interface connected to external interrupt bus (INTB). SCL, SDA and INTB are connected externally to a host able to read and display the result data from the sensor.

Abstract translation: 提供基于光感测的传感器，包括可见光传感器，IR传感器，连接到可见光传感器和IR传感器的放大器，连接到放大器的自动增益控制（AGC），A / D转换器（ADC） 连接到AGC，连接到ADC的数字滤波器，连接到数字滤波器和ADC的多路复用器，连接到放大器，AGC，DC和数字滤波器的定时控制器，温度传感器，连接到放大器的电压基准，连接到振荡器 到ADC，用于驱动IR LED的IR_LED驱动器，连接到定时控制器的控制寄存器，连接到多路复用器的数据寄存器，连接到外部串行时钟线（SCL）和串行数据线（SDA）的I2C接口以及中断接口 连接到外部中断总线（INTB）。 SCL，SDA和INTB外部连接到能够从传感器读取和显示结果数据的主机。

公开(公告)号：US20120312956A1

公开(公告)日：2012-12-13

申请号：US13494000

申请日：2012-06-11

Applicant: Tom Chang ,  Kao Pin Wu ,  Chih Jen Fang ,  Cheng Te Chan ,  Cheng Ta Chuang ,  Fang Yu Liu

Inventor： Tom Chang ,  Kao Pin Wu ,  Chih Jen Fang ,  Cheng Te Chan ,  Cheng Ta Chuang ,  Fang Yu Liu

IPC: H01L31/00

CPC classification number: G06F3/017 ,  G06F3/0421 ,  G06K9/00335 ,  G06K9/209

Abstract: A light sensor system includes at least one light emitter, a light sensor unit and a processing unit. The light sensor unit is arranged to receive reflected light from an object in accordance with a time sequence in which the at least one light emitter is activated, and accordingly output a plurality of reflected signals. The processing unit is arranged to receive the reflected signals, identify a signal function of time by referring to occurrence sequence of local peak levels of the reflected signals, and determine motion of the object according to the signal function of time. Another light sensor system is proposed. The major difference between the two light sensor systems is that the processing unit of the another light sensor system is arranged to identify the signal function of time by comparing a predetermined threshold with signal levels of the reflected signals.

Abstract translation: 光传感器系统包括至少一个光发射器，光传感器单元和处理单元。 光传感器单元被布置成根据至少一个光发射器被激活的时间顺序接收来自物体的反射光，并因此输出多个反射信号。 处理单元被布置为接收反射信号，通过参考反射信号的局部峰值电平的出现顺序来识别时间的信号功能，并且根据时间的信号函数来确定对象的运动。 提出了另一种光传感器系统。 两个光传感器系统的主要区别在于，另一光传感器系统的处理单元被布置成通过将预定阈值与反射信号的信号电平进行比较来识别时间的信号功能。