公开(公告)号：US20180136740A1

公开(公告)日：2018-05-17

申请号：US15856042

申请日：2017-12-27

Applicant: PixArt Imaging Incorporation

Inventor： Chuan-Hsin Lee

IPC: G06F3/03 ,  G06K9/46

CPC classification number: G06F3/0304 ,  G06K9/4661

Abstract: The invention provides an ambient light sensing device which receives at least one visible light image sensed by an image sensor. The ambient light sensing device includes an image sampling unit and an analyzing unit. The image sampling unit divides the visible light image into plural image blocks, extracts at least one sample data in each image block, and generates a comparison data according to a difference between the sample data extracted at different time points. The analyzing unit analyzes the comparison data and generates an output analysis signal accordingly.

公开(公告)号：US09945726B2

公开(公告)日：2018-04-17

申请号：US15249214

申请日：2016-08-26

Applicant: PixArt Imaging Incorporation

Inventor： Ming-Han Tsai ,  Shin-Lin Wang

IPC: G01J5/16 ,  G01J5/02 ,  G01J5/12

CPC classification number: G01J5/16 ,  G01J5/024 ,  G01J5/12

Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.

公开(公告)号：US20170225944A1

公开(公告)日：2017-08-10

申请号：US15494535

申请日：2017-04-23

Applicant: PixArt Imaging Incorporation

Inventor： Chuan-Wei Wang

IPC: B81B7/00 ,  B81C1/00

CPC classification number: G01L9/0073 ,  H01L28/00

Abstract: The present invention discloses a Micro-Electro-Mechanical System (MEMS) acoustic pressure sensor device and a method for making same. The MEMS device includes: a substrate; a fixed electrode provided on the substrate; and a multilayer structure, which includes multiple metal layers and multiple metal plugs, wherein the multiple metal layers are connected by the multiple metal plugs. A cavity is formed between the multilayer structure and the fixed electrode. Each metal layer in the multilayer structure includes multiple metal sections. The multiple metal sections of one metal layer and those of at least another metal layer are staggered to form a substantially blanket surface as viewed from a moving direction of an acoustic wave.

公开(公告)号：US09660555B2

公开(公告)日：2017-05-23

申请号：US15053370

申请日：2016-02-25

Applicant: PixArt Imaging Incorporation

Inventor： Chih-Ming Sun ,  Ming-Han Tsai ,  Hsin-Hui Hsu ,  WeiChung Wang

IPC: H01L29/84 ,  H01L21/56 ,  H02N1/00 ,  B81B3/00

CPC classification number: H02N1/006 ,  B81B3/0013 ,  B81B3/007 ,  B81B2203/0118

Abstract: The invention provides a MEMS device with enhanced structural strength. The MEMS device includes a plurality of metal layers, including a top metal layer with a plurality of metal segments. The metal segments are individually connected to an adjacent metal layer immediately under the top metal layer through at least one supporting pillar, and there is no dielectric layer between the metal segments and the adjacent metal layer immediately under the top metal layer. The metal layers except the top metal layer are respectively connected to their adjacent metal layers through at least one supporting pillar and a dielectric layer filling in between.

公开(公告)号：US20160309099A1

公开(公告)日：2016-10-20

申请号：US14960178

申请日：2015-12-04

Applicant: PixArt Imaging Incorporation

Inventor： Mei-Chao Yeh ,  Chien-Jung Chou

IPC: H04N5/357 ,  H04N5/369 ,  H04N5/378

CPC classification number: H04N5/378 ,  H04N5/3577 ,  H04N5/361

Abstract: The present invention provides an image sensor circuit with a power noise filtering function and a control method thereof. The image sensor circuit includes: an image sensing unit, for sensing an image, to generate an image sensed signal; a power noise sensing unit, for sensing a power noise, to generate a power noise signal; a differential amplifier circuit, which is coupled to the image sensing unit and the power noise sensing unit, for receiving the image sensed signal and the power noise signal, to generate a differential filtered signal by a differential amplification operation between the image sensed signal and the power noise signal; and an analog-to-digital converter (ADC) circuit, which is coupled to the differential amplifier circuit, for receiving the differential filtered signal, to generate a digital image signal.

Abstract translation: 本发明提供一种具有功率噪声滤波功能的图像传感器电路及其控制方法。 图像传感器电路包括：图像感测单元，用于感测图像，以产生图像感测信号; 功率噪声感测单元，用于感测功率噪声，以产生功率噪声信号; 差分放大电路，其耦合到图像感测单元和功率噪声感测单元，用于接收图像感测信号和功率噪声信号，以通过图像感测信号和图像感测信号之间的差分放大操作产生差分滤波信号 功率噪声信号; 以及耦合到差分放大器电路的用于接收差分滤波信号的模数转换器（ADC）电路，以产生数字图像信号。

公开(公告)号：US09456171B1

公开(公告)日：2016-09-27

申请号：US14960251

申请日：2015-12-04

Applicant: PixArt Imaging Incorporation

Inventor： Chia-Ming Wu

IPC: H04N5/455 ,  H04N5/44

CPC classification number: H04N5/455

Abstract: The present invention provides a TV demodulator, which includes a TV digital-to-analog converter (TV DAC) and a calibration circuit. The TV DAC includes: a master control switch controlled by a calibration signal to generate a master current; a current distribution circuit distributing the master current to generate an analog output signal at an output terminal; a first switch electrically connected between the current distribution circuit and a first resistor; and a second switch electrically connected between the current distribution circuit and a second resistor. The calibration circuit generates the calibration signal according to the analog output signal, to feedback control the master current.

Abstract translation: 本发明提供一种TV解调器，其包括TV数模转换器（TV DAC）和校准电路。 TV DAC包括：由校准信号控制的主控开关，以产生主电流; 分配主电流以在输出端产生模拟输出信号的电流分配电路; 电连接在电流分配电路和第一电阻器之间的第一开关; 以及电连接在电流分配电路和第二电阻器之间的第二开关。 校准电路根据模拟输出信号产生校准信号，以反馈控制主电流。