公开(公告)号：US20160170516A1

公开(公告)日：2016-06-16

申请号：US14565622

申请日：2014-12-10

Applicant: PIXART IMAGING INC.

Inventor： KEN CRANDALL ,  CHUNG-WEN LO ,  DAVID TOUNEY ,  TOM MURPHY ,  HSIN-CHIA CHEN

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.

Abstract translation: 提供了一种包括触摸面板，检测电路和处理单元的电容式触摸装置。 触摸面板包括多个驱动电极和被配置为与外部触摸面板形成耦合电场的多个接收电极，并且接收电极分别被配置为输出检测信号。 检测电路耦合到接收电极中的一个并被配置为用两个信号调制检测信号以产生两个检测分量。 处理单元被配置为根据两个检测组件获得相位值，以相应地解码发送数据。

公开(公告)号：US20170228059A1

公开(公告)日：2017-08-10

申请号：US15016484

申请日：2016-02-05

Applicant: PIXART IMAGING INC.

Inventor： HSIN-CHIA CHEN ,  KENNETH CRANDALL ,  THOMAS PATRICK MURPHY

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F3/0418

Abstract: A capacitive touch system including a drive end, a capacitive sensing matrix and a detection end is provided. The drive end concurrently inputs encoded and modulated drive signals into a plurality of channels of the capacitive sensing matrix within each drive time slot of a frame. The detection end detects a detection matrix of the channels in the frame and decodes the detection matrix to respectively generate a two-dimensional detection vector corresponding to each of the channels. The detection end further calculates a subtraction between components of the two-dimensional detection vectors associated with two receiving electrodes of the capacitive sensing matrix to eliminate interference from noises.

公开(公告)号：US20150138130A1

公开(公告)日：2015-05-21

申请号：US14085934

申请日：2013-11-21

Applicant: PIXART IMAGING INC.

Inventor： TOM MURPHY ,  HSIN-CHIA CHEN ,  WILLIAM HAN ,  RAMAN SAHGAL

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: There is provided a capacitive touch system including a gain control unit sequentially receiving a plurality of digital detected signals of a detection frame. The gain control unit includes a gain buffer and a control circuit. The gain buffer is configured to store a current gain sheet. The control circuit calculates a first gain sheet according to a setpoint and the digital detected signals of the detection frame, compares a current roughness of the current gain sheet with a first roughness of the first gain sheet and replaces the current gain sheet in the gain buffer by the first gain sheet when the first roughness is flatter than the current roughness.

Abstract translation: 提供了一种电容式触摸系统，其包括依次接收检测帧的多个数字检测信号的增益控制单元。 增益控制单元包括增益缓冲器和控制电路。 增益缓冲器配置为存储当前增益表。 控制电路根据设定点和检测帧的数字检测信号来计算第一增益片，将当前增益片的当前粗糙度与第一增益片的第一粗糙度进行比较，并将增益缓冲器中的当前增益片代替 当第一粗糙度比当前粗糙度更平坦时，通过第一增益片。

公开(公告)号：US20160026283A1

公开(公告)日：2016-01-28

申请号：US14337325

申请日：2014-07-22

Applicant: PIXART IMAGING INC.

Inventor： CHUNG-WEN LO ,  TOM MURPHY ,  HSIN-CHIA CHEN

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0338 ,  G06F3/03547 ,  G06F3/0412

Abstract: There is provided an operating method of a capacitive finger navigation device including the steps of: calculating a touch coordinate according to a predetermined position coordinate and associated detected variation of each of a plurality of detecting cells when the associated detected variations of the detecting cells exceed a threshold; mapping the touch coordinate to a touch position associated with a touch surface; entering a relative motion mode when the touch position is in a first area; and entering an absolute coordinate mode when the touch position is in a second area.

Abstract translation: 提供了一种电容手指导航装置的操作方法，包括以下步骤：当检测单元的相关联的检测变化超过一个时，根据预定位置坐标和相关联的检测到的多个检测单元的检测变化来计算触摸坐标 阈; 将所述触摸坐标映射到与触摸表面相关联的触摸位置; 当触摸位置处于第一区域时进入相对运动模式; 并且当触摸位置处于第二区域时进入绝对坐标模式。

公开(公告)号：US20150262361A1

公开(公告)日：2015-09-17

申请号：US14573023

申请日：2014-12-17

Applicant: PIXART IMAGING INC.

Inventor： CHUNG-WEN LO ,  HSIN-CHIA CHEN

IPC: G06T7/00 ,  G06T7/40

CPC classification number: G06F3/0312

Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface or any reference object with particular markers. The precise coding reference data can be generated by detecting surface features of the working surface.

Abstract translation: 本公开涉及一种光学编码器，其被配置为通过特征识别技术提供精确的编码参考数据。 为了应用本公开，不需要在工作表面或具有特定标记的任何参考对象上提供特定的致密图案。 可以通过检测工作表面的表面特征来产生精确的编码参考数据。

公开(公告)号：US20140105465A1

公开(公告)日：2014-04-17

申请号：US14138426

申请日：2013-12-23

Applicant: PixArt Imaging Inc.

Inventor： SHU-SIAN YANG ,  REN-HAU GU ,  HSIN-CHIA CHEN ,  SEN-HUANG HUANG

IPC: G01B11/14 ,  G06K9/64

CPC classification number: G01B11/14 ,  G01B11/002 ,  G01S17/08 ,  G06K9/64

Abstract: A distance measurement system and method are provided. The distance measurement method first projects a light beam with a speckle pattern to reference planes and an object to allow the reference planes and a surface of the object each have an image of the speckle pattern, the speckle pattern having a plurality of speckles. Next, images of the speckle pattern reflected by the reference planes are captured to generate reference image information, and an image of the speckle pattern reflected by the surface of the object is captured to generate an object image information. A processing module which may be a processing software can compare the object image information with the reference image information to obtain several similarity scores. If the most the most similarity score is greater than a threshold value, the processing module identifies the corresponding reference plane, thereby computing the position of the object.

Abstract translation: 提供了距离测量系统和方法。 距离测量方法首先将具有散斑图案的光束投射到参考平面，并且使对象允许参考平面和物体的表面各自具有斑点图案的图像，斑点图案具有多个斑点。 接下来，捕获由参考平面反射的斑纹图案的图像以生成参考图像信息，并且捕获由对象的表面反射的斑纹图案的图像以生成对象图像信息。 可以是处理软件的处理模块可以将对象图像信息与参考图像信息进行比较，以获得多个相似度分数。 如果最相似性得分大于阈值，则处理模块识别对应的参考平面，由此计算对象的位置。

公开(公告)号：US20170205901A1

公开(公告)日：2017-07-20

申请号：US15478980

申请日：2017-04-04

Applicant: PIXART IMAGING INC.

Inventor： CHING-LIN CHUNG ,  HSIN-CHIA CHEN

IPC: G06F3/03 ,  G06F3/038 ,  G06F3/0354

CPC classification number: G06F3/0312 ,  G06F1/1652 ,  G06F3/0317 ,  G06F3/03543 ,  G06F3/0383

Abstract: An optical encoder has a displacement generating unit, a light-emitting unit and an optical navigation integrated circuit. The displacement generating unit has an axle body movable along a central axial line thereof. The axle body has a free end with a diameter larger than a part of the axle body and a planar working surface formed on the free end. The light-emitting unit is configured for operatively providing a light beam to irradiate the working surface of the displacement generating unit. The light beam has a divergence angle within a range to reduce scattering. The optical navigation integrated circuit receives the reflected light beam reflected by the working surface, and calculates a relative displacement between the optical navigation integrated circuit and the working surface.

公开(公告)号：US20150116480A1

公开(公告)日：2015-04-30

申请号：US14450377

申请日：2014-08-04

Applicant: PIXART IMAGING INC.

Inventor： CHIA-CHEUN LIANG ,  MING-TSAN KAO ,  YI-HSIEN KO ,  HSIN-CHIA CHEN

IPC: H04N7/18 ,  G08G1/16 ,  G06K9/00

CPC classification number: G05D1/0246

Abstract: There is provided a mobile carrier and an auto following system using the mobile carrier. The mobile carrier is capable of capturing at least an image of a guiding light source and automatically following the guiding light source based on the captured image of the guiding light source. The mobile carrier is further disposed with a mobile light source for a remote image sensing device to capture an image of the mobile light source while the mobile carrier cannot capture the image of the guiding light source, so that the mobile carrier can be guided by a control signal provided according to the captured image of the mobile light source.

Abstract translation: 提供了使用移动运营商的移动运营商和自动跟踪系统。 移动载体能够至少捕获引导光源的图像，并且基于引导光源的捕获图像自动跟随引导光源。 移动载体进一步设置有用于远程图像感测装置的移动光源以捕获移动光源的图像，同时移动载体不能捕获引导光源的图像，使得移动载体可以被引导 根据移动光源的拍摄图像提供的控制信号。

公开(公告)号：US20130329963A1

公开(公告)日：2013-12-12

申请号：US13967430

申请日：2013-08-15

Applicant: PixArt Imaging Inc.

Inventor： SHU-SIAN YANG ,  HSIN-CHIA CHEN ,  REN-HAU GU ,  SEN-HUANG HUANG

IPC: G06K9/62

CPC classification number: G06K9/6215 ,  G01B11/026 ,  G01S17/46

Abstract: A storage media provided by the present invention, has a non-transitory processing software for computing a position of an object in a distance measurement system, the execution of the processing software comprising: receiving a plurality of reference image information contained in an image with a speckle pattern, wherein the image is projected from a light beam on a plurality of reference flat surfaces which are located on different position points, and the speckle contains a plurality of speckles; receiving an object image information contained in an image with the speckle pattern which is projected from the light beam on an object; obtaining a plurality of comparison results through comparing the plurality of reference image information with the object image information; and computing the position of the object through performing an interpolation operation to the plurality of comparison results.

Abstract translation: 由本发明提供的存储介质具有用于计算距离测量系统中的对象的位置的非暂时性处理软件，所述处理软件的执行包括：接收包含在图像中的多个参考图像信息 斑纹图案，其中图像从位于不同位置点上的多个参考平面上的光束投射，并且斑点包含多个斑点; 接收包含在图像中的物体图像信息，其中所述斑点图案从光束投影在物体上; 通过将多个参考图像信息与对象图像信息进行比较来获得多个比较结果; 以及通过对所述多个比较结果执行内插操作来计算所述对象的位置。

公开(公告)号：US20190138832A1

公开(公告)日：2019-05-09

申请号：US16238230

申请日：2019-01-02

Applicant: PixArt Imaging Inc.

Inventor： BOON-HOW KOK ,  KEEN-HUN LEONG ,  CHING-GEAK CHAN ,  CHIANG-HEE LIM ,  CHU-LEIK HO ,  HSIN-CHIA CHEN ,  YEN-MIN CHANG

IPC: G06K9/20 ,  G06K9/00 ,  G06F3/03 ,  H04N19/00 ,  G01D5/34 ,  G06K9/46

Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.