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公开(公告)号：US20200153481A1
公开(公告)日：2020-05-14
申请号：US16737047
申请日：2020-01-08
Applicant: PixArt Imaging Inc.
Inventor： Yung-Wei CHEN , Yen-Chang WANG , Yen-Min CHANG , Hsin-Chia CHEN
Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.
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公开(公告)号：US20170139536A1
公开(公告)日：2017-05-18
申请号：US14941256
申请日：2015-11-13
Applicant: PIXART IMAGING INC.
Inventor： Hsin-Chia CHEN , Kenneth CRANDALL , Raman SAHGAL
CPC classification number: G06F3/0418 , G06F3/0416 , G06F3/044
Abstract: A capacitive touch system including a capacitive touch panel, a storage element and a control chip is provided. The storage element is configured to store a lookup table which contains a plurality of mixing signals. The control chip concurrently drives the capacitive touch panel with a plurality of frequency division multiplexed drive signals to generate a plurality of detection signals, and determine a plurality pairs of mixing signals according to the lookup table for respectively modulating the detection signals to generate a plurality pairs of modulated detection signals, wherein the pair of mixing signals corresponding to different drive signals are different from one another.
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3.发明申请OPTICAL ENCODER CAPABLE OF IDENTIFYING ABSOLUTE POSITIONS AND OPERATING METHOD THEREOF 审中-公开识别绝对位置的光学编码器及其操作方法公开(公告)号：US20170061226A1
公开(公告)日：2017-03-02
申请号：US15347309
申请日：2016-11-09
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
CPC classification number: G06K9/2036 , G01D5/34 , G06F3/0312 , G06K9/00986 , G06K9/2027 , G06K9/4661 , H04N5/2256 , H04N19/00
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.
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。
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公开(公告)号：US20140055393A1
公开(公告)日：2014-02-27
申请号：US13973948
申请日：2013-08-22
Applicant: PixArt Imaging Inc.
Inventor： Hsin-Chia CHEN , Tse-Chung SU , Ming-Tsan KAO
IPC: G06F3/041
CPC classification number: G06F3/0416 , G06F3/03547 , G06F3/042 , G06F3/044 , G06F2203/04104
Abstract: A multipoint positioning method for a touchpad including the steps of: scanning a touchpad to retrieve two-dimensional data; calculating an object area and a number of maxima of local maxima in the two-dimensional data; comparing the object area with an area threshold when the number of maxima is larger than 1; and identifying positions of the local maxima as a plurality of contact positions when the object area is larger than or equal to the area threshold.
Abstract translation: 一种用于触摸板的多点定位方法，包括以下步骤：扫描触摸板以检索二维数据; 计算二维数据中的物体区域和最大值的最大值; 当最大值大于1时，将对象区域与面积阈值进行比较; 以及当所述对象区域大于或等于所述面积阈值时，将所述局部最大值的位置识别为多个接触位置。
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公开(公告)号：US20170373719A1
公开(公告)日：2017-12-28
申请号：US15677472
申请日：2017-08-15
Applicant: PixArt Imaging Inc.
Inventor： Yung-Wei CHEN , Yen-Chang WANG , Yen-Min CHANG , Hsin-Chia CHEN
CPC classification number: H04B5/0012 , G06F3/0416 , G06F3/044
Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.
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Patent Agency Ranking
公开(公告)号：US20160345847A1
公开(公告)日：2016-12-01
申请号：US15231690
申请日：2016-08-08
Applicant: PIXART IMAGING INC.
Inventor： Ren-Hau GU , Hsin-Chia CHEN , Raman SAHGAL , Jung-Tai LIN
IPC: A61B5/024 , G06F3/03 , G06F3/0354 , A61B5/11 , G01C11/02
CPC classification number: A61B5/02427 , A61B5/02416 , A61B5/02438 , A61B5/1118 , G01C11/02 , G06F1/3259 , G06F3/011 , G06F3/014 , G06F3/015 , G06F3/0317 , G06F3/03543 , G06F3/03547 , G06F3/0383 , G06F2203/0338 , Y02D10/155
Abstract: A physiological detection device including a light source, an image sensor and a processor is provided. The light source illuminates a skin surface using a burst mode. The image sensor receives ejected light from skin tissues under the skin surface at a sampling frequency to successively generate image frames. The processor controls the light source and the image sensor, and calculates a physiological characteristic according to the image frames captured when the light source is illuminating light. The physiological detection device reduces the total power consumption by adopting the burst mode.
Abstract translation: 提供了包括光源，图像传感器和处理器的生理检测装置。 光源使用突发模式照亮皮肤表面。 图像传感器以采样频率从皮肤表面下的皮肤组织接收弹射光，以连续生成图像帧。 处理器控制光源和图像传感器，并且根据当光源照亮光时捕获的图像帧来计算生理特性。 生理检测装置采用突发模式来降低总功耗。
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公开(公告)号：US20160282996A1
公开(公告)日：2016-09-29
申请号：US15176687
申请日：2016-06-08
Applicant: PixArt Imaging Inc.
Inventor： Sung-Han WU , Yu-Han CHEN , Ming-Hung TSAI , Meng-Lin YU , Hsin-Chia CHEN
CPC classification number: G06F3/044 , G06F3/0418
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.
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公开(公告)号：US20140204046A1
公开(公告)日：2014-07-24
申请号：US13746883
申请日：2013-01-22
Applicant: PIXART IMAGING INC.
Inventor： En-Feng HSU , Ken CRANDALL , Hsin-Chia CHEN , Ming-Tsan KAO
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F3/0416
Abstract: There is provided a capacitive touch sensing device including a sensing element, a drive unit, a detection circuit and a processing unit. The sensing element has a first electrode and a second electrode configured to form a coupling capacitance therebetween. The drive unit is configured to input a drive signal to the sensing element. The detection circuit is configured to detect a detection signal coupled to the second electrode from the drive signal through the coupling capacitance and to modulate the detection signal respectively with two signals to generate a two-dimensional detection vector. The processing unit identifies a touch event according to the two-dimensional detection vector.
Abstract translation: 提供了包括感测元件，驱动单元，检测电路和处理单元的电容式触摸感测装置。 感测元件具有第一电极和第二电极，其被配置为在它们之间形成耦合电容。 驱动单元被配置为向感测元件输入驱动信号。 检测电路被配置为通过耦合电容从驱动信号检测耦合到第二电极的检测信号，并分别用两个信号调制检测信号以产生二维检测向量。 处理单元根据二维检测向量来识别触摸事件。
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公开(公告)号：US20130113759A1
公开(公告)日：2013-05-09
申请号：US13632381
申请日：2012-10-01
Applicant: PixArt Imaging Inc.
Inventor： Ren-Hau GU , Yu-Hao HUANG , Hsin-Chia CHEN , Yen-Min CHANG
IPC: G06F3/042
CPC classification number: G06F3/0416 , G06F3/03547 , G06F3/0421
Abstract: There is provided a displacement detection device including a light source, an image sensor and a processing unit. The light source provides light to a finger with a light source parameter. The image sensor receives reflected light from the finger, outputs valid images when the light source is being turned on and outputs dark images when the light source is being turned off. The processing unit determines a contact status according to one of the dark images and one of the valid images, and calculates a displacement according to two of the valid images to accordingly adjust the light source parameter.
Abstract translation: 提供了一种包括光源，图像传感器和处理单元的位移检测装置。 光源为手指提供光源参数。 图像传感器从手指接收反射光，当光源打开时输出有效图像，并在光源关闭时输出暗影像。 处理单元根据暗图像和其中一个有效图像确定接触状态，并且根据两个有效图像计算位移，以相应地调整光源参数。
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公开(公告)号：US20170346529A1
公开(公告)日：2017-11-30
申请号：US15677580
申请日：2017-08-15
Applicant: PixArt Imaging Inc.
Inventor： Yung-Wei CHEN , Yen-Chang WANG , Yen-Min CHANG , Hsin-Chia CHEN
CPC classification number: H04B5/0012 , G06F3/0416 , G06F3/044
Abstract: There is provided a capacitive communication system including an object and a capacitive touch panel. The object includes a plurality of induction conductors configured to have different potential distributions at different time intervals by modulating respective potentials thereof. The capacitive touch panel includes a plurality of sensing electrodes configured to form a coupling electric field with the induction conductors to detect the different potential distributions at the different time intervals. When the different potential distributions match a predetermined agreement between the object and the capacitive touch panel, a near field communication is formed between the object and the capacitive touch panel.
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