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31. 发明授权

US10379192B2 Scheme capable of calibrating value of sampling precision of optical sensor for tracking 有权
公开(公告)号：US10379192B2
公开(公告)日：2019-08-13
申请号：US15213411
申请日：2016-07-19
申请人： PixArt Imaging (Penang) SDN. BHD.
发明人： Chiang Hee Lim
IPC分类号： G01S3/78 , B41J29/38 , G01S3/786
摘要： A method for calibrating a value of sampling precision of an optical sensor for tracking includes: reading a precision variance and a setting precision value from a memory device; measuring the sampling precision of the optical sensor under a normal mode to generate an actually measured precision value; calculating a normalized value that is proportional to the actually measured precision value according to the precision variance, the actually measured precision value, and the setting precision value; and, calibrating the actually measured precision value by using the normalized value.

32. 发明授权

US10181310B2 Method for syncing mouse report rate and screen refresh rate 有权
公开(公告)号：US10181310B2
公开(公告)日：2019-01-15
申请号：US15369892
申请日：2016-12-06
申请人： PixArt Imaging (Penang) SDN. BHD.
发明人： Kevin Len-Li Lim , Willie Song
IPC分类号： G09G5/12 , G06F3/0354 , G06F3/038 , G09G5/36
摘要： A method for synchronizing a mouse report rate with a screen refresh rate of a computer includes: utilizing the computer to inform the mouse of a time period of each screen refresh; and adjusting the mouse report rate in accordance with the time period so that an equal integer number of frames will be reported in each screen refresh. Another method includes: determining a screen refresh rate of the computer; setting a target number of frames to be reported to the computer in each screen refresh period; scaling a motion report count of the mouse to generate a post-processed motion report count which corresponds to the target number of frames; and utilizing the post-processed motion report count to add or subtract frames to the number of frames reported during the mouse report period.

33. 发明授权

US10175067B2 Scheme for interrupt-based motion reporting 有权
公开(公告)号：US10175067B2
公开(公告)日：2019-01-08
申请号：US14964501
申请日：2015-12-09
申请人： PixArt Imaging (Penang) SDN. BHD.
发明人： Tong Sen Liew , Boon-How Kok
IPC分类号： G01B11/14 , G01D5/28 , B41J29/38 , G06F3/00 , G06F3/03 , G06F3/0354
摘要： A method for reporting motion information from an electronic device to a remote host device includes: using an optical sensor for sensing the motion information of the electronic device, the optical sensor being configured within the electronic device; and reporting a motion result of the electronic device to the remote host device based on the optical sensor when the electronic device has moved a predetermined distance each time.

34. 发明授权

US10026765B2 Apparatus and sensor chip component attaching method 有权
公开(公告)号：US10026765B2
公开(公告)日：2018-07-17
申请号：US14937890
申请日：2015-11-11
申请人： PixArt Imaging (Penang) SDN. BHD.
发明人： Chee Pin T'Ng , Sai Mun Lee
IPC分类号： H01L31/0232 , H01L21/8222 , H01L27/146 , G02B7/02 , G02B27/00
摘要： An apparatus includes a lens component and an integrated circuit package. The lens component has a lens and a through hole from a specific surface to a bottom surface of the lens component. The integrated circuit package has a sensor and a second portion on a top surface of the integrated circuit package. The first portion on the bottom surface of the lens component is adjacent and attached to the second portion on the top surface of the integrated circuit package by an adhesive material that is injected via the through hole to the first portion and the second portion, for fixing the lens component to the integrated circuit package.

35. 发明授权

US10020029B1 Voltage scaling-up circuit and bulk biasing method thereof 有权
公开(公告)号：US10020029B1
公开(公告)日：2018-07-10
申请号：US15477519
申请日：2017-04-03
申请人： PixArt Imaging (Penang) SDN. BHD.
发明人： Kok-Siang Tan
IPC分类号： G05F3/02 , H02M3/07 , G11C5/14 , H02M3/137 , H02M3/158
CPC分类号： G11C5/145 , G11C5/147 , H02M3/073 , H02M2003/076 , H02M2003/078
摘要： The present invention provides a voltage scaling-up circuit which comprises a charge pump circuit and a multiplexer circuit. The charge pump circuit which includes at least one pumping switch, and is configured to operably periodically converts an input voltage to a pumped voltage onto a pump output node through the at least one pumping switch by charging and pumping, such that the pumped voltage has a scaling factor over the input voltage, wherein the at least one pumping switch has a bulk. The multiplexer circuit senses a predetermined voltage and the pumped voltage and selects one of the predetermined voltage and the pumped voltage which has a higher magnitude as a scaled output voltage at a scaled output node; wherein the bulk of the at least one pumping switch is biased to the scaled output voltage.

36. 发明授权

US09874943B2 Optical navigation device with enhanced tracking speed 有权
公开(公告)号：US09874943B2
公开(公告)日：2018-01-23
申请号：US14597592
申请日：2015-01-15
申请人： PIXART IMAGING (PENANG) SDN. BHD.
发明人： Willie Song , Zi Hao Tan , Joon Chok Lee
IPC分类号： G06F3/03 , H04N5/374 , G06F3/038 , G06F3/0354
CPC分类号： G06F3/0317 , G06F3/03543 , G06F3/038 , H04N5/374
摘要： An optical navigation device for controlling an operation of a pointer on a display apparatus is provided, the optical navigation device includes a device body, a substrate, a light source, an image sensor, and a processing module. The light source, the image sensor, and the processing module are respectively disposed on the substrate. The device body has a housing with an accommodating space formed therein. The substrate is arranged in the accommodating space of the housing. The light source operatively generates a light illuminating a navigation surface of the optical navigation device through the opening of the housing. The image sensor is oriented at a preset angle with respect to a long axis of device body and is configured for capturing images of the navigation surface. The processing module generates a displacement information of the optical navigation device relative to the navigation surface according to the images captured.

37. 发明授权

US09864437B2 Circuit and method for detecting working and resting states for optical mouse 有权
公开(公告)号：US09864437B2
公开(公告)日：2018-01-09
申请号：US15077872
申请日：2016-03-22
申请人： PIXART IMAGING (PENANG) SDN. BHD.
发明人： Kwai Lee Pang , Kevin Len-Li Lim
IPC分类号： G06F3/03 , G06F3/0354 , G06F3/0346 , G01J1/44 , G06F3/033 , G06F3/038
CPC分类号： G06F3/0317 , G01J1/44 , G01J2001/442 , G06F3/033 , G06F3/0346 , G06F3/0354 , G06F3/03543 , G06F3/038 , G06F3/0383
摘要： Disclosed is a circuit for detecting working and resting states for an optical mouse. During each frame capture, a counting unit of the digital logic circuit outputs a first counting signal to turn on a switching transistor, such that the voltage of the pixel capacitor varies from its predetermined voltage, and the counting unit starts to count. The automatic gain control module outputs a second counting signal as the voltage of the pixel capacitor varies one threshold from the predetermined voltage, such that the counting unit stops counting and outputs a counting value. A computing unit computes a difference between the counting value and a reference counting value. The optical mouse is in a resting state if the difference is equal to or smaller than a threshold difference, and otherwise the optical mouse is in a working state.

38. 发明授权

US09661234B2 Image processing method and image processing system assigning different gains to different sections 有权
公开(公告)号：US09661234B2
公开(公告)日：2017-05-23
申请号：US14801083
申请日：2015-07-16
申请人： PixArt Imaging (Penang) SDN. BHD.
发明人： Kwai-Lee Pang , Swee-Lin Thor
IPC分类号： H04N3/14 , H04N5/335 , H04N5/235 , H04N5/232 , H04N5/243
CPC分类号： H04N5/2353 , H04N5/23229 , H04N5/2351 , H04N5/243 , H04N5/3535
摘要： The present invention discloses an image processing method and an image processing system adopting the same. The method includes the steps of: (a) obtaining a pixel array representing an image; (b) segmenting the pixel array into two or more non-overlapping regions; (c) identifying a capacitor discharging rate of each of the regions; (d) generating a pulse width modulation (PWM) signal when a voltage level dropping of a capacitor exceeds a predetermined threshold; and (e) applying exposure parameters to the regions according to the capacitor discharging rate of the regions, respectively, wherein the exposure parameter applied to one of the regions is different from the exposure parameter applied to at least another one of the regions.

39. 发明授权

US09456153B2 Pixel image non-uniformity compensation method based on capacitance trimming and image sensor having pixels with variable capacitors for non-uniformity compensation 有权
标题翻译：基于电容微调的像素图像不均匀补偿方法和具有可变电容器的像素的图像传感器用于非均匀性补偿
公开(公告)号：US09456153B2
公开(公告)日：2016-09-27
申请号：US14599513
申请日：2015-01-18
申请人： Kwai-Lee Pang , Sai-Mun Lee
发明人： Kwai-Lee Pang , Sai-Mun Lee
IPC分类号： H04N5/335 , H04N9/68 , H04N5/357 , H04N5/217 , H04N5/355
CPC分类号： H04N5/3572 , H04N5/2173 , H04N5/3559 , H04N5/3651
摘要： The present invention discloses a method for pixel image non-uniformity compensation. The method including the steps of: first, receiving an input image by an image sensor having a plurality of pixels, wherein each pixel includes a variable capacitor; next, calculating brightness information of at least a portion of the pixels; and further, trimming the capacitances of the variable capacitors in the portion of pixels respectively according to the brightness information.
摘要翻译：本发明公开了一种像素图像不均匀补偿的方法。该方法包括以下步骤：首先，通过具有多个像素的图像传感器接收输入图像，其中每个像素包括可变电容器; 接下来，计算至少一部分像素的亮度信息; 并且还根据亮度信息分别调整像素部分中的可变电容器的电容。

40. 发明授权

US09300937B2 Color image sensor and operating method thereof 有权
标题翻译：彩色图像传感器及其操作方法
公开(公告)号：US09300937B2
公开(公告)日：2016-03-29
申请号：US14315470
申请日：2014-06-26
申请人： PIXART IMAGING (PENANG) SDN.BHD.
发明人： Kevin Len-Li Lim , Willie Song , Keng-Yeen Lye
IPC分类号： H04N9/73 , H04N9/04
CPC分类号： H04N9/735 , H04N9/04 , H04N9/045
摘要： There is provided a color image sensor including a sensing array and a processing unit. The sensing array includes a red pixel, a green pixel, a blue pixel, a red and green pixel and a red and blue pixel configured to output a detected signal, respectively. The processing unit is configured to calculate a signal difference between detected signals associated with the red pixel and the red and green pixel to be served as a red detected signal, calculate a signal difference between detected signals associated with the green pixel and the red and green pixel to be served as a green detected signal, and calculate a signal difference between detected signals associated with the blue pixel and the red and blue pixel to be served as a blue detected signal.
摘要翻译：提供了包括感测阵列和处理单元的彩色图像传感器。感测阵列包括红色像素，绿色像素，蓝色像素，红色和绿色像素以及被配置为输出检测信号的红色和蓝色像素。处理单元被配置为计算与红色像素相关联的检测信号与要被用作红色检测信号的红色和绿色像素之间的信号差，计算与绿色像素相关联的检测信号与红色和绿色之间的信号差像素被用作绿色检测信号，并且计算与蓝色像素相关联的检测信号与要被用作蓝色检测信号的红色和蓝色像素之间的信号差。

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