公开(公告)号：US09350922B2

公开(公告)日：2016-05-24

申请号：US14037375

申请日：2013-09-26

Applicant: PixArt Imaging Inc.

Inventor： Hsin-Chi Cheng ,  En-Feng Hsu ,  Chi-Chieh Liao

IPC: H04N5/243 ,  H04N5/235 ,  H04N5/378

CPC classification number: H04N5/243 ,  H04N5/2351 ,  H04N5/37455 ,  H04N5/378

Abstract: An image sensor, which comprises: an image sensing matrix, comprising at least one image sensing unit, for generating at least one image sensing signal according to a sensed image; an amplifier, for amplifying the image sensing signal to be an amplified image sensing signal according to at least one amplifying parameter; an operational circuit, for computing at least part of brightness of the sensed image sensed by the image sensing unit according to the amplified image sensing signal to generate at least one operational brightness signal; and a control unit, for adjusting the amplifying parameter, such that brightness information generated based on brightness values, which corresponds to the operational brightness signal, falls in a predetermined range.

Abstract translation: 一种图像传感器，包括：图像感测矩阵，包括至少一个图像感测单元，用于根据感测图像生成至少一个图像感测信号; 放大器，用于根据至少一个放大参数将图像感测信号放大为放大的图像感测信号; 操作电路，用于根据放大的图像感测信号计算由图像感测单元感测的感测图像的亮度的至少一部分，以产生至少一个操作亮度信号; 以及控制单元，用于调整放大参数，使得基于与操作亮度信号相对应的亮度值生成的亮度信息落在预定范围内。

公开(公告)号：US09213448B2

公开(公告)日：2015-12-15

申请号：US14097257

申请日：2013-12-05

Applicant: PixArt Imaging Inc.

Inventor： Yu-Chia Lin ,  Chun-Yi Lu ,  Chun-Sheng Lin ,  Yu-Hsiang Huang ,  Hsin-Chi Cheng

IPC: G06F3/042

CPC classification number: G06F3/0428

Abstract: A method of calculating a coordinate of a touch medium is disclosed in the present invention. The method includes obtaining a first image to determine whether the first image overlaps a first threshold, generating a first interceptive boundary when the first image overlaps the first threshold, obtaining a second image to generate a second interceptive boundary by overlap of the second image and a second threshold, determining whether the first interceptive boundary overlaps the second interceptive boundary, and confirming a status of the touch medium according to determination.

Abstract translation: 在本发明中公开了一种计算触摸媒体坐标的方法。 该方法包括获取第一图像以确定第一图像是否与第一阈值重叠，当第一图像与第一阈值重叠时产生第一截取边界，获得第二图像以通过第二图像和第二图像的重叠生成第二截截边界 第二阈值，确定第一截取边界是否与第二截取边界重叠，以及根据确定确认触摸媒体的状态。

公开(公告)号：US09134855B2

公开(公告)日：2015-09-15

申请号：US13848720

申请日：2013-03-21

Applicant: PixArt Imaging Inc.

Inventor： Chun-Yi Lu ,  Hsin-Chi Cheng ,  Yu-Chia Lin ,  Chun-Sheng Lin

IPC: G06F3/042

CPC classification number: G06F3/0421

Abstract: A positioning module of calculating a coordinate of a touch medium is disclosed in the present invention. The positioning module includes at least one image detecting unit, a first light source, a second light source and a processor. The image detecting unit includes a lateral side and an upper side. The image detecting unit captures an image reflected from a reflection component. The first light source is disposed on the lateral side and outputs a first beam. The second light source is disposed on the upper side and outputs a second beam. The processor is electrically connected to the image detecting unit. The processor determines a touch status of the touch medium according to a first image generated by the first beam, and further determines a touch coordinate of the touch medium according to a second image generated by the second beam.

Abstract translation: 本发明公开了一种计算触摸媒体坐标的定位模块。 定位模块包括至少一个图像检测单元，第一光源，第二光源和处理器。 图像检测单元包括侧面和上侧。 图像检测单元捕获从反射分量反射的图像。 第一光源设置在横向侧并输出第一光束。 第二光源设置在上侧并输出第二光束。 处理器电连接到图像检测单元。 处理器根据由第一光束产生的第一图像来确定触摸媒体的触摸状态，并且还根据由第二光束产生的第二图像确定触摸媒体的触摸坐标。

公开(公告)号：US20140340721A1

公开(公告)日：2014-11-20

申请号：US14198547

申请日：2014-03-05

Applicant: PixArt Imaging Inc.

Inventor： Ming-Tsan Kao ,  Hsin-Chi Cheng ,  Yi-Hsien Ko

IPC: H04N1/028

CPC classification number: H04N1/02815 ,  G06F3/03542 ,  G06F3/0416 ,  G06F3/042 ,  H04N1/40056 ,  H04N5/2353 ,  H04N5/2357

Abstract: A method of synchronization adjustment is applied to an optical detecting device, so as to synchronize an exposure timing sequence of an image detector with a light emitting timing sequence of an indicating light source. The method includes acquiring a continued image set, analyzing intensity of each image of the continued image set, and adjusting the exposure timing sequence according to duty cycle of the image detector and intensity ratio of at least two images. An exposure frequency of the image detector is greater than a flickering frequency of the indicating light source.

Abstract translation: 将同步调整的方法应用于光学检测装置，以使图像检测器的曝光定时序列与指示光源的发光定时序列同步。 该方法包括获取连续图像集合，分析连续图像集合的每个图像的强度，以及根据图像检测器的占空比和至少两个图像的强度比调整曝光时序。 图像检测器的曝光频率大于指示光源的闪烁频率。

公开(公告)号：US20140253773A1

公开(公告)日：2014-09-11

申请号：US14037375

申请日：2013-09-26

Applicant: PixArt Imaging Inc.

Inventor： Hsin-Chi Cheng ,  En-Feng Hsu ,  Chi-Chieh Liao

IPC: H04N5/351 ,  H04N5/378

CPC classification number: H04N5/243 ,  H04N5/2351 ,  H04N5/37455 ,  H04N5/378

Abstract: An image sensor, which comprises: an image sensing matrix, comprising at least one image sensing unit, for generating at least one image sensing signal according to a sensed image; an amplifier, for amplifying the image sensing signal to be an amplified image sensing signal according to at least one amplifying parameter; an operational circuit, for computing at least part of brightness of the sensed image sensed by the image sensing unit according to the amplified image sensing signal to generate at least one operational brightness signal; and a control unit, for adjusting the amplifying parameter, such that brightness information generated based on brightness values, which corresponds to the operational brightness signal, falls in a predetermined range.

Abstract translation: 一种图像传感器，包括：图像感测矩阵，包括至少一个图像感测单元，用于根据感测图像生成至少一个图像感测信号; 放大器，用于根据至少一个放大参数将图像感测信号放大为放大的图像感测信号; 操作电路，用于根据放大的图像感测信号计算由图像感测单元感测的感测图像的亮度的至少一部分，以产生至少一个操作亮度信号; 以及控制单元，用于调整放大参数，使得基于与操作亮度信号相对应的亮度值生成的亮度信息落在预定范围内。

公开(公告)号：US20140146016A1

公开(公告)日：2014-05-29

申请号：US13848720

申请日：2013-03-21

Applicant: PIXART IMAGING INC.

Inventor： Chun-Yi Lu ,  Hsin-Chi Cheng ,  Yu-Chia Lin ,  Chun-Sheng Lin

IPC: G06F3/042

CPC classification number: G06F3/0421

Abstract: A positioning module of calculating a coordinate of a touch medium is disclosed in the present invention. The positioning module includes at least one image detecting unit, a first light source, a second light source and a processor. The image detecting unit includes a lateral side and an upper side. The image detecting unit captures an image reflected from a reflection component. The first light source is disposed on the lateral side and outputs a first beam. The second light source is disposed on the upper side and outputs a second beam. The processor is electrically connected to the image detecting unit. The processor determines a touch status of the touch medium according to a first image generated by the first beam, and further determines a touch coordinate of the touch medium according to a second image generated by the second beam.

Abstract translation: 本发明公开了一种计算触摸媒体坐标的定位模块。 定位模块包括至少一个图像检测单元，第一光源，第二光源和处理器。 图像检测单元包括侧面和上侧。 图像检测单元捕获从反射分量反射的图像。 第一光源设置在横向侧并输出第一光束。 第二光源设置在上侧并输出第二光束。 处理器电连接到图像检测单元。 处理器根据由第一光束产生的第一图像来确定触摸媒体的触摸状态，并且还根据由第二光束产生的第二图像确定触摸媒体的触摸坐标。