公开(公告)号：US20230139484A1

公开(公告)日：2023-05-04

申请号：US18088798

申请日：2022-12-27

申请人： PixArt Imaging Inc.

发明人： GUO-ZHEN WANG

IPC分类号： B25J9/16 ,  A47L11/40 ,  B25J11/00 ,  A47L9/28

摘要： There is provided an electronic device including a light source module, an image sensor and a processor. The light source module projects a first pattern and a second pattern toward a moving direction. The image sensor captures an image of the first pattern and an image of the second pattern. The processor calculates one-dimensional depth information according to the image of the first pattern and calculates two-dimensional depth information according to the image of the second pattern.

公开(公告)号：US11632502B2

公开(公告)日：2023-04-18

申请号：US17471260

申请日：2021-09-10

申请人： PIXART IMAGING INC.

发明人： En-Feng Hsu

IPC分类号： H04N5/235

摘要： There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor adds the first image frame to the second image frame to generate a sum of image frames for the motion detection. Or, the optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.

公开(公告)号：US11615684B2

公开(公告)日：2023-03-28

申请号：US17320222

申请日：2021-05-14

申请人： PixArt Imaging Inc.

发明人： Cheng-Nan Tsai ,  Guo-Zhen Wang ,  Ching-Kun Chen ,  Yen-Chang Chu ,  Chih-Ming Sun

IPC分类号： G08B17/107

摘要： There is provided a smoke detector including a light source, a reflective surface, a light sensor and a processor. The light sensor receives reflected light when the light source emits light toward the reflective surface, and generates a reference detection signal when there is no smoke. The processor receives the detection signal from the light sensor, and automatically selects a set of predetermined condition thresholds according to a profile of the detection signal to be compared with the detection signal thereby determining whether to generate an alarm according to the comparison result.

公开(公告)号：US11614322B2

公开(公告)日：2023-03-28

申请号：US16881437

申请日：2020-05-22

申请人： PixArt Imaging Inc.

发明人： Wen-Han Yao ,  Wen-Cheng Yen ,  Han-Chang Lin

IPC分类号： H04N5/235 ,  G01B11/14 ,  G06V10/40 ,  G06V10/60 ,  G06V10/46

摘要： There is provided an imaging system including a camera and a control host. The camera identifies ambient light intensity and performs trigger event detection in a low power mode. When the camera detects a trigger event in the low power mode, the control host is woken up. The camera also determines an exposure mode according the ambient light intensity and informs the exposure mode to the control host such that an operating mode of the control host after being woken up matches the exposure mode of the camera.

公开(公告)号：US20230093565A1

公开(公告)日：2023-03-23

申请号：US18070680

申请日：2022-11-29

申请人： PixArt Imaging Inc.

发明人： WEN-HAN YAO ,  WEN-CHENG YEN ,  HAN-CHANG LIN

IPC分类号： G01B11/14 ,  H04N5/235 ,  G06V10/40 ,  G06V10/60

摘要： There is provided an imaging system including a camera and a control host. The camera identifies ambient light intensity and performs trigger event detection in a low power mode. When the camera detects a trigger event in the low power mode, the control host is woken up. The camera also determines an exposure mode according the ambient light intensity and informs the exposure mode to the control host such that an operating mode of the control host after being woken up matches the exposure mode of the camera.

公开(公告)号：US11609642B2

公开(公告)日：2023-03-21

申请号：US17862420

申请日：2022-07-12

申请人： PixArt Imaging Inc.

发明人： Feng-Chi Liu ,  Ching-Lin Chung

IPC分类号： G06F3/03 ,  G06F3/0362 ,  G06F3/02 ,  G06F3/0354 ,  G04C3/00 ,  G04G21/00 ,  E05B37/00 ,  G06F1/16

摘要： A method of an optical sensor apparatus which is to be used with a controlling device arranged for controlling an object having a long shape and flexible form of a material, includes: using a light emitting circuit to generate and output a light ray to a surface of a portion of the object; sensing the light ray reflected from the surface for multiple times to generate multiple images; detecting at least one motion image in the generated multiple images; and, determining a motion, an offset, or a rotation angle of the object, which is controlled by the thread controlling device, according to the detected at least one motion image.

公开(公告)号：US11599221B2

公开(公告)日：2023-03-07

申请号：US16991277

申请日：2020-08-12

申请人： PixArt Imaging Inc.

发明人： Sung-Han Wu

IPC分类号： G06F3/041 ,  G06F3/044

摘要： There is provided a capacitive touch device including a touch panel and a control chip. The touch panel includes a detection electrode configured to form a self-capacitor. The control chip includes an emulation circuit and a subtraction circuit. The emulation circuit is configured to output a reference signal. The subtraction circuit is coupled to the emulation circuit and the detection electrode, subtracts the reference signal outputted by the emulation circuit from a detected signal outputted by the detection electrode to output a differential detected signal, and identifies a touch event according to an amplified differential detected signal so as to improve the touch sensitivity.

公开(公告)号：US20230059880A1

公开(公告)日：2023-02-23

申请号：US17979000

申请日：2022-11-02

申请人： PixArt Imaging Inc.

发明人： Guo-Zhen Wang

IPC分类号： A47L9/28 ,  A47L9/30

摘要： A dirtiness level determining method, applied to a robot cleaner comprising an image sensor, comprising: capturing an image of a reference surface as a reference image: capturing a current image; calculating a fixed pattern according to a difference between the reference image and the current image; calculating a dirtiness level of the image sensor according to the fixed pattern; and generating a notifying message if the dirtiness level is higher than a dirtiness threshold. The dirtiness level of the image sensor can be automatically determined by the robot cleaner, thus the user can be notified before the auto clean machine cannot normally operate.

公开(公告)号：US11587308B2

公开(公告)日：2023-02-21

申请号：US17203772

申请日：2021-03-17

申请人： PixArt Imaging Inc.

发明人： Guo-Zhen Wang

IPC分类号： G06K9/00 ,  G06V20/10

摘要： An object determining system, comprising: an optical sensor, comprising a kind determining region and an element analyzing region, wherein the optical sensor acquires first optical data via the kind determining region, and acquires second optical data via the element analyzing region, wherein the kind determining region and the element analyzing region are different regions of the optical sensor; a kind determining circuit, configured to determine an object kind of the object according to the first optical data; and an element analyzing circuit, configured to analyze element of the object according to the second optical data.

公开(公告)号：US11582555B2

公开(公告)日：2023-02-14

申请号：US17490532

申请日：2021-09-30

申请人： PixArt Imaging Inc.

发明人： Ming Shun Manson Fei ,  Yi-Hsien Ko

IPC分类号： H04R3/12 ,  H04R27/00 ,  H04R29/00 ,  H04R1/40 ,  G06F3/16 ,  H04R3/00

摘要： There is provided a smart audio system including multiple audio devices and a central server. The central server confirms a model of every audio device and a position thereof in an operation area in a scan mode. The central server confirms a user position or a user state to accordingly control output power of a speaker of each of the multiple audio devices in an operation mode.