公开(公告)号：US20240077955A1

公开(公告)日：2024-03-07

申请号：US18496933

申请日：2023-10-30

Applicant: PixArt Imaging Inc.

Inventor： Tong Sen Liew

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

CPC classification number: G06F3/0304 ,  G06F3/03543 ,  G06F3/038

Abstract: An optical sensor, comprising: a plurality of pins, wherein the optical sensor is configured to sense optical data and configured to compute motions according to the optical data; wherein the optical sensor outputs the motions to a control circuit via a complex pin among the pins in a first mode; wherein the optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode

公开(公告)号：US11922666B2

公开(公告)日：2024-03-05

申请号：US17228731

申请日：2021-04-13

Applicant: PixArt Imaging Inc.

Inventor： Keen-Hun Leong ,  Kheng Jin Ooi ,  Yueh Mei Kim

IPC: G06V10/00 ,  G06V10/145 ,  G06V10/50 ,  G06V10/75

CPC classification number: G06V10/145 ,  G06V10/507 ,  G06V10/751

Abstract: An object detection system and method includes: an optical image sensor arranged to perform the following steps: capturing a calibration image during a calibration stage, dividing the calibration image into a plurality of quadrants, and calculating a parameter for each of the quadrants; capturing a plurality of raw images during a detection stage, dividing each image of the raw images into a plurality of quadrants, and calculating a parameter for each of the quadrants; comparing the respective parameters of each quadrant of a raw image with the respective parameters of each quadrant of the calibration image to generate a ratio value for each quadrant; and comparing the ratio value of each quadrant with a predetermined threshold. When each ratio value of specific quadrants of the quadrants is greater than the predetermined threshold, object detection is confirmed.

公开(公告)号：US11921940B1

公开(公告)日：2024-03-05

申请号：US18121011

申请日：2023-03-14

Applicant: PixArt Imaging Inc.

Inventor： Tzu-Yu Chen

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

CPC classification number: G06F3/0383 ,  G06F3/0304 ,  G06F3/03543

Abstract: A method of an optical navigation device having a plurality of different tracking modes includes: using an image sensor to sense and generate a plurality of image frames; and, controlling and changing a tracking mode of the optical navigation device from a first tracking mode into a second tracking mode in response to an event that the optical navigation device changes from a first surface operation condition into a second surface operation condition.

公开(公告)号：US20240054874A1

公开(公告)日：2024-02-15

申请号：US17883625

申请日：2022-08-09

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai ,  Yen-Chang Chu ,  Chih-Ming Sun

IPC: G08B17/107

CPC classification number: G08B17/107

Abstract: A smoke detector includes a substrate, an optical detection module, a base and a top cover. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The base is disposed on the substrate and around the optical detection module. The base has a second block structure. The top cover is connected to the base. A lateral wall of the top cover is partly overlapped with the second block structure to form a guiding channel. The optical detection module analyzes variation of scattering parameters resulted from gaseous matter entering the top cover through the guiding channel for determining concentration of the gaseous matter.

公开(公告)号：US20240044700A1

公开(公告)日：2024-02-08

申请号：US18486176

申请日：2023-10-13

Applicant: PixArt Imaging Inc.

Inventor： CHIH-MING SUN ,  PO-WEI YU

IPC: G01J1/04 ,  H05K1/18

CPC classification number: G01J1/0422 ,  G01J1/0411 ,  H05K1/181 ,  H05K2201/10121 ,  H05K2201/10151

Abstract: An optical sensor assembly is provided. The optical sensor assembly includes a circuit board, an optical sensor positioned on the circuit board, and a front cover attached to the circuit board and covering the optical sensor. The front cover includes an optical element configured to guide or condense an incident light of a predetermined wavelength onto the optical sensor. The front cover is made of polypropylene or polyethylene. The predetermined wavelength is in a range from 8 micrometers to 12 micrometers.

公开(公告)号：US20240042615A1

公开(公告)日：2024-02-08

申请号：US18382049

申请日：2023-10-19

Applicant: PixArt Imaging Inc.

Inventor： Guo-Zhen Wang

IPC: B25J9/16 ,  G05D1/02

CPC classification number: B25J9/1694 ,  G05D1/0253 ,  G05B2219/45098 ,  G05D2201/0203

Abstract: An air ejection device, configured to eject air; a distance detecting circuit, configured to detect distances between an electronic device comprising the object determining system and at least one location of an object when the air ejection device ejects air to the object; and a determining circuit, configured to determine whether the object is a rigidity type object or a soft type object according to the variations.

公开(公告)号：US11893753B2

公开(公告)日：2024-02-06

申请号：US16937612

申请日：2020-07-24

Applicant: PixArt Imaging Inc.

Inventor： Kevin Len-Li Lim ,  Joon Chok Lee ,  Zi Hao Tan ,  Ching Geak Chan ,  Keen-Hun Leong

IPC: G06T7/20 ,  H04N7/18 ,  G06T7/254 ,  G06T7/246

CPC classification number: G06T7/254 ,  G06T7/248 ,  H04N7/18

Abstract: A security camera with a motion detection function, which comprises: an image sensor, configured to capture original images; a variation level computation circuit, configured to compute image variation levels of the original images; a long term computation circuit, configured to calculate a first average level for the image variation levels corresponding to M of the original images; a short term computation circuit, configured to calculate a second average level for the image variation levels corresponding to N of the original images, wherein M>N; and a motion determining circuit, configured to determine whether a motion of an object appears in a detection range of the image sensor according to a relation between the first average level and the second average level. By such security camera, the interference caused by noise or small object can be avoided. Accordingly, the motion detection of the security camera can be more accurate.

公开(公告)号：US20240038353A1

公开(公告)日：2024-02-01

申请号：US18484454

申请日：2023-10-11

Applicant: PixArt Imaging Inc.

Inventor： SUNG-HAN WU ,  YI-HSIEN KO

IPC: G16H20/10 ,  G16Y40/10 ,  G16Y20/40 ,  G16Y10/60 ,  G06F16/955 ,  G16Y10/80 ,  G16Y20/10

CPC classification number: G16H20/10 ,  G16Y40/10 ,  G16Y20/40 ,  G16Y10/60 ,  G06F16/9554 ,  G16Y10/80 ,  G16Y20/10

Abstract: There is provided a smart control system including a host, at least one sensor and an informing device. The host identifies the activity of a specific member according to the detection result of the at least one sensor, and informs the specific member to take medicine on time or avoid eating specific ingredients using the informing device.

公开(公告)号：US20240036209A1

公开(公告)日：2024-02-01

申请号：US17878057

申请日：2022-08-01

Applicant: PIXART IMAGING INC.

Inventor： Tso-Sheng TSAI ,  Yueh-Lin CHUNG

IPC: G01S17/894 ,  G01S7/4865 ,  G01S7/481

CPC classification number: G01S17/894 ,  G01S7/4866 ,  G01S7/4816

Abstract: There is provided an optical sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal by receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving reflected light from an inner surface of a package illuminated by the light source. The processor generates a random code according to the second output signal to modulate the light source, identifies whether to change an emission pattern of the light source according to a distance calculated according to the first output signal, and changes exposure intervals of the first pixel and the second pixel.

公开(公告)号：US20240035900A1

公开(公告)日：2024-02-01

申请号：US17875437

申请日：2022-07-28

Applicant: PixArt Imaging Inc.

Inventor： Yi-Hsuan Wu

IPC: G01K7/24 ,  G01K7/42

CPC classification number: G01K7/24 ,  G01K7/42

Abstract: An electronic device for estimating a temperature value of a thermistor includes a first signal port, an analog-to-digital converter, and a processing circuit. When the thermistor is coupled to the first signal port of the electronic device, the processing circuit is arranged to operate in a first switching condition to detect and generate a first voltage difference to the analog-to-digital converter, to operate in a second switching condition to detect and generate a second voltage difference to the analog-to-digital converter; and, the analog-to-digital converter is arranged to determine a resistance value of the thermistor based on the first voltage difference compared to the second voltage difference and to generate the estimated temperature value according to the determined resistance value.