Patents Assigned to Pixart Imaging, Inc.
  • Patent number: 11510539
    Abstract: An auto clean machine comprising: a chassis; an internal light source, located inside the chassis, for emitting internal light; an external light source, located outside the chassis, for emitting external light; an optical sensor, configured to sense optical data generated according to the external light or according to the internal light; and a control circuit, configured to analyze optical information of the optical data. If the internal light source is activated, the external light source is de-activated and the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit changes the internal light source to be non-activated and the external light source to be activated.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 29, 2022
    Assignee: PixArt Imaging Inc.
    Inventors: Muan Sian Ng, Wan Piang Lim, Hui-Hsuan Chen
  • Publication number: 20220373329
    Abstract: An auto clean machine, comprising: an optical sensor; a light source, configured to generate a first light pattern; and a processing circuit, configured to determine which light pattern is the first light pattern if the optical sensor senses more than one light pattern.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Applicant: PixArt Imaging Inc.
    Inventor: Guo-Zhen Wang
  • Patent number: 11507097
    Abstract: A control apparatus for an auto clean machine comprising a light source configured to emit light to illuminate at least one light region outside and in front of the auto clean machine. The control apparatus comprises: a first image sensing area, configured to sense a first brightness distribution of the light region, wherein a resolution for a first direction of the first image sensing area is higher than a resolution for a second direction of the first image sensing area; and a processor, configured to control movement of the auto clean machine according the first brightness distribution.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: November 22, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Guo-Zhen Wang
  • Patent number: 11500504
    Abstract: A touch controlling apparatus to be coupled to a touch sensor array is disclosed. The apparatus comprises a memory circuit and a controlling circuit. The memory circuit is used for recording different calibration ratios associated with different process variations. The controlling circuit is coupled to the memory circuit, and is used for calibrating or adjusting sensitivities of a plurality of cells by respectively using the different calibration ratios to calibrate or adjust sensed capacitance changes of the plurality of cells to generate and output resultant capacitance changes of the plurality of cells.
    Type: Grant
    Filed: June 16, 2021
    Date of Patent: November 15, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Sung-Han Wu
  • Patent number: 11499848
    Abstract: An optical detection system includes a marker product and an optical encoding device. The marker product includes a substrate and at least one structural portion. The structural portion has a first surface, a second surface and a dividing axis. The first surface and the second surface are arranged on opposite sides of the dividing axis. A sidelong direction aligning the first surface with the second surface is parallel to a moving direction between the optical encoding device and the marker product. The optical encoding device is disposed adjacent by the marker product. The optical encoding device includes an optical projector and an optical encoder. The optical projector is configured to project the optical detecting signal onto the marker product. The optical encoder is configured to receive an optical reflecting signal from the marker product and encode intensity variation of the optical reflecting signal into digital data.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: November 15, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Ching-Lin Chung
  • Patent number: 11495697
    Abstract: The instant disclosure provides an optical component packaging structure which includes a far-infrared sensor chip, a first metal layer, a packaging housing and a covering member. The far-infrared sensor chip includes a semiconductor substrate and a semiconductor stack structure. The semiconductor substrate has a first surface, a second surface which is opposite to the first surface, and a cavity. The semiconductor stack structure is disposed on the first surface of the semiconductor substrate, and a part of the semiconductor stack structure is located above the cavity. The first metal layer is disposed on the second surface of the semiconductor substrate, the packaging housing is used to encapsulate the far-infrared sensor chip and expose at least a part of the far-infrared sensor chip, and the covering member is disposed above the semiconductor stack structure.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: November 8, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Yi-Chang Chang, Yen-Hsin Chen, Chi-Chih Shen
  • Patent number: 11493336
    Abstract: An optical navigation device comprising: a processing circuit; a first light source, configured to emit first light; a cover; at least one second light source, configured to emit second light toward the cover; and an first optical sensor, configured to sense first optical data generated according to the first light and to sense second optical data generated according to the second light on the cover. The processing circuit determines a dirtiness level of the cover based on the second optical data sensed by the first optical sensor. The optical navigation device can further comprise a second optical sensor. Also, an optical navigation device which can avoid the interference of another optical navigation device is also disclosed.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: November 8, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Guo-Zhen Wang
  • Patent number: 11490021
    Abstract: An image capturing device comprising an image sensor. The image sensor comprises: a first sensing region, having a first sensing threshold; and a second sensing region, having a second sensing threshold lower than the first sensing threshold. At least one object image is determined to be invalid when the object image captured by the first sensing region has brightness formation lower the first sensing threshold. At least one the object image is determined to be invalid when the object image captured by the second sensing region has brightness formation lower the second sensing threshold. The present invention also discloses a distance measuring device using the image sensor.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: November 1, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Guo-Zhen Wang
  • Patent number: 11486893
    Abstract: an optical sensing system comprising: a processing circuit; a first calibration optical sensor, comprising a first sensor edge and a second sensor edge opposite to the first sensor edge; and a second calibration optical sensor, away from the first calibration optical sensor for a first distance, comprising a third sensor edge and a fourth sensor edge opposite to the third sensor edge. The processing circuit determines a target object has moved for a target distance if an object pattern of the target object moves from a first location in the first calibration sensor to a second location in the second calibration sensor, wherein a first sum of a second distance which is between the first location and the first sensor edge and a third distance between the second location and the third sensor edge equals to a reference distance.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: November 1, 2022
    Assignee: PixArt Imaging Inc.
    Inventors: Keen-Hun Leong, Yueh Mei Kim
  • Publication number: 20220342490
    Abstract: 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.
    Type: Application
    Filed: July 12, 2022
    Publication date: October 27, 2022
    Applicant: PixArt Imaging Inc.
    Inventors: Feng-Chi Liu, Ching-Lin Chung
  • Patent number: 11480664
    Abstract: An optical detection device of detecting a distance relative to a target object includes a substrate, an optical sensor and a processor. The optical sensor is disposed on the substrate and adapted to capture an image about the target object. The processor is disposed on the substrate and electrically connected with the optical sensor. The processor is adapted to mark a first region and a second region within the image for acquiring first quantity of the first region and second quantity of the second region, and compare the first quantity with the second quantity for determining whether the distance is varied to a predefined condition.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: October 25, 2022
    Assignee: PixArt Imaging Inc.
    Inventor: Sai Mun Lee
  • Patent number: 11478068
    Abstract: There is provided an electric toothbrush including a toothbrush head, a toothbrush handle and a force sensing array. The force sensing array is arranged on the toothbrush head and/or the toothbrush handle. When the force sensing array is arranged on the toothbrush head, it is able to detect the force uniformity of brush hairs. When the force sensing array is arranged on the toothbrush handle, it is able to control the vibration strength of the brush hairs and detect the pressing force of the brush hairs.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: October 25, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Chih-Ming Sun, Ming Shun Manson Fei, Yi-Hsien Ko
  • Publication number: 20220335236
    Abstract: A barcode, comprising: a code region, comprising at least bright point and a dark point, comprising code information; and a boundary region, formed as a closed shape surrounding the code region. A decoding direction of the code region is not relative to the boundary region. The code information is represented by at least one of: a color sequence, an intensity sequence and a relation between the bright point and the dark point. The present invention also provides a barcode processing system which can process the barcode to generate a control command, and provides a coffee machine using the barcode processing system. The barcode can be easily aligned by a closed boundary region, without using a frame buffer with a large size.
    Type: Application
    Filed: November 3, 2021
    Publication date: October 20, 2022
    Applicant: PixArt Imaging Inc.
    Inventor: Shu-Sian Yang
  • Patent number: 11470264
    Abstract: There is provided an image sensor for exposing a plurality of pixel rows within a frame period using a rolling shutter. The image sensor includes a processor for calculating bright-dark distribution patterns of image frames. The processor further adjusts the frame period to be substantially identical to a predetermined period by changing a total number of exposed line times within the frame period when a difference between the bright-dark distribution patterns of two image frames is larger than a predetermined threshold.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: October 11, 2022
    Assignee: PIXART IMAGING INC.
    Inventor: Wen-Han Yao
  • Patent number: 11465901
    Abstract: A sensor package including a fixed frame, a moveable platform, elastic restoring members and a sensor chip is provided. The moveable platform is moved with respect to the fixed frame, and used to carry the sensor chip. The elastic restoring members are connected between the fixed frame and the moveable platform, and used to restore the moved moveable platform to an original position. The sensor chip is arranged on the elastic restoring members to send detected data via the elastic restoring members.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: October 11, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Chih-Ming Sun, Ming-Han Tsai, Yu-Tao Lee
  • Publication number: 20220321828
    Abstract: A motion detection method applied into an image sensor device includes: providing a plurality of regions of interest (ROIs) on at least one monitoring image; for each region of interest (ROI): detecting whether at least one motion event occurs within the each ROI; and determining a priority level of the each ROI according to at least one feature information of the at least one motion event; and determining an alarm schedule of the ROIs for a user according to a plurality of priority levels of the ROIs.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 6, 2022
    Applicant: PixArt Imaging Inc.
    Inventors: Chih-Huan Wu, Yi-Hsien Ko, Wen-Han Yao
  • Patent number: 11457837
    Abstract: A direction control apparatus with a sensor, a method for determining a driver status using the driving control apparatus, and a system for determining the driver status are provided. The direction control apparatus includes at least a pressure sensor to sense a plurality of pressure values applied to multiple positions of the direction control apparatus. When the pressure values are received by a controller of the apparatus, the driver status can be determined according to a change of pressure values over time, or further a change of the positions where pressure is applied. The system can connect with an autopilot system and an alarm system of a vehicle via the controller. Therefore, the system incorporates an autopilot system and issues an alarm when the driver status is determined to be abnormal.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 4, 2022
    Assignee: PIXART IMAGING INC.
    Inventor: Sung-Han Wu
  • Patent number: 11461207
    Abstract: An electronic device, which can enter a debug mode, comprising: a plurality of buttons, wherein a layout of the buttons correspond to one of a first button layout and a second button layout; a processing circuit, configured to control the electronic device to enter a debug mode when at least two of the buttons are pressed to meet a predetermined button combination. The processing circuit controls the electronic device to perform a first test corresponding to the first button layout or to perform a second test corresponding to the second button layout to detect which one of the first button layout and the second button layout does the electronic device correspond to.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: October 4, 2022
    Assignee: PixArt Imaging Inc.
    Inventors: Chien-Zhi Wang, Jr-Yi Li
  • Publication number: 20220307925
    Abstract: An earphone device includes a housing subassembly, an inner casing subassembly, an audio processor, and a force sensor patch. The inner casing subassembly is disposed in the housing subassembly and integrated with a printed circuit board having specific electrode (s). The audio processor is disposed on the printed circuit board. The force sensor patch is pasted onto specific electrode (s) of the printed circuit board to be coupled to the audio processor through specific electrode(s). The force sensor patch is disposed between a part of the housing subassembly and a part of the inner casing subassembly and arranged to detect a user's pressure applied onto the part of the housing subassembly.
    Type: Application
    Filed: February 24, 2022
    Publication date: September 29, 2022
    Applicant: PixArt Imaging Inc.
    Inventors: Chih-Ming Sun, Yen-Po Chen
  • Publication number: 20220305510
    Abstract: A sprayer includes: a container; a passage including a transparent window, a first opening, a second opening and a resonator, wherein when liquid in the container is passed through the resonator via the first opening, the liquid is emitted as a gas via the second opening; and a removable detection unit disposed outside of the passage. The removable detection unit includes: a light source for illuminating the gas in the passage; an optical sensor disposed to detect a parameter of light reflected by the gas; and a processor coupled to the optical sensor for stopping the resonator from generating the gas when the parameter is below a threshold. The passage further includes a cavity disposed on a bottom surface of the passage in front of the optical sensor, wherein when the gas in the passage contacts the bottom surface, resultant water vapour will enter the cavity.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Applicant: PixArt Imaging Inc.
    Inventors: Chih-Hao Wang, Yang-Ming Chou, Chien-Yi Kao, Shih-Jen Lu, Chih-Ming Sun, Hsin-Yi Lin