Patents Assigned to Pixart Imaging, Inc.
  • Patent number: 12379796
    Abstract: An image sensing system control method, comprising: (a) defining a first reporting frame sensed at a first reporting frame time, and a second reporting frame sensed at a second reporting; (b) acquiring a first motion of the image sensing system for a first latency time interval between a first polling time and the first reporting frame time; (c) computing a second motion of the image sensing system for a first calibration time interval by the image sensor, wherein the first calibration time interval comprises a first frame time interval between the first, the second reporting frame times, and comprises a first expected latency time interval after the second reporting frame time; and (d) outputting a first output motion to the control circuit by the image sensor, thereby a difference between the first output motion and a physical movement of the image sensing system is smaller than a predetermined value.
    Type: Grant
    Filed: May 9, 2024
    Date of Patent: August 5, 2025
    Assignee: PixArt Imaging Inc.
    Inventor: Zi Hao Tan
  • Publication number: 20250244942
    Abstract: A wireless connection method, applied to a wireless communication system comprising a first host device, comprising: (a) detecting if a first dongle is plugged into a first device by the first dongle; (b) connecting the first dongle with the first host device, to establish a first wireless connection between the first device and the first host device; and (c) automatically receiving connection information of a second wireless connection from the first host device via the first wireless connection and automatically providing the connection information to the first device, by the first dongle. By using the disclosed methods, screen mirroring steps can be simplified and only dongles which have simple architectures are needed. Accordingly, the hardware cost can also be reduced.
    Type: Application
    Filed: January 25, 2024
    Publication date: July 31, 2025
    Applicant: PixArt Imaging Inc.
    Inventor: Ping-Shun Zeung
  • Publication number: 20250244175
    Abstract: An optical sensor circuit of an optical sensor device to be disposed on and to be heated by a heater device is provided. The optical sensor device further includes a printed circuit, a first heat shielding portion, and a heat conduction device. The optical sensor circuit is disposed on a top surface of the printed circuit. The first heat shielding portion has a top surface contacting a bottom surface of the printed circuit. The heat conduction device has a first portion and a second portion, and the first portion of the heat conduction device is disposed between the first heat shielding portion and a top surface of the heater device. The second portion of the heat conduction device surrounds the optical sensor circuit.
    Type: Application
    Filed: January 29, 2024
    Publication date: July 31, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Ming-Han Tsai, Po-Wei Yu
  • Publication number: 20250240535
    Abstract: An image sensing device, comprising: a pixel array, configured to generate analog image sensing signals; an ADC, configured to transform the analog image sensing signals to digital optical image signals; and an offset control circuit, configured to adjust an ADC offset of the ADC corresponding to an image quality and an average pixel value of at least one image which is generated from previous analog image sensing signals sensed by the pixel array.
    Type: Application
    Filed: January 23, 2024
    Publication date: July 24, 2025
    Applicant: PixArt Imaging Inc.
    Inventor: Chun Heap Leow
  • Publication number: 20250238089
    Abstract: An electronic system control method, applied to an electronic system comprising a host device and a peripheral device, comprising: generating portrait location information and land scape location information, by the peripheral device; judging a host operation mode of the host device; and selectively using the portrait location information or the land scape location information to compute a location of the peripheral device or of an object on the peripheral device, corresponding to the host operation mode. By this way, the peripheral operation mode may be automatically set corresponding to the host operation mode. In one example, the peripheral device have at least one control button which has different functions in different modes.
    Type: Application
    Filed: January 24, 2024
    Publication date: July 24, 2025
    Applicant: PixArt Imaging Inc.
    Inventor: Jr-Yi Li
  • Publication number: 20250231050
    Abstract: A code wheel comprising: a signal region, configured to receive light and generate at least one code signal according to the light; and an index region, configured to generate an index signal according to the light, wherein the index signal represents a complete rotation of the code wheel. The index region comprises a first region with a first region and comprises a second region with a second region larger than the first region. The first region is closer to the signal region than the second region. The code wheel may be applied to an encoding system with a processing circuit, which is configured to determine a rotation of the code wheel according to the code signals and the index signal.
    Type: Application
    Filed: January 11, 2024
    Publication date: July 17, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Tze Wei Priscilla Goh, Kuan Choong Shim, Meng Yee Lim, Gim Eng Chew
  • Patent number: 12345552
    Abstract: A flexible capacitive touch sensing device comprising a first, a second sensing region and a capacitance detection circuit. Each of the first, second sensing region comprises: flexible material; and electrodes, in or on the flexible material. Capacitance sensed by the capacitance detection circuit is used for detecting if an object causes capacitance variation to the first sensing region and the second sensing region. The first sensing region comprises a first side region with a first side which is adjacent to a second side of the second sensing region Shapes of the electrodes are changeable after provided on the flexible material. The electrodes are overlapped in normal directions of the first side region and the second side region. An angle which is not 0 degree exists between the electrodes which are overlapped. Such flexible capacitive touch sensing device can be applied to generate a HOD device with different sizes.
    Type: Grant
    Filed: May 6, 2024
    Date of Patent: July 1, 2025
    Assignee: PixArt Imaging Inc.
    Inventor: Ching-Shun Chen
  • Patent number: 12339178
    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: Grant
    Filed: February 24, 2022
    Date of Patent: June 24, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: Chih-Ming Sun, Yen-Po Chen
  • Patent number: 12339176
    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.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: June 24, 2025
    Assignee: PixArt Imaging Inc.
    Inventor: Yi-Hsuan Wu
  • Publication number: 20250200709
    Abstract: An image generation device, for generating an output image with first absolute depth information, comprising: at least one image sensor, configured to generate at least one first image with a first resolution and at least one second image with a second resolution, wherein the first image does not have depth information and the second image has second absolute depth information, wherein the first resolution is higher than the second resolution; and a processing circuit, configured to use a depth estimation engine to generate at least one third image with a third resolution according to the first image, wherein the third image has relative depth information; wherein the processing circuit further uses a fusion engine to fuse the second image and the third image to generate the output image.
    Type: Application
    Filed: December 13, 2023
    Publication date: June 19, 2025
    Applicant: PixArt Imaging Inc.
    Inventor: Guo-Zhen Wang
  • Patent number: 12329521
    Abstract: A ring of detecting physiological information of a user includes a case and a detection assembly. The case has an inner space including an annular region and a sunken region. The sunken region has a first lateral side, a lower bottom and a second lateral side. The first lateral side and the second lateral side are located on two sides of the sunken region and respectively connected with two sides of the annular region. The annular region covers a back of the user's finger. The lower bottom of the sunken region contacts against a finger pulp of the user's finger. The first lateral side and the second lateral side respectively contact against lateral sides of the finger. The detection assembly is disposed inside the case and includes a first detection module and a second detection module respectively located on the first lateral side and the second lateral side.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: June 17, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: Sen-Huang Huang, Ming Shun Manson Fei, Cong-Jun Xia
  • Patent number: 12326537
    Abstract: An optical tracking device is used to track a target object. An outer surface of the target object is divided into a first region and a second region adjacent to each other, and a marker is disposed on the first region. The optical tracking device includes an optical sensor and an operation processor. The optical sensor has auto exposure function and is adapted to acquire a detection image containing at least one of the first region and the second region. The operation processor is electrically connected to the optical sensor and adapted to analyze variation of an exposure parameter of the auto exposure function for determining whether the first region is appeared in the detection image, so as to acquire an operation datum of the target object.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: June 10, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: Ching Geak Chan, Chung-Ting Yang, Feng-Chi Liu
  • Patent number: 12322119
    Abstract: A movement detection method, applied to a navigation input device with a navigation pattern comprising a center pattern and a radial pattern. The movement detection method comprises: (a) capturing a sensing image comprising a center pattern image and at least portion of a radial pattern image by an image sensor, wherein the center pattern image corresponds to the center pattern and the radial pattern image corresponding to the radial pattern; (b) computing a translation of the navigation input device according to shift of the center pattern image; and (c) computing a rotation angle of the navigation input device according to a first pattern relation between the center pattern image and a first portion of the radial pattern image. The translation and the rotation angle can be precisely and sensitively detected even if the joystick device is miniaturized, since the translation and the rotation angle are computed according to the navigation pattern.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: June 3, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: Yi-Chung Chen, Chao-Chien Huang, Chung-Yuo Wu
  • Patent number: 12313457
    Abstract: An optical sensor, comprising: a sensor array, comprising a bright region with at least one bright pixel and comprising a dark region with at least one dark pixel, wherein the dark pixel generates a sensing signal that is non-relevant to light emitted to the sensor array; a power noise detection circuit, configured to compute a power noise level of the sensing signal from the dark pixel; and a power noise compensation circuit, configured to control the optical sensor to perform a power noise compensation operation according to the power noise level. A related power noise reduction method is also disclosed. Based on the present invention, the power noise of the optical sensor can be reduced without increasing the power consumption, and the power noise for a low switch frequency can also be improved.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: May 27, 2025
    Assignee: PixArt Imaging Inc.
    Inventor: En-Feng Hsu
  • Publication number: 20250143644
    Abstract: A smart ring with a physiological feature detecting method is applied to a target object. The smart ring includes a pressure sensor and an operation processor. The pressure sensor is adapted to detect a pressure value of the target object applied for the smart ring. The operation processor is electrically connected with the pressure sensor, and adapted to compare the pressure value with a preset condition and determine a behavior of the target object according to a comparison result of the pressure value and the preset condition for generating a related operation command.
    Type: Application
    Filed: January 10, 2025
    Publication date: May 8, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Yung-Chang Lin, Jian-Cheng Liao, Chun-Chih Chen
  • Publication number: 20250148236
    Abstract: An optical decoding device, comprising: an image sensor, configured to sense first sensing images and second sensing images; a processing circuit, configured to determine a relative movement between the optical decoding device and an object according to the first sensing images; and a decoding device, configured to decode the second sensing images in a first mode to generate a decoding result and does not decode the second sensing images in a second mode. The decoding device switches between the first mode and the second mode according to the relative movement, thus can save power. A barcode, a color code which can be provided on a curved surface and an invisible code are also disclosed. An electrical cigarette lighter using the optical decoding device to provide heat is also disclosed.
    Type: Application
    Filed: September 4, 2024
    Publication date: May 8, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Shu-Sian Yang, Tsung-Hsueh Lee, Tzu-Yu Chen
  • Patent number: 12293520
    Abstract: A portrait image processing method, applying to a portrait image processing device, comprising: (a) acquiring a BVP (Blood Volume Pulse) signal of a user; (b) acquiring blood flow distribution of a specific portion of a user; (c) capturing an image of a specific portion of the user; and (d) adjusting the image of the specific portion according to the BVP signal and the blood flow distribution. A portrait image processing device, which comprises a camera and a processing circuit, is also disclosed. The processing circuit can acquire BVP signals from an image captured by the camera or from a PPG sensor.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: May 6, 2025
    Assignee: PixArt Imaging Inc.
    Inventor: Yuan-Hsin Liao
  • Patent number: 12293031
    Abstract: An image sensing system control method, applied to an image sensing system comprising an image sensor and a control circuit. The method comprises: (a) defining a first reporting frame sensed at a first reporting frame time and a second reporting frame sensed at a second reporting frame time, wherein the image sensor reports motions computed according to the first reporting frame after the first reporting frame time, and reports motions computed according to the second reporting frame after the second reporting frame time; and (b) adjusting a first reporting time interval between the first reporting frame time and the second reporting frame time, to adjust the second reporting frame time to meet a second target time. The second reporting frame time is after the first reporting frame time.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: May 6, 2025
    Assignee: PixArt Imaging Inc.
    Inventors: Zi Hao Tan, Kevin Len-Li Lim
  • Publication number: 20250141439
    Abstract: A method of a signal transmission device includes: providing at least one delay line circuit having a plurality of first delay units connected in series; providing a control voltage as a supply voltage provided for a first delay unit of the at least one delay line circuit; and adjusting the control voltage to maintain a delay amount of the first delay unit at a specific delay amount when a variation of the delay amount of the first delay unit occurs.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 1, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Yueh-Lin Chung, Tso-Sheng Tsai
  • Publication number: 20250138488
    Abstract: A stemless operation mechanism includes a case, a first moving component, a second moving component and a detection module. The case includes a first accommodating area, a second accommodating area and a partition portion used to provide an airtight isolating function. The first moving component is movably disposed on the first accommodating area and includes a first magnetic unit. The second moving component is movably disposed on the second accommodating area and includes a second magnetic unit located on position corresponding to position of the first magnetic unit. The second magnetic unit is cooperated with the first magnetic unit to generate a magnetic attraction force or a magnetic repulsion force. The detection module is disposed adjacent to the second moving component, and adapted to detect a movement of the second moving component for determining an operation behavior applied for the first moving component.
    Type: Application
    Filed: October 14, 2024
    Publication date: May 1, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Sen-Huang Huang, Ming Shun Manson Fei, Cong-Jun XIA, Gui-Ping SU