Patents Assigned to Pixart Imaging, Inc.
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Publication number: 20240000380Abstract: A wearable device includes a case and a detection module. The case includes an inner casing and an outer casing. The inner casing includes a main body and a lateral wall. The main body is an annular structure. The lateral wall is disposed on a lateral side of the main body. The main body has a first installation area, a second installation area and a third installation area. The outer casing is disposed around the inner casing and abuts against the lateral wall, and the outer casing has a first opening. The detection module is disposed inside the case. The detection module includes an energy storage unit, an information transmission unit and an optical identification assembly. The energy storage unit is located on the first installation area. The information transmission unit is located on the second installation area. The optical identification assembly is located on the third installation area.Type: ApplicationFiled: March 7, 2023Publication date: January 4, 2024Applicant: PixArt Imaging Inc.Inventors: Ming Shun Manson Fei, CONG-JUN XIA, GUI-PING SU, HUA ZHANG, Yen-Min Chang, Chi-Yu Wu
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Patent number: 11863885Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes two pixel arrays each having multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by a time ratio of the line time difference and the frame period. The TDI sensor doubles a number of times of integrating pixel data corresponding to the same position of a scene by arranging two separately operated pixel arrays.Type: GrantFiled: April 1, 2022Date of Patent: January 2, 2024Assignee: PIXART IMAGING INC.Inventors: Ren-Chieh Liu, Chao-Chi Lee
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Patent number: 11863195Abstract: An ADC device includes a DAC circuit, a comparator circuit, a SAR decision circuit, an oscillator circuit having a delay unit, and a processing circuit. The oscillator circuit is used for generating the clock signal according to a reset signal and a delay of the delay unit. The processing circuit is used for sequentially generating multiple bit conversion signals associated with multiple different bits of the decision signal, for generating at least one guard signal which follows the multiple bit conversion signals, and then for comparing the at least one guard signal with the reset signal to adjust the delay generated by the delay unit of the oscillator circuit.Type: GrantFiled: January 13, 2022Date of Patent: January 2, 2024Assignee: PixArt Imaging Inc.Inventor: Shiue-Shin Liu
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Patent number: 11863174Abstract: There is provided a detection chip including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit provides a first charging current within a first charging interval, and provides a second charging current, smaller than the first charging current, within a second charging interval. The discharging circuit provides a first discharging current within a first discharging interval, and provides a second discharging current, smaller than the first discharging current, within a second discharging interval. The counter counts the second charging interval and the second discharging interval. The processor identifies a touch event according to the second charging interval and the second discharging interval.Type: GrantFiled: February 20, 2023Date of Patent: January 2, 2024Assignee: PixArt Imaging Inc.Inventor: Sung-Han Wu
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Patent number: 11860006Abstract: 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: GrantFiled: October 6, 2022Date of Patent: January 2, 2024Assignee: PixArt Imaging Inc.Inventor: Ching-Lin Chung
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Patent number: 11863209Abstract: A method of integrated circuit includes: providing a non-volatile memory circuit for securely and permanently recording and protecting key data content having Y bits; providing a programmable memory circuit for storing user configuration data content having X bits greater than Y bits; converting the user configuration data content having X bits into user configuration key content having Y bits; comparing the user configuration key content having Y bits with the key data content having Y bits; selecting fallback configuration data content having X bits as output data when the user configuration key content does not match the key data content; selecting the user configuration data content having X bits as the output data when the user configuration key content matches the key data content; and receiving the output data of the decision circuit and performing at least one corresponding capability operation according to the output data.Type: GrantFiled: August 18, 2021Date of Patent: January 2, 2024Assignee: PixArt Imaging Inc.Inventors: Ee Wen Chun, Shang Chan Kong
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Patent number: 11863087Abstract: A stacked structure is composed of a plurality of layers, and includes: a substrate; a plurality of conductive patterns printed on the substrate; and at least one layer of elastic nodules formed between two layers of the plurality of layers, the layer of elastic nodules including a sensing area being used for at least one of actuation or sensing. The stacked structure is formed by folding the substrate multiple times. The stacked structure further includes: an adhesive layer printed on but not completely covering the conductive patterns and substrate, and forming at least one air reservoir for holding air displaced when the sensing area is compressed. The stacked structure does not include electrically conducting through holes or electrically connecting structures.Type: GrantFiled: January 12, 2022Date of Patent: January 2, 2024Assignee: PixArt Imaging Inc.Inventors: Ville Topias Makinen, Roberto Tejera-Garcia, Daniil Zykov
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Patent number: 11852519Abstract: An optical detection device of detecting a target container includes a linear light source, an optical sensor array and a processor. The linear light source is adapted to project a long strip illumination beam onto the target container. The optical sensor array includes a plurality of sensing units arranged as a long strip adapted to receive a long strip detection beam reflected from the target container. The processor is electrically connected to the optical sensor array. The processor is adapted to analyze intensity distribution of the plurality of sensing units to acquire a relative distance between the optical sensor array and a rim of the target container.Type: GrantFiled: October 15, 2020Date of Patent: December 26, 2023Assignee: PixArt Imaging Inc.Inventors: Feng-Chi Liu, Chi-Chieh Liao, Guo-Zhen Wang, Hung-Ching Lai
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Patent number: 11854215Abstract: An image recognition system includes a processing module, a sensor module, and a database. The sensor module is electrically connected to the processing module. The database is electrically connected to the processing module. The sensor module configured for capturing at least one image. The at least one image is stored in the database. The processing captures a contour of an object from the at least one image and separates the contour of the object into a plurality of portions. A plurality of arrangements is defined between the portions of the contour of the object. The processing module determines a state of the contour of the object based on the arrangements.Type: GrantFiled: July 1, 2022Date of Patent: December 26, 2023Assignee: PIXART IMAGING INC.Inventors: Guo-Zhen Wang, Han-Chang Lin
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Publication number: 20230408299Abstract: 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: ApplicationFiled: June 21, 2022Publication date: December 21, 2023Applicant: PixArt Imaging Inc.Inventor: Ching-Shun Chen
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Patent number: 11847857Abstract: A vehicle device setting method including: capturing, by an image sensing unit, a first image frame; recognizing a user ID according to the first image frame; showing ID information of the recognized user ID on a screen or by a speaker; capturing a second image frame; generating a confirm signal when a first user expression is recognized by calculating an expression feature in the second image frame and comparing the recognized expression feature with stored expression data associated with a predetermined user expression to confirm whether the recognized user ID is correct or not according to the second image frame captured after the ID information is shown; controlling an electronic device according to the confirm signal; and entering a data update mode instructed by the user and updating setting information of the electronic device by current electronic device setting according to a saving signal generated by confirming a second user expression in a third image frame captured after the user ID is confirmedType: GrantFiled: November 24, 2021Date of Patent: December 19, 2023Assignee: PIXART IMAGING INC.Inventors: Liang-Chi Chiu, Yu-Han Chen, Ming-Tsan Kao
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Patent number: 11849236Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.Type: GrantFiled: June 27, 2022Date of Patent: December 19, 2023Assignees: PIXART IMAGING INC., TAIWAN SPACE AGENCYInventors: Ren-Chieh Liu, Chao-Chi Lee, Yi-Yuan Chen, En-Feng Hsu
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Patent number: 11849237Abstract: There is provided a pixel circuit including an optically sensitive material (OSM) layer and a readout circuit. The OSM layer is arranged upon the readout circuit, and used to sense light energy to generate signal charges to be integrated in a floating diffusion. The readout circuit includes a source follower for amplifying a voltage on the floating diffusion within a readout interval, and the voltage on the floating diffusion is not changed by an external voltage pulse within the readout interval.Type: GrantFiled: July 26, 2022Date of Patent: December 19, 2023Assignee: PIXART IMAGING INC.Inventor: Kazuya Yonemoto
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Patent number: 11841994Abstract: An optical navigation system comprising: a control circuit; and 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. The optical sensor outputs the motions to the control circuit via a complex pin among the pins in a first mode. The optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode. The present invention also discloses an optical navigation system which shares a pin for receiving different types of data.Type: GrantFiled: June 2, 2022Date of Patent: December 12, 2023Assignee: PixArt Imaging Inc.Inventor: Tong Sen Liew
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Patent number: 11842536Abstract: An electronic apparatus, 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 component, configured to determine an object kind of the object according to the first optical data; and an element analyzing component, configured to analyze element of the object according to the second optical data.Type: GrantFiled: January 16, 2023Date of Patent: December 12, 2023Assignee: PixArt Imaging Inc.Inventor: Guo-Zhen Wang
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Publication number: 20230393669Abstract: An optical navigation system comprising: a control circuit; and 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. The optical sensor outputs the motions to the control circuit via a complex pin among the pins in a first mode. The optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode. The present invention also discloses an optical navigation system which shares a pin for receiving different types of data.Type: ApplicationFiled: June 2, 2022Publication date: December 7, 2023Applicant: PixArt Imaging Inc.Inventor: Tong Sen Liew
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Patent number: 11838659Abstract: An image sensing system comprising: a storage device, comprising at least two first registers, wherein a number of the first registers following a first direction of the storage device is larger than a number of the first registers following a second direction of the storage device; a filter, comprising at least two second registers; and an SIPO (serial in parallel out) circuit, coupled between the storage device and the filter.Type: GrantFiled: November 16, 2021Date of Patent: December 5, 2023Assignee: PixArt Imaging Inc.Inventor: Wai Lian Teo
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Publication number: 20230386050Abstract: An optical sensor system for determining trajectory of a wheel includes: a wheel mounted in a wheel arch having an outer surface covered with evenly-spaced wheel treads; an optical sensor mounted in the wheel arch but not touching the wheel, for performing a plurality of counts corresponding to respectively capturing a plurality of images of the wheel according to the wheel treads, and comparing the captured images with a reference image to determine a 2D displacement. The optical sensor further performs a calculation to convert the measured 2D displacement of the wheel from its original position into a distance the wheel travels along a path in order to determine the wheel trajectory.Type: ApplicationFiled: July 17, 2023Publication date: November 30, 2023Applicant: PixArt Imaging Inc.Inventors: KEEN-HUN LEONG, BOON-HOW KOK, DENNIS DOMINIC DONALD
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Patent number: 11829180Abstract: A pressure detection device of detecting a forced state of a deformable object includes a body, an image sensor and a processor. The body is a deformable hollow structure. The body has an inner surface and an outer surface, and an identifiable vision feature is disposed on the inner surface. The image sensor is disposed inside the body and faces the inner surface of the body, and is adapted to capture a frame containing the identifiable vision feature on the inner surface. The processor is electrically connected with the image sensor, and adapted to analyze position variation of the identifiable vision feature within the captured frame for identifying a motion type of a gesture applied to the outer surface of the body.Type: GrantFiled: August 24, 2021Date of Patent: November 28, 2023Assignee: PixArt Imaging Inc.Inventors: Wei-Chung Wang, Hsin-Chia Chen, Hui-Hsuan Chen, Chao-Chien Huang, Chu-Hung Nien
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Patent number: 11826917Abstract: One object determining system comprising: 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 a type of the object according to variations of the distances.Type: GrantFiled: December 6, 2022Date of Patent: November 28, 2023Assignee: PixArt Imaging Inc.Inventor: Guo-Zhen Wang