Patents Assigned to Pixart Imaging Incorporation
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Patent number: 10982996Abstract: A proximity sensing device includes: a light source, a sensing unit, a light guide unit, and a window. The light source emits light, which is guided by the light guide unit to the window. The emitted light reflected by an object is received by the same window. The light guide unit includes a partial-transmissive-partial-reflective (PTPR) optical element, whereby the light emitted from the light source is reflected by the PTPR optical element, while the light reflected by the object passes through the PTPR optical element. There is only one window required.Type: GrantFiled: January 17, 2020Date of Patent: April 20, 2021Assignee: PIXART IMAGING INCORPORATIONInventors: Hui-Hsuan Chen, Nien-Tse Chen
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Patent number: 10969472Abstract: A proximity sensor includes: a transmitter unit for transmitting a light signal; a receiver unit for receiving the light signal reflected by an object to determine a proximity status of the object; and a housing defining a first enclosed accommodation space for accommodating the receiver unit, wherein the portion of the housing which defines the first enclosed accommodation space has a sealed light passage made of a light-transmissible material such that the receiver unit is capable of receiving the light signal reflected by the object through the light passage. The housing can further include a second enclosed accommodation space for accommodating the transmitter unit.Type: GrantFiled: March 25, 2020Date of Patent: April 6, 2021Assignee: PIXART IMAGING INCORPORATIONInventor: Nientse Chen
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Patent number: 10859442Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.Type: GrantFiled: July 4, 2019Date of Patent: December 8, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: Ming-Han Tsai, Shin-Lin Wang
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Patent number: 10852192Abstract: The present invention discloses a wearable device with combined sensing capabilities, which includes a wearable assembly and at least one multi-function sensor module. The wearable assembly is suitable to be worn on a part of a user's body. The wearable assembly includes at least one light-transmissible window. The multi-function sensor module is located inside the wearable assembly, for performing an image sensing function and an infrared temperature sensing function. The multi-function sensor module includes an image sensor module for sensing a physical or a biological feature of an object through the light-transmissible window by way of image sensing; and an infrared temperature sensor module for sensing temperature through the light-transmissible window by way of infrared temperature sensing.Type: GrantFiled: November 7, 2018Date of Patent: December 1, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: Chih-Ming Sun, Ming-Han Tsai
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Patent number: 10832042Abstract: The present invention discloses an identification system which includes an image sensor, a storage unit and a comparing unit. The image sensor captures a plurality of images of the motion trajectory generated by a user at different timings. The storage unit has stored motion vector information of a group of users including or not including the user generating the motion trajectory. The comparing unit compares the plurality of images with the motion vector information to identify the user. The present invention also provides an identification method.Type: GrantFiled: June 18, 2019Date of Patent: November 10, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: Ren-Hau Gu, Chih-Yen Wu
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Patent number: 10824241Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.Type: GrantFiled: February 14, 2020Date of Patent: November 3, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao
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Patent number: 10816692Abstract: The present invention provides a package structure of an optical apparatus which includes a substrate, a light emitting device, a light sensing device, and a light barrier member. The light emitting device is disposed on the substrate and electrically connected to the substrate. The light emitting device is for emitting light. The light sensing device is disposed on the substrate and is a chip scale package (CSP) device. The light sensing device is for receiving light reflected by an object. The light barrier member is disposed around a periphery of the light sensing device.Type: GrantFiled: November 13, 2019Date of Patent: October 27, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: En-Feng Hsu, Nien-Tse Chen
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Patent number: 10785436Abstract: An image sensor for capturing an image, includes: an array of pixel circuits, wherein each of the pixel circuits is for sensing a portion of the image, and generate a sample signal and a hold signal according to the portion of the image and a predetermined reset voltage respectively; and a transfer circuit, which is coupled to the array, and is for converting the sample signals and hold signals to corresponding digital sensing signals and corresponding digital reset signals respectively, to generate pixel signals respectively corresponding to the pixel circuits according to the digital sensing signals and the digital reset signals; wherein the transfer circuit converts the sample signal generated by one of the pixel circuits to the corresponding digital sensing signal and converts the hold signal generated by another one of the pixel circuits to the corresponding digital reset signal at least partially within a same period.Type: GrantFiled: September 11, 2019Date of Patent: September 22, 2020Assignee: PIXART IMAGING INCORPORATIONInventor: Wooi-Kip Lim
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Patent number: 10606366Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.Type: GrantFiled: June 22, 2019Date of Patent: March 31, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao
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Patent number: 10578482Abstract: A proximity sensing device includes: a light source, a sensing unit, a light guide unit, and a window. The light source emits light, which is guided by the light guide unit to the window. The emitted light reflected by an object is received by the same window. The light guide unit includes a partial-transmissive-partial-reflective (PTPR) optical element, whereby the light emitted from the light source is reflected by the PTPR optical element, while the light reflected by the object passes through the PTPR optical element. There is only one window required.Type: GrantFiled: March 14, 2017Date of Patent: March 3, 2020Assignee: PIXART IMAGING INCORPORATIONInventors: Hui-Hsuan Chen, Nien-Tse Chen
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Patent number: 10418458Abstract: The present invention discloses a manufacturing method for a semiconductor device. The manufacturing method includes: providing a substrate; forming a semiconductor stacked structure on the substrate; forming at least apart of a stacked cap layer on the semiconductor stacked structure, wherein the part of the stacked cap layer includes a nitride layer; removing a part of the nitride layer; forming the rest part of the stacked cap layer; forming a protection layer on the stacked cap layer, and etching the protection layer to form an opening, wherein the nitride layer is not exposed by the opening; and introducing an etchant material into the opening to etch the substrate. The present invention also provides a semiconductor device made by the method.Type: GrantFiled: March 19, 2019Date of Patent: September 17, 2019Assignee: PIXART IMAGING INCORPORATIONInventors: Chih-Ming Sun, Hsin-Hui Hsu, Ming-Han Tsai
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Patent number: 10386240Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.Type: GrantFiled: November 18, 2018Date of Patent: August 20, 2019Assignee: PIXART IMAGING INCORPORATIONInventors: Ming-Han Tsai, Shin-Lin Wang
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Patent number: 10372224Abstract: An input system includes a first gesture detection unit and a second gesture detection unit. The first gesture detection unit includes a first light emitting device for emitting a first light beam, a first light sensing device for receiving the first light beam reflected by a first motion trajectory generated by a user and outputting a first image signal, and a first processing unit for processing the first image signal and outputting a first command signal. The second gesture detection unit includes a second light emitting device for emitting a second light beam, a second light sensing device for receiving the second light beam reflected by a second motion trajectory generated by the user and outputting a second image signal, and a second processing unit for processing the second image signal and outputting a second command signal.Type: GrantFiled: May 31, 2016Date of Patent: August 6, 2019Assignee: PIXART IMAGING INCORPORATION, R.O.C.Inventors: Yu-Hao Huang, Yi-Fang Lee, Ming-Tsan Kao
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Patent number: 10359868Abstract: The present invention discloses a method and apparatus for controlling an object movement on a screen. The method senses a first change in a position of a pointing device in a coordinate system to obtain a first displacement, and controls the object movement by a first displacement output ratio according to the first displacement. The method senses a second change in a position of the pointing device in a coordinate system to obtain a second displacement, and controls the object movement by a second displacement output ratio when a difference between a direction of the first displacement and a direction of the second displacement exceeds a first angle threshold, wherein the second displacement output ratio is lower than the first displacement output ratio.Type: GrantFiled: July 5, 2017Date of Patent: July 23, 2019Assignee: PIXART IMAGING INCORPORATIONInventors: Chia-Cheun Liang, Yi-Hsien Ko
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Patent number: 10358339Abstract: The invention provides a micro-electro-mechanical device which is manufactured by a CMOS manufacturing process. The micro-electro-mechanical device includes a stationary unit, a movable unit, and a connecting member. The stationary unit includes a first capacitive sensing region and a fixed structure region. The movable unit includes a second capacitive sensing region and a proof mass, wherein the first capacitive sensing region and the second capacitive sensing region form a capacitor, and the proof mass region consists of a single material. The connecting member is for connecting the movable unit in a way to allow a relative movement of the movable unit with respect to the stationary unit.Type: GrantFiled: March 6, 2018Date of Patent: July 23, 2019Assignee: PIXART IMAGING INCORPORATIONInventors: Ming-Han Tsai, Yu-Chia Liu, Wei-Leun Fang
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Patent number: 10283612Abstract: The present invention discloses a manufacturing method for a semiconductor device. The manufacturing method includes: providing a substrate; forming a semiconductor stacked structure on the substrate; forming at least apart of a stacked cap layer on the semiconductor stacked structure, wherein the part of the stacked cap layer includes a nitride layer; removing a part of the nitride layer; forming the rest part of the stacked cap layer; forming a protection layer on the stacked cap layer, and etching the protection layer to form an opening, wherein the nitride layer is not exposed by the opening; and introducing an etchant material into the opening to etch the substrate. The present invention also provides a semiconductor device made by the method.Type: GrantFiled: March 3, 2018Date of Patent: May 7, 2019Assignee: PIXART IMAGING INCORPORATIONInventors: Chih-Ming Sun, Hsin-Hui Hsu, Ming-Han Tsai
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Patent number: 10222457Abstract: A proximity sensor includes a transmitter unit, a receiver unit, and a housing. The transmitter unit transmits a light signal. The receiver unit receives the light signal reflected by an object to determine a proximity status of the object. The housing defines a first enclosed accommodation space for accommodating the receiver unit, wherein the portion of the housing defining the first enclosed accommodation space has a sealed light passage made of a light-transmissible material such that the receiver unit is capable of receiving the light signal reflected by the object through the light passage. The housing can further include a second enclosed accommodation space for accommodating the transmitter unit.Type: GrantFiled: August 2, 2016Date of Patent: March 5, 2019Assignee: PIXART IMAGING INCORPORATIONInventor: Nientse Chen
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Patent number: 10216327Abstract: A noise-cancelled capacitive touch display apparatus includes a display panel and a capacitive touch sensor on or above the display panel. The capacitive touch sensor includes plural sensing lines, plural driving lines, plural first signal lines, plural second signal lines and a noise cancellation line. The sensing lines are parallel with each other and extend along a first direction. The driving lines are parallel with each other and extend along a second direction, wherein the second direction intersects the first direction. Each first signal line is located outside of an outermost driving line. Each second signal line is located outside of an outermost sensing line. The noise cancellation line is a cut-off part of a corresponding first signal line or a corresponding second signal line. The noise cancellation line receives the noise generated from the display panel.Type: GrantFiled: February 27, 2015Date of Patent: February 26, 2019Assignee: PIXART IMAGING INCORPORATIONInventor: Kuan-Yi Yang
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Patent number: 10168219Abstract: The present invention discloses a wearable device with combined sensing capabilities, which includes a wearable assembly and at least one multi-function sensor module. The wearable assembly is suitable to be worn on a part of a user's body. The wearable assembly includes at least one light-transmissible window. The multi-function sensor module is located inside the wearable assembly, for performing an image sensing function and an infrared temperature sensing function. The multi-function sensor module includes an image sensor module for sensing a physical or a biological feature of an object through the light-transmissible window by way of image sensing; and an infrared temperature sensor module for sensing temperature through the light-transmissible window by way of infrared temperature sensing.Type: GrantFiled: May 30, 2015Date of Patent: January 1, 2019Assignee: PIXART IMAGING INCORPORATIONInventors: Chih-Ming Sun, Ming-Han Tsai
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Patent number: 10161802Abstract: The present invention discloses a thermal pile sensing structure integrated with one or more capacitors, which includes: a substrate, an infrared sensing unit and a partition structure. The infrared sensing unit includes a first and a second sensing structure. A hot junction is formed between the first and the second sensing structures at a location where the first and the second sensing structures are close to each other. A cold junction is formed between the partition structure and the first sensing structure at a location where these two structures are close to each other. Another cold junction is formed between the partition structure and the second sensing structure at a location where these two structures are close to each other. A temperature difference between the hot junction and the cold junction generates a voltage difference signal. Apart of the partition structure forms at least one capacitor.Type: GrantFiled: March 10, 2018Date of Patent: December 25, 2018Assignee: PIXART IMAGING INCORPORATIONInventors: Ming-Han Tsai, Shin-Lin Wang