Patents by Inventor Yun-Cheng Liu
Yun-Cheng Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250060590Abstract: An illumination module is provided. The illumination module includes a light-emitting unit. The light-emitting unit includes a light-emitting element array and a focusing lens array. The light-emitting element array includes a plurality of light-emitting elements. The light-emitting elements are used for generating a plurality of light beams. The focusing lens array includes a plurality of focusing lenses. Each of the light-emitting elements corresponds to at least one of the focusing lenses.Type: ApplicationFiled: December 26, 2023Publication date: February 20, 2025Inventors: Yun-Cheng LIU, Yi-Sheng LEE
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Publication number: 20250031466Abstract: An optical sensing apparatus including: a substrate including a first material; an absorption region including a second material different from the first material; an amplification region formed in the substrate and configured to collect at least a portion of the photo-carriers from the absorption region and to amplify the portion of the photo-carriers; an interface-dopant region formed in the substrate between the absorption region and the amplification region; a buffer layer formed between the absorption region and the interface-dopant region; one or more field-control regions formed between the absorption region and the interface-dopant region and at least partially surrounding the buffer layer; and a buried-dopant region formed in the substrate and separated from the absorption region, where the buried-dopant region is configured to collect at least a portion of the amplified portion of the photo-carriers from the amplification region.Type: ApplicationFiled: October 2, 2024Publication date: January 23, 2025Inventors: Yen-Cheng Lu, Yu-Hsuan Liu, Jung-Chin Chiang, Yun-Chung Na, Tsung-Ting Wu, Zheng-Shun Liu, Chou-Yun Hsu
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Patent number: 9946913Abstract: An electronic device is disclosed herein and includes a multi-functional power button and a processor, where the multi-functional power button includes a power switch and a fingerprint recognition module. The fingerprint recognition module is combined on the power switch, and the processor is coupled to the multi-functional power button. The fingerprint recognition module is configured to extract a fingerprint feature information. The processor is configured to determine whether the multi-functional power button is pressed or touched to respectively cause the power switch to generate a switching signal or cause the fingerprint recognition module to extract the fingerprint feature information.Type: GrantFiled: July 23, 2015Date of Patent: April 17, 2018Assignee: QUANTA COMPUTER INC.Inventors: Yun-Cheng Liu, Wan-Chi Lin
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Publication number: 20180098703Abstract: A disposable ear probe cover includes a light-transmissive cover body, a flange and a spacer member. The flange is formed on the light-transmissive cover body to surround an opening end of the light-transmissive cover. The spacer member is formed on the light-transmissive cover body. Therefore, when the disposable ear probe cover is sleeved into another disposable ear probe cover which is identical to the disposable ear probe cover, the spacer member of the disposable ear probe cover supports the other disposable ear probe cover so that a void gap is defined between the flange of the disposable ear probe cover and another flange of the another disposable ear probe cover.Type: ApplicationFiled: December 9, 2016Publication date: April 12, 2018Applicant: Quanta Computer Inc.Inventors: Wan-Chi LIN, Yun-Cheng LIU
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Patent number: 9594441Abstract: A stylus includes a casing comprising an opening, a push rod disposed in the casing, a pen head fixed on an end of the push rod, a reflector coupled to the push rod, and a linkage mechanism disposed in the casing. At least a part of the pen head is exposed of the casing. An end of the linkage mechanism is fixed on the casing. The linkage mechanism connects reflector to the push rod, such that when the pen head is pushed into the casing, a moving distance of the reflector is greater than that of the pen head, and the reflector is exposed of the opening.Type: GrantFiled: February 11, 2015Date of Patent: March 14, 2017Assignee: Quanta Computer Inc.Inventors: Yun-Cheng Liu, Wan-Chi Lin, Tao-Feng Chen, Bo-Chun Hsu
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Publication number: 20160370880Abstract: An optical input method and an optical virtual mouse utilizing the same are provided. The optical input method, adopted by an optical virtual mouse, includes: emitting, by a light source, a first optical representation; generating, by an image sensor, a sense image which includes the first optical representation; determining, by a controller, a first distance between a first finger and the image sensor based on a first position of the first optical representation in the sense image; and determining, by the controller, a first displacement of the optical virtual mouse along a first direction according to the first distance.Type: ApplicationFiled: August 18, 2015Publication date: December 22, 2016Inventors: Yun-Cheng LIU, Chin-Kang CHANG, Chao-Ching HUANG
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Publication number: 20160364083Abstract: An optical touch system includes a screen, an image-erasing device, an image-sensing module, a processing unit, and an image processor. The image-erasing device includes a body and reflection portions on the body. The image-erasing device is detachably contacted with the screen. The image-sensing module includes a light source emitting a light beam to the reflection portions to respectively generate a reflected light beam, and an image sensor detecting the reflected light beams. The processing unit obtains positions on the screen respectively corresponding to the reflection portions according to the reflected light beams, and defines position information of an erasing region according to the positions on the screen. The image processor outputs a display image to be displayed on the screen, and erases data of the display image corresponding to the erasing region according to the position information.Type: ApplicationFiled: August 18, 2015Publication date: December 15, 2016Inventors: Yun-Cheng LIU, Chien-Hung LIN, Chung-Sheng WU
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Publication number: 20160337559Abstract: An electronic device is disclosed herein and includes a multi-functional power button and a processor, where the multi-functional power button includes a power switch and a fingerprint recognition module. The fingerprint recognition module is combined on the power switch, and the processor is coupled to the multi-functional power button. The fingerprint recognition module is configured to extract a fingerprint feature information. The processor is configured to determine whether the multi-functional power button is pressed or touched to respectively cause the power switch to generate a switching signal or cause the fingerprint recognition module to extract the fingerprint feature information.Type: ApplicationFiled: July 23, 2015Publication date: November 17, 2016Applicant: Quanta Computer Inc.Inventors: Yun-Cheng LIU, Wan-Chi LIN
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Publication number: 20160337558Abstract: A foldable electric device includes an upper member, a lower member, a fingerprint recognition module, a sensing unit, a control unit, and a power unit. The upper member and the lower member are pivoted with each other. The fingerprint recognition module is positioned on the upper member. The sensing unit is responsive to a motion of flipping the upper member so as to generate an enabling signal. The power unit distributes power to the control unit and the power unit according to the enabling signal, so that the control unit can compare the fingerprint characteristic information with the preloaded fingerprint data when the fingerprint recognition module captures fingerprint characteristic information. When the fingerprint characteristic information and the preloaded fingerprint data are matched, the control unit notifies an operating system to execute a boot process, and the fingerprint characteristic information serves as a basis for logging in the operating system.Type: ApplicationFiled: July 23, 2015Publication date: November 17, 2016Applicant: QUANTA COMPUTER INC.Inventors: Yun-Cheng LIU, Wan-Chi LIN, Ching-Hsien LIN
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Patent number: 9395848Abstract: An optical touch control system is disclosed, includes a display panel, first and second optical sensors, first and second light-emitting devices, and a controller. The first and second optical sensors are respectively disposed at opposite corners of the display panel. The first and second light-emitting devices are disposed on the first and second optical sensors, respectively. The controller turns off the first and second light-emitting devices and turns on the first optical sensor to obtain a first frame, only turns on the second light-emitting device and the first optical sensor to obtain a second frame, turns off the first and second light-emitting devices and turns on the second optical sensor to obtain a third frame, only turns on the first light-emitting device and the second optical sensor to obtain a fourth frame, and determines a gesture according to the first through the fourth frames.Type: GrantFiled: July 21, 2014Date of Patent: July 19, 2016Assignee: QUANTA COMPUTER INC.Inventors: Yun-Cheng Liu, Chien-Hung Lin
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Patent number: 9389780Abstract: A touch-control system includes at least two image capturing units and an electronic device. The image capturing units are configured to capture a plurality of hand images of a user. The electronic device is coupled to the image capturing units, and configured to recognize a target object from the hand images, and detect motions of the target object in an operating space. The electronic device includes a display unit, and the operating space includes a virtual touch-control plane. When the target object touches a virtual touch-control point on the virtual touch-control plane, the electronic device generates a touch-control signal and performs an associated touch-control operation at a position corresponding to the virtual touch-control points on the display unit.Type: GrantFiled: May 27, 2014Date of Patent: July 12, 2016Assignee: QUANTA COMPUTER INC.Inventors: Chien-Hung Lin, Yun-Cheng Liu
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Publication number: 20160188027Abstract: An optical touch display includes a display panel, a lens module disposed at a corner of the display panel, and a processing unit. The lens module includes a circuit board, a first light receiving unit disposed on the circuit board, and a second light receiving unit disposed on the circuit board. The first light receiving unit has a first coordinate. The images provided by the first light receiving unit and the second light receiving unit are sent to the processing unit, and a distance between an object and the first light receiving unit is calculated by the processing unit, such that a second coordinated of the object on the display panel is obtained according to the first coordinate, the distance, and an angle defined by a line connecting the object to the first light receiving unit and an top edge of the display panel.Type: ApplicationFiled: March 24, 2015Publication date: June 30, 2016Applicant: QUANTA COMPUTER INC.Inventors: Yun-Cheng LIU, Chien-Hung LIN
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Publication number: 20160188950Abstract: An optical fingerprint recognition device is provided. The optical fingerprint recognition device includes: an optical sensing surface; a first optical detection module having a first lens and a first optical sensor; and a second optical detection module having a second lens and a second optical sensor. The first optical detection module and the second optical detection module are arranged side by side in the optical fingerprint recognition device, and the first optical detection module and the second optical detection module are configured to capture a first fingerprint image and a second fingerprint image of a user's finger on a sensing area of the optical sensing surface for fingerprint recognition.Type: ApplicationFiled: February 11, 2015Publication date: June 30, 2016Inventors: Yun-Cheng Liu, Chin-Kang Chang, Chao-Ching Huang
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Patent number: 9367140Abstract: A keyboard device includes an operation surface. One long side of the operation surface is referred to as a proximal side, which nears a user operating the keyboard device; and the other long side is referred to as a distal side. A key unit is positioned on the proximal side, wherein the key unit includes a plurality of keys. A camera module is positioned on the distal side. An angle between a border of a field of view of the light sensor and the operation surface is set at a particular angle thus user's hand lays outside the field of view of the light sensor when the user is manipulating the key unit.Type: GrantFiled: July 22, 2013Date of Patent: June 14, 2016Assignee: QUANTA COMPUTER INC.Inventors: Chee-Chun Leung, Yun-Cheng Liu, Chien-Hung Lin
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Publication number: 20160019424Abstract: An optical touch-control system is provided. The optical touch-control system includes a display unit; a light source; an image capturing unit, configured to capture a plurality of images reflected by the light emitted by the light source in front of the display unit; and a processor, wherein the processor determines whether a target object is located in an operating space in front of the display unit based on the captured images, wherein when the processor determines that the target object is in a touch zone of the operating space, the processor further determines that the target object is to perform a touch-control operation, wherein when the processor determines that the target object is in a gesture zone of the operating space, the processor further determines that the target object is to perform a gesture operation.Type: ApplicationFiled: August 20, 2014Publication date: January 21, 2016Inventors: Yun-Cheng Liu, Chin-Kang Chang, Chao-Ching Huang
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Patent number: 9200747Abstract: An outer-hanging touch apparatus is hanged on a display apparatus. The display apparatus has a front surface, a top surface, and a rear surface. The outer-hanging touch apparatus includes a touch module and a hanging assembly. The hanging assembly includes a hanging member, an adjusting member, and a driving member. The hanging member is fixed to the touch module and extends to the rear surface. The hanging member includes a guiding structure. The adjusting member is slidably engaged with the guiding structure. The adjusting member abuts against a junction between the top and rear surfaces. The driving member is engaged with the hanging member and the adjusting member for moving the adjusting member relative to the hanging member. When the adjusting member moves toward or away from the touch module along the guiding structure, the hanging member correspondingly moves away from or toward the top surface.Type: GrantFiled: November 21, 2013Date of Patent: December 1, 2015Assignee: QUANTA COMPUTER INC.Inventors: Yun-Cheng Liu, Wan-Chi Lin, Bo-Chun Hsu
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Publication number: 20150317000Abstract: A stylus includes a casing comprising an opening, a push rod disposed in the casing, a pen head fixed on an end of the push rod, a reflector coupled to the push rod, and a linkage mechanism disposed in the casing. At least a part of the pen head is exposed of the casing. An end of the linkage mechanism is fixed on the casing. The linkage mechanism connects reflector to the push rod, such that when the pen head is pushed into the casing, a moving distance of the reflector is greater than that of the pen head, and the reflector is exposed of the opening.Type: ApplicationFiled: February 11, 2015Publication date: November 5, 2015Applicant: QUANTA COMPUTER INC.Inventors: Yun-Cheng LIU, Wan-Chi LIN, Tao-Feng CHEN, Bo-Chun HSU
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Publication number: 20150317022Abstract: An optical touch control system is disclosed, includes a display panel, first and second optical sensors, first and second light-emitting devices, and a controller. The first and second optical sensors are respectively disposed at opposite corners of the display panel. The first and second light-emitting devices are disposed on the first and second optical sensors, respectively. The controller turns off the first and second light-emitting devices and turns on the first optical sensor to obtain a first frame, only turns on the second light-emitting device and the first optical sensor to obtain a second frame, turns off the first and second light-emitting devices and turns on the second optical sensor to obtain a third frame, only turns on the first light-emitting device and the second optical sensor to obtain a fourth frame, and determines a gesture according to the first through the fourth frames.Type: ApplicationFiled: July 21, 2014Publication date: November 5, 2015Inventors: Yun-Cheng Liu, Chien-Hung Lin
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Publication number: 20150293689Abstract: A touch-control system is provided. The touch-control system includes: at least two image capturing units, configured to capture a plurality of hand images of a user; and an electronic device, coupled to the image capturing units, configured to recognize a target object from the hand images, and detect motions of the target object in an operating space, wherein the electronic device includes a display unit, and the operating space includes a virtual touch-control plane, wherein when the target object touches a virtual touch-control point on the virtual touch-control plane, the electronic device generates a touch-control signal and performs an associated touch-control operation at a position corresponding to the virtual touch-control points on the display unit.Type: ApplicationFiled: May 27, 2014Publication date: October 15, 2015Applicant: Quanta Computer Inc.Inventors: Chien-Hung Lin, Yun-Cheng Liu
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Publication number: 20150205442Abstract: The present invention provides an optical touch screen including a transparent panel, a camera module and at least one retro-reflector. The transparent panel includes a bottom surface and a touch surface opposite to each other, a corner and sides. The camera module disposed on the corner includes a light source, a light guide component, an optical clear adhesive and an optical sensor. The light source is used for emitting an incident light, in which a vertical distance between the light source and the touch surface is greater than a vertical distance between the bottom surface and the touch surface. The optical clear adhesive is used to fix the light guide component on the transparent panel, and the incident light enters the transparent panel through the light guide component and the optical clear adhesive with total reflection between the bottom surface and the touch surface.Type: ApplicationFiled: July 29, 2014Publication date: July 23, 2015Applicant: QUANTA COMPUTER INC.Inventors: Chien-Hung LIN, Yun-Cheng LIU