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).

  • Patent number: 9946913
    Abstract: 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: Grant
    Filed: July 23, 2015
    Date of Patent: April 17, 2018
    Assignee: QUANTA COMPUTER INC.
    Inventors: Yun-Cheng Liu, Wan-Chi Lin
  • Publication number: 20180098703
    Abstract: 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: Application
    Filed: December 9, 2016
    Publication date: April 12, 2018
    Applicant: Quanta Computer Inc.
    Inventors: Wan-Chi LIN, Yun-Cheng LIU
  • Patent number: 9594441
    Abstract: 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: Grant
    Filed: February 11, 2015
    Date of Patent: March 14, 2017
    Assignee: Quanta Computer Inc.
    Inventors: Yun-Cheng Liu, Wan-Chi Lin, Tao-Feng Chen, Bo-Chun Hsu
  • Publication number: 20160370880
    Abstract: 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: Application
    Filed: August 18, 2015
    Publication date: December 22, 2016
    Inventors: Yun-Cheng LIU, Chin-Kang CHANG, Chao-Ching HUANG
  • Publication number: 20160364083
    Abstract: 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: Application
    Filed: August 18, 2015
    Publication date: December 15, 2016
    Inventors: Yun-Cheng LIU, Chien-Hung LIN, Chung-Sheng WU
  • Publication number: 20160337558
    Abstract: 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: Application
    Filed: July 23, 2015
    Publication date: November 17, 2016
    Applicant: QUANTA COMPUTER INC.
    Inventors: Yun-Cheng LIU, Wan-Chi LIN, Ching-Hsien LIN
  • Publication number: 20160337559
    Abstract: 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: Application
    Filed: July 23, 2015
    Publication date: November 17, 2016
    Applicant: Quanta Computer Inc.
    Inventors: Yun-Cheng LIU, Wan-Chi LIN
  • Patent number: 9395848
    Abstract: 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: Grant
    Filed: July 21, 2014
    Date of Patent: July 19, 2016
    Assignee: QUANTA COMPUTER INC.
    Inventors: Yun-Cheng Liu, Chien-Hung Lin
  • Patent number: 9389780
    Abstract: 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: Grant
    Filed: May 27, 2014
    Date of Patent: July 12, 2016
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chien-Hung Lin, Yun-Cheng Liu
  • Publication number: 20160188027
    Abstract: 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: Application
    Filed: March 24, 2015
    Publication date: June 30, 2016
    Applicant: QUANTA COMPUTER INC.
    Inventors: Yun-Cheng LIU, Chien-Hung LIN
  • Publication number: 20160188950
    Abstract: 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: Application
    Filed: February 11, 2015
    Publication date: June 30, 2016
    Inventors: Yun-Cheng Liu, Chin-Kang Chang, Chao-Ching Huang
  • Patent number: 9367140
    Abstract: 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: Grant
    Filed: July 22, 2013
    Date of Patent: June 14, 2016
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chee-Chun Leung, Yun-Cheng Liu, Chien-Hung Lin
  • Publication number: 20160019424
    Abstract: 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: Application
    Filed: August 20, 2014
    Publication date: January 21, 2016
    Inventors: Yun-Cheng Liu, Chin-Kang Chang, Chao-Ching Huang
  • Patent number: 9200747
    Abstract: 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: Grant
    Filed: November 21, 2013
    Date of Patent: December 1, 2015
    Assignee: QUANTA COMPUTER INC.
    Inventors: Yun-Cheng Liu, Wan-Chi Lin, Bo-Chun Hsu
  • Publication number: 20150317022
    Abstract: 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: Application
    Filed: July 21, 2014
    Publication date: November 5, 2015
    Inventors: Yun-Cheng Liu, Chien-Hung Lin
  • Publication number: 20150317000
    Abstract: 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: Application
    Filed: February 11, 2015
    Publication date: November 5, 2015
    Applicant: QUANTA COMPUTER INC.
    Inventors: Yun-Cheng LIU, Wan-Chi LIN, Tao-Feng CHEN, Bo-Chun HSU
  • Publication number: 20150293689
    Abstract: 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: Application
    Filed: May 27, 2014
    Publication date: October 15, 2015
    Applicant: Quanta Computer Inc.
    Inventors: Chien-Hung Lin, Yun-Cheng Liu
  • Publication number: 20150205442
    Abstract: 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: Application
    Filed: July 29, 2014
    Publication date: July 23, 2015
    Applicant: QUANTA COMPUTER INC.
    Inventors: Chien-Hung LIN, Yun-Cheng LIU
  • Patent number: 8988392
    Abstract: An optical touch control system is disclosed. A reflector surrounds a monitor. At least one image detection module is adjacent to the monitor and includes an image sensor, a reflective mirror, and a light source. The image sensor is electrically connected to an image processor. The reflective mirror is disposed on the image sensor and inclines to the image sensor by a predetermined angle. The light source outputs light onto the monitor. The reflective mirror reflects the light reflected by the reflector to the image sensor, identifying a touch control operation.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 24, 2015
    Assignee: Quanta Computer Inc.
    Inventors: Yun-Cheng Liu, Chien-Hung Lin
  • Patent number: 8982101
    Abstract: The invention provides an optical touch system, including a camera having a lens and an image sensor to capture an image of a touch object on the image sensor through the lens, an active light source for lighting the touch object, and a processor for determining the distance between the touch object and the camera according to the size of the image or the brightness of the image on the image sensor, determining the direction of the touch object according to the position of the image on the image sensor, and calculating the position of the touch object.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: March 17, 2015
    Assignee: Quanta Computer Inc.
    Inventors: Chee-Chun Leung, Yun-Cheng Liu, Chien-Hung Lin