Patents by Inventor Cheng Tao

Cheng Tao 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: 9800234
    Abstract: A clock and data recovery circuit and a phase interpolator therefor are provided. The clock and data recovery circuit includes a phase-locked loop, a control unit and the phase interpolator, a receiving circuit, a serial-to-parallel conversion circuit. The phase interpolator is connected with the control unit of the clock and data recovery circuit, and the phase interpolator includes: an encoding circuit, two multiplexers, a clock mixer, and two differential to single-ended amplifiers. The control unit is configured to further control the encoding circuit to change a delay position for a clock outputted by the phase interpolator in a case that the data sampled in the current clock position is not the optimal sampled data, to lead or lag the clock, thereby forming a stable state in which the clock follows the data dynamically.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: October 24, 2017
    Assignee: LONTIUM SEMICONDUCTOR CORPORATION
    Inventors: Lianliang Tai, Hongfeng Xia, Xi Xu, Diansheng Ren, Cheng Tao, Feng Chen
  • Patent number: 9787116
    Abstract: A charging circuit including a transformer, a storage element, a switch element, a first resistor, and a current detection unit is provided. The transformer includes a primary coil and a secondary coil. The storage element is coupled to the secondary coil. The switch element is coupled to the primary coil. The first resistor is coupled to the primary coil. The current detection unit detects current flowing through the first resistor. When the current reaches a set current, the current detection unit sends a full signal to de-activate the switch unit.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: October 10, 2017
    Assignee: Nuvoton Technology Corporation
    Inventor: Cheng-Tao Li
  • Patent number: 9773629
    Abstract: A magnetic sensing switch includes switch body having a hollow tube and an opening. A magnetic reed switch is disposed in the tube and includes two conductive points. The plug having an elastic clamping force is fixed in the opening by interference fit. The plug including a sealant injection portion and a retaining portion communicating with the tube. The two wires are inserted in the tube, one end of each wire is connected to one conductive point, and the other end passes through the retaining portion to protrude out of the tube. A sealant is injected into the tube via the sealant injection portion to entirely wrap the magnetic reed switch and the wires inside the tube, and the sealant partially protrudes out of the sealant injection portion.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: September 26, 2017
    Assignee: FINETEK CO., LTD.
    Inventors: Ting-Kuo Wu, Chih-Wen Wang, Cheng-Tao Li
  • Patent number: 9746603
    Abstract: A light guide includes a body transmittable to light and a plurality of light guiding elements. The body includes a first end face on an end thereof. The body further includes a light emitting portion, a deflecting portion, and two lateral sides. The light emitting portion and the deflecting portion are opposite to each other. Each of the two lateral sides is connected to the light emitting portion and the deflecting portion. The first end face is connected to the deflecting portion and each of the two lateral sides. Each light guiding element includes a curved face. The curved face is a conical surface or a part of the conical surface. The curved face is coupled to the deflecting portion. The light guiding elements can be arranged on the deflecting portion in one or more rows to control the light output directions and to reduce the illuminating angle.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 29, 2017
    Inventor: Cheng-Tao Lee
  • Publication number: 20170187361
    Abstract: A clock and data recovery circuit and a phase interpolator therefor are provided. The clock and data recovery circuit includes a phase-locked loop, a control unit and the phase interpolator, a receiving circuit, a serial-to-parallel conversion circuit. The phase interpolator is connected with the control unit of the clock and data recovery circuit, and the phase interpolator includes: an encoding circuit, two multiplexers, a clock mixer, and two differential to single-ended amplifiers. The control unit is configured to further control the encoding circuit to change a delay position for a clock outputted by the phase interpolator in a case that the data sampled in the current clock position is not the optimal sampled data, to lead or lag the clock, thereby forming a stable state in which the clock follows the data dynamically.
    Type: Application
    Filed: July 27, 2016
    Publication date: June 29, 2017
    Applicant: LONTIUM SEMICONDUCTOR CORPORATION
    Inventors: Lianliang TAI, Hongfeng XIA, Xi XU, Diansheng REN, Cheng TAO, Feng CHEN
  • Publication number: 20170102134
    Abstract: The present invention provides a tensile resistant light string comprising: multiple illuminating units electrically connected by multiple wires, wherein each one of the wires comprising: a tensile resistant layer; a conductive layer wrapping the tensile resistant layer, and an insulating layer wrapping the conductive layer; and wherein the insulating layer is made of cotton fiber, the conductive layer is consisting of multiple metal lines, the metal lines are made of copper, the tensile resistant layer is consisting of at least one line. The tensile resistance of the wires is enhanced by the tensile resistant layer.
    Type: Application
    Filed: December 3, 2015
    Publication date: April 13, 2017
    Inventors: Cheng-Tao Chang, Chu-Cheng Chang, Cheng-Fen Chang
  • Publication number: 20160259927
    Abstract: A storage device capable of fingerprint identification includes a first storage, a first controller and a second storage. The first storage is configured to store a registered fingerprint. The first controller is configured to compare the registered fingerprint with an input fingerprint, wherein the input fingerprint is obtained in response to a touch event. The second storage is configured to store a data. The data is, in response to a fingerprint comparison result, selectively allowed to be accessible or prohibited from being accessible to a host.
    Type: Application
    Filed: December 30, 2015
    Publication date: September 8, 2016
    Inventors: CHENG-TAO HO, CHENG MIN CHEN
  • Publication number: 20160198583
    Abstract: An AC to DC power adapter with an AC output has an AC output terminal serving to supply AC power to other equipment and connect to a peering AC to DC power adapter, such that multiple AC to DC power adapters can be connected in series with each other. Because all the AC to DC power adapters for installation at a site can be fully reused and no additional power adapters need to be purchased, material cost can be reduced. Also because the AC to DC power adapters can be relocated and reoriented and are sequentially connected with each other without having to concern locations of the fixed wall outlets to be connected, installation convenience can be ensured.
    Type: Application
    Filed: November 16, 2015
    Publication date: July 7, 2016
    Inventors: Cheng-Tao Chang, Chu-Cheng Chang, Cheng-Fen Chang
  • Patent number: 9367690
    Abstract: An encryption and decryption methods applied on an operating system kernel are disclosed, where a hash result is obtained from a computation between a booting program and the operating system kernel by using a definition table, the computation result is combined with the operating system kernel for encryption of the operating system kernel, and the operating system kernel may not be decrypted and thus booted whenever the booting program, the operating system kernel or the two combined are falsified or replaced, whereby the technical efficacy which the booting program and the operating system kernel are authenticated bilaterally for safety booting may be achieved.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: June 14, 2016
    Assignee: MOXA Inc.
    Inventors: Shang-Jyh Lin, Cheng-Tao Hsu
  • Patent number: 9368545
    Abstract: A device includes a plurality of isolation spacers, and a plurality of bottom electrodes, wherein adjacent ones of the plurality of bottom electrodes are insulated from each other by respective ones of the plurality of isolation spacers. A plurality of photoelectrical conversion regions overlaps the plurality of bottom electrodes, wherein adjacent ones of the plurality of photoelectrical conversion regions are insulated from each other by respective ones of the plurality of isolation spacers. A top electrode overlies the plurality of photoelectrical conversion regions and the plurality of isolation spacers.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: June 14, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Shin Chu, Cheng-Tao Lin, Meng-Hsun Wan, Szu-Ying Chen, Jen-Cheng Liu, Dun-Nian Yaung
  • Publication number: 20160064981
    Abstract: A charging circuit including a transformer, a storage element, a switch element, a first resistor, and a current detection unit is provided. The transformer includes a primary coil and a secondary coil. The storage element is coupled to the secondary coil. The switch element is coupled to the primary coil. The first resistor is coupled to the primary coil. The current detection unit detects current flowing through the first resistor. When the current reaches a set current, the current detection unit sends a full signal to de-activate the switch unit.
    Type: Application
    Filed: March 17, 2015
    Publication date: March 3, 2016
    Inventor: Cheng-Tao LI
  • Publication number: 20160047754
    Abstract: A light deflection detection module with a detection stage, a surface light source, at least two scanning cameras and a standard surface is provided. The detection stage is utilized for supporting an object. The surface light source is disposed above the detection stage, and emits a planar light to the detection stage. The at least two scanning cameras are disposed opposite the surface light source. The standard surface is disposed adjacent to the detection stage. When the surface light source emits the planar light to the detection stage, the planar light will be reflected by the surface of the object and the standard surface first, and then received by the at least two scanning cameras. A processor will perform a numerical analysis on the reflected planar light to obtain the detection data and to make the error correction.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventor: Cheng-Tao TSAI
  • Publication number: 20160047755
    Abstract: An optical measuring apparatus with a light source, an optical fiber connector, an optical probe, a plurality of optical fibers and an imaging processor is provided. The light source emits a first light beam. The optical fiber connector is disposed adjacent to the light source. The optical probe is disposed adjacent to the fiber connector and opposite the light source. The optical fibers are utilized to connect the light source, the optical fiber connector and the optical probe. The imaging processor is disposed on the same side as the light source, and is connected with the optical fiber connector.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventor: Cheng-Tao TSAI
  • Publication number: 20160047756
    Abstract: An optical measuring method for measuring the surface of a patterned sapphire substrate is provided. The method has the following steps: using an automated optical inspection procedure to check the surface of the patterned sapphire substrate and define a non-defective area and a defective area; providing a light source to emit a first light beam; making the first light beam pass through an optical fiber connector and an optical probe, and focus on a measurement focal point defined on the surface of the patterned sapphire substrate. The measurement focal point is disposed on the non-defective area. The optical probe has a pinhole disposed opposite the measurement focal point. The first light beam is emitted into the pinhole. The pinhole and the measurement focal point are conjugated.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 18, 2016
    Inventor: Cheng-Tao TSAI
  • Publication number: 20160018591
    Abstract: A backlight device includes a backboard having a first portion and a second portion. The second portion is mounted to an outer periphery of the first portion. The first portion and the second portion together define a light mixing chamber. An insulating layer is formed on a surface of the first portion in the light mixing chamber or a surface of the second portion in the light mixing chamber. A lighting module includes at least one conductive circuit and at least one light-emitting diode electrically connected to the at least one conductive circuit. The at least one conductive circuit is formed on the insulating layer. An optical module is mounted to the backboard and is located in a top of the light mixing chamber.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 21, 2016
    Inventor: Cheng-Tao Lee
  • Publication number: 20160004866
    Abstract: An encryption and decryption methods applied on an operating system kernel are disclosed, where a hash result is obtained from a computation between a booting program and the operating system kernel by using a definition table, the computation result is combined with the operating system kernel for encryption of the operating system kernel, and the operating system kernel may not be decrypted and thus booted whenever the booting program, the operating system kernel or the two combined are falsified or replaced, whereby the technical efficacy which the booting program and the operating system kernel are authenticated bilaterally for safety booting may be achieved.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 7, 2016
    Applicant: MOXA INC.
    Inventors: Shang-Jyh LIN, Cheng-Tao HSU
  • Publication number: 20150342058
    Abstract: A method for manufacturing a heat conducting substrate includes providing a metal plate with a first surface and an opposed second surface; forming a plurality of micro bumps on the first surface; disposing an adhesive layer on the first surface among the micro bumps; providing a circuit layer with a plurality of first openings formed thereon, positions of the first openings corresponding to positions of the micro bumps; fixing the circuit layer onto the adhesive layer, wherein the micro bumps are exposed through the first openings respectively; manufacturing circuits on the circuit layer; and finally, thinning a thickness of the metal plate. The method for manufacturing a heat conducting substrate has the manufactured heat conducting substrate to meet the requirements of being thin-shaped and having high heat conducting electronic elements, and has the advantage of an improved yield.
    Type: Application
    Filed: April 29, 2015
    Publication date: November 26, 2015
    Inventor: Cheng-Tao YANG
  • Publication number: 20150269277
    Abstract: Disclosed is a storing method for data acquisition, including: acquiring a collected data, and acquiring a generation time and a collection time for the collected data; obtaining an offset by computing a difference between the generation time and the collection time; and acquiring a default offset threshold, and determining whether the offset being less than the default offset threshold; if so, acquiring a centralized storage directory corresponding to the collected data, acquiring a generation time sub-directory corresponding to the generation time under the centralized storage directory, acquiring an offset sub-directory corresponding to the offset under the generation time sub-directory and storing the collected data in the offset sub-directory. The invention also provides a storing apparatus for data acquisition. The storing method and apparatus for data acquisition improve the data access efficiency.
    Type: Application
    Filed: June 5, 2015
    Publication date: September 24, 2015
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: YUE PENG QIU, JIAN KUI LIAO, MENG ZHANG, CHENG TAO FAN, GONG WEI LI
  • Patent number: 9111704
    Abstract: A rotary paddle level switch has a housing, a driving unit, two switches, a resilient member, a clutch, a transmission shaft, and a propeller. A resilient clip of the clutch holds a non-circular actuation section of the transmission shaft. When the driving unit drives the clutch to rotate, the transmission shaft and the propeller are driven by the clutch. When the propeller is rapidly rotated by suddenly exerting an excessively large external force thereon, as the resilient clip holds the transmission shaft by elastic force, the fast rotating transmission shaft removes itself from the holding of the resilient clip and is rotated without driving the resilient clip to rotate, thereby avoiding the transmission of the external force and damage to the driving unit. As the clutch just needs a clutch stand and a resilient clip to achieve the foregoing function, the level switch is structurally simple and relatively inexpensive.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: August 18, 2015
    Assignee: Finetek Co., Ltd.
    Inventors: Chih-Wen Wang, Ching-Jui Chen, Cheng-Tao Lee, Ting-Kuo Wu, Chao-Kai Cheng
  • Patent number: D766896
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: September 20, 2016
    Assignee: PARALO LLC
    Inventors: Shirley Li, Cheng Tao Yi, Ke Lou