Patents by Inventor Kai Han

Kai Han 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: 10747314
    Abstract: A system includes an infrared light source, an infrared camera, and a controller. The controller includes processing circuitry configured to control a pulse illumination of the infrared light source, capture a sequence of images from the infrared camera including infrared noise combined with a captured reflection of the pulse illumination, filter the infrared noise from the sequence of images based on a comparison of the captured reflection of the pulse illumination to an expected result of the pulse illumination, and track a feature of interest in the sequence of images after filtering of the infrared noise.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: August 18, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kai-Han Chang, Thomas A. Seder
  • Publication number: 20200130775
    Abstract: A shock absorbing and height adjusting structure includes an inner tube, a lower piston assembly and an upper piston assembly. The inner tube includes an upper end, a lower end opposite to the upper end, and an inner space for accommodating a gas. The lower piston assembly includes a lower piston movably inserted into the inner tube, and a lower passage disposed at the lower piston. The upper piston assembly includes an upper piston movably inserted into the inner tube. When the lower passage is opened, the lower piston is moved relative to the lower end, and when the upper piston is forced, the upper piston has movement relative to the upper end toward the lower end to compress the gas.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Inventor: Kai-Han CHO
  • Patent number: 10629852
    Abstract: An organic light-emitting diode (OLED) pixel is composed of a plurality of subpixel elements and one or more lenses, including first, second and third subpixel elements that emit light beams having first, second and third colors, respectively. The first subpixel element exhibits a first light divergence angle, the second subpixel element exhibits a second light divergence angle, and the third subpixel element exhibits a third light divergence angle. A first lens is disposed on the second subpixel element, with a first refractive index to refract the light beam of the second subpixel element to a light divergence angle that is equivalent to the first light divergence angle. A second lens is disposed on the third subpixel element, with a refractive index to refract the light beam of the third subpixel element to a divergence angle that is equivalent to the first light divergence angle.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: April 21, 2020
    Assignee: GM Global Technology Operations LLC
    Inventors: Kai-Han Chang, Thomas A. Seder
  • Publication number: 20200073139
    Abstract: A tunable film apparatus is provided. The apparatus includes: a first and second layer, a linear polarizer disposed in front of the first layer, liquid crystal elements disposed between the first and second layer; and a tuner configured to cause temporal averaging of a light received through the linear polarizer.
    Type: Application
    Filed: September 4, 2018
    Publication date: March 5, 2020
    Inventor: Kai-Han Chang
  • Publication number: 20200073138
    Abstract: A tunable film apparatus is provided. The apparatus includes: first and second layers; a tunable liquid crystal layer disposed between the first and second layers; and a tuner configured to tune the liquid crystal layer to adjust a light diffusing angle of the tunable liquid crystal layer.
    Type: Application
    Filed: September 4, 2018
    Publication date: March 5, 2020
    Inventor: Kai-Han Chang
  • Publication number: 20200009616
    Abstract: The present invention provides a multi-unit rotary system and method for storage, intelligent sorting and picking of express parcels. Through adoption of layered design of a rotary storage unit, different sizes of parcels are stored in a sorting manner, thereby effectively increasing the utilization rate of the storage space; besides, due to the storage design of the subunits, arrangement of storage units of the system is more flexible, and the number of rotary storage unit subunits can be set freely according to the requirements for site space and the storage capacity for express parcels; through adoption of overall unit combination design of the present invention, the mounting, the layout and the maintenance of the system are more convenient, and during the operation of the system, automatic sorting and storage of the express parcels are achieved.
    Type: Application
    Filed: September 27, 2016
    Publication date: January 9, 2020
    Inventors: Hui LI, Bangchun WEN, Zhao hui REN, Jun an CHEN, He LI, Wei SUN, Qing kai HAN
  • Publication number: 20190341581
    Abstract: An organic light-emitting diode (OLED) pixel is composed of a plurality of subpixel elements and one or more lenses, including first, second and third subpixel elements that emit light beams having first, second and third colors, respectively. The first subpixel element exhibits a first light divergence angle, the second subpixel element exhibits a second light divergence angle, and the third subpixel element exhibits a third light divergence angle. A first lens is disposed on the second subpixel element, with a first refractive index to refract the light beam of the second subpixel element to a light divergence angle that is equivalent to the first light divergence angle. A second lens is disposed on the third subpixel element, with a refractive index to refract the light beam of the third subpixel element to a divergence angle that is equivalent to the first light divergence angle.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 7, 2019
    Applicant: GM Global Technology Operations LLC
    Inventors: Kai-Han Chang, Thomas A. Seder
  • Publication number: 20190317351
    Abstract: An optical device that is disposed to manage light transmittance therethrough includes a multi-layer photochromic sheet that is composed of a first layer, a second layer, and a photochromic layer interposed therebetween. The photochromic layer is composed of a mixture of dichroic dye and photo-isomerizable material that are disposed in a liquid crystal host, and the first and second layers are each fabricated from a clear polymer.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 17, 2019
    Applicant: GM Global Technology Operations LLC
    Inventor: Kai-Han Chang
  • Patent number: 10427602
    Abstract: An optical system for a vehicle includes a rearview display configured to display an image of an area behind the vehicle and a positive optical device in optical communication with the rearview display. As such, the image displayed by the rearview display is projected to a virtual image plane that is spaced apart from the positive optical device by a predetermined virtual image distance in order to minimize an accommodation and a convergence of the vehicle operator's eyes when the vehicle operator's eyes switch focus between the rearview display and an object located outside and in front of the vehicle.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 1, 2019
    Assignee: GM Global Technology Operations LLC.
    Inventors: Gary P. Bertollini, Kai-Han Chang
  • Patent number: 10335668
    Abstract: An electric vehicle includes a carrier, a free-wheel unit, a foot-wheel unit, a driving unit, a first angle-detecting unit and a micro processing unit. The carrier is for supporting a user. The free-wheel unit is disposed at one end of the carrier. The foot-wheel unit is disposed at the other end of the carrier. The driving unit is disposed at the free-wheel unit or the foot-wheel unit, and is for providing a power to the electric vehicle. The first angle-detecting unit is disposed at the free-wheel unit or the carrier, and is for detecting a swinging status between the free-wheel unit and the carrier so as to provide a swinging signal. The micro processing unit is signally connected to the driving unit and the first angle-detecting unit. When the swinging signal achieves a predetermined condition determined by the micro processing unit, the driving unit is turned on.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: July 2, 2019
    Inventor: Kai-Han Cho
  • Patent number: 10267960
    Abstract: A cloaking device includes a prism and a light guide. The prism is attachable to an article and is configured for directing around the article a light ray reflected from an object that is blocked from view. The prism has an object surface and an article surface spaced opposite the object surface. The guide is disposed on solely the object surface and has a refraction surface at least partially spaced apart from the object surface. The guide is configured for directing the ray through the prism such that the object is not blocked from view. The refraction surface and the ray define a first angle therebetween of less than 90°. The guide is formed from a first transparent material having a first refractive index and the prism is formed from a second transparent material having a second refractive index that is greater than or equal to the first refractive index.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: April 23, 2019
    Assignee: GM Global Technology Operations LLC
    Inventor: Kai-Han Chang
  • Publication number: 20190031047
    Abstract: An electric vehicle includes a carrier, at least one wheel assembly, a driving module and a controlling module. The carrier is for carrying an user. The wheel assembly is disposed at the carrier and includes a wheel. The driving module includes a motor disposed at the wheel assembly. The driving module is for switching the motor and includes a sensing unit and a microprocessor. The sensing unit is electronically connected to the motor to detect at least one characteristic of the motor. The microprocessor is electronically connected to the motor. The microprocessor determines whether a predetermined conduction is satisfied according to the characteristic of the motor. When the predetermined conduction is satisfied, the motor is turned off by the microprocessor.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 31, 2019
    Inventor: Kai-Han CHO
  • Publication number: 20180361226
    Abstract: An electric vehicle includes a carrier, a free-wheel unit, a foot-wheel unit, a driving unit, a first angle-detecting unit and a micro processing unit. The carrier is for supporting a user. The free-wheel unit is disposed at one end of the carrier. The foot-wheel unit is disposed at the other end of the carrier. The driving unit is disposed at the free-wheel unit or the foot-wheel unit, and is for providing a power to the electric vehicle. The first angle-detecting unit is disposed at the free-wheel unit or the carrier, and is for detecting a swinging status between the free-wheel unit and the carrier so as to provide a swinging signal. The micro processing unit is signally connected to the driving unit and the first angle-detecting unit. When the swinging signal achieves a predetermined condition determined by the micro processing unit, the driving unit is turned on.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 20, 2018
    Inventor: Kai-Han CHO
  • Patent number: 10140140
    Abstract: In various embodiments, methods and systems for remotely customizing a virtual machine in a cloud computing infrastructure are provided. A VM agent component provided on a virtual machine, while in communication with a VM deployment service associated therewith, can be configured to detect an incoming configuration payload that corresponds to a selected one or more extension packages cataloged on a VM marketplace component in communication with the VM deployment service component. Employing the configuration payload, the VM agent component can initialize communication with the extension repository to retrieve the one or more extension packages for storage and installation onto the virtual machine. Upon installing the one or more extension packages, the VM agent component can be configured to communicate a status report to the VM deployment service component for provision to an administrator.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: November 27, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Aaron Edward Spinks, Wakkas Rafiq, Sarat Rallapalli, Ahmed Hassan Elsayed El Baz, Kundana Palagiri, Zhidong Peng, Marc V. Greisen, Kai Han
  • Patent number: 9940424
    Abstract: The present disclosure is directed to systems and methods for a minimum-implant-area (MIA) aware detailed placement. In embodiments, the present disclosure clusters a violation cell with the cells having a same threshold voltage (Vt) and determines an optimal region for a cluster to minimize the wire-length. In further embodiments, an MIA-aware cell flipping technique minimizes a design area while satisfying the MIA constraint.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 10, 2018
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yao-Wen Chang, Kai-Han Tseng
  • Publication number: 20170344686
    Abstract: The present disclosure is directed to systems and methods for a minimum-implant-area (MIA) aware detailed placement. In embodiments, the present disclosure clusters a violation cell with the cells having a same threshold voltage (Vt) and determines an optimal region for a cluster to minimize the wire-length. In further embodiments, an MIA-aware cell flipping technique minimizes a design area while satisfying the MIA constraint.
    Type: Application
    Filed: May 25, 2016
    Publication date: November 30, 2017
    Inventors: Yao-Wen CHANG, Kai-Han TSENG
  • Publication number: 20170172717
    Abstract: A dental carrier comprises a thermoplastic carrier. The thermoplastic carrier has a pattern structure. After heating the thermoplastic carrier, the thermoplastic carrier is provided with a user to be impressed by teeth or alveolar ridge for forming teeth or alveolar ridge model of the user. Compared to the prior art, the dental carrier of the present invention can provide the dental medicament contained in the pattern structure to be precisely applied and hold onto the treatment area and the medicament can be evenly coated on the teeth, root, or periodontal tissue for the treatment of teeth. When the dental carrier is not used to carry medicament, the pattern structure can improve the mechanical strength and fitness of the dental carrier to be used as a biteplate, orthodontic retainer, periodontal dressing for treatment or protection or mouth guard in sports.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Inventors: WIN-PING DENG, HENG-YU LIU, HSIN-HUA CHOU, CHIN-YU TSAI, CHIUNG-FANG HUANG, CHUN-HSIANG WEN, PING-CHEN CHEN, CHING-SUNG CHEN, CHENG-HUSAN LIN, KAI-HAN LIAO
  • Publication number: 20170133516
    Abstract: The present disclosure relates to an array substrate, a method for manufacturing the array substrate and a display panel. The array substrate includes: a substrate; a poly-silicon thin film disposed on the substrate and including grains arranged along a first direction and a second direction, wherein grain boundaries of the grains extend along the first direction and the second direction; and a plurality of thin film transistors each including a channel formed by the poly-silicon thin film, wherein the channel includes a plurality of intersecting channel portions, each of which extends along a direction that neither perpendicular to nor parallel with the first or second direction.
    Type: Application
    Filed: September 23, 2016
    Publication date: May 11, 2017
    Applicant: EVERDISPLAY OPTRONICS (SHANGHAI) LIMITED
    Inventors: Dong REN, CHAHG-HAN CHIANG, CHENGCHE LEE, Kai HAN
  • Publication number: 20170003994
    Abstract: In various embodiments, methods and systems for remotely customizing a virtual machine in a cloud computing infrastructure are provided. A VM agent component provided on a virtual machine, while in communication with a VM deployment service associated therewith, can be configured to detect an incoming configuration payload that corresponds to a selected one or more extension packages cataloged on a VM marketplace component in communication with the VM deployment service component. Employing the configuration payload, the VM agent component can initialize communication with the extension repository to retrieve the one or more extension packages for storage and installation onto the virtual machine. Upon installing the one or more extension packages, the VM agent component can be configured to communicate a status report to the VM deployment service component for provision to an administrator.
    Type: Application
    Filed: June 30, 2015
    Publication date: January 5, 2017
    Inventors: AARON EDWARD SPINKS, WAKKAS RAFIQ, SARAT RALLAPALLI, AHMED HASSAN ELSAYED EL BAZ, KUNDANA PALAGIRI, ZHIDONG PENG, MARC V. GREISEN, KAI HAN
  • Patent number: 9269758
    Abstract: The present disclosure involves a method. The method includes providing a substrate including a top surface. The method also includes forming a gate over the top surface of the substrate. The formed gate has a first height measured from the top surface of the substrate. The method also includes etching the gate to reduce the gate to a second height. This second height is substantially less than the first height. The present disclosure also involves a semiconductor device. The semiconductor device includes a substrate. The substrate includes a top surface. The semiconductor device also includes a first gate formed over the top surface of the substrate. The first gate has a first height. The semiconductor device also includes a second gate formed over the top surface of the substrate. The second gate has a second height. The first height is substantially less than the second height.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: February 23, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jing-Hwang Yang, Chun-Heng Liao, Hsin-Li Cheng, Liang-Kai Han