Patents by Inventor Cheng-jung Lee

Cheng-jung Lee 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: 10361264
    Abstract: A method for driving a dual-media display panel includes the following. Display data is obtained. A first driving signal for driving a transparent display panel of the dual-media display panel is generated in response to the display data. A display-unit grayscale value for the display data is obtained. The display-unit grayscale value is determined whether it falls within a grayscale value interval. When the display-unit grayscale value is less than a lower limit of the grayscale value interval, a driving signal adapted to enabling the light-shielding display panel to display a black color is used as the second driving signal. When the display-unit grayscale value is greater than an upper limit of the grayscale value interval, a driving signal adapted to enabling the light-shielding display panel to display a white color is used as the second driving signal.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: July 23, 2019
    Assignees: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, INTELLECTUAL PROPERTY INNOVATION CORPORATION
    Inventors: Cheng-Chung Lee, Kuang-Jung Chen, Heng-Yin Chen, Sheng-Po Wang, Tzu-Yi Yu
  • Publication number: 20190198596
    Abstract: A method for driving a dual-media display panel includes the following. Display data is obtained. A first driving signal for driving a transparent display panel of the dual-media display panel is generated in response to the display data. A display-unit grayscale value for the display data is obtained. The display-unit grayscale value is determined whether it falls within a grayscale value interval. When the display-unit grayscale value is less than a lower limit of the grayscale value interval, a driving signal adapted to enabling the light-shielding display panel to display a black color is used as the second driving signal. When the display-unit grayscale value is greater than an upper limit of the grayscale value interval, a driving signal adapted to enabling the light-shielding display panel to display a white color is used as the second driving signal.
    Type: Application
    Filed: March 13, 2018
    Publication date: June 27, 2019
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Intellectual Property Innovation Corporation
    Inventors: Cheng-Chung LEE, Kuang-Jung CHEN, Heng-Yin CHEN, Sheng-Po WANG, Tzu-Yi YU
  • Publication number: 20180343772
    Abstract: This application is directed to a passively-cooled electronic device including a housing, a plurality of electronic assemblies and a plurality of thermally conductive parts. The electronic assemblies are enclosed in the housing, and include a first electronic assembly and a second electronic assembly. The first and second electronic assemblies are disposed proximately to each other within the housing, and the second electronic assembly is substantially sensitive to heat, including heat generated by operation of the first electronic assembly. The thermally conductive parts are coupled between the first electronic assembly and the housing, and configured to create a first plurality of heat conduction paths to conduct the heat generated by the first electronic assembly away from the second electronic assembly without using a fan. At least a subset of the thermally conductive parts mechanically supports one or both of the first and second electronic assemblies.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 29, 2018
    Inventors: Arun Raghupathy, Benjamin Niewood, Cheng-Jung Lee, Adam Scott Kilgore
  • Publication number: 20180343403
    Abstract: The various implementations described herein include methods, devices, and systems for illuminating and capturing scenes. In one aspect, a video camera assembly includes: (1) one or more processors configured to operate the video camera assembly in a day mode and in a night mode; (2) an image sensor having a field of view of a scene and configured to capture video of a first portion of the scene while in the day mode of operation and in the night mode of operation, the first portion corresponding to the field of view of the image sensor; (3) one or more infrared (IR) illuminators configured to provide illumination during the night mode of operation while the image sensor captures video; and (4) an IR reflector component configured to: (i) substantially restrict the illumination onto the first portion of the scene, and (ii) illuminate the first portion in a substantially uniform manner across the field of view of the image sensor.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 29, 2018
    Inventors: Rafat Mehdi, Benjamin Niewood, Jason Evans Goulden, Amber Luttmann Volmering, Cheng-Jung Lee, Jeffrey Boyd, Adam Scott Kilgore
  • Patent number: 9887465
    Abstract: Techniques and apparatus based on metamaterial structures provided for antenna and transmission line devices, including single-layer metallization and via-less metamaterial structures.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: February 6, 2018
    Assignee: Tyco Electronics Services GmbH
    Inventors: Ajay Gummalla, Maha Achour, Cheng Jung Lee, Vaneet Pathak, Gregory Poilasne
  • Patent number: 9768507
    Abstract: Antenna devices and techniques that provide specific control of the spatial distributions of DC and RF signals at various positions in a wireless apparatus are disclosed. The wireless apparatus includes various device components each having specifications for achieving desired operations in antenna devices.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: September 19, 2017
    Assignee: Tyco Electronics Services GmbH
    Inventors: Sunil Kumar Rajgopal, Cheng Jung Lee, Ajay Gummalla
  • Patent number: 9653821
    Abstract: An antenna structure with a radio frequency (RF) circuit, an antenna carrier, and conductive material disposed on the antenna carrier and coupled to the RF circuit slot is described. The conductive material can radiate or receive first electromagnetic energy as a loop antenna in a first frequency band in a second order mode. The conductive material can include a first slot between portions of the conductive material and a second slot between other portions of the conductive material. The first slot or the second slot can radiate or receive second electromagnetic energy as a slot antenna at a second frequency band in a first order mode. The second frequency band can be higher than the first frequency band.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: May 16, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Khaled Ahmad Obeidat, Ming Zheng, Adrian Napoles, Peter Eli Renner, Cheng Jung Lee
  • Patent number: 9548787
    Abstract: Antenna structures and methods of operating the same of an electronic device with an integrated power button-antenna structure are described. One apparatus includes a substrate, a first conductive trace disposed on the substrate, a second conductive trace disposed on the substrate and a switch mechanism including a non-conductive portion and a conductive portion. The switch mechanism electrically connects the first conductive trace and the second conductive trace to produce a first signal when the switch mechanism is activated. The second conductive trace forms an antenna element to radiate or receive electromagnetic energy.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: January 17, 2017
    Assignee: Amazon Technologies, Inc.
    Inventor: Cheng-Jung Lee
  • Patent number: 9543661
    Abstract: Architectures and implementations of a transceiver system for wireless communications are presented, the system including one or more antennas supporting a single frequency band or multiple frequency bands, a transmit circuit, a receive circuit, and an isolation circuit that is coupled to the one or more antennas and the transmit and receive circuits and provides adequate isolation between the transmit circuit and the receive circuit.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: January 10, 2017
    Assignee: Tyco Electronics Services GmbH
    Inventors: Cheng Jung Lee, Nhan Duc Nguyen, Ajay Gummalla
  • Patent number: 9490536
    Abstract: A multiband antenna for mobile devices that includes both energized and parasitically-coupled resonant elements. An energized element is fed radio frequency energy and resonates at a first frequency. A first parasitic element, arranged on a same surface as the energized element, is parasitically coupled to the energized element and resonates with at least a second frequency. A second parasitic element, arranged on a surface opposite the energized element resonates at a third frequency.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: November 8, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Cheng-Jung Lee, Tao Zhou
  • Publication number: 20160190705
    Abstract: This application relates to slot antenna devices based on Composite Right and Left Handed (CRLH) metamaterial (MTM) structures.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 30, 2016
    Inventors: Cheng Jung Lee, Ajay Gummalla, Maha Achour
  • Patent number: 9253733
    Abstract: Methods and systems are described for determining whether any one of three or more proximity test conditions is met using measurements from a plurality of proximity electrodes located relative to an antenna of a user device and reducing a transmit power level to be used by the antenna when any one of the three or more proximity test conditions is met. A user device obtains measurements from the proximity electrodes, checks the three or more proximity test conditions, and instructs a transmit power manager to reduce a transmit power level to transmit data when any one of the three or more proximity test conditions is met.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: February 2, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Cheng-Jung Lee, Allen Lee
  • Patent number: 9246228
    Abstract: An antenna device includes a substrate having a first surface and a second surface. A first conductive layer is formed on the first surface of the substrate, the first conductive layer having a perimeter defined by one or more shapes having straight or curved edges. The first conductive layer defines a slot and a coupling gap, and also includes a top ground. The coupling gap separates the top ground from a metal plate region. A second conductive layer is formed on the second surface of the substrate, the second conductive layer including a bottom ground. The slot, coupling gap, first conductive layer, and substrate form a composite right and left handed (CRLH) structure.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: January 26, 2016
    Assignee: Tyco Electronics Services GmbH
    Inventors: Cheng-Jung Lee, Ajay Gummalla, Maha Achour
  • Patent number: 9154178
    Abstract: A system includes a transmit filter (160) in a transmit path to couple to an antenna (120) and pass signals in a transmit band. A receive filter (155) is disposed in a receive path to couple to the antenna and to the transmit filter to pass signals in a receive band different from the transmit band. An enhanced frequency variable impedance (145) is used to provide isolation between signals in the transmit and receive bands on the receive path. A phase and magnitude controlled feedback path can also be used to cancel transmit signals in the receive path.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: October 6, 2015
    Assignee: Tyco Electronics Services GmbH
    Inventors: Woo Yong Lee, Cheng Jung Lee
  • Publication number: 20150178035
    Abstract: Disclosed is a smart phone/tablet computer capable of displaying and operation on front and rear sides or on multiple sides, including a main body. The main body has a front side and a rear side that are respectively provided with a first displaying/operating unit and a second displaying/operating unit. The main body has a further side electrically connected to at least one third displaying/operating unit. The main body includes a control unit, which enables a signal to displaying, in a synchronous or non-synchronous manner, on each of the first, second, and third displaying/operating units. The control unit includes an image processing section and at least one detachable third displaying/operating unit electrically connected thereto. After a signal has been processed by the image processing section, the first displaying/operating unit, the second displaying/operating unit, and the third displaying/operating unit are enabled to displaying one of a color signal and a grey-scale signal.
    Type: Application
    Filed: January 7, 2015
    Publication date: June 25, 2015
    Inventors: Jyh-Yi Loo, Cheng-Jung Lee
  • Publication number: 20150171518
    Abstract: A multiband antenna for mobile devices that includes both energized and parasitically-coupled resonant elements. An energized element is fed radio frequency energy and resonates at a first frequency. A first parasitic element, arranged on a same surface as the energized element, is parasitically coupled to the energized element and resonates with at least a second frequency. A second parasitic element, arranged on a surface opposite the energized element resonates at a third frequency.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 18, 2015
    Applicant: Amazon Technologies, Inc.
    Inventors: Cheng-Jung Lee, Tao Zhou
  • Publication number: 20150102968
    Abstract: Antenna devices and techniques that provide specific control of the spatial distributions of DC and RF signals at various positions in a wireless apparatus are disclosed. The wireless apparatus includes various device components each having specifications for achieving desired operations in antenna devices.
    Type: Application
    Filed: August 25, 2014
    Publication date: April 16, 2015
    Inventors: Sunil Kumar Rajgopal, Cheng Jung Lee, Ajay Gummalla
  • Patent number: 8872712
    Abstract: Methods and systems for extending a bandwidth of a multi-band antenna of a user device are described. A multi-band antenna includes a single radio frequency (RF) input coupled to a first antenna, the first antenna configured to provide a first resonant mode. The multi-band antenna also includes a second antenna parasitically coupled to the first antenna to provide additional resonant modes of the multi-band antenna.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: October 28, 2014
    Assignee: Amazon Technologies, Inc.
    Inventor: Cheng-Jung Lee
  • Patent number: 8816912
    Abstract: Antenna devices and techniques that provide specific control of the spatial distributions of DC and RF signals at various positions in a wireless apparatus are disclosed. The wireless apparatus includes various device components each having specifications for achieving desired operations in antenna devices.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 26, 2014
    Assignee: Tyco Electronics Services GmbH
    Inventors: Sunil Rajgopal, Cheng-Jung Lee, Ajay Gummalla
  • Patent number: 8803739
    Abstract: This application relates to a multi-functional Composite Right and Left Handed CRLH antenna device. A conductive element of a wireless device is incorporated into the antenna structure for reuse. In one embodiment a peripheral feature, such as a key dome, is incorporated into the antenna device. In this way, the antenna structure includes portions which are multi-functional.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: August 12, 2014
    Assignee: Tyco Electronics Services GmbH
    Inventors: Sunil Kumar Rajgopal, Ajay Gummalla, Cheng Jung Lee, Vaneet Pathak