Patents Assigned to UNIVERSITY OF SEOUL INDUSTRY COOPERATION
  • Photodetector capable of detecting the visible light spectrum
    Patent number: 8802481
    Abstract: Apparatuses capable of and techniques for detecting the visible light spectrum are provided.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 12, 2014
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • Power factor correction circuit for correcting power factor
    Patent number: 8791677
    Abstract: There is provided a power factor correction circuit capable of correcting a power factor of a power converting module through increasing an input current by switching a main switching element of a power converting module on the basis of a first reference wave having a slope based on a first signal and an error voltage, in particular, by limiting a switching frequency on the basis of a first reference wave having a slope based on a second signal lower than a first signal and an error voltage when the switching frequency of the main switching element increases because an input voltage of the power converting module is low.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: July 29, 2014
    Assignees: Samsung Electro-Mechanics Co., Ltd., University of Seoul Industry Cooperation Foundation
    Inventors: Jeong Mo Yang, Chang Sik Yoo, Yung Jin Moon, Yong Seong Roh, Joong Ho Choi, Jae Shin Lee, Jung Chul Gong, Yu Jin Jang
  • COUPLED ASYMMETRIC QUANTUM CONFINEMENT STRUCTURES
    Publication number: 20140206118
    Abstract: Implementations and techniques for coupled asymmetric quantum confinement structures are generally disclosed.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • Illumination driving apparatus
    Patent number: 8779682
    Abstract: A fixture-compatible, dimmable illumination driving apparatus including: a rectifying unit rectifying a phase-controlled waveform of an alternating current (AC) power; a comparing unit comparing an output waveform of the rectifying unit with a first voltage according to a preset reference clock; a reference voltage generating unit generating a reference voltage corresponding to the number of high signals higher than the first voltage among outputs of the comparing unit during one cycle of the output waveform; and a pulse width modulation (PWM) signal generating unit generating a PWM signal from the reference voltage and a feedback voltage.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: July 15, 2014
    Assignees: Samsung Electro-Mechanics Co., Ltd., University of Seoul Industry Cooperation Foundation
    Inventors: Joong Ho Choi, Yeun Joong Lee, Deuk Hee Park, Sang Hyun Cha, Chang Seok Lee
  • POWER FACTOR CORRECTION CIRCUIT
    Publication number: 20140185339
    Abstract: There is provided a power factor correction circuit including: a power conversion circuit unit controlling an inductor current according to a switching signal applied to a main switch to convert an external input voltage into an output voltage having a predetermined range; an imbalance detection circuit outputting an imbalance state signal when the external input voltage is in an unbalanced state by using the inductor current; and a soft start circuit unit performing soft starting by adjusting the switching signal when the imbalance state signal is output by the imbalance detection circuit unit.
    Type: Application
    Filed: May 10, 2013
    Publication date: July 3, 2014
    Applicants: University of Seoul Industry Cooperation Foundation, SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yu Jin JANG, Hwan CHO, Yong Seong ROH, Young Jin MOON, Jeong Pyo PARK, Chang Sik YOO, Jeong Mo YANG, Joong Ho CHOI
  • PHASE SHIFT CIRCUIT AND POWER FACTOR CORRECTION CIRCUIT INCLUDING THE SAME
    Publication number: 20140176089
    Abstract: There are provided a phase shift circuit and a power factor correction circuit including the same. The phase shift circuit includes a ramp generation unit charging or discharging a capacitor connected to a switch device to generate a ramp signal, a reference signal generation unit generating a predetermined reference signal from the ramp signal, and a comparison unit comparing the ramp signal with the reference signal to generate a clock signal, wherein at least one of the reference signal generation unit and the comparison unit changes a negative or positive value of offset components included in the reference signal or the ramp signal within every operating period of the switch device.
    Type: Application
    Filed: April 11, 2013
    Publication date: June 26, 2014
    Applicants: University of Seoul Industry Cooperation Foundation, SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Samsung Electro-Mechanics Co., Ltd., University of Seoul Industry Cooperation Foundation
  • Compound semiconductors
    Patent number: 8748862
    Abstract: Compound semiconductors capable of emitting light in the green spectrum are provided. The compound semiconductors may display improved quantum efficiencies when applied to various optical devices. Also, light emitting diodes and light emitting diode modules comprising the compound semiconductors are provided.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: June 10, 2014
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • QUANTUM KARNAUGH MAP
    Publication number: 20140157214
    Abstract: Techniques for determining and a computing device configured to determine a quantum Karnaugh map through decomposing a quantum circuit into a multiple number of sub-circuits are provided. Also, techniques for obtaining and a computing device configured to obtain a quantum circuit which includes the minimum number of gates among possible quantum circuits corresponding to a quantum Karnaugh map are also provided.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
    Inventor: Doyeol AHN
  • APPARATUS AND METHOD OF PLAYING BROADCAST CONTENT IN BROADCASTING SYSTEM
    Publication number: 20140130114
    Abstract: A method and an apparatus for playing broadcast content in a broadcasting system are provided. The method and the apparatus enable a viewer to watch an entire event by broadcasting the event through different networks in a condition that the event may not be broadcast from start to finish over a single broadcasting network.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicants: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION, Samsung Electronics Co., Ltd.
    Inventors: Sung-Oh HWANG, Yong-Han KIM, Kyung-Mo PARK, Sung-Ryeul RHYU
  • DISPLAY SECTION DETERMINATION
    Publication number: 20140118243
    Abstract: A glasses may include a pupil movement sensor configured to detect a movement of a pupil within an eye, a processor configured to determine a display section based, at least in part, on the movement of the pupil, and a display configured to display the determined display section.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 1, 2014
    Applicant: University of Seoul Industry Cooperation Foundation
    Inventor: Jin Suk KIM
  • POINTING POSITION DETERMINATION
    Publication number: 20140118250
    Abstract: A glasses may include a glasses frame configured to detect a touch input to the glasses frame, and a processor configured to determine a pointing position within an image displayed by a display based, at least in part, on the touch input.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 1, 2014
    Applicant: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
    Inventor: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION
  • Health monitoring system with a waveguide to guide a wave from a power source
    Patent number: 8708901
    Abstract: A health monitoring system includes a waveguide that receives a wave transmitted from an external power source and that guides the wave to reach within a width of a rectenna. The waveguide may include a negative refractive index medium and/or a surface plasmon medium.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: April 29, 2014
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • Coupled asymmetric quantum confinement structures
    Patent number: 8704248
    Abstract: Implementations and techniques for coupled asymmetric quantum confinement structures are generally disclosed.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 22, 2014
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • Polariton mode optical switch with composite structure
    Patent number: 8681411
    Abstract: Devices, methods, and techniques for frequency-dependent optical switching are provided. In one embodiment, a device includes a substrate, a first optical-field confining structure located on the substrate, a second optical-field confining structure located on the substrate, and a composite structure located between the first and second optical-field confining structures. The second optical-field confining structure may be spaced apart from the first optical-field confining structure. The composite structure may include an embedding structure with a surface to receive photons and multiple quantum structures located in the embedding structure.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: March 25, 2014
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • Quantum Karnaugh map
    Patent number: 8671369
    Abstract: Techniques for determining and a computing device configured to determine a quantum Karnaugh map through decomposing a quantum circuit into a multiple number of sub-circuits are provided. Also, techniques for obtaining and a computing device configured to obtain a quantum circuit which includes the minimum number of gates among possible quantum circuits corresponding to a quantum Karnaugh map are also provided.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: March 11, 2014
    Assignee: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • Apparatus and method of playing broadcast content in broadcasting system
    Patent number: 8661493
    Abstract: A method and an apparatus for playing broadcast content in a broadcasting system are provided. The method and the apparatus enable a viewer to watch an entire event by broadcasting the event through different networks in a condition that the event may not be broadcast from start to finish over a single broadcasting network.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: February 25, 2014
    Assignees: Samsung Electronics Co., Ltd., University of Seoul Industry Cooperation Foundation
    Inventors: Sung-Oh Hwang, Yong-Han Kim, Kyung-Mo Park, Sung-Ryeul Rhyu
  • ILLUMINATION DRIVING APPARATUS FOR LIGHT EMITTING DIODE AND METHOD THEREOF
    Publication number: 20140035473
    Abstract: There is provided an illumination driving apparatus for a light emitting diode, the apparatus including: a light emitting unit including M number of light emitting diodes (LEDs) connected in series and driven by an output voltage rectified in a rectifying unit; an LED switch unit including N number of LED switches connected in parallel with at least N number of the M LEDs, respectively, and connected in series; an LED switch control signal generating unit comparing the output voltage of the rectifying unit with each of the first to Nth preset reference voltages to generate N number of LED switch control signals controlling the LED switch unit; and an LED switch controlling unit transferring the N number of LED switch control signals to the LED switch unit.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 6, 2014
    Applicants: University Of Seoul Industry Cooperation Foundation, SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Deuk Hee PARK, Joong Ho CHOI, Sang Hyun CHA, Jae Shin LEE, Chang Seok LEE, Yun Joong LEE
  • Coupled Asymmetric Quantum Confinement Structures
    Publication number: 20140008612
    Abstract: Implementations and techniques for coupled asymmetric quantum confinement structures are generally disclosed.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: University of Seoul Industry Cooperation Foundation
    Inventor: Doyeol Ahn
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MESSAGE FOR DOWNLOADABLE CAS OR DRM IN MMT
    Publication number: 20130298253
    Abstract: A method for transmitting and receiving a message for Downloadable-Conditional Access System (D-CAS) or Downloadable-Digital Rights Management (D-DRM) in Moving Picture Experts Group Media Transport (MMT) is provided. The method includes, upon receiving Composition Information (CI) from an MMT server, acquiring signaling information for D-CAS or D-DRM, which is included in the CI, acquiring, from the signaling information, an address of a server from which software of D-CAS or D-DRM is downloadable, generating a request for the software based on the signaling information, and sending the request for the software to the server address.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 7, 2013
    Applicants: UNIVERSITY OF SEOUL INDUSTRY COOPERATION FOUNDATION, Samsung Electronics Co., Ltd.
    Inventors: Sung-Oh HWANG, Yong-Han KIM, Kyung-Mo PARK, Sung-Ryeul RHYU, Jae-Yeon SONG
  • SYSTEM AND METHOD FOR PROVIDING VEHICLES WITH INFORMATION ABOUT EVENTS OCCURRED ON ROAD
    Publication number: 20130289859
    Abstract: The present invention is directed to a system and method for providing vehicles with information about an event occurred on a road, capable of effectively providing information about an accident on a road to vehicles driving toward the region where the accident has occurred, even during hours or in regions in which vehicle traffic is low.
    Type: Application
    Filed: December 18, 2012
    Publication date: October 31, 2013
    Applicant: University of Seoul Industry Cooperation Foundation
    Inventor: Jin Suk KIM