Patents by Inventor Hui Han

Hui 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).

  • Publication number: 20170079077
    Abstract: A method and an apparatus for allocating an association identifier, so as to dynamically allocate an association identifier (AID) to a target station. The method according to the embodiments of the present disclosure includes sending, by an access point (AP), an AID allocation message to a target station, where the AID allocation message carries a target AID of the target station, and the target station is a station to be allocated with an AID or a station with an AID to be updated.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Tianyu Wu, Changle Li, Hui Han
  • Publication number: 20170070071
    Abstract: An electronic device is provided. The electronic device includes a battery, a power management integrated circuit (PMIC), that is electrically connected to the battery, adjusts at least part of power received from the battery, and outputs a controlled power, a processor electrically connected to the PMIC, at least one power sensor that is one of electrically connected between the battery and the PMIC and constitutes a part of the PMIC, and a control circuit electrically connected to the at least one power sensor. The control circuit acquires at least one of a current value and a power value input into the PMIC from the battery, determines whether at least one of the acquired current value and power value is greater than or equal to a threshold, and generates a first signal for controlling at least one of the PMIC and the processor, at least partially based on the determination.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 9, 2017
    Inventors: Yun-Hui HAN, Min-Su KIM, Chul-Woo PARK, Seung-Chul CHOI
  • Publication number: 20170057904
    Abstract: The present disclosure provides a process for producing dimethyl carbonate with high conversion rate. Alkylene glycol reacts with urea via alcohylysis reaction to produce alkylene carbonate and ammonia. The alkylene carbonate produced reacts with methanol via transesterification reaction to produce dimethyl carbonate. Before the dimethyl carbonate is separated from the mixture, the nitrogen-containing impurities are substantially removed. Unreacted feedstock and catalysts are recycled in the process.
    Type: Application
    Filed: September 23, 2015
    Publication date: March 2, 2017
    Inventors: Youqi Wang, Xunwen Wang, Zhijian Li, Hui Han
  • Patent number: 9538562
    Abstract: Embodiments of the present invention disclose a method and an apparatus for allocating an association identifier, so as to dynamically allocate an association identifier (AID) to a target station. The method according to the embodiments of the present invention includes: sending, by an access point (AP), an AID allocation message to a target station, where the AID allocation message carries a target AID of the target station, and the target station is a station to be allocated with an AID or a station with an AID to be updated.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: January 3, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tianyu Wu, Changle Li, Hui Han
  • Publication number: 20160156203
    Abstract: A method of performing a charging function by using different types of energy sources and an electronic device thereof are provided. The electronic device includes different types of circuits configured to acquire different types of energy sources, and a processor configured to determine an energy source for charging among the different types of energy sources based on respective current values for the different types of energy sources, and control the determined energy source for charging so as to be used in battery charging of the electronic device or in a system operation of the electronic device.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 2, 2016
    Inventors: Yun-Hui HAN, Chul-Woo PARK, Kisun LEE
  • Publication number: 20160126000
    Abstract: An inductor device is provided. The inductor device includes a coil unit that includes a pair of first and second coils disposed adjacent to each other and coupled to each other, a core unit that surrounds inner and outer spaces of the coil unit, and an induction unit that is disposed in the coil unit and is induced by a magnetic field generated between the first and second coils.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Inventors: Yun-Hui HAN, Kisun LEE, Chul-Woo PARK
  • Patent number: 9190897
    Abstract: A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirroring circuit (1), a level shift circuit (3), a high-voltage pre-modulation circuit (2), a dead time control circuit (4) and a heavy-current output stage (5); the heavy-current output stage adopts a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is utilized to ensure the drive circuit operating within a safe voltage range. Adding dead time control into the level shift circuit not only prevents the momentary heavy-current from a power supply to the ground during the level conversion process, but also reduces the static power consumption of the drive circuit.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: November 17, 2015
    Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.
    Inventors: Guoding Dai, Yue Chen, Xiaohui Ma, Hui Han, Renyue Ma
  • Publication number: 20150248135
    Abstract: A method of controlling current includes receiving a current value detected by at least one regulator supplying a unit-specific voltage to each unit of an electronic device. The method also includes controlling a current flowing through the each unit on the basis of the current value.
    Type: Application
    Filed: February 27, 2015
    Publication date: September 3, 2015
    Inventors: Yun Hui Han, Chul Woo Park, Ki Sun Lee
  • Publication number: 20150177344
    Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B?1#191 shimming and/or parallel imaging capabilities) and B1 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e.
    Type: Application
    Filed: May 21, 2013
    Publication date: June 25, 2015
    Inventors: Hui Han, Trong-Kha Truong, Allen W. Song
  • Publication number: 20150071304
    Abstract: A method includes determining at least one first station; and sending first indication information to the first station, where the first indication information is used for indicating at least one first backoff duration, so that the first station performs a data transmission operation by using the first backoff duration, and the first backoff duration used by the first station to perform a data transmission operation is less than a second backoff duration used by a second station to perform a data transmission operation, or the first backoff duration used by the first station to perform a data transmission operation is greater than the second backoff duration used by the second station to perform a data transmission operation. Shortening backoff durations of some stations can ensure that these stations send data first, and extending backoff durations of some stations can ensure that the other stations send data first.
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Inventors: Yunbo Li, Tianyu Wu, Xun Yang, Hui Han
  • Publication number: 20150050470
    Abstract: The present invention relates to a method for fabricating an in-mold transfer film, including the steps of: forming a substrate layer with any one of PVC, PET, and PETG; forming a hard coating layer having a given release force on top of the substrate layer; coating a primer layer on top of the hard coating layer so as to strengthen the bonding force between the hard coating layer and a printing layer to be formed on the primer layer; and forming the printing layer on top of the printer layer; and coating an adhesive layer on top of the printing layer.
    Type: Application
    Filed: March 18, 2013
    Publication date: February 19, 2015
    Inventors: Sang Hui Han, Hyung Gon Kim, Seung Hun Lee
  • Publication number: 20140369301
    Abstract: Embodiments of the present invention disclose a method and an apparatus for allocating an association identifier, so as to dynamically allocate an association identifier (AID) to a target station. The method according to the embodiments of the present invention includes: sending, by an access point (AP), an AID allocation message to a target station, where the AID allocation message carries a target AID of the target station, and the target station is a station to be allocated with an AID or a station with an AID to be updated.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 18, 2014
    Inventors: Tianyu Wu, Changle Li, Hui Han
  • Patent number: 8897989
    Abstract: A method for improving startability of a of a gasoline direct injection (GDI) engine by controlling an electric continuously variable valve timing (CVVT) may include determining whether the engine is running, calculating the phase angle of the camshaft and the difference between the position of the camshaft and the optimum position of the lobe of the high pressure pump, applying a duty to the drive motor to rotate the camshaft, calculating the difference between the current position of the camshaft after rotation and the target position of the camshaft, and comparing the difference with a predetermined value. When the difference is not smaller than a predetermined value, the duty is raised and applied to the drive motor to rotate the camshaft further until the difference is reduced and smaller than the predetermined value.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: November 25, 2014
    Assignee: Hyundai Motor Company
    Inventor: Sung Hui Han
  • Publication number: 20140293664
    Abstract: A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirroring circuit (1), a level shift circuit (3), a high-voltage pre-modulation circuit (2), a dead time control circuit (4) and a heavy-current output stage (5); the heavy-current output stage adopts a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is utilized to ensure the drive circuit operating within a safe voltage range. Adding dead time control into the level shift circuit not only prevents the momentary heavy-current from a power supply to the ground during the level conversion process, but also reduces the static power consumption of the drive circuit.
    Type: Application
    Filed: November 9, 2012
    Publication date: October 2, 2014
    Inventors: Guoding Dai, Yue Chen, Xiaohui Ma, Hui Han, Renyue Ma
  • Patent number: 8791695
    Abstract: An apparatus and method for performing nuclear magnetic resonance (NMR) or magnetic resonance imaging (MRI) on samples in metallic holders and vessels or in proximity to metallic objects is disclosed.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: July 29, 2014
    Assignee: University of New Brunswick
    Inventors: Bruce Balcom, Derrick Green, Hui Han
  • Patent number: 8717022
    Abstract: A method based on pure phase encode FIDs that permits high strength gradient measurement is disclosed. A small doped water phantom (1˜3 mm droplet, T1, T2, T2*<100 ?s) within a microprobe is excited by a series of closely spaced broadband RF pulses each followed by single FID point acquisition. Two trial gradient waveforms illustrate the technique, neither of which could be measured by the conventional microprobe measurement. The first is an extended duration gradient waveform while the other illustrates this method's ability to measure gradient waveforms with large net area and/or high amplitude. This method is a point monitor with simple implementation and low cost hardware requirements.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 6, 2014
    Assignee: University of New Brunswick
    Inventors: Hui Han, Bruce Balcom
  • Publication number: 20140002084
    Abstract: MRI systems with a new concept and hardware modality configured for parallel transmit, receive, and shim to address B0 and B1 inhomogeneity, both of which increase with field strength. This invention benefits from a number of advantages over existing technologies: it can save valuable space within the MRI magnet bore, largely reduce the manufacturing cost of MRI scanners, and avoid the electromagnetic interference issue associated with existing technologies.
    Type: Application
    Filed: May 21, 2013
    Publication date: January 2, 2014
    Inventors: Hui Han, Trong-Kha Truong, Allen W. Song
  • Publication number: 20130314424
    Abstract: A display module of an electronic device is for showing an operation interface of a first screen on a second screen of the electronic device, and the first screen is disposed on an opposite side of the second screen. The display module includes a graphics processing unit and a screen control unit. The graphics processing unit is coupled to a processing unit of the electronic device, the graphics processing unit receives display information from the processing unit, and the display information has a first pixel data, and the graphics processing unit processes the first pixel data to generate second pixel data. The screen control unit outputs the first pixel data to the second screen and a second display frame is displayed, and the screen control unit receives the second pixel data and outputs the second pixel data to the operation interface.
    Type: Application
    Filed: May 15, 2013
    Publication date: November 28, 2013
    Inventors: Cheng-Yao HUANG, Chia-Hui HAN, Huei-Ping TZENG, Wen-Chien YEN, Calvin Wing-Hang KU, Wei-Wen LUO, Hsien-Kuang CHIU
  • Publication number: 20130311373
    Abstract: An apparatus and a method perform paying for a product using a near field communication device. The method includes: when payment for a particular product is requested by a user, generating a payment request message for requesting payment for the particular product and transmitting the payment request message to a security element server; when a personal identification information request message for requesting personal identification information in response to the payment request message is received, receiving an input of personal identification information from the user; transmitting the input personal identification information to the security element server; and receiving a payment result message representing a result of the payment.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 21, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyu-Hui HAN, Jun-Kyoung SHIN, Dae-Haeng CHO
  • Publication number: 20130310026
    Abstract: An internet connection setting method of a portable electronic device includes following steps: establishing a connection between the portable electronic device and a communication electronic device; transferring compatible data from the portable electronic device or the communication electronic device which has the compatible data to the portable electronic device or the communication electronic device without the compatible data via the connection, wherein at least one of the portable electronic device and the communication electronic device has the compatible data; obtaining internet connecting data of the communication electronic device by the portable electronic device via the connection; generating internet setting data by the portable electronic device according to the internet connecting data; setting a connection by the portable electronic device according to the internet setting data; and connecting the portable electronic device to internet via the communication electronic device.
    Type: Application
    Filed: March 15, 2013
    Publication date: November 21, 2013
    Applicant: ASUSTEK COMPUTER INC.
    Inventors: Chia-Hui HAN, Fu-Chun MAI