Patents by Inventor Hwan JI

Hwan JI 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: 9871063
    Abstract: A display driver semiconductor device includes a high voltage well region being formed on a substrate, a first semiconductor device, a second semiconductor device, and a third semiconductor device. The first semiconductor device is formed on the high voltage well region and includes a first gate insulating layer. The second semiconductor device is formed adjacent to the first semiconductor device and includes a second gate insulating layer. The third semiconductor device is formed adjacent to the second semiconductor device and includes a third gate insulating layer. The first insulating layer may be formed using a chemical vapor deposition (CVD) process and the second insulating layer is formed using a thermal oxide process.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: January 16, 2018
    Assignee: Magnachip Semiconductor, Ltd.
    Inventors: Bo Seok Oh, Hee Hwan Ji, Jeong Hyeon Park
  • Publication number: 20180013421
    Abstract: A semiconductor device includes a first transistor, a second transistor, and a third transistor. The first transistor includes a first gate insulator, a first source region and a first drain region, a pair of lightly doped drain (LDD) regions that are each shallower than the first source region and the first drain region, and a first gate electrode. The second transistor includes a second gate insulator, a second source region and a second drain region, a pair of drift regions that encompass the second source region and the second drain region respectively, and a second gate electrode, and the third transistor comprises a third gate insulator, a third source region and a third drain region, and a pair of drift regions that encompass the third source and the third drain regions respectively, and a third gate electrode. The second gate insulator is thinner than the other gate insulators.
    Type: Application
    Filed: December 28, 2016
    Publication date: January 11, 2018
    Applicant: Magnachip Semiconductor, Ltd.
    Inventors: Jeong Hyeon PARK, Bo Seok OH, Hee Hwan JI
  • Patent number: 9800244
    Abstract: An inverter circuit includes a pull-up control circuit and a pull-up drive circuit. The pull-up control circuit generates a drive signal which is enabled during a first time period in response to an input signal and an output signal. The pull-up drive circuit drives the output signal to a power supply voltage in response to the input signal and the drive signal. The pull-up drive unit drives the output signal with a first drivability during the first time period and drives the output signal with a second drivability during a second time period.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 24, 2017
    Assignee: SK hynix Inc.
    Inventors: Jung Ho Lim, Jung Hwan Ji
  • Publication number: 20170230255
    Abstract: Provided is a method for measuring a throughput of a backhaul network. The method includes: estimating an available bandwidth of a backhaul network; determining the sizes (P) of packet trains by using the estimated available bandwidth; and calculating a virtual throughput of the backhaul network by using at least one parameter by transmitting N packet trains having the determined sizes to the backhaul network (N is a natural number that is equal to or greater than 2).
    Type: Application
    Filed: February 22, 2016
    Publication date: August 10, 2017
    Inventors: Jin Soup JOUNG, Seung Hwan JI, Oh Keol KWON, Ro Mi CHOE
  • Patent number: 9691323
    Abstract: The organic light emitting display may include a plurality of pixels for generating light components with predetermined brightness components while controlling the amount of current that flows from a first power source to a second power source via organic light emitting diodes (OLED), a first power source controller for extracting data of the highest gray level among input data items of one frame and for outputting a control value having voltage information corresponding to the highest gray level data, and a first power source generator for generating a controlled voltage value corresponding to the control value and outputting the controlled voltage value to the first power source.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: June 27, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Baek-Woon Lee, In-Hwan Ji
  • Publication number: 20170170831
    Abstract: An inverter circuit includes a pull-up control circuit and a pull-up drive circuit. The pull-up control circuit generates a drive signal which is enabled during a first time period in response to an input signal and an output signal. The pull-up drive circuit drives the output signal to a power supply voltage in response to the input signal and the drive signal. The pull-up drive unit drives the output signal with a first drivability during the first time period and drives the output signal with a second drivability during a second time period.
    Type: Application
    Filed: March 31, 2016
    Publication date: June 15, 2017
    Inventors: Jung Ho LIM, Jung Hwan JI
  • Patent number: 9562816
    Abstract: Provided is an apparatus for inspecting a magazine including a plurality of partially-finished products. The apparatus is configured to inspect a stopper of the magazine before providing the magazine to a packaging process, and further configured to classify the stopper into a normal product. The magazine comprising the stopper classified as the normal product is into the packaging process.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: February 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-hwan Ji, Jung-hun Choi, Sung-yeol Lee, Hee-sang Yang, Jae-nam Lee
  • Patent number: 9564191
    Abstract: A signal compensation circuit includes a first path configured to cause a source signal to pass therethrough and be outputted as a first signal; a delay block configured to output a second signal by delaying the source signal by a predetermined time; a second path configured to cause the second signal to pass therethrough and be outputted as a third signal; and a signal combination block configured to generate a compensated signal by combining the first signal and the third signal.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: February 7, 2017
    Assignee: SK HYNIX INC.
    Inventors: Jung Hwan Ji, Ki Chon Park
  • Patent number: 9564195
    Abstract: An address comparator circuit includes a first determination unit suitable for activating a first control signal when a first address corresponding to a previous read command is identical with a second address corresponding to a current read command; a second determination unit suitable for activating a second control signal when the previous and current read commands are consecutively inputted to the address comparator circuit with an interval of a specific number of clocks or less; and a blocking signal generation unit suitable for generating a blocking signal that blocks data transmission between a memory array and an external device based on the first and the second control signals.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: February 7, 2017
    Assignee: SK Hynix Inc.
    Inventors: Jung-Hwan Ji, Ki-Chon Park
  • Patent number: 9565134
    Abstract: Provided is a long term evolution (LTE) femtocell based content service system and a driving method thereof, which include user equipment (UE) connected to an evolved packet core (EPC) network that is a core network through routes, that is, a radio network subsystem (RNS) and a home eNode subsystem (HeNS) having a femtocell and a content service server connected to the EPC network and configured to receive system information including PCI, U_DL BW, Cell ID, TAC, HeNB Name and SNR, and query data from the user equipment (UE), retrieve corresponding content with reference to the received system information and query data, and provide the corresponding content to the user equipment (UE).
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 7, 2017
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jin Soup Joung, Seung-Hwan Ji, Hong Gil Kim
  • Patent number: 9510238
    Abstract: Provided is a media access control processing unit (MAC) sharing method applied to a fifth generation (5G), which is a next generation, mobile communication system and making it possible to efficiently share a plurality of MACs so as to efficiently distribute and process traffic of user equipment (UE).
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 29, 2016
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jin Soup Joung, Seung Hwan Ji, Myung Jong Kim, Seung Hwan Lee
  • Patent number: 9497702
    Abstract: A method of controlling power of a physical layer device of a base station in a mobile communication system which is applied to a fifth generation (5G), that is the next generation, mobile communication system and makes it possible to efficiently control the power of physical layer devices managing each beam spot, such as a radio frequency (RF) module and a modem, according to the number of pieces of user equipment (UE) or an amount of traffic processed by the beam spot. The method is applied to a mobile communication system including a plurality of media access control processing units (MACs) corresponding to a plurality of modems on a one-to-one basis and the plurality of modems each connected with one or more RF modules covering beam spots dividing a base station cell.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: November 15, 2016
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jin Soup Joung, Seung Hwan Ji, Myung Jong Kim, Seung Hwan Lee
  • Publication number: 20160260470
    Abstract: A semiconductor system may include a first semiconductor configured to output a command signal and an address signal. The semiconductor system may include a second semiconductor device configured to include a first operation circuit including a first MOS transistor and a second operation circuit including a second MOS transistor. The first MOS transistor and the second MOS transistor may be turned on in response to a first internal command signal when a first operation is executed according to the command signal. The first MOS transistor may be turned on in response to a period signal generated from the address signal when a second operation is executed according to the command signal.
    Type: Application
    Filed: May 20, 2015
    Publication date: September 8, 2016
    Inventors: Jung Hwan JI, Geun Il LEE
  • Publication number: 20160198340
    Abstract: A resource allocation algorithm and operation procedure for user equipment (UE) to efficiently report cell global identity (CGI) information to an evolved node base station (eNB) in an automatic neighbor relation (ANR) operation procedure in a wireless communication system. According to an operating method of an eNB for CGI information reporting in a wireless communication system, a serving eNB receives a CGI information report and perform an ANR operation to maintain service quality through effective handover of UE at the edge of the service area of the serving eNB. When there is uplink/downlink data, the serving eNB stops data allocation to the UE and requests measurement reports (MRs) of neighbor eNBs, and the UE can be switched to a discontinuous reception (DRX) state during a DRX-inactivity time. Accordingly, it is possible to ensure decoding of a broadcast channel (BCH) of a neighbor cell and report CGI information.
    Type: Application
    Filed: February 19, 2015
    Publication date: July 7, 2016
    Inventors: Jin Soup Joung, Seung Hwan Ji, Seo Kyun Jang, Yong Hee Kim
  • Publication number: 20160192290
    Abstract: A method of controlling power of a physical layer device of a base station in a mobile communication system which is applied to a fifth generation (5G), that is the next generation, mobile communication system and makes it possible to efficiently control the power of physical layer devices managing each beam spot, such as a radio frequency (RF) module and a modem, according to the number of pieces of user equipment (UE) or an amount of traffic processed by the beam spot. The method is applied to a mobile communication system including a plurality of media access control processing units (MACs) corresponding to a plurality of modems on a one-to-one basis and the plurality of modems each connected with one or more RF modules covering beam spots dividing a base station cell.
    Type: Application
    Filed: February 23, 2015
    Publication date: June 30, 2016
    Inventors: Jin Soup Joung, Seung Hwan Ji, Myung Jong Kim, Seung Hwan Lee
  • Publication number: 20160192237
    Abstract: Provided is a media access control processing unit (MAC) sharing method applied to a fifth generation (5G), which is a next generation, mobile communication system and making it possible to efficiently share a plurality of MACs so as to efficiently distribute and process traffic of user equipment (UE).
    Type: Application
    Filed: March 5, 2015
    Publication date: June 30, 2016
    Inventors: Jin Soup Joung, Seung Hwan Ji, Myung Jong Kim, Seung Hwan Lee
  • Publication number: 20160192345
    Abstract: A method of adjusting the coverage of a small cell for efficient use of cell resources in which the position of user equipment (UE) in the small cell is estimated using timing advance information of the UE, and the coverage is adjusted in consideration of a load state of the cell and a channel state of the UE.
    Type: Application
    Filed: March 10, 2015
    Publication date: June 30, 2016
    Inventors: Jin Soup Joung, Seung Hwan Ji, Beom-Sik Kim, Sang-Ik Cho
  • Patent number: 9380583
    Abstract: A method of adjusting the coverage of a small cell for efficient use of cell resources in which the position of user equipment (UE) in the small cell is estimated using timing advance information of the UE, and the coverage is adjusted in consideration of a load state of the cell and a channel state of the UE.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 28, 2016
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jin Soup Joung, Seung Hwan Ji, Beom-Sik Kim, Sang-lk Cho
  • Publication number: 20160163368
    Abstract: An address comparator circuit includes a first determination unit suitable for activating a first control signal when a first address corresponding to a previous read command is identical with a second address corresponding to a current read command; a second determination unit suitable for activating a second control signal when the previous and current read commands are consecutively inputted to the address comparator circuit with an interval of a specific number of clocks or less; and a blocking signal generation unit suitable for generating a blocking signal that blocks data transmission between a memory array and an external device based on the first and the second control signals.
    Type: Application
    Filed: April 7, 2015
    Publication date: June 9, 2016
    Inventors: Jung-Hwan JI, Ki-Chon PARK
  • Publication number: 20160151705
    Abstract: Provided is a system of providing augmented reality contents using a toy attachable add-on device. When a user couples an add-on device including a sensor and a communication unit to a toy having identification information and then performs various play activities, an image is captured by a camera to be displayed on a screen, and contents corresponding to the identification information of the toy are withdrawn to be overlaid on the screen. In this case, contents display method is appropriately selected using information on the operation state of the toy and a value detected by a built-in sensor of the add-on device. Contents corresponding to toys can be displayed through augmented reality, only by simply coupling an add-on device to various toys. Thus, a user can enjoy augmented reality contents while performing play activities using various toys.
    Type: Application
    Filed: July 8, 2014
    Publication date: June 2, 2016
    Inventor: Seung Hwan JI