Patents by Inventor Yoon Cho

Yoon Cho 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: 8874608
    Abstract: A mobile terminal includes a wireless communication unit communicating with a server providing a social network service, a memory storing a contact list and account information related to the social network service, a user input unit receiving a search query, a controller searching for a contact person in the contact list based on the search query, the controller also connecting and transmitting information of the contact person found in the contact list to the server, and receiving a search result from the server, and a display unit displaying the search result.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: October 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yoo-Mee Song, Byung-Sang Yeo, Yee-Rang Yun, Hye-Youn Cho, Seong-Yoon Cho, Kyoung-Hee Son
  • Patent number: 8848822
    Abstract: A feedback method for interference alignment in wireless network having K transmitters and K receivers, the method including: transmitting, by a transmitter n?1, a precoding vector of the transmitter n?1 (n being an integer between 2 and K?1) to a receiver n+1; calculating, by the receiver n+1, a precoding vector of a transmitter n using the precoding vector of the transmitter n?1; and transmitting, by the receiver n+1, the precoding vector of the transmitter n to the transmitter n.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 30, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8850333
    Abstract: A mobile terminal and display controlling method thereof are disclosed. The present invention includes storing user registration information registered at each of one or more websites, receiving an input of a command signal for providing the user registration information, and displaying a registration information indicator corresponding to each of the one or more websites. Displaying the registration information indicator includes displaying the stored user registration information registered at the corresponding website within the registration information indicator.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: September 30, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yoo Mee Song, Byung Sang Yeo, Seong Yoon Cho, Yee Rang Yun, Hye Youn Cho, Dong Seok Lee
  • Patent number: 8843166
    Abstract: A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom (DoF) of a transmitter 1 is (M/2??), a DoF of the transmitter 2 or the transmitter 3 is M/2.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 23, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8832586
    Abstract: A mobile terminal including a wireless communication unit configured to transmit and receive signals to and from a network or Internet site; and a controller operatively connected to the wireless communication unit and configured to set an automatic login region or time period within the mobile terminal for automatically logging into the network or Internet site, to determine whether or not the mobile terminal has entered or exited the automatic login region or time period and generate a corresponding determination result, and to automatically log into the network or Internet site if the determination result indicates that the mobile terminal has entered the automatic login region or time period.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: September 9, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yoo Mee Song, Byung Sang Yeo, Seong Yoon Cho, Yee Rang Yun, Hye Youn Cho, Dong Seok Lee
  • Patent number: 8818445
    Abstract: A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method includes: receiving, performed by receiver n (n is an integer, 1?n?K?1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: August 26, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8724004
    Abstract: A mobile terminal and its tag editing method are provided. The tag editing method of a mobile terminal includes operating a camera, displaying a preview image inputted via the camera on a preview screen, entering a tag editing mode from the preview screen, editing tag information in the tag editing mode, capturing an image by the camera after editing the tag information, tagging the edited tag information to the captured image to form a tagged image; and displaying the tagged image.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 13, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yoo-Mee Song, Byung-Sang Yeo, Seong-Yoon Cho, Yee-Rang Yun, Hye-Youn Cho, Dong-Seok Lee
  • Publication number: 20140102767
    Abstract: Disclosed herein is a multi-layer type printed circuit board, including; a first insulating layer including at least one first pillar; a plurality of insulating layers laminated in a both surfaces direction of the first insulating layer, each including at least one circuit layer and at least another pillar connected to the circuit layer; and a plurality of outermost circuit layers disposed on an outer surface of the outermost insulating layer, while contacting an outermost pillar disposed on an outermost insulating layer among the plurality of insulating layers, wherein the circuit layer and another pillar each formed in a both surfaces direction of the first insulating layer are disposed in a symmetrical form to each other based on the first insulating layer.
    Type: Application
    Filed: March 18, 2013
    Publication date: April 17, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Myung Sam Kang, Ki Hwan Kim, Yong Yoon Cho, Sung Won Jeong, Sang Hyuck Oh, Da Hee Kim, Yoong Oh, Ki Young Yoo
  • Patent number: 8565828
    Abstract: A mobile terminal having a touch sensor-equipped input device and its control method are disclosed. The mobile terminal includes: a user input unit in which a keypad-printed layer and a touch sensor overlap with each other; and a controller that controls an operation mode of the user input unit in a touch pad and/or a touch keypad mode according to whether or not a cursor is in use.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: October 22, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jun-Hee Kim, Sang-Yeon Lim, Seong-Yoon Cho, Jae-Keun Kim, Hoi-Chul Kim
  • Publication number: 20130208825
    Abstract: Provided is a method and a device for precoding in a wireless communication system. The method for precoding comprises the following steps: generating a first precoding matrix, W1, for deciding the transmission power of one transmission antenna from a plurality of transmission antennas as the maximum power per antenna; generating a zero forcing (ZF) precoding matrix, Ti, which does not influence the transmission antenna having the power which is decided as the maximum power per antenna, based on the (i?1)th precoding matrix Wi?1 (i=2,3, . . .
    Type: Application
    Filed: September 7, 2011
    Publication date: August 15, 2013
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY, LG ELECTRONICS INC.
    Inventors: Ki Jun Kim, Sung Yoon Cho, Dong Ku Kim, Jin Young Jang, Byoung Hoon Kim, Hyuk Jin Chae
  • Publication number: 20130202059
    Abstract: Provided is a method and a device for generating a precoding matrix in a wireless communication system. The method for generating the precoding matrix comprises a step of receiving from a terminal feedback including information on the error angle ? of channel direction information (CDI), which indicates the direction of a channel direction vector, and a step of generating the precoding matrix based on the information on the error angle ? of the CDI, wherein the error angle ? of the CDI indicates the angle between the channel direction vector and a quantized channel direction vector, and includes at least one of a channel quantization error component, a channel feedback delay error component, and a channel estimation error component.
    Type: Application
    Filed: September 2, 2011
    Publication date: August 8, 2013
    Applicants: INDUSTRYACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, LG ELECTRONICS INC.
    Inventors: Ki Jun Kim, Sung Yoon Cho, Dong Ku Kim, Jin Young Jang, Byoung Hoon Kim, Hyuk Jin Chae
  • Patent number: 8443018
    Abstract: A mobile terminal and its unit conversion method are disclosed. When a unit conversion function is selected through a menu manipulation by a user, the selected unit conversion function is executed, and then, when a unit conversion factor for a unit conversion is selected, a reference unit related to the selected unit conversion factor is converted into two or more different units and the converted information is displayed in the form of a unit scale. The unit conversion factor includes volume, area, distance, speed, currency, mass, weight, dimension, and the like.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: May 14, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hye-Jin Choi, Seong-Yoon Cho, Min-Soo Park
  • Publication number: 20130043509
    Abstract: A non-volatile memory device according to an aspect of the present disclosure includes a substrate, a plurality of word lines stacked over the substrate and having a stepwise pattern, wherein the plurality of word lines each have a pad region, and a plurality of contact plugs coupled to the respective pad regions of the word lines, wherein a width of a pad region of a first one of the plurality of word lines is greater than a width of a pad region of a second word line lower than the first word line.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 21, 2013
    Inventors: Sung Yoon CHO, Hae Jung LEE, Byung Soo PARK, Eun Mi KIM
  • Publication number: 20120307929
    Abstract: A feedback method for interference alignment in wireless network having K transmitters and K receivers is provides. The method comprising: transmitting, performed by transmitter n?1, a precoding vector of transmitter n?1 (n is a integer between 2 and K?1) to receiver n+1; calculating, performed by the receiver n+1, a precoding vector of transmitter n using the precoding vector of transmitter n?1; and transmitting, performed by the receiver n+1, the precoding vector of transmitter n to transmitter n.
    Type: Application
    Filed: February 1, 2011
    Publication date: December 6, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Publication number: 20120302280
    Abstract: A power control method for interference alignment in wireless network having K transmitters and K receivers is provided. The method comprising: receiving, performed by receiver n (n is an integer, 1?n?K?1), a power indication signal of transmitter n+1 from the transmitter n+1; determining, performed by the receiver n, power of transmitter n; and transmitting, performed by the receiver n, a power indication signal of transmitter n to the transmitter n, wherein the power of transmitter n is determined based on a residual interference of the receiver n, and the power indication signal of transmitter n indicates a minimum transmission power or a maximum transmission power of transmitter n.
    Type: Application
    Filed: February 1, 2011
    Publication date: November 29, 2012
    Applicants: Industry Academic Cooperation Foundation Yonsei University, LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Publication number: 20120289267
    Abstract: A method for interference alignment in wireless network having 3 transmitters and 3 receivers which are equipped with M antennas is provided. The method comprising: transmitting, performed by each of the 3 transmitters, a pilot signal known to the 3 receivers; estimating, performed by each of the 3 receivers, each channel from transmitter; transmitting, performed by each of the 3 receivers, feedback information to target transmitter; and determining, performed by transmitter 2 and transmitter 3, a precoding vector; wherein a degree of freedom(DoF) of a transmitter 1 is (M/2??), a DoF of the transmitter 2 or the transmitter 3 is M/2.
    Type: Application
    Filed: February 1, 2011
    Publication date: November 15, 2012
    Applicants: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY, LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Kaibin Huang, Soon Suk Roh, Sung Yoon Cho, Hyuk Jin Chae, Byoung Hoon Kim, Dong Ku Kim
  • Patent number: 8260268
    Abstract: A method of controlling a mobile terminal, the method including displaying, via a display on the mobile terminal, a list of contacts included on the mobile terminal, selecting, via an input unit on the mobile terminal, a first contact included in the list of contacts, accessing, via a wireless communication unit, a web site corresponding to the first contact, displaying, on the display, a list of contacts of the first contact included on the web site corresponding to the first contact without displaying personal contact information for the list of contacts of the first contact, selecting, via the input unit, a second contact from the list of contacts of the first contact, displaying, via the display, a plurality of options for communicating with the second contact without displaying personal contact information of the second contact that is used for communicating with the second contact, selecting, via the input unit, one of the plurality of options for communicating with the second contact, and communicating
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: September 4, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hye Youn Cho, Byung Sang Yeo, Seong Yoon Cho, Yee Rang Yun, Yoo Mee Song, Dong Seok Lee
  • Patent number: 8138090
    Abstract: A method for forming fine patterns in a semiconductor device includes forming a first hard mask layer over an etch target layer, forming first etch mask patterns having negative slopes over the first hard mask layer, thereby forming a resultant structure, forming a first material layer for a second etch mask over the resultant structure, performing a planarization process until the first etch mask patterns are exposed to form second etch mask patterns filled in spaces between the spacers, removing the spacers, and etching the first hard mask layer and the etch target layer using the first etch mask patterns and the second etch mask patterns.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: March 20, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sung-Yoon Cho, Chang-Goo Lee
  • Patent number: 8124478
    Abstract: A method for fabricating a flash memory device includes forming a control gate having a hollow donut shape over an insulation layer formed over a substrate. The method also includes forming an inter-poly dielectric of a spacer shape on an inner wall of the control gate, filling a conductive layer for a floating gate between the spacer shaped inter-poly dielectrics, and forming an interlayer insulation layer over a resulting product formed with the conductive layer for a floating gate. The method further includes removing a center portion of the conductive layer for a floating gate to form an opening, forming a tunnel insulation layer on an inner face of the opening, and filling with a semiconductor layer the opening formed with the tunnel insulation layer to form an active region.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: February 28, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jung Woo Park, Sung Yoon Cho
  • Patent number: 8105950
    Abstract: A method for forming fine patterns in a semiconductor device includes forming a first hard mask layer and a second hard mask layer over an etch target layer, forming second hard mask patterns by etching the second hard mask layer, wherein an etching profile of the second hard mask layer has a positive slope, and etching the first hard mask layer and the etch target layer using the second hard mask patterns as an etch mask.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: January 31, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sung-Yoon Cho, Hye-Ran Kang