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).

  • Publication number: 20160081195
    Abstract: The present invention relates to a detach core substrate and a method of manufacturing a detach core substrate. In accordance with one embodiment of the present invention, there is proposed a detach core substrate that a conductive layer including a metal layer with an etching property different from copper is formed on a top surface and a bottom surface of an insulating layer formed thereon a surface roughness. At this time, the contact interface between the top surface and the bottom surface of the insulating layer is the detachment interface to be separated during the manufacture of the circuit board. In addition, a method of manufacturing the detach core substrate is proposed.
    Type: Application
    Filed: September 11, 2015
    Publication date: March 17, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Yoon CHO, Ki Hwan KIM, Gun Woo KIM, Sung Won JEONG, Gi Ho HAN, Da Hee KIM
  • Publication number: 20160021736
    Abstract: There are provided a printed circuit board and a method of manufacturing the same. The printed circuit board according to an exemplary embodiment of the present disclosure includes: a first insulating layer; a second insulating layer formed below the first insulating layer; a via pad formed on an upper surface of the second insulating layer and formed so as to be buried in the second insulating layer; a double via formed on an upper surface of the via pad, formed so as to penetrate through the first insulating layer, and including an auxiliary via and a first via; and a second via formed on a lower surface of the via pad and formed so as to penetrate through the second insulating layer.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 21, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Gi Ho HAN, Gun Woo KIM, Sung Won JEONG, Ki Hwan KIM, Da Hee KIM, Yong Yoon CHO
  • Publication number: 20150256292
    Abstract: A method and apparatus are provided for extracting interference signal information. The method includes demodulating control channel signals received from serving and adjacent cells; decoding the control channel signals received from the serving cell to extract control information; decoding the control channel signals received from the adjacent cell; extracting, at each subframe, from the decoded control channel signals received from the adjacent cell, a terminal ID of the adjacent cell; accumulating the extracted terminal IDs; filtering only a control channel signal from among the control channel signals received from the adjacent cell corresponding to a terminal ID having an accumulation count that is greater than or equal to a threshold; determining a reliability value of the filtered control channel signal; identifying the filtered control channel signal as a first interference signal, based on the reliability value; and extracting interference signal information based on the first interference signal.
    Type: Application
    Filed: March 6, 2015
    Publication date: September 10, 2015
    Inventors: Seong-Wook SONG, Dong-Hyun Kim, Sung-Yoon Cho, Jong-Han Lim
  • Patent number: 9112657
    Abstract: A method and apparatus are provided for extracting interference signal information. The method includes demodulating control channel signals received from serving and adjacent cells; decoding the control channel signals received from the serving cell to extract control information; decoding the control channel signals received from the adjacent cell; extracting, at each subframe, from the decoded control channel signals received from the adjacent cell, a terminal ID of the adjacent cell; accumulating the extracted terminal IDs; filtering only a control channel signal from among the control channel signals received from the adjacent cell corresponding to a terminal ID having an accumulation count that is greater than or equal to a threshold; determining a reliability value of the filtered control channel signal; identifying the filtered control channel signal as a first interference signal, based on the reliability value; and extracting interference signal information based on the first interference signal.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 18, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Seong-Wook Song, Dong-Hyun Kim, Sung-Yoon Cho, Jong-Han Lim
  • Publication number: 20150129291
    Abstract: Disclosed herein is a printed circuit board, including: a substrate; a seed layer formed on the substrate; and a circuit pattern formed on the seed layer and formed so that a diameter of an upper portion thereof and a width of a lower portion thereof are equal to each other or a diameter of the lower portion is larger than that of the upper portion. Therefore, the printed circuit board according to a preferred embodiment of the present invention forms the circuit pattern having the lower portion having the diameter larger than that of the upper portion, such that the electrical signal loss may be decreased and separation of the circuit pattern may be prevented, thereby improving whole reliability of the board.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Won JEONG, Yong Yoon Cho, Jung Hyun Park, Ki Hwan Kim, Da Hee Kim, Gi Ho Han
  • Publication number: 20150101857
    Abstract: There is provided a method for manufacturing a printed circuit board including: preparing a substrate having a conductive layer formed on at least a portion thereof; forming an insulating layer formed with an opening through which a portion of the conductive layer is exposed on the substrate; forming a plating seed layer on the insulating layer and the exposed conductive layer; forming an electroplating layer on the plating seed layer by overplating the plating seed layer; and etching the overplated portion in a lump to form a circuit layer in the opening.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 16, 2015
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Da Hee KIM, Jung Hyun PARK, Yong Yoon CHO, Sung Won JEONG, Gi Ho HAN, Ki Hwan KIM
  • Publication number: 20150061093
    Abstract: Disclosed herein is an interposer, including: an interposer substrate configured by stacking an insulating layer of one layer or more and interlayer connected through a via; a cavity penetrating through a center of the interposer substrate in a thickness direction; and a connection electrode having a post part which is disposed on at least one of an upper surface and a lower surface of the interposer substrate, thereby increasing electrical characteristics and reducing manufacturing cost and time.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Ki Hwan KIM, Jung Hyun PARK, Yong Yoon CHO, Sung Won JEONG, Da Hee KIM, Gi Ho HAN
  • Patent number: 8948300
    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, . . . ); determining ?i, a constant which has the transmission power of one transmission antenna from the rest of the transmission antennas, which do not have the transmission power as the maximum power per antenna, based on the Ti; and generating the ith precoding matrix Wi based on the Ti and the ?i.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: February 3, 2015
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Ki Jun Kim, Sung Yoon Cho, Dong Ku Kim, Jin Young Jang, Byoung Hoon Kim, Hyuk Jin Chae
  • Patent number: 8923435
    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: Grant
    Filed: September 2, 2011
    Date of Patent: December 30, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Ki Jun Kim, Sung Yoon Cho, Dong Ku Kim, Jin Young Jang, Byoung Hoon Kim, Hyuk Jin Chae
  • 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: 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: 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: 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