Patents by Inventor Chang-woo Seo

Chang-woo Seo 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: 20220010402
    Abstract: A grain-oriented electrical steel sheet according to an embodiment of the present invention includes: in wt %, Si at 1.0 to 7.0%, Mn at 0.5% or less (excluding 0%), Al at 0.005% or less (excluding 0%), S at 0.0055% or less (excluding 0%), one or more of Ba and Y at 0.005 to 0.5%, one or more of Sn at 0.02 to 0.15%, Sb at 0.01 to 0.08%, and Ni at 0.02 to 0.5%, and the balance of Fe and inevitable impurities.
    Type: Application
    Filed: November 28, 2019
    Publication date: January 13, 2022
    Inventors: Hyung Don JOO, Kyung-Jun KO, Chang Soo PARK, Jae Kyoum KIM, Sang-Woo LEE, Jin-Wook SEO
  • Publication number: 20210396398
    Abstract: A home appliance comprises a housing including an inlet, a first outlet formed in the housing to discharge air introduced through the inlet, a second outlet disposed adjacent to the first outlet, a fan assembly including a first fan configured to discharge air toward the first outlet, and a second fan configured to discharge air toward the second outlet, and a stator provided to guide air, which is discharged from the first fan, to the first outlet.
    Type: Application
    Filed: March 15, 2019
    Publication date: December 23, 2021
    Inventors: Seong Hyun YOON, Jin Baek KIM, Yeon Je KIM, Eung Ryeol SEO, Chang-Woo JUNG, Dong Gi HAN
  • Publication number: 20210174986
    Abstract: The present invention relates to an ultra large area nanowire transparent electrode, including a transparent insulating substrate, and a metal nanowire network, wherein Rm denoting an average sheet resistance of a nanowire transparent electrode having a width of 10 cm and a length of 2 m is 55 ?/sq., or less, and each sheet resistance in 500 divided regions defined by evenly dividing the entire region of the nanowire transparent electrode having a width of 10 cm and a length of 2 m into an area of 2 cm×2 cm satisfies 0.5Rm to 1.5Rm.
    Type: Application
    Filed: May 25, 2018
    Publication date: June 10, 2021
    Inventors: Sang Ho KIM, Chang Woo SEO, Jin E LEE
  • Patent number: 10535792
    Abstract: A preparation method for a transparent conductor, according to the present invention, comprises the steps of: a) preparing a laminate which has a transparent polymer layer and a conductive network sequentially laminated on a base material; and b) sinking the conductive network into the transparent polymer layer by applying energy to the laminate.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 14, 2020
    Assignee: N&B CO., LTD.
    Inventors: Chang Woo Seo, Chang-Wan Bae
  • Patent number: 10302006
    Abstract: An intake apparatus for an engine is provided. The intake apparatus includes an intake manifold configured to draw intake air thereinto, a cylinder head having an intake port through which intake air drawn from the intake manifold is supplied into a cylinder of the engine and a flow control valve disposed in the intake manifold and configured to control a flow direction of intake air to be drawn from the intake manifold into the cylinder head to generate a circular flow in the intake air. A port plate is configured to reinforce the circular flow of intake air that is generated in the flow control valve and a plate support is coupled with the port plate and coupled between the intake manifold and the cylinder head to enable the port plate to be inserted into the intake port.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: May 28, 2019
    Assignee: HYUNDAI KEFICO CORPORATION
    Inventors: Chang Woo Seo, Suk Young Kim, Young Jin Kim, Ji Sun Kim, Ba Ro Han
  • Publication number: 20180142609
    Abstract: An intake apparatus for an engine is provided. The intake apparatus includes an intake manifold configured to draw intake air thereinto, a cylinder head having an intake port through which intake air drawn from the intake manifold is supplied into a cylinder of the engine and a flow control valve disposed in the intake manifold and configured to control a flow direction of intake air to be drawn from the intake manifold into the cylinder head to generate a circular flow in the intake air. A port plate is configured to reinforce the circular flow of intake air that is generated in the flow control valve and a plate support is coupled with the port plate and coupled between the intake manifold and the cylinder head to enable the port plate to be inserted into the intake port.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 24, 2018
    Inventors: Chang Woo Seo, Suk Young Kim, Young Jin Kim, Ji Sun Kim, Ba Ro Han
  • Publication number: 20170345965
    Abstract: A preparation method for a transparent conductor, according to the present invention, comprises the steps of: a) preparing a laminate which has a transparent polymer layer and a conductive network sequentially laminated on a base material; and b) sinking the conductive network into the transparent polymer layer by applying energy to the laminate.
    Type: Application
    Filed: October 28, 2015
    Publication date: November 30, 2017
    Inventors: Chang Woo SEO, Chang-Wan BAE
  • Publication number: 20170034403
    Abstract: An imaging device configured to image a moving object includes a sensing unit configured to obtain location information of the imaging device; a processor configured to determine a moving trajectory of the moving object using the location information; an interface configured to output a first image representing the moving trajectory; and an image processor configured to generate the first image and a second image representing the moving object based on the moving trajectory.
    Type: Application
    Filed: November 16, 2015
    Publication date: February 2, 2017
    Inventors: Chang-woo SEO, Jae-ho LEE, Do-han KIM
  • Patent number: 9112593
    Abstract: An apparatus and method for compensating for a timing offset in a spread spectrum system which perform an oversampling of respective symbols to obtain a plurality of samples, estimate a chip clock timing offset and a symbol clock timing offset from the plurality of samples, and compensate for the chip clock timing offset and the symbol clock timing offset.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 18, 2015
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jin Soup Joung, Sung Chan Choi, Yong Hoon Lim, Chang Woo Seo
  • Patent number: 8259655
    Abstract: In a medium access method for contention and non-contention, a poll number for stations, or wireless terminals for communication, is managed by a base station so as to guarantee smooth traffic and improved Quality of Service (QoS). A first group of stations is provided for the non-contention, and a second group of stations is provided for the contention. The method includes (a) preparing a contention-free access message attempting access of the first group, (b) detecting a transmission time of a contention access message attempting access of the second group, (c) embedding the contention-free access message in the contention access message so as to transmit the embedded message to at least one of the first and second groups, and (d) receiving the contention access message, in which the contention-free access message is embedded, at the at least one of the first and second groups, and endowing any one of the first and second groups with a priority to attempt access to a medium in turn.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mi-Ra Choe, Chang-Woo Seo, Rae-Jin Uh, Sung-Guk Na
  • Patent number: 8131908
    Abstract: Disclosed is a wireless universal serial bus system that includes a device; a first host communicating with the device according to a wireless universal serial bus protocol; and a second host communicating with the device according to a wireless universal serial bus protocol, wherein when the first host receives a beacon from the second host, the first host provides new host information read out from the beacon to the device.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: March 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Woo Seo, Jun-Seo Lee
  • Patent number: 8036596
    Abstract: An apparatus for generating a device address of a wireless local network includes an alien beacon determination unit which determines whether a received beacon is an alien beacon; a zone identity management unit which compares an alien zone identity included in the received beacon with a zone identity of a corresponding device if the received beacon is the alien beacon, and regenerates the zone identity of the corresponding device if the alien zone identity is identical to the zone identity of the corresponding device; and a device address generation unit which regenerates a device address of the corresponding device if a device address of an alien beacon group is identical to the device address of the corresponding device.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Woo Seo, Seung Hwan Oh, Dong Won Kwak
  • Patent number: 7970356
    Abstract: A terminal location estimation method in a wireless communication system in which an access point (AP) provides an access service to a plurality of terminals includes defining a plurality of beam spaces around the AP through space multiplexing; scheduling the beam spaces according to a predetermined pattern; simultaneously forming a beam in at least one beam space; and detecting the existence and location of a terminal according to whether a response message in response to the formed beam is received. Accordingly, an AP forms beams in a predetermined scheduling pattern, and each of the terminals detecting the beams registers its location by informing the AP that each of the terminals exists in a relevant beam area, and thus, a location of each of the terminals can be estimated without using a complex DOA algorithm.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: June 28, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Woo Seo, Jin-Youn Cho, Dong-Jun Lee, Kyung-Hun Jang, Gang-Youl Yu
  • Publication number: 20110153904
    Abstract: Disclosed is a wireless universal serial bus system that includes a device; a first host communicating with the device according to a wireless universal serial bus protocol; and a second host communicating with the device according to a wireless universal serial bus protocol, wherein when the first host receives a beacon from the second host, the first host provides new host information read out from the beacon to the device.
    Type: Application
    Filed: March 2, 2011
    Publication date: June 23, 2011
    Inventors: Chang-Woo Seo, Jun-Seo Lee
  • Patent number: 7953030
    Abstract: A method and apparatus controls power consumption of stations having a hierarchical structure when the stations transmit and receive a wireless signal to and from one another on a CSMA/CA wireless LAN. The controlling involves extracting information on frame transmission speed and transmission period information on first and second layers of the hierarchical structure from the wireless signal; determining a power-controlled period for each of the first and second layers based on the extracted information; and reducing the power consumption of the first and second layers by switching a current mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-woo Seo, Jin-youn Cho, Kyung-hun Jang, Jin-bong Chang, Hyo-sun Hwang, Sang-hyun Woo
  • Patent number: 7921254
    Abstract: Disclosed is a wireless universal serial bus system that includes a device; a first host communicating with the device according to a wireless universal serial bus protocol; and a second host communicating with the device according to a wireless universal serial bus protocol, wherein when the first host receives a beacon from the second host, the first host provides new host information read out from the beacon to the device.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Woo Seo, Jun-Seo Lee
  • Patent number: 7822902
    Abstract: A wireless universal serial bus system (WUSB) includes a device, a first host, and a second host. The first host communicates with the device through a first superframe according to a wireless USB protocol. The first host sets a host-adding bit in the first superframe when the second host transfers a second superframe to the first host according to the wireless USB protocol to enable communication between the second host and the device.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: October 26, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hwan Oh, Yon-Suk Kim, Chang-Woo Seo, Ju-Hyun Jung
  • Patent number: 7643790
    Abstract: Local communication system in wireless communication system includes a main wireless terminal negotiating with each of the peripheral wireless terminals during a time period for which a frame will be transmitted, generating a schedule map including negotiated time information and a transmission sequence of each of the peripheral wireless terminals, and transmitting the generated schedule map to all peripheral wireless terminals; and the peripheral wireless terminals storing the schedule map received from the main wireless terminal, and performing communication with the main wireless terminal according to the sequence determined in the schedule map for the negotiated time period.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung-Hun Jang, Chang-Woo Seo, Jin-Bong Cahng, Jin-Youn Cho, Hyo-Sun Hwang
  • Patent number: 7593375
    Abstract: A Medium Access Control (MAC) apparatus and method for use in a channel overlay network of a wireless access system. The wireless access system, which is based on a multi-carrier, includes a plurality of physical modules for receiving signals from a plurality of terminals, a plurality of MAC (Medium Access Control) modules for processing the signals received via the physical modules while being classified according to predetermined traffic classes, and a controller connected to the MAC modules for integratedly managing the MAC modules. The MAC apparatus includes an additional MAC module used for a control channel and a plurality of MAC modules for supporting various QoS traffic data according to individual classes, thereby improving scheduling complexity in a MAC layer.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: September 22, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Woo Seo, Kyung-Hun Jang, Jin-Youn Cho, Hyo-Sun Hwang
  • Publication number: 20090204737
    Abstract: Disclosed is a wireless universal serial bus system that includes a device; a first host communicating with the device according to a wireless universal serial bus protocol; and a second host communicating with the device according to a wireless universal serial bus protocol, wherein when the first host receives a beacon from the second host, the first host provides new host information read out from the beacon to the device.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 13, 2009
    Inventors: Chang-Woo Seo, Jun-Seo Lee