Patents by Inventor Seong-Hyeon Chae

Seong-Hyeon Chae 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: 11978759
    Abstract: A light emitting diode (LED) stack for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, a first color filter interposed between the first LED stack and the second LED stack, and a second color filter interposed between the second LED stack and the third LED stack, in which the second LED stack and the third LED stack are configured to transmit light generated from the first LED stack to the outside, and the third LED stack is configured to transmit light generated from the second LED stack to the outside.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: May 7, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: 11973104
    Abstract: A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a first portion of the first LED sub-unit, and a third LED sub-unit disposed on a second portion of the second LED sub-unit, in which each of the first, second, and third LED sub-units includes a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, light generated from the first LED sub-unit is configured to be emitted outside of the light emitting diode pixel through a third portion of the first LED sub-unit different from the first portion, and light generated from the second LED sub-unit is configured to be emitted outside of the light emitting diode pixel through a fourth portion of the second LED sub-unit different from the second portion.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: April 30, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Chung Hoon Lee, Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee
  • Publication number: 20240113272
    Abstract: A method of mounting light emitting devices on a mounting board including steps of forming the light emitting devices spaced apart from one another on a first surface of a substrate, forming a mask pattern on a second surface of the substrate opposite to the first surface, the mask pattern exposing regions of the second surface of the substrate that overlap the light emitting devices to be separated from the substrate, and performing a selective laser lift-off process using the mask pattern to mount the light emitting devices to the mounting board.
    Type: Application
    Filed: December 5, 2023
    Publication date: April 4, 2024
    Applicant: Seoul Viosys Co., Ltd.
    Inventors: Seong Gyu JANG, Ho Joon LEE, Jong Hyeon CHAE
  • Patent number: 11935912
    Abstract: A display apparatus including a thin film transistor (TFT) substrate; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit; first, second, third, and fourth electrode pads disposed between the TFT substrate and the first LED sub-unit; and connectors connecting the first, second, and third LED sub-units to a respective one of the electrode pads, in which the first, second, and third sub-units are configured to be independently driven; light generated from the first LED sub-unit is emitted to the outside of the display apparatus by passing through the second and third LED sub-units; light generated from the second LED sub-unit is emitted to the outside of the display apparatus by passing through the third LED sub-unit; and at least one of the connectors includes a first portion electrically connecting a first surface of the first LED sub-unit to the second electrode pad.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: March 19, 2024
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee, Chang Yeon Kim, Chung Hoon Lee
  • Patent number: 11923348
    Abstract: A light emitting diode pixel for a display includes a first subpixel including a first LED sub-unit, a second subpixel including a second LED sub-unit, a third subpixel including a third LED sub-unit, and a bonding layer overlapping the first, second, and third subpixels, in which each of the first, second, and third LED sub-units includes a first type of semiconductor layer and a second type of semiconductor layer, each of the first, second, and third LED sub-units is disposed on a different plane, and light generated from the second subpixel is configured to be emitted to an outside of the light emitting diode pixel by passing through a lesser number of LED sub-units than light generated from the first subpixel and emitted to the outside.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: March 5, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Seong Gyu Jang, Ho Joon Lee, Jong Hyeon Chae, Chung Hoon Lee
  • Patent number: 9226281
    Abstract: A method, a transmitter and a receiver for generating a resource allocation indication message are provided. The method includes, if M serving zones provide one of at least two service types, mapping each of one of N and N?1 resource units to a resource mapping identity represented by one bit, and generating the resource allocation indication message using at least one resource mapping identity, wherein the resource allocation indication message indicates the allocation of N resource units numbered for M serving zones, wherein the M is an integer equal to or larger than 1, and wherein the N is an integer equal to or larger than M.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: December 29, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hai Wang, Qi Wu, Seong-Hyeon Chae, Xufeng Zheng
  • Patent number: 9160500
    Abstract: A method and apparatus for transmitting and receiving resource allocation information in a communication system are provided, in which a Base Station (BS) transmits resource allocation information including a folding bitmap and a Zone Flag (ZF). The folding bitmap provides zone configuration information about zones included in a subframe and the ZF indicates whether a last zone of the zones is allocated as a first service zone or a second service zone. The first service zone carries data for a first service, the second service zone carries data for a second service, and each of the first and second services zones includes at least one resource unit.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Hyeon Chae, Hee-Won Kang, Jae-Jeong Shim, Tae-Young Kim, Young-Bo Cho
  • Patent number: 9063216
    Abstract: A method and an apparatus for providing a location based service in a wireless communication system are provided. A method of a Base Station (BS) for a Location Based Service (LBS) in a wireless communication system includes allocating identifiers to a plurality of transmission devices in a service coverage area of the BS, generating a Reference Signal (RS) including the identifier of the corresponding transmission device and an identifier of the BS with respect to each of the transmission devices, and transmitting the RS generated for each of the transmission devices, to a Mobile Station (MS) via the corresponding transmission device.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: June 23, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hee Won, Sang-Heon Kim, Seong-Hyeon Chae, Hee-Won Kang
  • Patent number: 8588790
    Abstract: A Handover apparatus and method of a Mobile Station (MS) in a wireless communication system in which at least one small cell resides in a macro cell includes, when entering a neighboring small cell, checking a movement speed of the MS. The method also includes determining whether to hand over to the small cell by taking into account the movement speed of the MS. When it is determined not to hand over to the small cell, that MS transmits small cell penetration information to a macro Base Station (BS); allocates a macro only resource from the macro BS; and communicates with the macro BS in the small cell using the macro only resource allocated from the macro BS.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: November 19, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Bo Cho, Jae-Hee Cho, Byung-Wook Jun, Hee-Won Kang, Seong-Hyeon Chae, Si-Hyun Park
  • Patent number: 8478302
    Abstract: A method, an Advanced Base Station (ABS) and an Advanced Mobile Station (AMS) for transmitting Location Based Service (LBS) resource allocation information by an ABS in a mobile communication system are provided. The ABS transmits LBS resource allocation information including LBS zone configuration information representing an LBS zone transmission period. The LBS zone configuration information includes at least one of first information indicating that LBS zone transmission is switched off, second information indicating that the LBS zone transmission period corresponds to a first number of super frames, third information indicating that the LBS zone transmission period corresponds to a second number of super frames, and fourth information indicating that the LBS zone transmission period corresponds to a third number of super frames.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: July 2, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Hyeon Chae, Sang-Heon Kim, Hee-Won Kang, Jin-Hee Won
  • Patent number: 8406193
    Abstract: An apparatus and method for transmitting/receiving system information in a wireless communication system with a hierarchical cell structure are provided. A method for transmitting system information in a micro Base Station (BS) in a wireless communication system in which at least one micro cell exists within a macro cell includes transmitting first system information to a Mobile Station (MS) communicating with a macro BS within a micro cell and an MS communicating with a micro BS within the micro cell, and transmitting second system information to the MS communicating with the micro BS within the micro cell.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: March 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Bo Cho, Seong-Hyeon Chae, Jae-Hee Cho, Hee-Won Kang, Chang-Yoon Oh, Byung-Wook Jun
  • Patent number: 8345622
    Abstract: An apparatus and method for transmitting MAP by a base station in a wireless mobile communication system using a frame that includes a plurality of mini frames occupying a specific time period, each of the mini frames including a plurality of Resource Blocks (RBs) occupying a specific frequency band are provided. A number of RBs to be occupied by a data burst to be transmitted is determined. A first variable indicative of a number of mini frames to be occupied by the data burst is determined based on a resource amount corresponding to the number of RBs and an available resource amount of the mini frame. A second variable is determined based on the number of RBs and the first variable. MAP is transmitted that includes the first variable, the second variable, and information indicating RBs where a resource is allocated in a mini frame first located in a time domain among the mini frames to be occupied by the data burst.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: January 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Bo Cho, Hee-Won Kang, Seong-Hyeon Chae
  • Patent number: 8335957
    Abstract: An apparatus is capable of allocating an ACK/NACK channel in a wireless communication system. The apparatus performs a method for allocating the ACK/NACK channel at a base station that includes generating ACK/NACK channel allocation information of a packet transmitted to a terminal; inserting the ACK/NACK channel allocation information into the packet using a padding area indicative of a size difference of data carried by the packet and an Automatic Repeat Request (ARQ) block; and transmitting the packet comprising the inserted ACK/NACK channel allocation information to a terminal to service.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: December 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Hyeon Chae, Se-Ho Kim, Young-Bo Cho, Hee-Won Kang
  • Patent number: 8316270
    Abstract: An apparatus and a method for supporting an HARQ scheme in a wireless communication system are provided. In a method for operating a base station, whether a resource used for a system of a different standard and a resource used for one of an HARQ reply and an HARQ retransmission packet by a synchronous HARQ scheme collide with each other is estimated. A collision packet ID is allocated to an HARQ subburst corresponding to one of an HARQ reply and an HARQ retransmission packet estimated to collide, and an offset of the one of the HARQ reply and the HARQ retransmission packet is changed. A MAP message including at least one of the collision packet ID, and changed offset information is generated. The MAP message is transmitted.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: November 20, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-Hyeon Chae, Hee-Won Kang, Young-Bo Cho
  • Publication number: 20120289273
    Abstract: A method, a transmitter and a receiver for generating a resource allocation indication message are provided. The method includes, if M serving zones provide one of at least two service types, mapping each of one of N and N?1 resource units to a resource mapping identity represented by one bit, and generating the resource allocation indication message using at least one resource mapping identity, wherein the resource allocation indication message indicates the allocation of N resource units numbered for M serving zones, wherein the M is an integer equal to or larger than 1, and wherein the N is an integer equal to or larger than M.
    Type: Application
    Filed: December 23, 2010
    Publication date: November 15, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Hai Wang, Qi Wu, Seong-Hyeon Chae, Xufeng Zheng
  • Patent number: 8310987
    Abstract: An apparatus and method for notifying a change of system control information in a wireless communication system are provided. The method includes, changing a Group Configuration Change Counter (GCCC) and upon change of a Secondary-Super Frame Header/Sub-Packet1 (S-SFH/SP1) whose transmission period is changeable within a range of one or more super frames, changing the GCCC and information representing the change of the common control message upon change of at least one common control message, and transmitting the GCCC and the information representing the change of the at least one common control message.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: November 13, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Bo Cho, Mi-Hyun Lee, Seong-Hyeon Chae, Hee-Won Kang, Young-Bin Chang, Ki-Chun Cho
  • Publication number: 20120040695
    Abstract: A method and an apparatus for providing a location based service in a wireless communication system are provided. A method of a Base Station (BS) for a Location Based Service (LBS) in a wireless communication system includes allocating identifiers to a plurality of transmission devices in a service coverage area of the BS, generating a Reference Signal (RS) including the identifier of the corresponding transmission device and an identifier of the BS with respect to each of the transmission devices, and transmitting the RS generated for each of the transmission devices, to a Mobile Station (MS) via the corresponding transmission device.
    Type: Application
    Filed: August 16, 2011
    Publication date: February 16, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Jin-Hee WON, Sang-Heon KIM, Seong-Hyeon CHAE, Hee-Won KANG
  • Publication number: 20120009945
    Abstract: A method, an Advanced Base Station (ABS) and an Advanced Mobile Station (AMS) for transmitting Location Based Service (LBS) resource allocation information by an ABS in a mobile communication system are provided. The ABS transmits LBS resource allocation information including LBS zone configuration information representing an LBS zone transmission period. The LBS zone configuration information includes at least one of first information indicating that LBS zone transmission is switched off, second information indicating that the LBS zone transmission period corresponds to a first number of super frames, third information indicating that the LBS zone transmission period corresponds to a second number of super frames, and fourth information indicating that the LBS zone transmission period corresponds to a third number of super frames.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Seong-Hyeon CHAE, Sang-Heon KIM, Hee-Won KANG, Jin-Hee WON
  • Publication number: 20110150108
    Abstract: A method and apparatus for transmitting and receiving resource allocation information in a communication system are provided, in which a Base Station (BS) transmits resource allocation information including a folding bitmap and a Zone Flag (ZF). The folding bitmap provides zone configuration information about zones included in a subframe and the ZF indicates whether a last zone of the zones is allocated as a first service zone or a second service zone. The first service zone carries data for a first service, the second service zone carries data for a second service, and each of the first and second services zones includes at least one resource unit.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 23, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Seong-Hyeon CHAE, Hee-Won KANG, Jae-Jeong SHIM, Tae-Young KIM, Young-Bo CHO
  • Patent number: RE46709
    Abstract: A method and an apparatus for providing a location based service in a wireless communication system are provided. A method of a Base Station (BS) for a Location Based Service (LBS) in a wireless communication system includes allocating identifiers to a plurality of transmission devices in a service coverage area of the BS, generating a Reference Signal (RS) including the identifier of the corresponding transmission device and an identifier of the BS with respect to each of the transmission devices, and transmitting the RS generated for each of the transmission devices, to a Mobile Station (MS) via the corresponding transmission device.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: February 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Hee Won, Sang-Heon Kim, Seong-Hyeon Chae, Hee-Won Kang