Patents by Inventor Woong Soo NA

Woong Soo NA 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: 20200344587
    Abstract: Disclosed herein is a method of operating an apparatus for providing a cell broadcast service. The operating method includes receiving, by a transmission device of a broadcaster, a cell broadcast service signal containing an emergency alert from a mobile carrier; converting, by the transmission device, the cell broadcast service signal into a public warning broadcast signal; and transmitting, by the transmission device, the public warning broadcast signal to a mobile switching center or a base station.
    Type: Application
    Filed: March 10, 2020
    Publication date: October 29, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Suk-Hee CHO, Byung-Jun BAE, Woong-Soo NA, Na-Yeon KIM, Dong-Joon CHOI
  • Patent number: 10122540
    Abstract: A wireless device and method for managing a multicast group within a wireless network are disclosed. The wireless device is included in a first multicast group in which data is directly sent between member devices or data is sent using hopping between the member devices. The wireless device includes a reception unit, a determination unit, and a transmission unit. The reception unit receives a join request for joining a second multicast group from a joining device that attempts to join the second multicast group. The determination unit extracts information about the second multicast group from the join request, and determines whether the second multicast group is identical with the first multicast group based on the information about the second multicast group. The transmission unit forwards the join request to another device or sends a response to the join request to the joining device based on a result of the determination.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: November 6, 2018
    Assignee: CHUNG-ANG UNIVERSITY-ACADEMY COOPERATION FOUNDATION
    Inventors: Sung Rae Cho, Jun Beom Hur, Woong Soo Na, Jeong Seok Yu, Tae Jin Kim, Hyoung Chel Bae, Yun Seong Lee, Ju Ho Lee, Zeynep Vatandas
  • Patent number: 9509453
    Abstract: The present invention discloses a method for providing reliable multicasting service in wireless network. The disclosed method groups a plurality of receiving nodes into a plurality of receiving groups, and decides the ACK transmission time point against each receiving group, which is not overlapped with other receiving groups. The receiving node contained in each receiving group transmits ACK against the received data frame at the ACK transmission time point, which is decided according to the corresponding receiving group.
    Type: Grant
    Filed: July 5, 2014
    Date of Patent: November 29, 2016
    Assignee: CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMY COOPERATION FOUNDATION
    Inventors: Sung Rae Cho, Woong Soo Na, Jeong Seok Yu, Hyoung Chul Bae, Tae Jin Kim, Ju Ho Lee, Zeynep Vatandas, Jun Beom Hur, Yun Seong Lee
  • Publication number: 20160080161
    Abstract: A wireless device and method for managing a multicast group within a wireless network are disclosed. The wireless device is included in a first multicast group in which data is directly sent between member devices or data is sent using hopping between the member devices. The wireless device includes a reception unit, a determination unit, and a transmission unit. The reception unit receives a join request for joining a second multicast group from a joining device that attempts to join the second multicast group. The determination unit extracts information about the second multicast group from the join request, and determines whether the second multicast group is identical with the first multicast group based on the information about the second multicast group. The transmission unit forwards the join request to another device or sends a response to the join request to the joining device based on a result of the determination.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Applicant: Chung-Ang University-Academy Cooperation Foundation
    Inventors: Sung Rae Cho, Jun Beom Hur, Woong Soo Na, Jeong Seok Yu, Tae Jin Kim, Hyoung Chel Bae, Yun Seong Lee, Ju Ho Lee, Zeynep Vatandas
  • Publication number: 20150055538
    Abstract: The present invention discloses a method for providing reliable multicasting service in wireless network. The disclosed method groups a plurality of receiving nodes into a plurality of receiving groups, and decides the ACK transmission time point against each receiving group, which is not overlapped with other receiving groups. The receiving node contained in each receiving group transmits ACK against the received data frame at the ACK transmission time point, which is decided according to the corresponding receiving group.
    Type: Application
    Filed: July 5, 2014
    Publication date: February 26, 2015
    Inventors: Sung Rae CHO, Woong Soo NA, Jeong Seok YU, Hyoung Chul BAE, Tae Jin KIM, Ju Ho LEE, Zeynep VATANDAS, Jun Beom HUR, Yun Seong LEE