Patents by Inventor Doo-seop Eom

Doo-seop Eom 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: 9801134
    Abstract: A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section. The bidirectional event transmission sensor network has a structure of a super frame that includes at least one standby slot (SS) including the uplink section and the downlink section.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 24, 2017
    Assignees: Samsung Electronics Co., Ltd., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Hyo Sun Hwang, Chi Sung Bae, Seung Ku Kim, Jae Ho Lee, Doo Seop Eom
  • Publication number: 20150327177
    Abstract: A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section. The bidirectional event transmission sensor network has a structure of a super frame that includes at least one standby slot (SS) including the uplink section and the downlink section.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 12, 2015
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Hyo Sun HWANG, Chi Sung BAE, Seung Ku KIM, Jae Ho LEE, Doo Seop EOM
  • Patent number: 9119149
    Abstract: A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section. The bidirectional event transmission sensor network has a structure of a super frame that includes at least one standby slot (SS) including the uplink section and the downlink section.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Sun Hwang, Chi Sung Bae, Seung Ku Kim, Jae Ho Lee, Doo Seop Eom
  • Patent number: 8588699
    Abstract: A method of avoiding a channel interference in a single channel sensor network, includes periodically measuring an energy of a channel used by at least one node included in the sensor network; exchanging the measured energy of the channel with a neighbor node of the at least one node; receiving energy of all nodes of the sensor network and determining if there is an interference, by a coordinator node, which is a highest node of the at least one node; and when it is determined that there is an interference, switching a channel influenced by the interference to a channel which has been scanned by the coordinator node and is not influenced by the interference, thereby avoiding an influence of the interference.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: November 19, 2013
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Yong-Suk Park, Jeong-Sik In, Soon-Seob Han, Doo-Seop Eom, Jin-Woo Kim
  • Patent number: 8341079
    Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: December 25, 2012
    Assignees: Pantech Co., Ltd., Secubay Corp.
    Inventors: Young-Cheol Shin, Chang-Hwan Oh, Hyuck-Jin Kwon, Doo-Seop Eom
  • Publication number: 20120243454
    Abstract: A communication method of a coordinator in a bidirectional event transmission sensor network comprising a sensor node and the coordinator is provided. The method includes sensing, in an uplink section, whether a signal having energy greater than or equal to a predetermined magnitude is received, the signal indicating occurrence of an uplink event detected by the sensor node, and transmitting, to the sensor node in a downlink section, a synchronization packet that is used for receiving the uplink event or for transmitting a downlink event in response to the coordinator detecting the downlink event or sensing the signal having energy greater than or equal to the predetermined magnitude in the uplink section.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 27, 2012
    Inventors: Hyo Sun Hwang, Chi Sung Bae, Seung Ku Kim, Jae Ho Lee, Doo Seop Eom
  • Publication number: 20120217295
    Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.
    Type: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicants: SECUBAY CORP., PANTECH CO., LTD.
    Inventors: Young-Cheol SHIN, Chang-Hwan OH, Hyuck-Jin KWON, Doo-Seop EOM
  • Publication number: 20110111701
    Abstract: A method of avoiding a channel interference in a single channel sensor network, includes periodically measuring an energy of a channel used by at least one node included in the sensor network; exchanging the measured energy of the channel with a neighbor node of the at least one node; receiving energy of all nodes of the sensor network and determining if there is an interference, by a coordinator node, which is a highest node of the at least one node; and when it is determined that there is an interference, switching a channel influenced by the interference to a channel which has been scanned by the coordinator node and is not influenced by the interference, thereby avoiding an influence of the interference.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 12, 2011
    Applicants: Samsung Electronics Co., Ltd., Kores University Research and Business Foundation
    Inventors: Yong-Suk PARK, Jeong-Sik In, Soon-Seob Han, Doo-Seop Eom, Jin-Woo Kim
  • Publication number: 20110110255
    Abstract: A method of avoiding channel interference in a multi-channel sensor network, includes periodically measuring an energy of a channel used by at least one node included in the sensor network; determining if the energy of the channel has a value larger than a first preset threshold; when the energy of the channel has a value larger than the first preset threshold, concluding that the channel is influenced by an interference from an interference source, and reporting it to a parent node of the at least one node; and switching the channel influenced by the interference to a new channel, which is not influenced by an interference, thereby avoiding an influence of the interference.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 12, 2011
    Applicants: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Yong-Suk PARK, Jeong-Sik In, Soon-Seob Han, Doo-Seop Eom, Jin-Woo Kim
  • Patent number: 7848752
    Abstract: Disclosed is a handoff processing method capable of restarting fast communications. The handoff processing method stores in a handoff buffer Host Control Interface (HCI) data and transmission data upon communications in a state where an Access Point is interlinked with an external device. Further, the method forwards the HCI data and the transmission data buffered in the handoff buffer to a new Access Point (AP) transmitting a message indicating setup completion of a connection if the message indicating setup completion of a connection with the external device is transmitted from the new AP after a handoff occurs as the external device moves. Accordingly, throughputs are not lowered despite handoff occurrences in poor wireless channel environments, so that service quality can be enhanced.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: December 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-suk Kim, Won-yong Yoon, Kyun-hyon Tchah, Doo-seop Eom, Won-hee Lee, Tae-jin Lee, Yang-ick Joo
  • Publication number: 20100262540
    Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.
    Type: Application
    Filed: May 10, 2010
    Publication date: October 14, 2010
    Applicants: Pantech Co., Ltd., Secubay Corp.
    Inventors: Young-Cheol SHIN, Chang-Hwan Oh, Hyuck-Jin Kwon, Doo-Seop Eom
  • Publication number: 20100262543
    Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.
    Type: Application
    Filed: May 10, 2010
    Publication date: October 14, 2010
    Applicants: Pantech Co., Ltd., Secubay Corp.
    Inventors: Young-Cheol SHIN, Chang-Hwan Oh, Hyuck-Jin Kwon, Doo-Seop Eom
  • Patent number: 7739190
    Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a LCD barcode displayed on a mobile terminal, thereby simply performing member identification using the LCD barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: June 15, 2010
    Assignees: Pantech & Curitel Communications, Inc., Secubay Corp.
    Inventors: Young-Cheol Shin, Chang-Hwan Oh, Hyuck-Jin Kwon, Doo-Seop Eom
  • Patent number: 7505778
    Abstract: A wireless communication method according to the present invention, in a Bluetooth device connected to multiple piconets and operating in a scatter mode, includes steps of (a) establishing credit values by link for the multiple piconets, and the total sum of the credit values by link as a temporary account value; (b) updating the credit values by link and the temporary account value every slot based on a predetermined manner; (c) performing communications through a link selected based on a comparison result of the credit values by link at each Presence Point(PP); and (d) unevenly redistributing predetermined credit values based on characteristics by link and returning to the step (b) in one of the two cases in which the communications are interrupted with a POLL_NULL sequence and the temporary account value becomes the same as the total number, n, of links.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: March 17, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyun-hyon Tchan, Ki-soo Chang, Doo-seop Eom, Tae-jin Lee, Jong-hun Park, Jong-soo Oh, Yang-ick Joo
  • Patent number: 7499376
    Abstract: Provided are a system and method for position awareness that can be used indoors in a large-scale environment and can minimize generation of radio frequency (RF) and ultrasonic waves in a wireless sensor network including low-priced sensor nodes capable of precise position measurement, thus improving energy efficiency by reducing unnecessary power consumption. The method includes the steps of: (a) calculating initial position coordinates using beacon information received from adjacent beacons through a broadcast beacon solicitation signal, sending a synchronization signal to the beacons, and synchronizing the beacons; (b) receiving ultrasonic waves generated from the adjacent beacons activated by a broadcast start message, and calculating position coordinates; and (c) when the calculated position coordinates correspond to a predetermined hand-off threshold position, transmitting a hand-off process message to a newly activated beacon, and executing a hand-off process routine.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: March 3, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jin Won Kim, Seung Min Park, Il Gon Park, Kwang Yong Lee, Doo Seop Eom, Won Hee Lee, Woo Young Lee, Tae Young Kim
  • Patent number: 7369565
    Abstract: A wireless communication system has a queue information search unit for searching a queue-status information provided in a packet unit, a communication priority decision unit for deciding communication priority of external devices based on the queue-status information, giving a higher priority to the external device having a greater number of packets in queues, a communication initiation unit for initiating a communication with the external devices according to the communication priority, a counter for counting the number of times that the communication is initiated for each of the external devices, and a comparator for comparing a counter value of a first external device that corresponds to a transmitted data with a counter value of a second external device that has a maximum counter value. Accordingly, when the wireless communication device transmits and receives data with respect to the plural wireless communication devices, both high throughput and high fairness can be guaranteed.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: May 6, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-jin Lee, Kyun-hyon Tchah, Ki-soo Chang, Oh-seok Kwon, Yang-ick Joo, Jong-soo Oh, Yong-suk Kim, Doo-seop Eom
  • Patent number: 7289821
    Abstract: A wireless communication system includes a queue status detection unit for detecting the amount of unit data being used for communication between a plurality of external devices, and deciding a class parameter T of one of the external devices; a counter for counting the number of giving-away times of the external device based on the giving-away of communication opportunities to communicate with the plurality of external devices, and deciding a delay parameter D of an external device; a communication priority decision unit for calculating priority values P of an external device by using a class parameter and a delay parameter, and determining an external device having a priority out of the plurality of external devices based on the priority values; and a communication initiation unit for initiating data communications with the determined external device having the priority. Accordingly, a communication method considering both throughput and fairness can be obtained.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: October 30, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-suk Kim, Won-yong Yoon, Tae-jin Lee, Doo-seop Eom, Yang-ick Joo, Kyun-hyon Tcha, Jong-soo Oh
  • Publication number: 20040177038
    Abstract: A wireless communication method according to the present invention, in a Bluetooth device connected to multiple piconets and operating in a scatter mode, includes steps of (a) establishing credit values by link for the multiple piconets, and the total sum of the credit values by link as a temporary account value; (b) updating the credit values by link and the temporary account value every slot based on a predetermined manner; (c) performing communications through a link selected based on a comparison result of the credit values by link at each Presence Point(PP); and (d) unevenly redistributing predetermined credit values based on characteristics by link and returning to the step (b) in one of the two cases in which the communications are interrupted with a POLL_NULL sequence and the temporary account value becomes the same as the total number, n, of links.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 9, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyun-hyon Tchan, Ki-soo Chang, Doo-seop Eom, Tae-jin Lee, Jong-hun Park, Jong-soo Oh, Yang-ick Joo
  • Publication number: 20040166883
    Abstract: A wireless communication system includes a queue status detection unit for detecting the amount of unit data being used for communication between a plurality of external devices, and deciding a class parameter T of one of the external devices; a counter for counting the number of giving-away times of the external device based on the giving-away of communication opportunities to communicate with the plurality of external devices, and deciding a delay parameter D of an external device; a communication priority decision unit for calculating priority values P of an external device by using a class parameter and a delay parameter, and determining an external device having a priority out of the plurality of external devices based on the priority values; and a communication initiation unit for initiating data communications with the determined external device having the priority. Accordingly, a communication method considering both throughput and fairness can be obtained.
    Type: Application
    Filed: October 16, 2003
    Publication date: August 26, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-suk Kim, Won-yong Yoon, Tae-jin Lee, Doo-seop Eom, Yang-ick Joo, Kyun-hyon Tcha, Jong-soo Oh
  • Publication number: 20040152417
    Abstract: Disclosed is a handoff processing method capable of restarting fast communications. The handoff processing method stores in a handoff buffer Host Control Interface (HCI) data and transmission data upon communications in a state where an Access Point is interlinked with an external device. Further, the method forwards the HCI data and the transmission data buffered in the handoff buffer to a new Access Point (AP) transmitting a message indicating setup completion of a connection if the message indicating setup completion of a connection with the external device is transmitted from the new AP after a handoff occurs as the external device moves. Accordingly, throughputs are not lowered despite handoff occurrences in poor wireless channel environments, so that service quality can be enhanced.
    Type: Application
    Filed: December 31, 2003
    Publication date: August 5, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Suk Kim, Won-Yong Yoon, Kyun-Hyon Tchah, Doo-Seop Eom, Won-Hee Lee, Tae-Jin Lee, Yang-Ick Joo