Patents by Inventor Joo Mun Lee
Joo Mun Lee 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).
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Patent number: 9990622Abstract: Disclosed herein are an authentication and payment system and method. The authentication and payment system of the present invention includes an issuer server, an issuer information management intermediate server, an acquirer server and a payment server. The issuer server issues, manages and operates payment means. The issuer information management intermediate server manages URL information required to access domestic and foreign issuer servers. The acquirer server performs payment approval and performs acquisition and settlement for member stores. The payment server intermediates between the issuer server and the acquirer server to provide an authentication and payment service in response to a request from a terminal of the merchant. Accordingly, the present invention can provide a safe and convenient payment process with respect to payment means, such as credit cards, electronic money or mobile phone micro payment that can be selected between a purchaser and a merchant.Type: GrantFiled: August 24, 2005Date of Patent: June 5, 2018Assignee: SK Planet Co., Ltd.Inventors: Jun-Won Choi, Joo-Mun Lee, Se-Hyun Oh, Myung-Sung Lee, Whan-Chul Kim
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Patent number: 9037514Abstract: The present invention is directed to a method of payment using a wireless Internet comprising the step of storing individual identification information provided from a user in an authentication server; authenticating the service server when request of the stored individual identification information is received from the service server, and transmitting the stored individual identification information to the service server when the authentication has succeeded; transmitting a message of requesting a service access to a mobile terminal of the user from the service server; and transmitting the individual identification information sent from the authentication server to the mobile terminal by means of a transmitting query of the individual identification information from the mobile terminal.Type: GrantFiled: December 27, 2011Date of Patent: May 19, 2015Assignee: SK PLANET CO., LTD.Inventors: Jun-Won Choi, Joo-Mun Lee, Sang-Yun Lee, Myung-Sung Lee, Jae-Boo Chung
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Patent number: 8811945Abstract: The present invention is to provide individual and payment information to a service server by recognizing whether the service server is to be trusted when individual identification information provided by a user is received from the service server. So, the invention provides an authentication method of the service server and a payment method by using the same, which can prevent the individual identification information and payment from being accessed by a distrusted server in wireless Internet.Type: GrantFiled: October 11, 2006Date of Patent: August 19, 2014Assignee: SK Telecom Co. Ltd.Inventors: Jun-Won Choi, Joo-Mun Lee, Sang-Yun Lee, Myung-Sung Lee, Jae-Boo Chung
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Patent number: 8477016Abstract: The RFID system includes an RFID reader for sending information selected from among collision type information, idle type information, and readable type information, to all of the RFID tags depending on the number of signals in the corresponding time slot, and RFID tags for performing functions, in which, when information, indicating that a current time slot is a collision type, is fed back from the RFID reader, each of RFID tags selects one arbitrary value of either 0 or 1 and is assigned a time slot, in which a corresponding RFID tag will send a signal to the RFID reader, based on the selected value, a single tag group that caused a collision is divided into two sub-groups depending on the assigned time slots, and tags of the sub-groups send signals, including IDs thereof, to the RFID reader in different time slots for the respective sub-groups.Type: GrantFiled: September 8, 2006Date of Patent: July 2, 2013Assignees: SK Planet Co., Ltd., SK Telecom Co., Ltd.Inventors: Kyung-Ho Seo, Won-Jun Lee, Ji-Hoon Myung, Jin-Hee Yoon, Joo-Mun Lee, Sang-Yun Lee, Myung-Sung Lee
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Publication number: 20130005301Abstract: The present invention is directed to a method of payment using a wireless Internet comprising the step of storing individual identification information provided from a user in an authentication server; authenticating the service server when request of the stored individual identification information is received from the service server, and transmitting the stored individual identification information to the service server when the authentication has succeeded; transmitting a message of requesting a service access to a mobile terminal of the user from the service server; and transmitting the individual identification information sent from the authentication server to the mobile terminal by means of a transmitting query of the individual identification information from the mobile terminal.Type: ApplicationFiled: December 27, 2011Publication date: January 3, 2013Inventors: Jun-Won Choi, Joo-Mun Lee, Sang-Yun Lee, Myung-Sung Lee, Jae-Boo Chung
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Patent number: 8028910Abstract: The present invention relates to a tag anti-collision Radio Frequency Identification (RFID) system and a method for tag identification.Type: GrantFiled: December 14, 2005Date of Patent: October 4, 2011Assignee: SK Telecom Co., Ltd.Inventors: Kyung-Ho Seo, Se-Hyun Oh, Jin-Hee Yoon, Joo-Mun Lee, Won-Jun Lee, Ji-Hoon Myung
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Patent number: 8013746Abstract: Disclosed herein is a method of providing alarm service upon movement out of a safety zone in a mobile communication network.Type: GrantFiled: June 30, 2005Date of Patent: September 6, 2011Assignee: SK Telecom Co., Ltd.Inventors: Sang-woon Kwon, Jin-hee Yoon, Joo-mun Lee, Se-hyun Oh
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Patent number: 7978148Abstract: A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances.Type: GrantFiled: February 8, 2009Date of Patent: July 12, 2011Inventors: Gregory A. O'Neill, Murray Fugate, Young-Min Jo, John C. Farrar, Myung Sung Lee, Se-Hyun Oh, Joo Mun Lee, Jin Hee Yoon, Sang Ok Choi, Eun Seok Han
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Publication number: 20090201215Abstract: A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances.Type: ApplicationFiled: February 8, 2009Publication date: August 13, 2009Applicant: SKYCROSS, INC.Inventors: GREGORY A. O'NEILL, JR., MURRAY FUGATE, YOUNG-MIN JO, JOHN C. FARRAR, MYUNG SUNG LEE, SE-HYUN OH, JOO MUN LEE, JIN HEE YOON, SANG OK CHOI, EUN SEOK HAN
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Publication number: 20090081992Abstract: The present invention is to provide individual and payment information to a service server by recognizing whether the service server is to be trusted when individual identification information provided by a user is received from the service server. So, the invention provides an authentication method of the service server and a payment method by using the same, which can prevent the individual identification information and payment from being accessed by a distrusted server in wireless Internet.Type: ApplicationFiled: October 11, 2006Publication date: March 26, 2009Applicant: SK TELECOM. CO., LTD.Inventors: Jun-Won Choi, Joo-Mun Lee, Sang-Yun Lee, Myung-Sung Lee, Jae-Boo Chung
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Publication number: 20090040021Abstract: The RFID system includes an RFID reader for sending information selected from among collision type information, idle type information, and readable type information, to all of the RFID tags depending on the number of signals in the corresponding time slot, and RFID tags for performing functions, in which, when information, indicating that a current time slot is a collision type, is fed back from the RFID reader, each of RFID tags selects one arbitrary value of either 0 or 1 and is assigned a time slot, in which a corresponding RFID tag will send a signal to the RFID reader, based on the selected value, a single tag group that caused a collision is divided into two sub-groups depending on the assigned time slots, and tags of the sub-groups send signals, including IDs thereof, to the RFID reader in different time slots for the respective sub-groups.Type: ApplicationFiled: September 8, 2006Publication date: February 12, 2009Applicant: SK TELECOM CO., LTD.Inventors: Kyung-Ho Seo, Won-Jun Lee, Ji-Hoon Myung, Jin-Hee Yoon, Joo-Mun Lee, Sang-Yun Lee, Myung-Sung Lee
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Patent number: 7489281Abstract: A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances.Type: GrantFiled: July 16, 2007Date of Patent: February 10, 2009Assignee: Sky Cross, Inc.Inventors: Gregory A. O'Neill, Jr., Murray Fugate, Young-Min Jo, John C. Farrar, Myung Sung Lee, Se-hyun Oh, Joo Mun Lee, Jin Hee Yoon, Sang Ok Choi, Eun Seok Han
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Publication number: 20080283600Abstract: The present invention relates to a tag anti-collision Radio Frequency Identification (RFID) system and a method for tag identification.Type: ApplicationFiled: December 14, 2005Publication date: November 20, 2008Inventors: Kyung-Ho Seo, Se-Hyun Oh, Jin-Hee Yoon, Joo-Mun Lee, Won-Jun Lee, Ji-Hoon Myung
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Publication number: 20080189186Abstract: Disclosed herein are an authentication and payment system and method. The authentication and payment system of the present invention includes an issuer server, an issuer information management intermediate server, an acquirer server and a payment server. The issuer server issues, manages and operates payment means. The issuer information management intermediate server manages URL information required to access domestic and foreign issuer servers. The acquirer server performs payment approval and performs acquisition and settlement for member stores. The payment server intermediates between the issuer server and the acquirer server to provide an authentication and payment service in response to a request from a terminal of the merchant. Accordingly, the present invention can provide a safe and convenient payment process with respect to payment means, such as credit cards, electronic money or mobile phone micro payment that can be selected between a purchaser and a merchant.Type: ApplicationFiled: August 24, 2005Publication date: August 7, 2008Inventors: Jun-Won Choi, Joo-Mun Lee, Se-Hyun Oh, Myung-Sung Lee, Whan-Chul Kim
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Publication number: 20080122733Abstract: A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances.Type: ApplicationFiled: July 16, 2007Publication date: May 29, 2008Inventors: Gregory A. O'Neill, Murray Fugate, Young-Min Jo, John C. Farrar, Myung Sung Lee, Se-hyun Oh, Joo Mun Lee, Jin Hee Yoon, Sang Ok Choi, Eun Seok Han
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Publication number: 20070243869Abstract: Disclosed herein is a method of providing alarm service upon movement out of a safety zone in a mobile communication network.Type: ApplicationFiled: June 30, 2005Publication date: October 18, 2007Applicant: SK TELECOM. CO., LTD.Inventors: Sang-woon Kwon, Jin-hee Yoon, Joo-mun Lee, Se-hyun Oh
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Patent number: 7245268Abstract: A quadrifilar helical antenna comprising two pairs of filars having unequal lengths and phase quadrature signals propagating thereon. A conductive H-shaped impedance matching element matches a source impedance to an antenna impedance. The impedance matching element having a feed terminal at the center thereof from which current is supplied to the two filars of each filar pair disposed about an edge of the impedance matching element and symmetric with respect to a center of the impedance matching element. The impedance matching element further comprises a reactive element for matching the antenna and source impedances.Type: GrantFiled: November 26, 2004Date of Patent: July 17, 2007Assignee: SkyCross, Inc.Inventors: Gregory A. O'Neill, Jr., Murray Fugate, Young-Min Jo, John C. Farrar, Myung Sung Lee, Se-hyun Oh, Joo Mun Lee, Jin Hee Yoon, Sang Ok Choi, Eun Seok Han
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Publication number: 20050198211Abstract: A method and a system of creating and transmitting multimedia contents are disclosed. The method is implemented in a multimedia content creating and transmitting system which includes a multimedia content producing/management server which can be connected with transmitting and receiving terminals through wired or wireless communication networks. The method comprises receiving a multimedia content constructing instruction through a communication networks, creating content according to the multimedia content constructing instruction, encoding the created content, and providing the encoded content to a receiving terminal through the communication networks. According to the method, various contents that correspond to various types of transmitting and/or receiving terminals can be produced, edited, converted, transmitted, received, and played back.Type: ApplicationFiled: December 6, 2004Publication date: September 8, 2005Inventors: Keon-Hwa Park, Ki-Tae Hong, Whan-Chul Kim, Joo-Mun Lee, Se-Hyun Oh, Myung-Sung Lee
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Publication number: 20050024275Abstract: An antenna structure for use in a communications device for reducing a user's SAR exposure. In addition to the conventional antenna elements, e.g., a radiating element and a ground plane, the antenna structure of the present invention comprises a conductive element for directing radio frequency energy emitted by the radiating element away from the user, thereby reducing the user's SAR exposure. The conductive element can be disposed on an interior or an exterior surface of a case enclosing the communications device.Type: ApplicationFiled: June 22, 2004Publication date: February 3, 2005Inventors: Young-Min Jo, Se-hyun Oh, Joo-Mun Lee, Jin-Hee Yoon, Sang-Ok Choi, Ki-Hak Shim, Eun-Seok Han