Patents by Inventor Dong Won Ryu
Dong Won Ryu 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: 20200113007Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: ApplicationFiled: December 5, 2019Publication date: April 9, 2020Inventors: Dong Won RYU, Euy Beom LEE
-
Publication number: 20150080007Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: ApplicationFiled: November 24, 2014Publication date: March 19, 2015Inventors: Dong Won RYU, Euy Beom LEE
-
Publication number: 20150063276Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: ApplicationFiled: November 10, 2014Publication date: March 5, 2015Inventors: Dong Won RYU, Euy Beom LEE
-
Patent number: 8897786Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: GrantFiled: September 16, 2013Date of Patent: November 25, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Won Ryu, Euy Beom Lee
-
Patent number: 8886196Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: GrantFiled: June 21, 2013Date of Patent: November 11, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Won Ryu, Euy Beom Lee
-
Publication number: 20140018078Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: ApplicationFiled: September 16, 2013Publication date: January 16, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Dong Won RYU, Euy Beom LEE
-
Apparatus and method for reselecting a public land mobile network in a mobile communication terminal
Patent number: 8630641Abstract: Provided are an apparatus and a method for reselecting a Public Land Mobile Network (PLMN) in a mobile communication terminal. The method includes requesting the updating of location registration to a target PLMN after storing current system information, determining whether a Subscriber Identify Module (SIM) card is valid when it fails to update the location registration, and resetting the SIM card to a previous state and then, reading the stored current system information to request the updating of location registration in the current PLMN when the SIM card is invalid.Type: GrantFiled: June 12, 2007Date of Patent: January 14, 2014Assignee: Samsung Electronics Co., LtdInventors: Yu-Shin Kim, Dong-Won Ryu, Yong-Suk Moon -
Publication number: 20130281094Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: ApplicationFiled: June 21, 2013Publication date: October 24, 2013Inventors: Dong Won RYU, Euy Beom LEE
-
Patent number: 8472957Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: GrantFiled: December 5, 2008Date of Patent: June 25, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Won Ryu, Euy Beom Lee
-
Patent number: 7961676Abstract: Provided is an apparatus and method for providing a call-processing service in a mobile terminal. The apparatus includes a circuit processor that provides a Circuit Service (CS), a packet processor that provides a Packet Service (PS), a period measuring unit that measures a delayed paging period in which a call-processing signal is detected while the PS is provided, and a monitoring unit that shifts the PS to a standby mode during the delayed paging period measured by the period measuring unit if the packet processor is in the process of receiving the PS, and controls the circuit process to provide the CS if the call-processing signal is received.Type: GrantFiled: July 25, 2007Date of Patent: June 14, 2011Assignee: Samsung Electronics Co., LtdInventors: Gwan-Gyu Seo, Dong-Won Ryu, Yu-Shin Kim
-
Patent number: 7877098Abstract: A method of determining cell reselection in a mobile communication terminal and an apparatus therefor are provided. The method includes receiving system information to calculate a threshold value in consideration of channel quality, a cell reselection weight value, and a cell reselection reference value; and determining whether to perform cell reselection using the threshold value in consideration of the channel quality, the cell reselection weight value, and the cell reselection reference value in a specific wireless environment.Type: GrantFiled: May 9, 2007Date of Patent: January 25, 2011Assignee: Samsung Electronics Co., LtdInventors: Dong-Won Ryu, Yu-Shin Kim, Joo-Hyun Lee
-
Patent number: 7659945Abstract: A color reproduction correcting system and method, and a video display device and method can reproduce original color by considering signal source and display device. Each signal source information and each display device information can be stored. The signal source and the display device, which are currently used (e.g., corrected), can be determined, for example, by a user selection. In one embodiment, the signal provided from a transmission side can be inverse gamma-corrected based on a corresponding signal source, and a colorimetric error of the inverse gamma-corrected signal is preferably corrected using corresponding signal source information and display device information. The corrected colorimetric error signal can be gamma-corrected based on a corresponding display device and then can be displayed on the corresponding display device.Type: GrantFiled: March 22, 2007Date of Patent: February 9, 2010Assignee: LG Electronics Inc.Inventors: Hee Chul Kim, Kyu Ik Sohng, Eun Su Kim, Dae Won Kim, Dong Won Ryu, Jong Sun Park, Jong Keun Shin
-
Publication number: 20090181683Abstract: A system, device and method for communication control in a dual transfer mode are disclosed. The method includes performing a voice call by a portable terminal, based on a dual transfer mode, requesting to download data from a server by the portable terminal, determining whether voice information exists to be transmitted to the portable terminal, allocating data intended to be transmitted to the portable terminal, to time slots previously allocated to transfer voice information, if voice information does not exist, and transmitting the allocated data to the portable terminal.Type: ApplicationFiled: December 29, 2008Publication date: July 16, 2009Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventor: Dong Won RYU
-
Publication number: 20090163240Abstract: A call connection method and apparatus are disclosed. When a service is released in a portable terminal that supports different communication modes due to a network problem, the call connection method and apparatus reconnects the service to another network. The call connection method includes performing a first service through a first network, analyzing, when the connected first service is released, the cause of disconnection, acquiring, when the cause of disconnection is a problem in the first network, connection information, and attempting to connect a second service through a second network based on the connection information.Type: ApplicationFiled: December 5, 2008Publication date: June 25, 2009Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Dong Won RYU, Euy Beom LEE
-
Publication number: 20090036134Abstract: A revision level notification method and system for a mobile station is provided for facilitating a handover between networks of different generations. The revision level notification method for an inter-generation handover includes detecting a handover trigger event for a handover from a first network to a second network, setting a protocol version in association with the first network, receiving a classmark enquiry message from the second network, and transmitting a classmark change message containing a revision level of a mobile station obtained with reference to the protocol version to the second network in response to the classmark enquiry message.Type: ApplicationFiled: July 21, 2008Publication date: February 5, 2009Applicant: SAMSUNG ELECTRONICS CO. LTD.Inventors: Dong Won RYU, Keon Young LEE
-
Publication number: 20080090566Abstract: Provided is an apparatus and method for providing a call-processing service in a mobile terminal. The apparatus includes a circuit processor that provides a Circuit Service (CS), a packet processor that provides a Packet Service (PS), a period measuring unit that measures a delayed paging period in which a call-processing signal is detected while the PS is provided, and a monitoring unit that shifts the PS to a standby mode during the delayed paging period measured by the period measuring unit if the packet processor is in the process of receiving the PS, and controls the circuit process to provide the CS if the call-processing signal is received.Type: ApplicationFiled: July 25, 2007Publication date: April 17, 2008Applicant: SAMSUNG ELECTRONICS CO,. LTD.Inventors: Gwan-Gyu SEO, Dong-Won Ryu, Yu-Shin Kim
-
APPARATUS AND METHOD FOR RESELECTING A PUBLIC LAND MOBILE NETWORK IN A MOBILE COMMUNICATION TERMINAL
Publication number: 20070298801Abstract: Provided are an apparatus and a method for reselecting a Public Land Mobile Network (PLMN) in a mobile communication terminal. The method includes requesting the updating of location registration to a target PLMN after storing current system information, determining whether a Subscriber Identify Module (SIM) card is valid when it fails to update the location registration, and resetting the SIM card to a previous state and then, reading the stored current system information to request the updating of location registration in the current PLMN when the SIM card is invalid.Type: ApplicationFiled: June 12, 2007Publication date: December 27, 2007Applicant: Samsung Electronics Co., Ltd.Inventors: Yu-Shin KIM, Dong-Won RYU, Yong-Suk MOON -
Publication number: 20070287461Abstract: A method of determining cell reselection in a mobile communication terminal and an apparatus therefor are provided. The method includes receiving system information to calculate a threshold value in consideration of channel quality, a cell reselection weight value, and a cell reselection reference value; and determining whether to perform cell reselection using the threshold value in consideration of the channel quality, the cell reselection weight value, and the cell reselection reference value in a specific wireless environment.Type: ApplicationFiled: May 9, 2007Publication date: December 13, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Won Ryu, Yu-Shin Kim, Joo-Hyun Lee
-
Publication number: 20060160541Abstract: Disclosed is a method for cell reselection in a global system for mobile communication, the method including measuring reception powers and reception qualities of signals provided from a current serving cell and neighboring cells; finding a cell corresponding to a predetermined criterion from among the neighboring cells by comparing the measured reception powers and reception qualities of the current serving cell and the neighboring cells; and performing cell reselection to a relevant cell when the relevant cell corresponding to the predetermined criterion is found.Type: ApplicationFiled: November 29, 2005Publication date: July 20, 2006Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong-Won Ryu
-
Publication number: 20030218695Abstract: A color reproduction correcting system and method, and a video display device and method can reproduce original color by considering signal source and display device. Each signal source information and each display device information can be stored. The signal source and the display device, which are currently used (e.g., corrected), can be determined, for example, by a user selection. In one embodiment, the signal provided from a transmission side can be inverse gamma-corrected based on a corresponding signal source, and a colorimetric error of the inverse gamma-corrected signal is preferably corrected using corresponding signal source information and display device information. The corrected colorimetric error signal can be gamma-corrected based on a corresponding display device and then can be displayed on the corresponding display device.Type: ApplicationFiled: May 16, 2003Publication date: November 27, 2003Inventors: Hee Chul Kim, Kyu Ik Sohng, Eun Su Kim, Dae Won Kim, Dong Won Ryu, Jong Sun Park, Jong Keun Shin