KTFreetel Co., Ltd.

Organization

Seoul, KR

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Handover method in wireless portable internet system
- Patent number 8,934,448
- Issue date Jan 13, 2015
- Electronics and Telecommunications Research Institute
- Jae-Sun Cha
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for scheduling of high-speed portable internet...
- Patent number 8,792,415
- Issue date Jul 29, 2014
- Samsung Electronics Co., Ltd.
- Ju-Hee Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for requesting, generating and distributing service-specific...
- Patent number 8,615,218
- Issue date Dec 24, 2013
- Electronics and Telecommunications Research Institute
- Seok-Heon Cho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for allocating and accessing radio resources in OFDMA system
- Patent number 8,588,145
- Issue date Nov 19, 2013
- Electronics and Telecommunications Research Institute
- Chul-Sik Yoon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless internet terminal and packet transmission method for impro...
- Patent number 8,588,189
- Issue date Nov 19, 2013
- Electronics and Telecommunications Research Institute
- Seung-Que Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for requesting and reporting channel quality information in...
- Patent number 8,462,706
- Issue date Jun 11, 2013
- Electronics and Telecommunications Research Institute
- Chul-Sik Yoon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital clipping method for a transmitter of an orthogonal frequenc...
- Patent number 8,406,320
- Issue date Mar 26, 2013
- Samsung Electronics Co., Ltd.
- Hyeong-Sook Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal in wireless communication system and ranging method thereof
- Patent number 8,194,619
- Issue date Jun 5, 2012
- Samsung Electronics Co., Ltd.
- Nam-Suk Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-mode communication system and method thereof
- Patent number 8,185,108
- Issue date May 22, 2012
- Electronics and Telecommunications Research Institute
- Kwang-Ryul Jung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for cancelling DC offset and method thereof
- Patent number 8,170,147
- Issue date May 1, 2012
- Samsung Electronics Co., Ltd.
- Yong-Su Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for preamble-based bandwidth request in wireless portable in...
- Patent number 8,155,104
- Issue date Apr 10, 2012
- Electronics and Telecommunications Research Institute
- Chul-Sik Yoon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for providing mobile instant messaging service
- Patent number 8,145,257
- Issue date Mar 27, 2012
- KTFreetel Co., Ltd.
- Hye-Won Yim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for authenticating subscriber station, method for configurin...
- Patent number 8,140,054
- Issue date Mar 20, 2012
- Electronics and Telecommunications Research Institute
- Ae-Soon Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Subcarrier allocation apparatus and method, subcarrier de-allocatio...
- Patent number 8,134,914
- Issue date Mar 13, 2012
- Samsung Electronics Co., Ltd.
- Jun-Woo Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for security association negotiation with extensible authent...
- Patent number 8,127,136
- Issue date Feb 28, 2012
- Samsung Electronics Co., Ltd.
- Mi-Young Yun
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sphere decoder and decoding method thereof
- Patent number 8,117,522
- Issue date Feb 14, 2012
- Samsung Electronics Co., Ltd.
- Seong-Rag Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Decoding method for space-time encoding transmission scheme in with...
- Patent number 8,107,514
- Issue date Jan 31, 2012
- Samsung Electronics Co., Ltd.
- Seung-Joon Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for displaying messages in an idle state of mo...
- Patent number 8,078,228
- Issue date Dec 13, 2011
- KTFreetel Co., Ltd.
- Sang-hyun Lim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Decoding apparatus and method thereof
- Patent number 8,074,138
- Issue date Dec 6, 2011
- Samsung Electronics Co., Ltd.
- Su-Chang Chae
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Demodulation apparatus for efficiently embodying adaptive modulatio...
- Patent number 8,068,510
- Issue date Nov 29, 2011
- Electronics and Telecommunications Research Institute
- Jun-Woo Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of vertical handoff
- Patent number 8,064,911
- Issue date Nov 22, 2011
- Electronics and Telecommunications Research Institute
- Won-Ik Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for optimizing neighbor list automatically in...
- Patent number 8,059,602
- Issue date Nov 15, 2011
- KTFreetel Co., Ltd.
- Shin-Jae Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for optimizing neighbor list automatically in...
- Patent number 8,054,803
- Issue date Nov 8, 2011
- KTFreetel Co., Ltd.
- Shin-Jae Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Terminal in wireless communication system and ranging method for dy...
- Patent number 8,027,368
- Issue date Sep 27, 2011
- Samsung Electronics Co., Ltd.
- Nam-Suk Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital broadcasting transmitting system for conditional access and...
- Patent number 8,014,525
- Issue date Sep 6, 2011
- KTFREETEL Co. Ltd.
- Chung-Pyo Hong
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System for providing application and management service and modifyi...
- Patent number 8,014,799
- Issue date Sep 6, 2011
- KTFreetel Co., Ltd.
- Seung-Pyo Kuk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for generating ranging pseudo noise code
- Patent number 7,991,057
- Issue date Aug 2, 2011
- Samsung Electronics Co., Ltd.
- Kyung-Yeol Sohn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Internal data structure of mobile terminal for QoS-based uplink dat...
- Patent number 7,978,651
- Issue date Jul 12, 2011
- Samsung Electronics Co., Ltd.
- Seung-Que Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low density parity check encoder using costas array, and channel en...
- Patent number 7,954,035
- Issue date May 31, 2011
- Electronics and Telecommunications Research Institute
- Su-Chang Chae
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Terminal of portable internet system and method of transmitting upl...
- Patent number 7,944,824
- Issue date May 17, 2011
- Samsung Electronics Co., Ltd.
- Seung-Que Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR REQUESTING AND REPORTING CHANNEL QUALITY INFORMATION IN...
- Publication number 20110305218
- Publication date Dec 15, 2011
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Chul-Sik YOON
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
INTERWORKING SYSTEM BETWEEN IP NETWORKS USING DIFFERENT IP ADDRESS...
- Publication number 20110191493
- Publication date Aug 4, 2011
- KTFreetel Co., Ltd.
- Jang-Won Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TUNNELING METHOD OF MOBILE TERMINAL FOR SUPPORTING IP MOBILITY
- Publication number 20100238923
- Publication date Sep 23, 2010
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Kyung-Yul Cheon
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR TRANSMITTING MULTIMEDIA MESSAGE TO ROAMED MULTIMEDIA MES...
- Publication number 20100056138
- Publication date Mar 4, 2010
- KTFreetel Co., Ltd.
- Sang-Woo Han
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DIGITAL CLIPPING METHOD FOR A TRANSMITTER OF AN ORTHOGONAL FREQUENC...
- Publication number 20100046662
- Publication date Feb 25, 2010
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Hyeong-Sook Park
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for displaying messages in an idle state of mo...
- Publication number 20100029303
- Publication date Feb 4, 2010
- KTFreetel Co., Ltd.
- Sang-hyun Lim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPEN MOBILE BUSINESS SUPPORTING SYSTEM AND METHOD
- Publication number 20090248475
- Publication date Oct 1, 2009
- KTFreetel Co., Ltd.
- Byoung-Cheol CHOI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WIRELESS COMMUNICATION O...
- Publication number 20090219803
- Publication date Sep 3, 2009
- KTFreetel Co., Ltd.
- Jeong-Woo Jwa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF PROVIDING DIRECTION INFORMATION ACCORDING TO REAL-TIME TR...
- Publication number 20090112453
- Publication date Apr 30, 2009
- KTFreetel Co. Ltd.
- Sung-Wook Mo
- G08 - SIGNALLING
Information Patent Application
METHOD AND SYSTEM FOR MEASURING LOCATION USING ROUND TRIP TIME INFO...
- Publication number 20090073031
- Publication date Mar 19, 2009
- KTFreetel Co., Ltd.
- Shin-Jae KIM
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR CONTROLLING USER INTERFACE MENU, AND MOBILE TERMINAL AND...
- Publication number 20090075633
- Publication date Mar 19, 2009
- KTFreetel Co. Ltd.
- Seung-Youl LEE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR OPTIMIZING NEIGHBOR LIST FOR HANDOVER MANA...
- Publication number 20090047961
- Publication date Feb 19, 2009
- KTFreetel Co., Ltd.
- Shin-Jae Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING IDLE SCREEN SERVICE
- Publication number 20090047940
- Publication date Feb 19, 2009
- KTFreetel Co., Ltd.
- Sang-Hyun Lim
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DIGITAL DEVICE AND METHOD FOR PROVIDING ADDITIONAL SERVICE BY USING...
- Publication number 20090029738
- Publication date Jan 29, 2009
- KTFreetel Co., Ltd.
- Young-Sung KIM
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IC CARD, TERMINAL WITH IC CARD AND INITIALIZING METHOD THEREOF
- Publication number 20080320187
- Publication date Dec 25, 2008
- KTFreetel Co.,Ltd.
- Kyoung-Tae KIM
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Terminal and Method for Accessing Wireless Connection
- Publication number 20080304440
- Publication date Dec 11, 2008
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT
- Sun-Mi Jun
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEVICE AND METHOD FOR CONTROLLING OVERLOAD
- Publication number 20080299986
- Publication date Dec 4, 2008
- KTFreetel Co., Ltd.
- Woo-Suk Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD FOR PROVIDING MOBILE SERVICE USING CODE-PATTERN
- Publication number 20080247363
- Publication date Oct 9, 2008
- KTFreetel Co., Ltd.
- Jae-Jun Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
METHOD FOR PROVIDING MOBILE SERVICE USING CODE-PATTERN
- Publication number 20080245870
- Publication date Oct 9, 2008
- KTFreetel Co., Ltd.
- Jae-Jun Lee
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Apparatus and Method for Scheduling of High-Speed Portable Internet...
- Publication number 20080186909
- Publication date Aug 7, 2008
- SAMSUNG ELECTRONICS CO., LTD.
- Ju-Hee Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus and Method for Generating Ranging Pseudo Noise Code
- Publication number 20080170632
- Publication date Jul 17, 2008
- EKECTRINUCS AND TELECOMMUNICATIONS RESEARCH INSTIT
- Kyung-Yeol Sohn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sleep Mode Driving Method for Portable Terminal
- Publication number 20080165716
- Publication date Jul 10, 2008
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT
- Yong-Seouk Choi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Synchronous Orthogonal Frequency Division Multiplexing Receiving Ap...
- Publication number 20080123517
- Publication date May 29, 2008
- Samsung Electronics Co., LTD
- Jun-Woo Kim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and Apparatus for Selling Used Contents
- Publication number 20080103983
- Publication date May 1, 2008
- KTFreetel Co., Ltd.
- Jae-seok Jang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method and Apparatus for Providing Virtual Mobile Phone Number
- Publication number 20080081617
- Publication date Apr 3, 2008
- KTFreetel Co., Ltd.
- Yong-kyu Yoo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Certification Mobile Terminal and Electronic Commerce System and Me...
- Publication number 20080077534
- Publication date Mar 27, 2008
- KTFREETEL CO., LTD.
- Jeung-Yeup Son
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for Automatic Gain Control Before Initial Synchronization in...
- Publication number 20080056394
- Publication date Mar 6, 2008
- Samsung Electronics Co., LTD
- Yong-Su Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for Constructing Frame Preamble in Ofdm Wireless Communicati...
- Publication number 20080043858
- Publication date Feb 21, 2008
- ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Hyoung-Soo Lim
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dualduplexer having matrix structure and method for forming the same
- Publication number 20070115863
- Publication date May 24, 2007
- KTFreetel Co. Ltd.
- Tae-Won Seo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and device for providing mobile services with virtual number
- Publication number 20050277407
- Publication date Dec 15, 2005
- KTFreetel Co., Ltd.
- Tae-Hyo Ahn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Trademarklast 30 trademarks

Information Trademark
78166781 - FIMM
- Serial number 78166781
- Registration number 2869162
- Filing date Sep 23, 2002
- KTFreetel Co., Ltd.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
78091027 - KTF
- Serial number 78091027
- Registration number 2693383
- Filing date Oct 31, 2001
- KTFreetel Co., Ltd.
- 38 - Telecommunications

KTFreetel Co., Ltd.

Organization

Patents Grantslast 30 patents

Handover method in wireless portable internet system

Apparatus and method for scheduling of high-speed portable internet...

Method for requesting, generating and distributing service-specific...

Method for allocating and accessing radio resources in OFDMA system

Wireless internet terminal and packet transmission method for impro...

Method for requesting and reporting channel quality information in...

Digital clipping method for a transmitter of an orthogonal frequenc...

Terminal in wireless communication system and ranging method thereof

Multi-mode communication system and method thereof

Apparatus for cancelling DC offset and method thereof

Method for preamble-based bandwidth request in wireless portable in...

Apparatus and method for providing mobile instant messaging service

Method for authenticating subscriber station, method for configurin...

Subcarrier allocation apparatus and method, subcarrier de-allocatio...

Method for security association negotiation with extensible authent...

Sphere decoder and decoding method thereof

Decoding method for space-time encoding transmission scheme in with...

Method and apparatus for displaying messages in an idle state of mo...

Decoding apparatus and method thereof

Demodulation apparatus for efficiently embodying adaptive modulatio...

Method of vertical handoff

Method and apparatus for optimizing neighbor list automatically in...

Method and apparatus for optimizing neighbor list automatically in...

Terminal in wireless communication system and ranging method for dy...

Digital broadcasting transmitting system for conditional access and...

System for providing application and management service and modifyi...

Apparatus and method for generating ranging pseudo noise code

Internal data structure of mobile terminal for QoS-based uplink dat...

Low density parity check encoder using costas array, and channel en...

Terminal of portable internet system and method of transmitting upl...

Patents Applicationslast 30 patents

METHOD FOR REQUESTING AND REPORTING CHANNEL QUALITY INFORMATION IN...

INTERWORKING SYSTEM BETWEEN IP NETWORKS USING DIFFERENT IP ADDRESS...

TUNNELING METHOD OF MOBILE TERMINAL FOR SUPPORTING IP MOBILITY

METHOD FOR TRANSMITTING MULTIMEDIA MESSAGE TO ROAMED MULTIMEDIA MES...

DIGITAL CLIPPING METHOD FOR A TRANSMITTER OF AN ORTHOGONAL FREQUENC...

Method and apparatus for displaying messages in an idle state of mo...

OPEN MOBILE BUSINESS SUPPORTING SYSTEM AND METHOD

ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING WIRELESS COMMUNICATION O...

METHOD OF PROVIDING DIRECTION INFORMATION ACCORDING TO REAL-TIME TR...

METHOD AND SYSTEM FOR MEASURING LOCATION USING ROUND TRIP TIME INFO...

METHOD FOR CONTROLLING USER INTERFACE MENU, AND MOBILE TERMINAL AND...

METHOD AND APPARATUS FOR OPTIMIZING NEIGHBOR LIST FOR HANDOVER MANA...

METHOD AND APPARATUS FOR PROVIDING IDLE SCREEN SERVICE

DIGITAL DEVICE AND METHOD FOR PROVIDING ADDITIONAL SERVICE BY USING...

IC CARD, TERMINAL WITH IC CARD AND INITIALIZING METHOD THEREOF

Terminal and Method for Accessing Wireless Connection

DEVICE AND METHOD FOR CONTROLLING OVERLOAD

METHOD FOR PROVIDING MOBILE SERVICE USING CODE-PATTERN

METHOD FOR PROVIDING MOBILE SERVICE USING CODE-PATTERN

Apparatus and Method for Scheduling of High-Speed Portable Internet...

Apparatus and Method for Generating Ranging Pseudo Noise Code

Sleep Mode Driving Method for Portable Terminal

Synchronous Orthogonal Frequency Division Multiplexing Receiving Ap...

Method and Apparatus for Selling Used Contents

Method and Apparatus for Providing Virtual Mobile Phone Number

Certification Mobile Terminal and Electronic Commerce System and Me...

Method for Automatic Gain Control Before Initial Synchronization in...

Method for Constructing Frame Preamble in Ofdm Wireless Communicati...

Dualduplexer having matrix structure and method for forming the same

Method and device for providing mobile services with virtual number

Trademarklast 30 trademarks

78166781 - FIMM

78091027 - KTF