TWI369091B - Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information - Google Patents

Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information

Info

Publication number
TWI369091B
TWI369091B TW094128260A TW94128260A TWI369091B TW I369091 B TWI369091 B TW I369091B TW 094128260 A TW094128260 A TW 094128260A TW 94128260 A TW94128260 A TW 94128260A TW I369091 B TWI369091 B TW I369091B
Authority
TW
Taiwan
Prior art keywords
ofdm
protecting
frequency division
division multiplexing
orthogonal frequency
Prior art date
Application number
TW094128260A
Other languages
English (en)
Other versions
TW200635261A (en
Inventor
R Chitrapu Prabhakar
David Kaewell John Jr
Dan Herschaft Richard
Erich Hoffmann John
Lind Olesen Robert
Shin Sung-Hyuk
Original Assignee
Interdigital Tech Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of TW200635261A publication Critical patent/TW200635261A/zh
Application granted granted Critical
Publication of TWI369091B publication Critical patent/TWI369091B/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0061Error detection codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0064Concatenated codes
    • H04L1/0065Serial concatenated codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0606Space-frequency coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W12/00Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06Authentication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/02Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618Space-time coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Time-Division Multiplex Systems (AREA)
TW094128260A 2004-01-13 2005-01-13 Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information TWI369091B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53614404P 2004-01-13 2004-01-13
US53613304P 2004-01-13 2004-01-13

Publications (2)

Publication Number Publication Date
TW200635261A TW200635261A (en) 2006-10-01
TWI369091B true TWI369091B (en) 2012-07-21

Family

ID=34798861

Family Applications (6)

Application Number Title Priority Date Filing Date
TW094128260A TWI369091B (en) 2004-01-13 2005-01-13 Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW094128261A TWI381697B (zh) 2004-01-13 2005-01-13 保護及認證無線傳輸數位資訊之分碼多重存取(cdma)方法及裝置
TW094101044A TWI262694B (en) 2004-01-13 2005-01-13 Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW098101115A TW200945850A (en) 2004-01-13 2005-01-13 Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW094101043A TWI305092B (en) 2004-01-13 2005-01-13 Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW097147724A TWI399049B (zh) 2004-01-13 2005-01-13 保護及認證無線傳輸數位資訊之正交分頻多工方法及裝置

Family Applications After (5)

Application Number Title Priority Date Filing Date
TW094128261A TWI381697B (zh) 2004-01-13 2005-01-13 保護及認證無線傳輸數位資訊之分碼多重存取(cdma)方法及裝置
TW094101044A TWI262694B (en) 2004-01-13 2005-01-13 Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW098101115A TW200945850A (en) 2004-01-13 2005-01-13 Code division multiple access (CDMA) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW094101043A TWI305092B (en) 2004-01-13 2005-01-13 Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information
TW097147724A TWI399049B (zh) 2004-01-13 2005-01-13 保護及認證無線傳輸數位資訊之正交分頻多工方法及裝置

Country Status (4)

Country Link
US (2) US7415043B2 (zh)
AR (2) AR047414A1 (zh)
TW (6) TWI369091B (zh)
WO (2) WO2005069836A2 (zh)

Families Citing this family (105)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7548787B2 (en) * 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
US7340053B2 (en) * 2003-07-18 2008-03-04 National Institute Of Information And Communications Technology Cipher strength estimating device
US7532723B2 (en) * 2003-11-24 2009-05-12 Interdigital Technology Corporation Tokens/keys for wireless communications
US20070121939A1 (en) * 2004-01-13 2007-05-31 Interdigital Technology Corporation Watermarks for wireless communications
US20050220322A1 (en) * 2004-01-13 2005-10-06 Interdigital Technology Corporation Watermarks/signatures for wireless communications
WO2005069836A2 (en) * 2004-01-13 2005-08-04 Interdigital Technology Corporation Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information
US7680278B2 (en) * 2004-02-04 2010-03-16 Microsoft Corporation Domino scheme for wireless cryptographic communication and communication method incorporating same
TW200529037A (en) * 2004-02-18 2005-09-01 Interdigital Tech Corp Method and system for using watermarks in communication systems
US8077592B2 (en) * 2004-06-22 2011-12-13 Intellectual Ventures I Llc Packet processing systems and methods
US8149685B2 (en) * 2004-09-03 2012-04-03 University Of South Florida Covert OFDM transmission using cyclic prefix
EP2750312B1 (en) 2004-10-29 2018-04-04 Sharp Kabushiki Kaisha Communication method and radio transmitter
KR100909539B1 (ko) * 2004-11-09 2009-07-27 삼성전자주식회사 다중 안테나를 사용하는 광대역 무선 접속 시스템에서 다양한 다중안테나 기술을 지원하기 위한 장치 및 방법
CN101103571B (zh) 2005-01-18 2011-12-14 夏普株式会社 无线通信装置、便携式终端以及无线通信方法
US8306541B2 (en) 2005-03-08 2012-11-06 Qualcomm Incorporated Data rate methods and apparatus
US7974253B2 (en) * 2005-03-08 2011-07-05 Qualcomm Incorporated Methods and apparatus for implementing and using a rate indicator
US7894324B2 (en) * 2005-03-08 2011-02-22 Qualcomm Incorporated Methods and apparatus for signaling data rate option information
US20080276324A1 (en) * 2005-04-13 2008-11-06 Koninklijke Philips Electronics, N.V. Encoding With Watermarking Prior to Phase Modulation
KR20060115293A (ko) * 2005-05-04 2006-11-08 삼성전자주식회사 Ofdma 방식의 시스템에서 채널의 구성 및 운용 방법과송수신 장치 및 방법
US8565194B2 (en) * 2005-10-27 2013-10-22 Qualcomm Incorporated Puncturing signaling channel for a wireless communication system
BRPI0520341A2 (pt) * 2005-06-23 2009-05-05 Thomson Licensing sistema e método de registro de dispositivo de acesso a multimìdia
US8315240B2 (en) * 2005-07-20 2012-11-20 Qualcomm Incorporated Enhanced uplink rate indicator
US7620076B2 (en) * 2005-08-23 2009-11-17 Meshnetworks, Inc. System and method for variably inserting training symbols into transmissions by estimating the channel coherence time in a wireless communication network
US20070150565A1 (en) * 2005-12-22 2007-06-28 Arun Ayyagari Surveillance network system
US20070201408A1 (en) * 2006-02-08 2007-08-30 Nokia Corporation Apparatus, method and computer program product providing a transport format that is compatible with another transport format that uses spreading codes
US20070217626A1 (en) * 2006-03-17 2007-09-20 University Of Rochester Watermark Synchronization System and Method for Embedding in Features Tolerant to Errors in Feature Estimates at Receiver
EP2005614A4 (en) 2006-03-17 2012-02-22 Nortel Networks Ltd CLOSED LOOP MIMO SYSTEMS AND METHODS
GB2438904A (en) * 2006-06-06 2007-12-12 Sony Uk Ltd Generation of code words for image watermarking
RU2411650C2 (ru) 2006-08-07 2011-02-10 Интердиджитал Текнолоджи Корпорейшн Способ, устройство и система для реализации многопользовательского виртуального множественного входа/множественного выхода
US8213616B2 (en) * 2006-09-18 2012-07-03 Georgia Tech Research Corporation Systems and methods for providing opportunistic security for physical communication channels
WO2008086599A1 (en) * 2007-01-18 2008-07-24 Nortel Networks Limited Method and apparatus for reducing probability of detection, improving jamming resistance and security for broadband wireless systems
US20080175219A1 (en) * 2007-01-23 2008-07-24 Innovative Sonic Limited Method of detecting slot format of physical signaling channel in a wireless communications system and related apparatus
KR100966522B1 (ko) * 2007-04-09 2010-06-29 삼성전자주식회사 다중안테나 시스템에서 일그러짐 없는 벡터 섭동을제공하는 장치 및 방법
US8000419B2 (en) * 2007-04-10 2011-08-16 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for cancellation of partially known interference using transmit diversity based interference cancellation
EP2009838A1 (en) * 2007-06-29 2008-12-31 France Télécom Efficient and secure cryptographic coupon reloading
US7853857B2 (en) * 2007-09-14 2010-12-14 Motorola Mobility, Inc. Multi-layer cyclic redundancy check code in wireless communication system
EP2063375B1 (en) * 2007-11-23 2017-09-20 Orange Authentication system and method using electronic tags
US8391267B2 (en) * 2007-12-20 2013-03-05 Mediatek Inc. TD-SCDMA uplink processing for synchronization of signals at base station receiver
US8699444B2 (en) * 2007-12-21 2014-04-15 Apple Inc. Broadcast system interference protection method and apparatus
WO2009080844A1 (es) * 2007-12-26 2009-07-02 Sidsa (Semiconductores Investigación Y Diseño, S.A.) Metodo y aparato para transmision y deteccion de marcas de agua digitales en sistemas de comunicaciones ofdm
US8599824B2 (en) * 2008-01-11 2013-12-03 Broadcom Corporation Method and system for bluetooth conditional synchronization
US8270356B2 (en) * 2008-01-22 2012-09-18 Lg Electronics Inc. Method for encoding data unit by using a plurality of CRC algorithms
KR20090095434A (ko) * 2008-03-03 2009-09-09 삼성전자주식회사 무선 통신 시스템에서 다중 주파수 밴드를 이용한 신호송수신 시스템 및 방법
CN101960776A (zh) * 2008-03-04 2011-01-26 皇家飞利浦电子股份有限公司 在ofdm通信系统中发射机的基于加水印的物理层鉴别方法
US8958460B2 (en) 2008-03-18 2015-02-17 On-Ramp Wireless, Inc. Forward error correction media access control system
US8477830B2 (en) 2008-03-18 2013-07-02 On-Ramp Wireless, Inc. Light monitoring system using a random phase multiple access system
US8520721B2 (en) 2008-03-18 2013-08-27 On-Ramp Wireless, Inc. RSSI measurement mechanism in the presence of pulsed jammers
US20100195553A1 (en) * 2008-03-18 2010-08-05 Myers Theodore J Controlling power in a spread spectrum system
EP2283582A2 (en) * 2008-05-05 2011-02-16 North Carolina State University Methods, systems, and computer readable media for scrambled communication of data to, from, or over a medium
JP4582193B2 (ja) * 2008-05-23 2010-11-17 ソニー株式会社 受信装置、及び受信方法
WO2010004586A2 (en) * 2008-07-10 2010-01-14 Centre Of Excellence In Wireless Technology Method and system for signal transmission and reception
CN102160357B (zh) * 2008-09-16 2014-03-12 艾利森电话股份有限公司 通信网络中的密钥管理
US9112910B2 (en) * 2008-10-14 2015-08-18 International Business Machines Corporation Method and system for authentication
DE102009008535B4 (de) * 2009-02-11 2011-06-01 Siemens Aktiengesellschaft Verfahren und System zum sicheren Übertragen einer Nachricht
US8804611B2 (en) * 2009-02-12 2014-08-12 Qualcomm Incorporated Method and apparatus for acknowledging successful reception of a data transmission for multi-access compatibility in a wireless communication system
US8363699B2 (en) 2009-03-20 2013-01-29 On-Ramp Wireless, Inc. Random timing offset determination
WO2010116280A1 (en) * 2009-04-10 2010-10-14 Koninklijke Philips Electronics, N.V. Signaling method and apparatus to enable multiple antenna communications in wireless systems
US8885577B2 (en) * 2009-06-23 2014-11-11 Motorola Mobility Llc Method of assigning and managing gaps for reading system information of neighboring cells
CN102484567B (zh) * 2009-08-21 2016-02-10 阿瓦尔有限公司 基于分组的ofdm系统中的报头重复
US8351605B2 (en) 2009-09-16 2013-01-08 International Business Machines Corporation Stealth message transmission in a network
CN101667889B (zh) * 2009-09-30 2013-08-07 中兴通讯股份有限公司 Td-scdma系统的业务配置和速率匹配方法、装置
WO2011050390A1 (en) * 2009-10-29 2011-05-05 Oscar Moreno De Ayala Digital watermarking
US9161214B2 (en) * 2010-03-05 2015-10-13 University Of Maryland Wireless communication method and system for transmission authentication at the physical layer
US8873582B2 (en) * 2010-04-08 2014-10-28 Lg Electronics Inc. Method for transmitting PPDU in wireless local area network and apparatus for the same
US8873384B2 (en) 2010-11-01 2014-10-28 Cisco Technology, Inc. Bandwidth indication in RTS/CTS frames
US9282552B2 (en) * 2011-05-17 2016-03-08 Lg Electronics Inc. Method for transmitting and receiving control information in a wireless communication system, and apparatus for same
US9385848B2 (en) * 2011-05-20 2016-07-05 Microsoft Technology Licensing, Llc Short-range nodes with adaptive preambles for coexistence
US9401832B2 (en) 2011-05-20 2016-07-26 Microsoft Technology Licensing, Llc Long-range nodes with adaptive preambles for coexistence
KR20120137198A (ko) 2011-06-11 2012-12-20 삼성전자주식회사 통신 시스템에서 패킷 송수신 장치 및 방법
US9560073B2 (en) 2011-09-08 2017-01-31 Drexel University Reconfigurable antenna based solutions for device authentication and intrusion detection in wireless networks
US8634777B2 (en) * 2011-09-26 2014-01-21 Broadcom Corporation Pairing with directional code sequence
US20130101059A1 (en) * 2011-10-03 2013-04-25 Ira S. Moskowitz Pre-modulation physical layer steganography
CA2859371C (en) 2011-12-15 2017-11-14 Northrop Grumman Guidance And Electronics Company, Inc. System and method for detection of rf signal spoofing
US9538040B2 (en) * 2011-12-16 2017-01-03 University Of Maryland, College Park Active sensing for dynamic spectrum access
US8909929B2 (en) * 2012-05-31 2014-12-09 Atmel Corporation Stored public key validity registers for cryptographic devices and systems
US8701161B1 (en) 2012-06-29 2014-04-15 Adtran, Inc. Systems and methods for detecting network intrusion devices
US9369324B2 (en) * 2012-11-16 2016-06-14 Icom Incorporated Communication apparatus and communication method
US9318116B2 (en) * 2012-12-14 2016-04-19 Disney Enterprises, Inc. Acoustic data transmission based on groups of audio receivers
GB201302414D0 (en) 2013-02-12 2013-03-27 Sepura Ltd Mobile communication system
US9450797B2 (en) * 2013-02-12 2016-09-20 Sepura Plc Mobile communications system
US20140294124A1 (en) * 2013-03-28 2014-10-02 Sony Corporation Transmitter and method of transmitting and receiver and method of detecting ofdm signals
US9876614B1 (en) * 2014-01-20 2018-01-23 Marvell International Ltd. Hybrid automatic repeat request for wireless local area network
US11309998B2 (en) * 2014-02-03 2022-04-19 Nxp Usa, Inc. Hybrid automatic repeat request for wireless local area network
WO2015198145A1 (en) 2014-06-27 2015-12-30 Techflux, Ltd. Bandwidth signaling
EP3162015B1 (en) 2014-06-27 2021-08-11 Techflux Inc. Method and device for transmitting data unit
EP4030712B1 (en) 2014-06-27 2023-11-08 Samsung Electronics Co., Ltd. Method and device for transmitting data
KR20160014480A (ko) * 2014-07-29 2016-02-11 한국전자통신연구원 직교 신호 파형 기반의 직렬 버스 통신 장치 및 방법
US10797923B2 (en) * 2015-05-19 2020-10-06 Nokia Solutions And Networks Oy Enhancing data transfer
US10367761B2 (en) * 2016-04-25 2019-07-30 Intel IP Corporation Coordinated channel switch timing and transmissions in neighborhood awareness networks
US10650689B2 (en) * 2016-11-01 2020-05-12 The Mitre Corporation Waveform authentication system and method
WO2019113863A1 (zh) * 2017-12-13 2019-06-20 深圳大学 基于置信传递的频率选择性衰落信道的盲认证方法和系统
WO2019113865A1 (zh) * 2017-12-13 2019-06-20 深圳大学 基于置信传递的时变衰落信道的物理层盲认证方法和系统
US11412378B2 (en) * 2017-12-13 2022-08-09 Shenzhen University Smoothing technology-based blind authentication method and system for frequency selective fading channel
US10642179B2 (en) 2018-01-24 2020-05-05 Xerox Corporation Security toner and process using thereof
JP2021129126A (ja) 2018-04-27 2021-09-02 ソニーグループ株式会社 無線通信装置、および、無線通信方法
US20210204122A1 (en) * 2018-06-19 2021-07-01 University Of Notre Dame Du Lac Security for Wireless Communications
US20210215817A1 (en) * 2018-08-17 2021-07-15 Aura Intelligent Systems, Inc. Synthetic aperture antenna array for 3d imaging
WO2020092369A1 (en) 2018-10-30 2020-05-07 Marvell World Trade Ltd. Method and apparatus for generating a physical layer (phy) data unit for hybrid automatic repeat request (harq)
US11387936B2 (en) 2018-12-14 2022-07-12 Nxp Usa, Inc. Hybrid automatic repeat request (HARQ) retransmission schemes for a wireless local area network (WLAN)
US11374698B2 (en) 2019-06-05 2022-06-28 Marvell Asia Pte Ltd Physical layer (PHY) data unit format for hybrid automatic repeat request (HARQ)
KR102203699B1 (ko) * 2019-06-13 2021-01-14 조선대학교산학협력단 더티 페이퍼 코딩을 통한 전자 서명이 가능한 데이터 전송 장치 및 그 동작 방법
US11290223B1 (en) 2019-06-25 2022-03-29 Marvell Asia Pte Ltd Physical layer (PHY) data unit encoding for hybrid automatic repeat request (HARQ) transmission
US20210392497A1 (en) * 2020-06-15 2021-12-16 Cisco Technology, Inc. Dynamically encrypted radio frequency fingerprinting
GB2597658B (en) * 2020-07-23 2024-06-12 Qinetiq Ltd Signal authentication system and method
CN116470929A (zh) * 2022-01-12 2023-07-21 瑞昱半导体股份有限公司 利用展频调变隐藏供应商信息的无线通信装置与方法
CN115065380B (zh) * 2022-03-31 2023-10-20 北京全路通信信号研究设计院集团有限公司 伪码同步方法、装置、电子设备和存储介质

Family Cites Families (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB211612A (en) 1922-12-08 1924-02-28 Roger Charles James Boaler Apparatus for improving the performance of magnetos
US4692897A (en) * 1984-09-04 1987-09-08 Gte Communication Systems Corporation Arrangement for dynamic range checking or matching for digital values in a software system
US5021000A (en) * 1989-11-20 1991-06-04 National Semiconductor Corporation Zero insertion force socket with low inductance and capacitance
US5568483A (en) * 1990-06-25 1996-10-22 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
FR2674352B1 (fr) 1991-03-19 1995-06-23 Telediffusion Fse Systeme de mise hors service controlee et de localisation d'un equipement meuble ou mobile.
US5201000A (en) 1991-09-27 1993-04-06 International Business Machines Corporation Method for generating public and private key pairs without using a passphrase
US5274666A (en) * 1991-10-16 1993-12-28 Telephonics Corporation Wireless communication system
US5343213A (en) * 1991-10-22 1994-08-30 Motorola, Inc. Snap-in antenna assembly
US5872519A (en) * 1992-05-22 1999-02-16 Directed Electronics, Inc. Advanced embedded code hopping system
US5778304A (en) 1994-03-10 1998-07-07 Motorola, Inc. Method for providing communication services based on geographic location
US5602916A (en) 1994-10-05 1997-02-11 Motorola, Inc. Method and apparatus for preventing unauthorized monitoring of wireless data transmissions
US7054462B2 (en) 1995-05-08 2006-05-30 Digimarc Corporation Inferring object status based on detected watermark data
US6728390B2 (en) 1995-05-08 2004-04-27 Digimarc Corporation Methods and systems using multiple watermarks
US5808296A (en) 1996-03-22 1998-09-15 Banner Engineering Corporation Programmable detection sensor with means to automatically adjust sensor operating characteristics to optimize performance for both high gain and low contrast applications
US20030040326A1 (en) * 1996-04-25 2003-02-27 Levy Kenneth L. Wireless methods and devices employing steganography
US6018374A (en) 1996-06-25 2000-01-25 Macrovision Corporation Method and system for preventing the off screen copying of a video or film presentation
JP2885721B2 (ja) 1996-09-13 1999-04-26 日本電気アイシーマイコンシステム株式会社 セルラー方式移動体通信システム
US5966441A (en) 1996-11-18 1999-10-12 Apple Computer, Inc. Method and apparatus for creating a secure autonomous network entity of a network component system
US5953424A (en) * 1997-03-18 1999-09-14 Hitachi Data Systems Corporation Cryptographic system and protocol for establishing secure authenticated remote access
TW338865B (en) * 1997-06-03 1998-08-21 Philips Eloctronics N V Authentication system
US5960081A (en) 1997-06-05 1999-09-28 Cray Research, Inc. Embedding a digital signature in a video sequence
JP2965007B2 (ja) 1997-08-11 1999-10-18 日本電気株式会社 携帯電話システム
US6307936B1 (en) 1997-09-16 2001-10-23 Safenet, Inc. Cryptographic key management scheme
GB2329794A (en) 1997-09-26 1999-03-31 Motorola Gmbh Disabling electronic equipment in hazardous areas
US6343213B1 (en) 1997-10-24 2002-01-29 Nortel Networks Limited Method to protect against interference from mobile radios
US6035398A (en) 1997-11-14 2000-03-07 Digitalpersona, Inc. Cryptographic key generation using biometric data
US6496928B1 (en) 1998-01-07 2002-12-17 Microsoft Corporation System for transmitting subscription information and content to a mobile device
US7787514B2 (en) * 1998-02-12 2010-08-31 Lot 41 Acquisition Foundation, Llc Carrier interferometry coding with applications to cellular and local area networks
ES2138557B1 (es) 1998-02-26 2000-08-16 Carballo Jose Maria Pousada Enmascarador de llamadas para telefonia movil.
TW440819B (en) 1998-03-18 2001-06-16 Koninkl Philips Electronics Nv Copy protection schemes for copy protected digital material
JP3252825B2 (ja) 1998-04-17 2002-02-04 日本電気株式会社 携帯電話における自動電波出力制限システム
US6359998B1 (en) * 1998-04-23 2002-03-19 3Com Corporation Method and apparatus for wavelet-based digital watermarking
JP3137079B2 (ja) 1998-06-23 2001-02-19 日本電気株式会社 携帯電話機の強制パワーオフシステムおよび強制パワーオフ方法
US6529600B1 (en) 1998-06-25 2003-03-04 Koninklijke Philips Electronics N.V. Method and device for preventing piracy of video material from theater screens
JP2000032557A (ja) 1998-07-13 2000-01-28 Matsushita Electric Ind Co Ltd 携帯電話利用制限方法
JP2938062B1 (ja) 1998-09-01 1999-08-23 埼玉日本電気株式会社 移動無線通信機
US6115580A (en) * 1998-09-08 2000-09-05 Motorola, Inc. Communications network having adaptive network link optimization using wireless terrain awareness and method for use therein
GB2345214B (en) 1998-10-16 2003-11-05 British Sky Broadcasting Ltd An antenna alignment meter
US7324133B2 (en) 1998-11-06 2008-01-29 Fotomedia Technologies, Llc Method and apparatus for controlled camera useability
JP2000152217A (ja) 1998-11-09 2000-05-30 Toshiba Corp 映像取得制限システム、映像取得許否信号送信装置および映像取得制限装置
JP2000165952A (ja) 1998-11-30 2000-06-16 Sanyo Electric Co Ltd 携帯移動電話機及びその使用規制方法
US6606341B1 (en) * 1999-03-22 2003-08-12 Golden Bridge Technology, Inc. Common packet channel with firm handoff
GB2348573A (en) 1999-04-01 2000-10-04 Motorola Ltd Location dependent disablement of apparatus
US6886017B1 (en) 1999-04-30 2005-04-26 Elata Limited System and method for managing distribution of content to a device
JP2000332890A (ja) 1999-05-21 2000-11-30 Macros Japan Inc 携帯電話着信抑止装置
US6687375B1 (en) 1999-06-02 2004-02-03 International Business Machines Corporation Generating user-dependent keys and random numbers
US6779112B1 (en) * 1999-11-05 2004-08-17 Microsoft Corporation Integrated circuit devices with steganographic authentication, and steganographic authentication methods
US20010031631A1 (en) 2000-01-12 2001-10-18 Pitts Robert L. Secure area communication arrester
EP1117265A1 (en) * 2000-01-15 2001-07-18 Telefonaktiebolaget Lm Ericsson Method and apparatus for global roaming
JP2001202338A (ja) 2000-01-20 2001-07-27 Sony Corp コンテンツ提供システム及びコンテンツ提供方法、コンテンツ提供状況監視装置及び監視方法、並びに、コンテンツ使用装置及び使用方法
US6687497B1 (en) 2000-02-11 2004-02-03 Sony Electronics Inc. Method, system, and structure for disabling a communication device during the occurrence of one or more predetermined conditions
US7457628B2 (en) 2000-02-29 2008-11-25 Smarter Agent, Llc System and method for providing information based on geographic position
EP2271169B1 (en) 2000-03-03 2012-07-04 Qualcomm Incorporated Method and apparatus for participating in group communication services in an existing communication system
DE60129945D1 (de) * 2000-03-24 2007-09-27 Atheros Comm Inc Dekodierungssystem und verfahren für digitale kommunikation
EP1139684A1 (en) 2000-03-30 2001-10-04 Dawoon Syscom Co., Ltd. Apparatus for automatically switching operation mode of portable mobile communication unit
US7447907B2 (en) 2000-04-04 2008-11-04 Ecd Systems, Inc. Method and system for data delivery and reproduction
JP2001313006A (ja) 2000-04-29 2001-11-09 Nishisaka Kiyotaka 赤外光による盗撮防止装置
GB0012445D0 (en) 2000-05-24 2000-07-12 Hewlett Packard Co Location-based equipment control
GB2363504A (en) 2000-06-16 2001-12-19 Nokia Mobile Phones Ltd A mobile phone including a device for preventing loss or theft
US6662023B1 (en) 2000-07-06 2003-12-09 Nokia Mobile Phones Ltd. Method and apparatus for controlling and securing mobile phones that are lost, stolen or misused
US6728323B1 (en) * 2000-07-10 2004-04-27 Ericsson Inc. Baseband processors, mobile terminals, base stations and methods and systems for decoding a punctured coded received signal using estimates of punctured bits
TW529281B (en) 2000-07-12 2003-04-21 Entriq Method and system to uniquely associate multicast content with each of multiple recipients
US6711710B2 (en) * 2000-07-17 2004-03-23 Hughes Electronics Corporation Robust carrier identifying method and apparatus for bandwidth-on-demand (BOD) system
US6594373B1 (en) 2000-07-19 2003-07-15 Digimarc Corporation Multi-carrier watermarks using carrier signals modulated with auxiliary messages
US6771946B1 (en) 2000-07-31 2004-08-03 Michael F. Oyaski Method of preventing cell phone use while vehicle is in motion
JP2002044736A (ja) 2000-07-31 2002-02-08 Nec Corp 音声通話制限機能を備えた携帯電話装置及びシステム
US6492897B1 (en) * 2000-08-04 2002-12-10 Richard A. Mowery, Jr. System for coupling wireless signals to and from a power transmission line communication system
EP1182901A3 (en) 2000-08-21 2002-06-19 Nokia Corporation Mobile telephone and associated method for non-RF mode operation
AU2001290822A1 (en) 2000-09-11 2002-03-26 Digimarc Corporation Authenticating and measuring quality of service of multimedia signals using digital watermark analyses
US6559883B1 (en) 2000-09-27 2003-05-06 David H. Sitrick Movie film security system utilizing infrared patterns
GB2367720B (en) 2000-10-04 2004-08-18 Hewlett Packard Co Method and apparatus for disabling mobile telephones
JP3624149B2 (ja) 2000-10-17 2005-03-02 富士通株式会社 携帯電話の通信制限方法及び妨害装置
US7079480B2 (en) * 2000-10-28 2006-07-18 Agee Brian G Enhancing security and efficiency of wireless communications through structural embedding
US7099699B2 (en) 2000-11-14 2006-08-29 Lg Electronics Inc. Method for preventing illegal use of mobile communication terminal
JP3541801B2 (ja) 2000-11-20 2004-07-14 日本電気株式会社 携帯電話システム及びその端末電源制御方法
WO2002045406A2 (en) 2000-11-22 2002-06-06 Digimarc Corporation Watermark communication and control systems
US7580488B2 (en) * 2000-11-29 2009-08-25 The Penn State Research Foundation Broadband modulation/demodulation apparatus and a method thereof
US6792130B1 (en) 2000-12-13 2004-09-14 Eastman Kodak Company System and method for embedding a watermark signal that contains message data in a digital image
GB2371907A (en) 2001-02-03 2002-08-07 Hewlett Packard Co Controlling the use of portable cameras
US6799052B2 (en) 2001-02-08 2004-09-28 Michael K. Agness Hand-held cellular telephone system with location transmission inhibit
US6664976B2 (en) 2001-04-18 2003-12-16 Digimarc Corporation Image management system and methods using digital watermarks
US6353778B1 (en) 2001-03-15 2002-03-05 International Business Machines Corporation Automobile computer control system for limiting the usage of wireless telephones on moving automobiles
US7068701B2 (en) * 2001-04-16 2006-06-27 Motorola, Inc. Data transmission and reception within a spread-spectrum communication system
GB2374986B (en) 2001-04-25 2005-08-10 Shih Tsung Liang Cable attachment for battery of vehicle
TW567336B (en) * 2001-05-04 2003-12-21 Asulab Sa Radio-frequency signal receiver with means for improving the reception dynamic of said signals
US20020186845A1 (en) 2001-06-11 2002-12-12 Santanu Dutta Method and apparatus for remotely disabling and enabling access to secure transaction functions of a mobile terminal
US7065656B2 (en) * 2001-07-03 2006-06-20 Hewlett-Packard Development Company, L.P. Tamper-evident/tamper-resistant electronic components
CA2454761A1 (en) 2001-07-30 2003-02-13 Cloakware Corporation Secure method and system for handling and distributing digital media
US7162525B2 (en) 2001-08-07 2007-01-09 Nokia Corporation Method and system for visualizing a level of trust of network communication operations and connection of servers
JP2003058173A (ja) 2001-08-09 2003-02-28 Victor Co Of Japan Ltd コンテンツ検索システム
JP2003070058A (ja) 2001-08-22 2003-03-07 Nec Corp 携帯電話システム及び携帯電話端末装置の利用制限方法
US6868229B2 (en) 2001-09-20 2005-03-15 Intel Corporation Interfering with illicit recording activity by emitting non-visible radiation
DE60228989D1 (de) 2001-09-25 2008-10-30 Yashpal Singh System, das ein mobiltelefon automatisch sperrt oder ausschaltet
US6983376B2 (en) * 2001-10-16 2006-01-03 Qualcomm Incorporated Method and apparatus for providing privacy of user identity and characteristics in a communication system
JP2003134562A (ja) 2001-10-23 2003-05-09 Sharp Corp 携帯電話機
JP2003143649A (ja) 2001-10-31 2003-05-16 Nec Access Technica Ltd 携帯電話システム及び携帯電話の不正使用防止方法
US7164649B2 (en) 2001-11-02 2007-01-16 Qualcomm, Incorporated Adaptive rate control for OFDM communication system
US6937843B2 (en) 2001-12-05 2005-08-30 Lucent Technologies Inc. Wireless communication system with interference compensation
US7392394B2 (en) 2001-12-13 2008-06-24 Digimarc Corporation Digital watermarking with variable orientation and protocols
US7260722B2 (en) 2001-12-28 2007-08-21 Itt Manufacturing Enterprises, Inc. Digital multimedia watermarking for source identification
US7080405B2 (en) 2002-01-16 2006-07-18 International Business Machines Corporation Limiting device function
JP2003219466A (ja) 2002-01-17 2003-07-31 Toshiba Eng Co Ltd 携帯電話機の通信規制システム
KR100453683B1 (ko) * 2002-03-15 2004-10-20 한국전자통신연구원 샘플 확장을 이용한 공간영역 블라인드 워터마크 삽입 및검출 방법
US7054624B2 (en) 2002-04-02 2006-05-30 X-Cyte, Inc. Safeguarding user data stored in mobile communications devices
TW567686B (en) * 2002-04-12 2003-12-21 Accton Technology Corp Method and apparatus for cell search for W-CDMA
CN1141835C (zh) 2002-04-19 2004-03-10 中山大学 一种保护多媒体视频数据的方法
US7203527B2 (en) * 2002-05-06 2007-04-10 Via Telecom, Inc. Method and apparatus for reducing power of a CDMA mobile station by controlled transition from control hold to active state
GB0211612D0 (en) 2002-05-21 2002-07-03 Eastman Kodak Co A method and system for the prevention of copyright piracy
US6961562B2 (en) 2002-06-19 2005-11-01 Openwave Systems Inc. Method and apparatus for acquiring, processing, using and brokering location information associated with mobile communication devices
US6928287B2 (en) * 2002-06-28 2005-08-09 Arraycomm, Inc. Efficient broadcast channel structure and use for spatial diversity communications
US7349481B2 (en) * 2002-07-01 2008-03-25 Qualcomm Incorporated Communication using audible tones
JP2004088273A (ja) 2002-08-26 2004-03-18 Nec Engineering Ltd 不正撮影防止システム
GB2393075B (en) 2002-09-10 2004-09-01 Nec Technologies Method and apparatus for selectively disabling mobile electronic equipment
US6904058B2 (en) 2002-09-20 2005-06-07 Intel Corporation Transmitting data over a general packet radio service wireless network
US20040081131A1 (en) * 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
JP4257099B2 (ja) 2002-10-28 2009-04-22 埼玉日本電気株式会社 カメラ機能付き携帯電話機の盗撮防止システム、カメラ機能付き携帯電話機及び盗撮防止方法
JP4095424B2 (ja) 2002-12-09 2008-06-04 キヤノン株式会社 無線ネットワーク構築方法及び無線ネットワーク通信装置
JP4135499B2 (ja) 2002-12-27 2008-08-20 日本電気株式会社 移動通信システムにおける測位システム並びに測位方法
US7134015B2 (en) 2003-01-16 2006-11-07 International Business Machines Corporation Security enhancements for pervasive devices
US20040142750A1 (en) * 2003-01-22 2004-07-22 Acres Gaming Incorporated Method and apparatus for use of a network by a casino
JP4396245B2 (ja) 2003-02-04 2010-01-13 日本電気株式会社 撮影機能付き移動通信端末の動作制限システム及び撮影機能付き移動通信端末
JP2004242096A (ja) 2003-02-06 2004-08-26 Hochiki Corp 携帯型端末装置、携帯型端末装置における盗撮防止方法およびその方法をコンピュータに実行させる盗撮防止プログラム
JP2004260631A (ja) 2003-02-26 2004-09-16 Sony Ericsson Mobilecommunications Japan Inc 携帯端末装置
US20070129012A1 (en) 2003-04-01 2007-06-07 Iceberg Systems Limited Portable digital devices
US7603710B2 (en) 2003-04-03 2009-10-13 Network Security Technologies, Inc. Method and system for detecting characteristics of a wireless network
US6970070B2 (en) 2003-05-08 2005-11-29 Rsa Security Inc. Method and apparatus for selective blocking of radio frequency identification devices
US7499548B2 (en) 2003-06-24 2009-03-03 Intel Corporation Terminal authentication in a wireless network
KR20050000673A (ko) 2003-06-24 2005-01-06 삼성전자주식회사 암호화된 초고속광대역 신호의 송/수신 방법 및 이를 위한초고속광대역 단말
JP4508753B2 (ja) 2003-07-12 2010-07-21 エルジー エレクトロニクス インコーポレイティド 携帯端末機のカメラ撮影制限システム及びその方法
US20050043548A1 (en) 2003-08-22 2005-02-24 Joseph Cates Automated monitoring and control system for networked communications
US7127214B2 (en) 2003-09-23 2006-10-24 Interdigital Technology Corporation User perception of wireless improvement technology
EP1687933B1 (en) 2003-11-27 2017-11-22 Telecom Italia S.p.A. Method, system, network and computer program product for securing administrative transactions over a network
WO2005069836A2 (en) 2004-01-13 2005-08-04 Interdigital Technology Corporation Orthogonal frequency division multiplexing (ofdm) method and apparatus for protecting and authenticating wirelessly transmitted digital information
US20070121939A1 (en) 2004-01-13 2007-05-31 Interdigital Technology Corporation Watermarks for wireless communications
US20050220322A1 (en) * 2004-01-13 2005-10-06 Interdigital Technology Corporation Watermarks/signatures for wireless communications
US7904723B2 (en) 2005-01-12 2011-03-08 Interdigital Technology Corporation Method and apparatus for enhancing security of wireless communications
US7987369B2 (en) * 2005-03-03 2011-07-26 Interdigital Technology Corporation Using watermarking to reduce communication overhead

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