SG54159A1 - Method and device for speech encryption and decryption in voice transmission - Google Patents

Method and device for speech encryption and decryption in voice transmission

Info

Publication number
SG54159A1
SG54159A1 SG1996002874A SG1996002874A SG54159A1 SG 54159 A1 SG54159 A1 SG 54159A1 SG 1996002874 A SG1996002874 A SG 1996002874A SG 1996002874 A SG1996002874 A SG 1996002874A SG 54159 A1 SG54159 A1 SG 54159A1
Authority
SG
Singapore
Prior art keywords
signal
phase
modulated
pct
receiver end
Prior art date
Application number
SG1996002874A
Other languages
English (en)
Inventor
Wolfram Busching
Erhard Dr Schlenker
Gunter Dr Spahlinger
Original Assignee
Litef Gmbh
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 Litef Gmbh filed Critical Litef Gmbh
Publication of SG54159A1 publication Critical patent/SG54159A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/006—Secret communication by varying or inverting the phase, at periodic or random intervals

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Facsimile Transmission Control (AREA)
  • Radio Relay Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Alarm Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Transmitters (AREA)
SG1996002874A 1993-11-19 1994-11-09 Method and device for speech encryption and decryption in voice transmission SG54159A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4339464A DE4339464C2 (de) 1993-11-19 1993-11-19 Verfahren zur Sprachverschleierung und -entschleierung bei der Sprachübertragung und Einrichtung zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
SG54159A1 true SG54159A1 (en) 1998-11-16

Family

ID=6502948

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996002874A SG54159A1 (en) 1993-11-19 1994-11-09 Method and device for speech encryption and decryption in voice transmission

Country Status (17)

Country Link
US (1) US5778073A (ja)
EP (1) EP0729678B1 (ja)
JP (1) JPH09501291A (ja)
KR (1) KR960706244A (ja)
AT (1) ATE169787T1 (ja)
AU (1) AU8141394A (ja)
CZ (1) CZ143896A3 (ja)
DE (2) DE4339464C2 (ja)
FI (1) FI962106A0 (ja)
HU (1) HUT74262A (ja)
PL (1) PL174895B1 (ja)
RU (1) RU2118059C1 (ja)
SG (1) SG54159A1 (ja)
SK (1) SK63096A3 (ja)
TW (1) TW252241B (ja)
WO (1) WO1995015627A1 (ja)
ZA (1) ZA949167B (ja)

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FI101670B (fi) * 1995-12-15 1998-07-31 Nokia Mobile Phones Ltd Menetelmä matkaviestinverkon ja matkaviestimen välisen tiedonsiirron s alauksen ilmaisemiseksi
US5949878A (en) * 1996-06-28 1999-09-07 Transcrypt International, Inc. Method and apparatus for providing voice privacy in electronic communication systems
JPH10290215A (ja) * 1997-04-15 1998-10-27 Sony Corp データ送受信方法およびデータ送受信装置
DE19746652A1 (de) * 1997-10-22 1999-04-29 Heinz Brych Verfahren zum Senden und Empfangen von Daten und Schaltung zur Durchführung des Verfahrens
US6266412B1 (en) * 1998-06-15 2001-07-24 Lucent Technologies Inc. Encrypting speech coder
US6937977B2 (en) * 1999-10-05 2005-08-30 Fastmobile, Inc. Method and apparatus for processing an input speech signal during presentation of an output audio signal
CA2329889A1 (en) * 2000-12-29 2002-06-29 Barbir Abdulkader Encryption during modulation of signals
US20020173333A1 (en) * 2001-05-18 2002-11-21 Buchholz Dale R. Method and apparatus for processing barge-in requests
DE10215019B4 (de) * 2002-04-05 2007-05-16 Doepke Schaltgeraete Gmbh & Co Vorrichtung zum Erfassen von elektrischen Differenzströmen
KR100428786B1 (ko) * 2001-08-30 2004-04-30 삼성전자주식회사 내부 버스 입출력 데이터를 보호할 수 있는 집적 회로
KR100417125B1 (ko) * 2002-08-07 2004-02-05 주식회사 팬택앤큐리텔 무선통신 단말의 비화통신모드 자동 진입 방법
KR100483462B1 (ko) * 2002-11-25 2005-04-14 삼성전자주식회사 고속 푸리에 변환 장치와, 이를 이용한 고속 푸리에 변환 방법 및 이를 갖는 직교 주파수 분할 다중 변조 방식의 수신장치
US7460624B2 (en) * 2004-03-18 2008-12-02 Motorola, Inc. Method and system of reducing collisions in an asynchronous communication system
EP1619793B1 (en) * 2004-07-20 2015-06-17 Harman Becker Automotive Systems GmbH Audio enhancement system and method
US7804912B2 (en) * 2004-09-23 2010-09-28 Motorola, Inc. Method and apparatus for encryption of over-the-air communications in a wireless communication system
US8170221B2 (en) 2005-03-21 2012-05-01 Harman Becker Automotive Systems Gmbh Audio enhancement system and method
EP1720249B1 (en) 2005-05-04 2009-07-15 Harman Becker Automotive Systems GmbH Audio enhancement system and method
KR100902112B1 (ko) * 2006-11-13 2009-06-09 한국전자통신연구원 키 재동기 구간의 음성 데이터를 예측하기 위한 벡터 정보삽입 방법, 전송 방법 및 벡터 정보를 이용한 키 재동기구간의 음성 데이터 예측 방법
KR100906766B1 (ko) * 2007-06-18 2009-07-09 한국전자통신연구원 키 재동기 구간의 음성 데이터 예측을 위한 음성 데이터송수신 장치 및 방법
US20140047497A1 (en) * 2008-03-12 2014-02-13 Iberium Communications, Inc. Method and system for symbol-rate-independent adaptive equalizer initialization
US20090268910A1 (en) * 2008-04-28 2009-10-29 Samsung Electronics Co., Ltd. Apparatus and method for initialization of a scrambling sequence for a downlink reference signal in a wireless network
JP5212208B2 (ja) * 2009-03-23 2013-06-19 沖電気工業株式会社 受信装置、方法及びプログラム
RU2546614C1 (ru) * 2013-09-26 2015-04-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенский государственный университет" (ФГБОУ ВПО "Пензенский государственный университет") Способ маскирования аналоговых речевых сигналов
TWI631980B (zh) * 2017-07-24 2018-08-11 羽昌國際股份有限公司 Vibration control system for oscillating solid medium
CN110581743B (zh) 2018-06-11 2021-01-22 京东方科技集团股份有限公司 电子设备、时间同步系统及时间同步方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2943115A1 (de) * 1979-10-25 1981-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur synchronisation von teilnehmern in einem funknetz mit relaisstelle
DE3129911C2 (de) * 1981-07-29 1987-03-05 Siemens AG, 1000 Berlin und 8000 München Pseudozufallsgenerator
ATE55523T1 (de) * 1985-06-04 1990-08-15 Siemens Ag Verfahren zur durchfuehrung eines verschluesselten funkverkehrs.
FR2606237B1 (fr) * 1986-10-31 1988-12-09 Trt Telecom Radio Electr Dispositif de cryptophonie analogique a permutations dynamiques de bande
JPH0754926B2 (ja) * 1987-05-11 1995-06-07 沖電気工業株式会社 狭帯域秘話通信方法
EP0313029A1 (de) * 1987-10-21 1989-04-26 Siemens Aktiengesellschaft Österreich Vorrichtung zur verschleierten Übertragung analoger Signale
US5048086A (en) * 1990-07-16 1991-09-10 Hughes Aircraft Company Encryption system based on chaos theory
US5245660A (en) * 1991-02-19 1993-09-14 The United States Of America As Represented By The Secretary Of The Navy System for producing synchronized signals
US5291555A (en) * 1992-12-14 1994-03-01 Massachusetts Institute Of Technology Communication using synchronized chaotic systems
US5379346A (en) * 1993-09-30 1995-01-03 The United States Of America As Represented By The Secretary Of The Navy Cascading synchronized chaotic systems

Also Published As

Publication number Publication date
ZA949167B (en) 1995-07-25
FI962106A (fi) 1996-05-17
EP0729678A1 (de) 1996-09-04
EP0729678B1 (de) 1998-08-12
JPH09501291A (ja) 1997-02-04
US5778073A (en) 1998-07-07
DE4339464C2 (de) 1995-11-16
SK63096A3 (en) 1996-11-06
FI962106A0 (fi) 1996-05-17
RU2118059C1 (ru) 1998-08-20
WO1995015627A1 (de) 1995-06-08
HUT74262A (en) 1996-11-28
PL314289A1 (en) 1996-09-02
CZ143896A3 (en) 1996-11-13
AU8141394A (en) 1995-06-19
ATE169787T1 (de) 1998-08-15
PL174895B1 (pl) 1998-09-30
HU9601333D0 (en) 1996-07-29
DE4339464A1 (de) 1995-05-24
KR960706244A (ko) 1996-11-08
DE59406692D1 (de) 1998-09-17
TW252241B (ja) 1995-07-21

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