DK0524235T3 - - Google Patents

Info

Publication number
DK0524235T3
DK0524235T3 DK91907631.5T DK91907631T DK0524235T3 DK 0524235 T3 DK0524235 T3 DK 0524235T3 DK 91907631 T DK91907631 T DK 91907631T DK 0524235 T3 DK0524235 T3 DK 0524235T3
Authority
DK
Denmark
Prior art keywords
pct
prbs
binary sequence
generator
sec
Prior art date
Application number
DK91907631.5T
Other languages
Danish (da)
English (en)
Inventor
Andrew Robert Cook
David Wynford Westlan Faulkner
Original Assignee
British Telecomm
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 British Telecomm filed Critical British Telecomm
Application granted granted Critical
Publication of DK0524235T3 publication Critical patent/DK0524235T3/da

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0602Systems characterised by the synchronising information used
    • H04J3/0605Special codes used as synchronising signal
    • H04J3/0611PN codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Power Conversion In General (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Eye Examination Apparatus (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Television Systems (AREA)
DK91907631.5T 1990-04-10 1991-04-10 DK0524235T3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909008151A GB9008151D0 (en) 1990-04-10 1990-04-10 Data communication

Publications (1)

Publication Number Publication Date
DK0524235T3 true DK0524235T3 (fr) 1997-02-10

Family

ID=10674233

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91907631.5T DK0524235T3 (fr) 1990-04-10 1991-04-10

Country Status (13)

Country Link
US (1) US5283831A (fr)
EP (1) EP0524235B1 (fr)
JP (1) JPH05505919A (fr)
AT (1) ATE142067T1 (fr)
CA (1) CA2072260C (fr)
DE (1) DE69121708T2 (fr)
DK (1) DK0524235T3 (fr)
ES (1) ES2091923T3 (fr)
FI (1) FI924512A0 (fr)
GB (1) GB9008151D0 (fr)
HK (1) HK109497A (fr)
NO (1) NO304868B1 (fr)
WO (1) WO1991015910A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05210481A (ja) * 1991-09-18 1993-08-20 Ncr Internatl Inc 直接アクセス式ビデオバス
KR950013847B1 (ko) * 1993-03-18 1995-11-16 한국전기통신공사 셀 기반 병렬 비동기 전달 모드(atm) 물리계층의 역혼화를 위한 병렬 분산 표본 역혼화 회로
DE4415288A1 (de) * 1994-04-30 1995-11-02 Ant Nachrichtentech Verfahren zur Aufbereitung und Wiedergewinnung von Daten sowie Anordnung hierzu
US5881154A (en) * 1995-01-17 1999-03-09 Kokusai Denshin Denwa Co., Ltd. Data scramble transmission system
US5995630A (en) * 1996-03-07 1999-11-30 Dew Engineering And Development Limited Biometric input with encryption
US5784422A (en) * 1996-08-05 1998-07-21 Transcrypt International, Inc. Apparatus and method for accurate synchronization with inbound data packets at relatively low sampling rates
US6658113B1 (en) 1997-11-18 2003-12-02 Transcrypt International, Inc. Apparatus and method for concealing data bursts in an analog scrambler using audio repetition
GB2342015B (en) * 1998-09-23 2003-11-05 Sony Uk Ltd Synchronising digital signals
DE19860125A1 (de) 1998-12-17 2000-06-21 Deutsche Telekom Ag Verfahren und Anordnung für Bitfehlerstruktur-Messungen von Datenübertragungskanälen
US6557136B1 (en) * 1999-11-10 2003-04-29 Maxtor Corporation Method and system for limiting the maximum number of consecutive zeroes in a block for communications or storage
KR100424538B1 (ko) * 2001-05-29 2004-03-27 엘지전자 주식회사 이동통신시스템에서의 스크램블링 코드 생성 장치 및 방법
US6907062B2 (en) * 2001-08-06 2005-06-14 Broadcom Corporation PRBS generator selection in modem communication
US6973188B1 (en) 2002-02-25 2005-12-06 Lockheed Martin Corporation Analog scrambler
EP1505763A4 (fr) * 2002-05-10 2012-11-07 Sony Corp Dispositif de chiffrement et dispositif de dechiffrement
US7412640B2 (en) 2003-08-28 2008-08-12 International Business Machines Corporation Self-synchronizing pseudorandom bit sequence checker
US7301482B1 (en) * 2003-12-12 2007-11-27 Marvell International Ltd. Circuits, architectures, systems, methods, algorithms and software for conditional modulation coding
TWI273259B (en) * 2004-11-09 2007-02-11 Via Tech Inc Built-in test architecture
US7509568B2 (en) * 2005-01-11 2009-03-24 International Business Machines Corporation Error type identification circuit for identifying different types of errors in communications devices
KR101443575B1 (ko) * 2013-04-29 2014-09-23 한국전자통신연구원 이진 난수열을 정수 난수로 변환하는 장치 및 방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383322A (en) * 1980-05-02 1983-05-10 Harris Corporation Combined use of PN sequence for data scrambling and frame synchronization in digital communication systems
NO159229C (no) * 1982-05-11 1988-12-07 Tandem Computers Inc Omkasteranordning for digitalt transmisjonssystem.
DE3238973A1 (de) * 1982-10-21 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Verfahren zur digitalen nachrichtenuebertragung
DE3312400A1 (de) * 1983-03-25 1984-09-27 Siemens AG, 1000 Berlin und 8000 München Verfahren zur uebertragung von binaersignalen mindestens zweier kanaele
JP2577999B2 (ja) * 1989-09-28 1997-02-05 クラリオン株式会社 擬似雑音符号発生装置における先頭又は任意ビットパルス生成回路およびサンプリングパルス生成回路
US5068872A (en) * 1989-11-27 1991-11-26 Raytheon Company Apparatus and method for short cycling sequences of a p-code generator
SE465797B (sv) * 1990-03-07 1991-10-28 Ericsson Telefon Ab L M Foerfarande att oeverfoera synkroniseringsinformation vid krypterad oeverfoering i ett mobilradiosystem

Also Published As

Publication number Publication date
ES2091923T3 (es) 1996-11-16
EP0524235A1 (fr) 1993-01-27
DE69121708T2 (de) 1997-02-20
NO304868B1 (no) 1999-02-22
HK109497A (en) 1997-08-22
ATE142067T1 (de) 1996-09-15
CA2072260A1 (fr) 1991-10-11
FI924512A (fi) 1992-10-07
WO1991015910A1 (fr) 1991-10-17
US5283831A (en) 1994-02-01
FI924512A0 (fi) 1992-10-07
EP0524235B1 (fr) 1996-08-28
DE69121708D1 (de) 1996-10-02
JPH05505919A (ja) 1993-08-26
CA2072260C (fr) 1996-12-10
GB9008151D0 (en) 1990-06-06
NO923933L (no) 1992-10-09
NO923933D0 (no) 1992-10-09

Similar Documents

Publication Publication Date Title
DK0524235T3 (fr)
CA2194919A1 (fr) Brouilleur de paquets a synchronisation automatique
EP0422230A4 (en) Data carrier and data communication apparatus using the same
TW335581B (en) Communication system and communication method
EP0132007A1 (fr) Signaux codés pour autorisation
AU638230B2 (en) Pay television system using a memory card associated with a decoder
CA2142842A1 (fr) Methode et appareil de transmission et de reception de donnees codees
ES2103292T3 (es) Sistema para transmitir y recibir señales de television codificadas.
MY138048A (en) Communication system
GB2258373B (en) System to prevent a scrambler from generating undesired symbols
GB2258374A (en) Adjusting the level of an audio signal
EP0284281A3 (fr) Appareil pour le codage bidimensionnel de données d'image en données codées fac-similé
KR890000101B1 (ko) 의사 난수 순차 발생기를 사용하는 결합된 스크램블러-인코오더
GB2155281A (en) Probabilistic scrambler and method of probabilistic scrambling
EP0131919A3 (fr) Système de parole confidentiel
KR0160456B1 (ko) 합성 비디오 신호 스크램블링 및 언 스크램블링 방법과 그 장치
GB2019071A (en) Data Transmission Apparatus
JPS6432545A (en) Data transmission system
JPS645242A (en) Bit scramble circuit
Fair et al. Guided scrambling: a new line coding technique for optical fiber communication systems
SE9600256L (sv) Digital överföring på parallell optik länk
IT1247607B (it) Metodo e apparato per trasmettere serie di dati riservati mediante rete di trasmissione televisiva
JPS57116480A (en) Facsimile equipment
YEH Method for coding low entrophy data(Patent)
KR950007547A (ko) 방송신호의 스크램블링 / 디스크램블링 회로