BE803834A - Dispositifs de brouillage et de restitution de donnees numeriques - Google Patents

Dispositifs de brouillage et de restitution de donnees numeriques

Info

Publication number
BE803834A
BE803834A BE134779A BE134779A BE803834A BE 803834 A BE803834 A BE 803834A BE 134779 A BE134779 A BE 134779A BE 134779 A BE134779 A BE 134779A BE 803834 A BE803834 A BE 803834A
Authority
BE
Belgium
Prior art keywords
scrambling
digital data
data restitution
restitution devices
devices
Prior art date
Application number
BE134779A
Other languages
English (en)
Inventor
H C Schroeder
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE803834A publication Critical patent/BE803834A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H04L25/03872—Parallel scrambling or descrambling
BE134779A 1972-08-23 1973-08-21 Dispositifs de brouillage et de restitution de donnees numeriques BE803834A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28315972A 1972-08-23 1972-08-23

Publications (1)

Publication Number Publication Date
BE803834A true BE803834A (fr) 1973-12-17

Family

ID=23084787

Family Applications (1)

Application Number Title Priority Date Filing Date
BE134779A BE803834A (fr) 1972-08-23 1973-08-21 Dispositifs de brouillage et de restitution de donnees numeriques

Country Status (10)

Country Link
US (1) US3784743A (fr)
JP (1) JPS5828789B2 (fr)
BE (1) BE803834A (fr)
CA (1) CA953645A (fr)
DE (1) DE2341627C2 (fr)
FR (1) FR2197282B1 (fr)
GB (1) GB1441767A (fr)
IT (1) IT994655B (fr)
NL (1) NL185253C (fr)
SE (1) SE386554B (fr)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176247A (en) * 1973-10-10 1979-11-27 Sperry Rand Corporation Signal scrambler-unscrambler for binary coded transmission system
US3911216A (en) * 1973-12-17 1975-10-07 Honeywell Inf Systems Nonlinear code generator and decoder for transmitting data securely
GB1500132A (en) * 1974-03-07 1978-02-08 Standard Telephones Cables Ltd Multi-level data scramblers and descramblers
US3920894A (en) * 1974-03-11 1975-11-18 Bell Telephone Labor Inc Pseudo-random parallel word generator
US3925611A (en) * 1974-08-12 1975-12-09 Bell Telephone Labor Inc Combined scrambler-encoder for multilevel digital data
US4011408A (en) * 1975-12-17 1977-03-08 Trw Inc. Audio transmission protection apparatus
FR2410921A1 (fr) * 1977-11-30 1979-06-29 Telecommunications Sa Systeme de brouillage et de debrouillage de signaux numeriques
DE2813066C1 (de) * 1978-03-25 1994-07-28 Ant Nachrichtentech Verfahren zur Erzeugung von zufallsähnlichen Chiffrierimpulsfolgen von sehr langer Wiederholungsperiode
JPS5518137A (en) * 1978-07-24 1980-02-08 Nec Corp Privacy system and its device
US4264781A (en) * 1979-04-16 1981-04-28 Ncr Corporation Apparatus for encoding and decoding data signals
US4418275A (en) * 1979-12-07 1983-11-29 Ncr Corporation Data hashing method and apparatus
DE3010969A1 (de) * 1980-03-21 1981-10-01 Siemens AG, 1000 Berlin und 8000 München Pcm-system mit sendeseitigem verwuerfler und empfangsseitigem entwuerfler
JPS57150251A (en) * 1981-03-11 1982-09-17 Nec Corp Code converter
US4447672A (en) * 1980-10-06 1984-05-08 Nippon Electric Co., Ltd. Device for encrypting each input data bit by at least one keying bit decided by a code pattern and a bit pattern of a predetermined number of preceding encrypted bits
DE3225754A1 (de) * 1982-07-09 1984-01-12 Hülsbeck & Fürst GmbH & Co KG, 5620 Velbert Verfahren zur schliesswirksamen wechselwirkung eines schluesselartigen teils mit einem schlossartigen teil
JPS59115640A (ja) * 1982-12-22 1984-07-04 Nec Corp 秘話信号伝送方式
JPS59102288U (ja) * 1982-12-25 1984-07-10 日鐵溶接工業株式会社 被覆剤塗装機の塗装ノズル
JPS59126342A (ja) * 1983-01-10 1984-07-20 Nec Corp デジタル音声信号伝送方式
JPS60210044A (ja) * 1984-04-03 1985-10-22 Nec Corp 誤り訂正符号送受信装置
JPH0727325B2 (ja) * 1987-02-13 1995-03-29 沖電気工業株式会社 暗号化装置
US4852023A (en) * 1987-05-12 1989-07-25 Communications Satellite Corporation Nonlinear random sequence generators
DE3825880C1 (de) * 1988-07-29 1995-12-21 Siemens Ag Schlüsseleinrichtung
US4965881A (en) * 1989-09-07 1990-10-23 Northern Telecom Limited Linear feedback shift registers for data scrambling
JPH04213245A (ja) * 1990-12-10 1992-08-04 Sony Corp スクランブル／デスクランブル回路
US5216714A (en) * 1991-12-13 1993-06-01 3Com Corporation Method and apparatus for controlling the spectral content of a data stream
DE4202682A1 (de) * 1992-01-31 1993-08-05 Sel Alcatel Ag Paralleler additiver scrambler und descrambler
KR940009843B1 (ko) * 1992-02-07 1994-10-17 이병기 병렬 스크램블링 시스템
KR950008397B1 (ko) * 1992-04-21 1995-07-28 이병기 분산 표본 스크램블링 시스템
JPH1041830A (ja) * 1996-07-24 1998-02-13 Matsushita Electric Ind Co Ltd 誤り訂正符号化回路とそれを用いた変調装置
US5946398A (en) * 1997-03-25 1999-08-31 Level One Communications, Inc. State synchronized cipher text scrambler
DE19715644A1 (de) * 1997-04-15 1998-10-22 Iks Gmbh Information Kommunika Verfahren zur Identitätsprüfung
US6122376A (en) * 1997-08-28 2000-09-19 Level One Communications, Inc. State synchronized cipher text scrambler
US6888943B1 (en) * 1998-04-21 2005-05-03 Verance Corporation Multimedia adaptive scrambling system (MASS)
KR20010034802A (ko) * 1998-04-21 2001-04-25 로버트 엘. 워렌 멀티미디어 적응형 스크램블링 시스템
US6760442B1 (en) * 1998-12-18 2004-07-06 Sun Microsystems, Inc. Method and apparatus for adjusting the quality of digital media
JP2003244132A (ja) * 2002-02-18 2003-08-29 Mitsubishi Electric Corp スクランブラおよびデスクランブラ
WO2003096604A1 (fr) * 2002-05-06 2003-11-20 Paradyne Corporation Dispositif et procede de communications utilisant un brouillage sans auto-synchronisation dans un systeme de communications
JP2004088505A (ja) * 2002-08-27 2004-03-18 Matsushita Electric Ind Co Ltd 並列ストリーム暗復号装置及びその方法並びに並列ストリーム暗復号プログラム
US7415112B2 (en) * 2002-09-18 2008-08-19 Zarbana Digital Fund Llc Parallel scrambler/descrambler
JP4254201B2 (ja) * 2002-10-31 2009-04-15 ソニー株式会社 スクランブラ、送信装置および受信装置
US20050047512A1 (en) * 2003-08-28 2005-03-03 Neff Robert M. R. System and method using self-synchronized scrambling for reducing coherent interference
US6933862B2 (en) * 2003-10-14 2005-08-23 Agilent Technologies, Inc. Power consumption stabilization system and method
US7129859B2 (en) * 2004-07-22 2006-10-31 International Business Machines Corporation Method and apparatus for minimizing threshold variation from body charge in silicon-on-insulator circuitry
TW200615868A (en) * 2004-11-05 2006-05-16 Synaptic Lab Ltd A method of encoding a signal
EP1833167B8 (fr) * 2006-03-07 2012-06-06 Advantest (Singapore) Pte. Ltd. Décorrelation des données en utilisant ces données
JP6883446B2 (ja) * 2017-03-02 2021-06-09 株式会社ミツトヨ 昇降駆動装置およびこれを用いた測定機
CN113115113B (zh) * 2021-03-17 2023-05-09 Tcl华星光电技术有限公司 扰码装置及扰码方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304962A (en) * 1965-08-25 1981-12-08 Bell Telephone Laboratories, Incorporated Data scrambler
FR1463957A (fr) * 1965-11-08 1966-07-22 Csf Système de chiffrement pour liaison multiplex
US3510297A (en) * 1966-05-05 1970-05-05 Ibm Process for producing negative transparencies
US3515805A (en) * 1967-02-06 1970-06-02 Bell Telephone Labor Inc Data scrambler
CH516854A (de) * 1969-11-29 1971-12-15 Ciba Geigy Ag Verfahren und Vorrichtung zur chiffrierten Übermittlung von Informationen
FR2172459A5 (fr) * 1972-02-11 1973-09-28 Alsthom Cgee

Also Published As

Publication number Publication date
US3784743A (en) 1974-01-08
JPS5828789B2 (ja) 1983-06-17
FR2197282A1 (fr) 1974-03-22
GB1441767A (en) 1976-07-07
DE2341627A1 (de) 1974-03-14
NL7311383A (fr) 1974-02-26
SE386554B (sv) 1976-08-09
CA953645A (en) 1974-08-27
IT994655B (it) 1975-10-20
FR2197282B1 (fr) 1979-01-26
NL185253C (nl) 1990-02-16
NL185253B (nl) 1989-09-18
JPS4965114A (fr) 1974-06-24
DE2341627C2 (de) 1982-10-14

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: WESTERN ELECTRIC CY INC.

Effective date: 19910831