NL6906145A - - Google Patents

Info

Publication number
NL6906145A
NL6906145A NL6906145A NL6906145A NL6906145A NL 6906145 A NL6906145 A NL 6906145A NL 6906145 A NL6906145 A NL 6906145A NL 6906145 A NL6906145 A NL 6906145A NL 6906145 A NL6906145 A NL 6906145A
Authority
NL
Netherlands
Prior art keywords
bits
message
scrambled
quasi
gate
Prior art date
Application number
NL6906145A
Other languages
English (en)
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 filed Critical
Publication of NL6906145A publication Critical patent/NL6906145A/xx

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
NL6906145A 1968-05-15 1969-04-21 NL6906145A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1649268 1968-05-15

Publications (1)

Publication Number Publication Date
NL6906145A true NL6906145A (ja) 1969-11-18

Family

ID=11148906

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6906145A NL6906145A (ja) 1968-05-15 1969-04-21

Country Status (3)

Country Link
US (1) US3659046A (ja)
DE (1) DE1924676A1 (ja)
NL (1) NL6906145A (ja)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3764742A (en) * 1971-12-23 1973-10-09 Ibm Cryptographic identification system
US3809817A (en) * 1972-02-14 1974-05-07 Avantek Asynchronous quadriphase communications system and method
US3808536A (en) * 1972-04-12 1974-04-30 Gen Electric Co Ltd Communication scrambler system
US3852534A (en) * 1973-06-07 1974-12-03 Us Army Method and apparatus for synchronizing pseudorandom coded data sequences
US3909534A (en) * 1973-09-07 1975-09-30 Boeing Co Voice privacy unit for intercommunication systems
US3956589A (en) * 1973-11-26 1976-05-11 Paradyne Corporation Data telecommunication system
US4087642A (en) * 1974-05-07 1978-05-02 International Standard Electric Corporation Digital data communication system
CH578807A5 (ja) * 1974-11-05 1976-08-13 Patelhold Patentverwertung
US4091423A (en) * 1975-03-17 1978-05-23 Datotek, Inc. Synchronous digital data scrambling system
GB1558168A (en) * 1975-06-20 1979-12-19 Indep Television Co Systems for broadcasting data simultaneously with but independently of television programmes
US4133974A (en) * 1976-11-05 1979-01-09 Datotek, Inc. System for locally enciphering prime data
US4286333A (en) * 1977-08-27 1981-08-25 E M I Limited Data transmission
US4188580A (en) * 1977-10-20 1980-02-12 Telesync Corporation Secure communication system
US4341925A (en) * 1978-04-28 1982-07-27 Nasa Random digital encryption secure communication system
FR2439436A1 (fr) * 1978-10-18 1980-05-16 Chateau Michel Procede de dialogue entre un ordinateur et un de ses utilisateurs et application de ce procede aux paiements bancaires ou analogues
DE2908979C3 (de) * 1979-03-08 1982-03-18 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur verschlüsselten Übertragung von Faksimile-Daten
JPS5644238A (en) * 1979-09-20 1981-04-23 Fujitsu Ltd Supervisory circuit of reverse diffusion device
FR2469760A1 (fr) * 1979-11-09 1981-05-22 Cii Honeywell Bull Procede et systeme d'identification de personnes demandant l'acces a certains milieux
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US4484027A (en) * 1981-11-19 1984-11-20 Communications Satellite Corporation Security system for SSTV encryption
USRE33189E (en) * 1981-11-19 1990-03-27 Communications Satellite Corporation Security system for SSTV encryption
US4608455A (en) * 1982-04-05 1986-08-26 Bell Telephone Laboratories, Incorporated Processing of encrypted voice signals
US4811394A (en) * 1982-07-28 1989-03-07 Communications Satellite Corporation Variable starting state scrambling circuit
DE3380142D1 (en) * 1982-07-28 1989-08-03 Communications Satellite Corp Communications systems and transmitters and receivers including scrambling devices
US4634808A (en) * 1984-03-15 1987-01-06 M/A-Com Government Systems, Inc. Descrambler subscriber key production system utilizing key seeds stored in descrambler
US4742544A (en) * 1984-07-09 1988-05-03 Kupnicki Richard A Television transmission network with scrambling and descrambling
USH2069H1 (en) 1984-12-21 2003-07-01 The United States Of America As Represented By The Secretary Of The Navy Signal processor
US4817148A (en) * 1987-07-06 1989-03-28 Wegener Communications, Inc. Signal scrambling transmission system
US5003599A (en) * 1989-02-07 1991-03-26 Simulation Laboratories, Inc. In-band framing method and apparatus
US5581614A (en) * 1991-08-19 1996-12-03 Index Systems, Inc. Method for encrypting and embedding information in a video program
MY152148A (en) * 2008-11-14 2014-08-15 Mimos Berhad Method and system for synchronization of cryptographic devices for gsm voice channel encryption
US8583042B2 (en) * 2010-09-30 2013-11-12 St-Ericsson Sa Channel randomization for backoff efficiency improvement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439820A (de) * 1964-11-06 1967-07-15 Gretag Ag Verfahren und Einrichtung zur Ver- und Entschlüsselung von Nachrichtensignalen

Also Published As

Publication number Publication date
US3659046A (en) 1972-04-25
DE1924676A1 (de) 1969-12-11

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