IL44440A - Method and device for coded transmission of messages - Google Patents

Method and device for coded transmission of messages

Info

Publication number
IL44440A
IL44440A IL44440A IL4444074A IL44440A IL 44440 A IL44440 A IL 44440A IL 44440 A IL44440 A IL 44440A IL 4444074 A IL4444074 A IL 4444074A IL 44440 A IL44440 A IL 44440A
Authority
IL
Israel
Prior art keywords
elements
retarder
output
pulses
input
Prior art date
Application number
IL44440A
Other languages
English (en)
Hebrew (he)
Other versions
IL44440A0 (en
Original Assignee
Patelhold Patentverwertung
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 Patelhold Patentverwertung filed Critical Patelhold Patentverwertung
Publication of IL44440A0 publication Critical patent/IL44440A0/xx
Publication of IL44440A publication Critical patent/IL44440A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/06—Secret communication by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Complex Calculations (AREA)
IL44440A 1973-03-19 1974-03-18 Method and device for coded transmission of messages IL44440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH387673A CH558993A (de) 1973-03-19 1973-03-19 Verfahren und einrichtung zur verschluesselten nachrichtenuebertragung.

Publications (2)

Publication Number Publication Date
IL44440A0 IL44440A0 (en) 1974-06-30
IL44440A true IL44440A (en) 1976-09-30

Family

ID=4265379

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44440A IL44440A (en) 1973-03-19 1974-03-18 Method and device for coded transmission of messages

Country Status (10)

Country Link
US (1) US3970790A (xx)
JP (1) JPS5824983B2 (xx)
CH (1) CH558993A (xx)
DE (1) DE2321902C2 (xx)
FR (1) FR2222809B1 (xx)
GB (1) GB1458698A (xx)
IL (1) IL44440A (xx)
NL (1) NL7403484A (xx)
SE (1) SE393724B (xx)
ZA (1) ZA741739B (xx)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455477C3 (de) * 1974-11-23 1982-08-26 TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Verfahren zur Sprachverschleierung durch zeitliches Vertauschen der Sprachabschnitte
CH581412A5 (xx) * 1975-02-26 1976-10-29 Patelhold Patentverwertung
JPS52153302A (en) * 1976-06-15 1977-12-20 Mitsubishi Electric Corp Privacy telephone set
US4087626A (en) * 1976-08-04 1978-05-02 Rca Corporation Scrambler and unscrambler for serial data
US4100374A (en) * 1977-04-11 1978-07-11 Bell Telephone Laboratories, Incorporated Uniform permutation privacy system
DE2834316A1 (de) * 1978-08-04 1980-02-28 Siemens Ag Anordnung zur durchfuehrung einer verschleierten uebertragung von informationen
US4352129A (en) * 1980-02-01 1982-09-28 Independent Broadcasting Authority Digital recording apparatus
US4443660A (en) * 1980-02-04 1984-04-17 Rockwell International Corporation System and method for encrypting a voice signal
US4388849A (en) * 1980-02-08 1983-06-21 Sony Corporation Signal processing system
DE3138023A1 (de) * 1981-09-24 1983-04-07 Robert Bosch Gmbh, 7000 Stuttgart Pulscodemodulationssystem
US4965825A (en) 1981-11-03 1990-10-23 The Personalized Mass Media Corporation Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods
US7831204B1 (en) 1981-11-03 2010-11-09 Personalized Media Communications, Llc Signal processing apparatus and methods
US4433211A (en) * 1981-11-04 1984-02-21 Technical Communications Corporation Privacy communication system employing time/frequency transformation
DE3207040A1 (de) * 1982-02-26 1983-09-08 Siemens AG, 1000 Berlin und 8000 München Vefahren und anordnung zum uebertragen von zeichen
US4661980A (en) * 1982-06-25 1987-04-28 The United States Of America As Represented By The Secretary Of The Navy Intercept resistant data transmission system
US4551580A (en) * 1982-11-22 1985-11-05 At&T Bell Laboratories Time-frequency scrambler
US4608456A (en) * 1983-05-27 1986-08-26 M/A-Com Linkabit, Inc. Digital audio scrambling system with error conditioning
US4594587A (en) * 1983-08-30 1986-06-10 Zenith Electronics Corporation Character oriented RAM mapping system and method therefor
GB2204975B (en) * 1987-05-19 1990-11-21 Gen Electric Co Plc Authenticator
CA1288182C (en) * 1987-06-02 1991-08-27 Mitsuhiro Azuma Secret speech equipment
DE3812665A1 (de) * 1988-04-15 1989-10-26 Siemens Ag Verfahren zur uebertragung von videosignalen
US4916435A (en) * 1988-05-10 1990-04-10 Guardian Technologies, Inc. Remote confinement monitoring station and system incorporating same
US5109384A (en) * 1988-11-02 1992-04-28 Tseung Lawrence C N Guaranteed reliable broadcast network
DE4016203A1 (de) * 1990-05-19 1991-11-21 Rolf Prof Dr Trautner Verfahren zur blockweisen chiffrierung von digitalen daten
DE69737773D1 (de) 1997-11-28 2007-07-12 Alexandr Andreevich Moldovyan Verfahren zur kryptographischen Umwandlung von L-Bit Eingangsblöcken von digitalen Daten in L-Bit Ausgangsblöcke
GB2363949A (en) * 2000-06-19 2002-01-09 Martyn Gilbert Secure communication method
DE10138650A1 (de) 2001-08-07 2003-02-27 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Verschlüsseln eines diskreten Signals sowie Verfahren und Vorrichtung zur Entschlüsselung
US7930331B2 (en) * 2005-09-26 2011-04-19 Temarylogic Llc Encipherment of digital sequences by reversible transposition methods
US8577026B2 (en) 2010-12-29 2013-11-05 Ternarylogic Llc Methods and apparatus in alternate finite field based coders and decoders
US20110064214A1 (en) * 2003-09-09 2011-03-17 Ternarylogic Llc Methods and Apparatus in Alternate Finite Field Based Coders and Decoders
US10665941B2 (en) 2013-03-15 2020-05-26 Teqnovations, LLC Active, electronically scanned array antenna
US9350074B2 (en) * 2013-03-15 2016-05-24 Teqnovations, LLC Active, electronically scanned array antenna

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1981113A (en) * 1933-03-03 1934-11-20 American Telephone & Telegraph Privacy system
CH232786A (de) * 1939-07-14 1944-06-15 Patelhold Patentverwertung Einrichtung zur geheimen Nachrichtenübermittlung.
CH237094A (de) * 1939-07-26 1945-03-31 Patelhold Patentverwertung Verfahren und Einrichtung zur Übermittlung von geheimzuhaltenden Nachrichten.
CH212742A (de) * 1939-10-02 1940-12-15 Bbc Brown Boveri & Cie Verfahren und Einrichtung zur Übermittlung von Nachrichten.
US2401464A (en) * 1942-11-20 1946-06-04 American Telephone & Telegraph Privacy system
BE516210A (xx) * 1951-12-20
NL244086A (xx) * 1958-12-10
FR1276733A (fr) * 1960-10-10 1961-11-24 Electronique & Automatisme Sa Dispositif de téléphonie confidentielle
US3731197A (en) * 1969-12-15 1973-05-01 Ritt Lab Inc Secrecy communication system
US3657699A (en) * 1970-06-30 1972-04-18 Ibm Multipath encoder-decoder arrangement
CH518658A (de) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Verfahren zur verschlüsselten Nachrichtenübermittlung durch zeitliche Vertauschung von Informationselementen
US3796830A (en) * 1971-11-02 1974-03-12 Ibm Recirculating block cipher cryptographic system
GB1353693A (en) * 1971-12-02 1974-05-22 Mullard Ltd Privacy transmission system

Also Published As

Publication number Publication date
IL44440A0 (en) 1974-06-30
FR2222809A1 (xx) 1974-10-18
JPS5824983B2 (ja) 1983-05-24
CH558993A (de) 1975-02-14
NL7403484A (xx) 1974-09-23
DE2321902A1 (de) 1974-09-26
GB1458698A (en) 1976-12-15
ZA741739B (en) 1975-04-30
SE393724B (sv) 1977-05-16
FR2222809B1 (xx) 1977-09-30
DE2321902C2 (de) 1982-11-11
US3970790A (en) 1976-07-20
JPS49128604A (xx) 1974-12-10

Similar Documents

Publication Publication Date Title
IL44440A (en) Method and device for coded transmission of messages
EP1487111B1 (en) Conversion employing delta-sigma modulation
US20180302048A1 (en) Radio frequency amplifier
US6642864B1 (en) Method and apparatus for encoding/decoding N-bit data into 2N-bit codewords
CA1214881A (en) Digital transmission systems
FI901207A0 (fi) PCM-viestijärjestelmä
US2738463A (en) Pulse code expander
GB386676A (en) Improvements in or relating to secret telegraphic systems
EP1043839A3 (en) Reduction of aperture distortion in parallel A/D converters
KR890016856A (ko) 비데오 신호 송신시스템 및 상기 시스템에 적합한 송,수신기
JPS55134576A (en) Still picture transmission system
US2839727A (en) Encoder for pulse code modulation
JPH01181362A (ja) スミアリングフィルタを具えるデータ伝送システム
GB2038143A (en) Circuit arrangements for converting binary digital signals to pseudo-ternary alternating pulses
US3161828A (en) Communication system employing phase shifters and quantizers to reduce noise
CA2032597A1 (en) Method of processing the signalling information within configurable multiplexers
JPS5792985A (en) High-efficiency forecast encoding device
EP0667058B1 (en) A method and a device for a changeover of asynchronous clock signals
SU1538266A1 (ru) Устройство дл формировани линейного сигнала
RU2000124174A (ru) Устройство для кодирования n-битовых исходных слов в соответствующие m-битовые канальные слова и декодирования m-битовых канальных слов в соответствующие n-битовые исходные слова
SU1169186A1 (ru) Датчик тестовых сигналов коротковолновых радиотрактов
SU1069177A1 (ru) Система цифровой передачи и приема звуковых сигналов
JPH04349720A (ja) Ａ／ｄ変換器
SU1534481A1 (ru) Способ передачи и приема цифровой информации и устройство дл его осуществлени
TW259907B (en) Digital ring oscillator