NL164165B - SYSTEM FOR THE SECRET TRANSFER OF MESSAGES. - Google Patents

SYSTEM FOR THE SECRET TRANSFER OF MESSAGES.

Info

Publication number
NL164165B
NL164165B NL7513495.A NL7513495A NL164165B NL 164165 B NL164165 B NL 164165B NL 7513495 A NL7513495 A NL 7513495A NL 164165 B NL164165 B NL 164165B
Authority
NL
Netherlands
Prior art keywords
messages
secret transfer
secret
transfer
Prior art date
Application number
NL7513495.A
Other languages
Dutch (nl)
Other versions
NL164165C (en
NL7513495A (en
Original Assignee
Tekade Felten & Guilleaume
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 Tekade Felten & Guilleaume filed Critical Tekade Felten & Guilleaume
Publication of NL7513495A publication Critical patent/NL7513495A/en
Publication of NL164165B publication Critical patent/NL164165B/en
Application granted granted Critical
Publication of NL164165C publication Critical patent/NL164165C/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)
  • Telephonic Communication Services (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
NL7513495.A 1974-11-23 1975-11-19 SYSTEM FOR THE SECRET TRANSFER OF MESSAGES. NL164165C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2455477A DE2455477C3 (en) 1974-11-23 1974-11-23 Method for concealing speech by interchanging the speech segments over time

Publications (3)

Publication Number Publication Date
NL7513495A NL7513495A (en) 1976-05-25
NL164165B true NL164165B (en) 1980-06-16
NL164165C NL164165C (en) 1980-11-17

Family

ID=5931540

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7513495.A NL164165C (en) 1974-11-23 1975-11-19 SYSTEM FOR THE SECRET TRANSFER OF MESSAGES.

Country Status (10)

Country Link
AT (1) AT343722B (en)
BE (1) BE835826A (en)
CH (1) CH604433A5 (en)
DE (1) DE2455477C3 (en)
DK (1) DK146748C (en)
FR (1) FR2292386A1 (en)
GB (1) GB1515937A (en)
NL (1) NL164165C (en)
SE (1) SE403023B (en)
ZA (1) ZA757335B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2704822C3 (en) * 1977-02-05 1980-10-23 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Method for voice encryption according to the time scrambling method
DE2809719C3 (en) * 1978-03-07 1985-03-14 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Procedure to increase security against unauthorized decryption of encrypted speech
CA1226914A (en) * 1984-01-26 1987-09-15 The University Of British Columbia Modem for pseudo noise communication on a.c. lines

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076733B (en) * 1958-05-29 1960-03-03 Telefunken Gmbh Arrangement to ensure the synchronous operation of the key-character generators on the sending and receiving side during the secret transmission of coded message signals
NL244086A (en) * 1958-12-10
CH402937A (en) * 1961-08-18 1965-11-30 Gretag Ag Method for encrypting messages transmitted in pulses
CH411030A (en) * 1964-08-06 1966-04-15 Patelhold Patentverwertung Device for encrypting a pulse-shaped message
CH435363A (en) * 1965-11-26 1967-05-15 Patelhold Patentverwertung Device for synchronization of pulse generators
CH518658A (en) * 1970-07-07 1972-01-31 Patelhold Patentverwaltungs Un Process for encrypted message transmission by interchanging information elements over time
CH524287A (en) * 1970-09-25 1972-06-15 Patelhold Patentverwertung Method for the automatic setting of a transversal filter for pulse equalization
CH558993A (en) * 1973-03-19 1975-02-14 Patelhold Patentverwertung PROCEDURE AND DEVICE FOR ENCRYPTED MESSAGE TRANSMISSION.
CH559483A5 (en) * 1973-06-12 1975-02-28 Patelhold Patentverwertung
DE2704822C3 (en) * 1977-02-05 1980-10-23 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh, 8500 Nuernberg Method for voice encryption according to the time scrambling method

Also Published As

Publication number Publication date
BE835826A (en) 1976-03-16
ZA757335B (en) 1977-06-29
DK526975A (en) 1976-05-24
FR2292386B1 (en) 1980-02-08
DK146748C (en) 1984-05-28
SE7513112L (en) 1976-05-24
CH604433A5 (en) 1978-09-15
DE2455477A1 (en) 1976-05-26
GB1515937A (en) 1978-06-28
DE2455477B2 (en) 1977-08-25
DK146748B (en) 1983-12-19
ATA888375A (en) 1977-10-15
NL164165C (en) 1980-11-17
NL7513495A (en) 1976-05-25
DE2455477C3 (en) 1982-08-26
AT343722B (en) 1978-06-12
AU8689875A (en) 1977-06-02
SE403023B (en) 1978-07-24
FR2292386A1 (en) 1976-06-18

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee