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FR2292386A1 - SPEECH SAVING PROCESS BY TIME EXCHANGE OF SPEECH SECTIONS - Google Patents

SPEECH SAVING PROCESS BY TIME EXCHANGE OF SPEECH SECTIONS

Info

Publication number
FR2292386A1
FR2292386A1 FR7535581A FR7535581A FR2292386A1 FR 2292386 A1 FR2292386 A1 FR 2292386A1 FR 7535581 A FR7535581 A FR 7535581A FR 7535581 A FR7535581 A FR 7535581A FR 2292386 A1 FR2292386 A1 FR 2292386A1
Authority
FR
France
Prior art keywords
speech
saving process
time exchange
sections
speech sections
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7535581A
Other languages
French (fr)
Other versions
FR2292386B1 (en
Inventor
Klaus Kirschner
Jorg Robra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tekade Felten and Guilleaume Fernmeldeanlagen GmbH
Original Assignee
Tekade Felten and Guilleaume Fernmeldeanlagen GmbH
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 and Guilleaume Fernmeldeanlagen GmbH filed Critical Tekade Felten and Guilleaume Fernmeldeanlagen GmbH
Publication of FR2292386A1 publication Critical patent/FR2292386A1/en
Application granted granted Critical
Publication of FR2292386B1 publication Critical patent/FR2292386B1/fr
Granted legal-status Critical Current

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)
FR7535581A 1974-11-23 1975-11-21 SPEECH SAVING PROCESS BY TIME EXCHANGE OF SPEECH SECTIONS Granted FR2292386A1 (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 (2)

Publication Number Publication Date
FR2292386A1 true FR2292386A1 (en) 1976-06-18
FR2292386B1 FR2292386B1 (en) 1980-02-08

Family

ID=5931540

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535581A Granted FR2292386A1 (en) 1974-11-23 1975-11-21 SPEECH SAVING PROCESS BY TIME EXCHANGE OF SPEECH SECTIONS

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379948A1 (en) * 1977-02-05 1978-09-01 Tekade Felten & Guilleaume SPEECH CODING PROCESS FOLLOWING THE TEMPORARY JAMMING PROCEDURE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222809A1 (en) * 1973-03-19 1974-10-18 Patelhold Patentverwertung

Family Cites Families (9)

* 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
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222809A1 (en) * 1973-03-19 1974-10-18 Patelhold Patentverwertung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2379948A1 (en) * 1977-02-05 1978-09-01 Tekade Felten & Guilleaume SPEECH CODING PROCESS FOLLOWING THE TEMPORARY JAMMING PROCEDURE

Also Published As

Publication number Publication date
ATA888375A (en) 1977-10-15
ZA757335B (en) 1977-06-29
SE7513112L (en) 1976-05-24
NL164165C (en) 1980-11-17
CH604433A5 (en) 1978-09-15
AU8689875A (en) 1977-06-02
GB1515937A (en) 1978-06-28
DE2455477C3 (en) 1982-08-26
DK526975A (en) 1976-05-24
AT343722B (en) 1978-06-12
DK146748B (en) 1983-12-19
NL164165B (en) 1980-06-16
SE403023B (en) 1978-07-24
FR2292386B1 (en) 1980-02-08
NL7513495A (en) 1976-05-25
BE835826A (en) 1976-03-16
DE2455477A1 (en) 1976-05-26
DK146748C (en) 1984-05-28
DE2455477B2 (en) 1977-08-25

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Legal Events

Date Code Title Description
ST Notification of lapse