DK271481A - PROCEDURE FOR TRANSFORMING LANGUAGE SIGNALS SUBJECT TO SIGNAL SECTION AND APPARATUS FOR EXERCISING THE PROCEDURE - Google Patents

PROCEDURE FOR TRANSFORMING LANGUAGE SIGNALS SUBJECT TO SIGNAL SECTION AND APPARATUS FOR EXERCISING THE PROCEDURE

Info

Publication number
DK271481A
DK271481A DK271481A DK271481A DK271481A DK 271481 A DK271481 A DK 271481A DK 271481 A DK271481 A DK 271481A DK 271481 A DK271481 A DK 271481A DK 271481 A DK271481 A DK 271481A
Authority
DK
Denmark
Prior art keywords
procedure
exercising
signal section
signals subject
language signals
Prior art date
Application number
DK271481A
Other languages
Danish (da)
Inventor
M Caflisch
R Weber
Original Assignee
Crypto Ag
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 Crypto Ag filed Critical Crypto Ag
Publication of DK271481A publication Critical patent/DK271481A/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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Communication Control (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Time-Division Multiplex Systems (AREA)
DK271481A 1980-06-20 1981-06-19 PROCEDURE FOR TRANSFORMING LANGUAGE SIGNALS SUBJECT TO SIGNAL SECTION AND APPARATUS FOR EXERCISING THE PROCEDURE DK271481A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH476380 1980-06-20

Publications (1)

Publication Number Publication Date
DK271481A true DK271481A (en) 1981-12-21

Family

ID=4282095

Family Applications (1)

Application Number Title Priority Date Filing Date
DK271481A DK271481A (en) 1980-06-20 1981-06-19 PROCEDURE FOR TRANSFORMING LANGUAGE SIGNALS SUBJECT TO SIGNAL SECTION AND APPARATUS FOR EXERCISING THE PROCEDURE

Country Status (10)

Country Link
EP (1) EP0042587B1 (en)
JP (1) JPS5729100A (en)
AR (1) AR228273A1 (en)
AT (1) ATE7993T1 (en)
BR (1) BR8103891A (en)
DE (1) DE3164136D1 (en)
DK (1) DK271481A (en)
ES (1) ES8303853A1 (en)
FI (1) FI811862L (en)
NO (1) NO812082L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59111441A (en) * 1982-12-17 1984-06-27 Sony Corp Privacy telephone system of sound signal
JPS59127442A (en) * 1983-01-11 1984-07-23 Sony Corp Scrambling system for voice signal
FR2541060B1 (en) * 1983-02-16 1989-02-03 Electroniques Et Const METHOD OF INTERFERING INFORMATION TO BE TRANSMITTED FROM A TRANSMITTING STATION TO A RECEIVING STATION
EP0219559B1 (en) * 1985-10-17 1990-09-05 ANT Nachrichtentechnik GmbH Mobile radio system for the transmission of digital as well as analogous signals
FR2625391A1 (en) * 1987-12-23 1989-06-30 Radiotechnique Ind & Comm METHOD AND SYSTEM FOR INTERFERING / UNLOCKING SOUND
JPH0314853U (en) * 1989-06-28 1991-02-14

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407196A (en) * 1971-11-16 1975-09-24 British Broadcasting Corp Apparatus for changing signal pitch
US3819852A (en) * 1972-08-29 1974-06-25 P Wolf Method of reducing the interference signals during the transmission of af signals in time-compressed form
DE2834280A1 (en) * 1978-08-04 1980-02-21 Siemens Ag Scrambled speech transmission system - divides signals into time elements which are rearranged and read out at higher speed and gaps filled with additional signals

Also Published As

Publication number Publication date
NO812082L (en) 1981-12-21
DE3164136D1 (en) 1984-07-19
ES503158A0 (en) 1983-02-01
FI811862L (en) 1981-12-21
JPS5729100A (en) 1982-02-16
EP0042587A1 (en) 1981-12-30
ATE7993T1 (en) 1984-06-15
EP0042587B1 (en) 1984-06-13
AR228273A1 (en) 1983-02-15
ES8303853A1 (en) 1983-02-01
BR8103891A (en) 1982-03-09

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment