GB401564A - Method for the arbitrary distortion and correction of wireless or wire transmitted alternating currents, such as speech and signal alternating currents, by means of superimposed disturbance alternating currents - Google Patents

Method for the arbitrary distortion and correction of wireless or wire transmitted alternating currents, such as speech and signal alternating currents, by means of superimposed disturbance alternating currents

Info

Publication number
GB401564A
GB401564A GB7543/33A GB754333A GB401564A GB 401564 A GB401564 A GB 401564A GB 7543/33 A GB7543/33 A GB 7543/33A GB 754333 A GB754333 A GB 754333A GB 401564 A GB401564 A GB 401564A
Authority
GB
United Kingdom
Prior art keywords
record
alternating currents
distorting
signals
currents
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.)
Expired
Application number
GB7543/33A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB401564A publication Critical patent/GB401564A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB7543/33A 1933-01-20 1933-03-13 Method for the arbitrary distortion and correction of wireless or wire transmitted alternating currents, such as speech and signal alternating currents, by means of superimposed disturbance alternating currents Expired GB401564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE401564X 1933-01-20

Publications (1)

Publication Number Publication Date
GB401564A true GB401564A (en) 1933-11-16

Family

ID=6406481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7543/33A Expired GB401564A (en) 1933-01-20 1933-03-13 Method for the arbitrary distortion and correction of wireless or wire transmitted alternating currents, such as speech and signal alternating currents, by means of superimposed disturbance alternating currents

Country Status (3)

Country Link
US (1) US2083653A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB401564A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL37013C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767395C (de) * 1936-05-03 1952-07-31 Lorenz A G C Verfahren zur Geheimhaltung von Nachrichten
DE1087637B (de) * 1959-04-17 1960-08-25 Siemens Ag Schaltungsanordnung zum Verringern der Erkennungsmoeglichkeit von Klartextimpulsen bei einer Fernschreibanlage fuer verschluesselten Betrieb

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476337A (en) * 1943-01-22 1949-07-19 Sperry Corp Secret radio communication
US2466390A (en) * 1944-03-30 1949-04-05 Bell Telephone Labor Inc Secret telegraph system
US3887772A (en) * 1944-06-30 1975-06-03 Bell Telephone Labor Inc Signal privacy with safety feature
US2521690A (en) * 1945-08-14 1950-09-12 Standard Telephones Cables Ltd Secrecy preserving signaling system
US2556677A (en) * 1946-05-10 1951-06-12 Bell Telephone Labor Inc Secret communication system
US2660666A (en) * 1950-01-05 1953-11-24 Westinghouse Electric Corp Secrecy transmission system
US3071752A (en) * 1958-01-02 1963-01-01 Strasberg Murray Interference reduction apparatus
US3067280A (en) * 1959-09-15 1962-12-04 Teleprompter Corp Secret signaling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767395C (de) * 1936-05-03 1952-07-31 Lorenz A G C Verfahren zur Geheimhaltung von Nachrichten
DE1087637B (de) * 1959-04-17 1960-08-25 Siemens Ag Schaltungsanordnung zum Verringern der Erkennungsmoeglichkeit von Klartextimpulsen bei einer Fernschreibanlage fuer verschluesselten Betrieb

Also Published As

Publication number Publication date
NL37013C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2083653A (en) 1937-06-15

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