NL6514377A - - Google Patents

Info

Publication number
NL6514377A
NL6514377A NL6514377A NL6514377A NL6514377A NL 6514377 A NL6514377 A NL 6514377A NL 6514377 A NL6514377 A NL 6514377A NL 6514377 A NL6514377 A NL 6514377A NL 6514377 A NL6514377 A NL 6514377A
Authority
NL
Netherlands
Prior art keywords
output
gate
pulse
volt
value
Prior art date
Application number
NL6514377A
Other languages
English (en)
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 filed Critical
Publication of NL6514377A publication Critical patent/NL6514377A/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/30—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using more than one pulse per radar period
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09C—CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY
    • G09C1/00—Apparatus or methods whereby a given sequence of signs, e.g. an intelligible text, is transformed into an unintelligible sequence of signs by transposing the signs or groups of signs or by replacing them by others according to a predetermined system
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/08—Randomization, e.g. dummy operations or using noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12—Details relating to cryptographic hardware or logic circuitry
NL6514377A 1964-11-06 1965-11-05 NL6514377A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1435864A CH439820A (de) 1964-11-06 1964-11-06 Verfahren und Einrichtung zur Ver- und Entschlüsselung von Nachrichtensignalen

Publications (1)

Publication Number Publication Date
NL6514377A true NL6514377A (xx) 1966-05-09

Family

ID=4400132

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6514377A NL6514377A (xx) 1964-11-06 1965-11-05

Country Status (7)

Country Link
US (1) US3427399A (xx)
BE (1) BE671906A (xx)
CH (1) CH439820A (xx)
DE (1) DE1289547B (xx)
GB (1) GB1122639A (xx)
NL (1) NL6514377A (xx)
SE (1) SE319516B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283602A (en) * 1966-06-03 1981-08-11 International Telephone And Telegraph Corporation Cryptographically secure communication system
US4171513A (en) * 1966-09-06 1979-10-16 Sanders Associates, Inc. Secure communications system
NL6906145A (xx) * 1968-05-15 1969-11-18
CH516854A (de) * 1969-11-29 1971-12-15 Ciba Geigy Ag Verfahren und Vorrichtung zur chiffrierten Übermittlung von Informationen
CH540613A (de) * 1970-12-08 1973-08-15 Gretag Ag Verfahren und Vorrichtung zur chiffrierten Nachrichtenübermittlung
US3746799A (en) * 1971-09-27 1973-07-17 Us Navy Method and apparatus for encoding and decoding analog signals
US3813493A (en) * 1972-12-07 1974-05-28 P Hughes Secure data transmission apparatus
US4086435A (en) * 1976-09-17 1978-04-25 Biosystems Research Group Ii Method of and means for scrambling and descrambling speech at audio frequencies
EP1317809A4 (en) * 2000-08-09 2005-05-18 Avway Com Inc METHOD AND SYSTEM FOR STEGANOGRAPHIC INTEGRATION OF INFORMATION BITS IN SOURCE SIGNALS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT130851B (de) * 1930-07-18 1932-12-27 Siemens Ag Geheimtelegraphiersystem.
US2836657A (en) * 1944-11-20 1958-05-27 Gen Electric Secrecy communication system
CH382216A (de) * 1960-11-07 1964-09-30 Europ Handelsges Anst Gerät zur Ver- und Entschlüsselung eines in Fernschreibersymbolen niedergelegten Textes
US3278903A (en) * 1962-07-10 1966-10-11 George A Long Random frequency controlled monitor circuit for security device

Also Published As

Publication number Publication date
SE319516B (xx) 1970-01-19
DE1289547B (de) 1969-02-20
CH439820A (de) 1967-07-15
BE671906A (xx) 1966-05-05
GB1122639A (en) 1968-08-07
US3427399A (en) 1969-02-11

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