NL81626C - - Google Patents

Info

Publication number
NL81626C
NL81626C NL81626DA NL81626C NL 81626 C NL81626 C NL 81626C NL 81626D A NL81626D A NL 81626DA NL 81626 C NL81626 C NL 81626C
Authority
NL
Netherlands
Application number
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.)
Publication of NL81626C publication Critical patent/NL81626C/xx

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
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/006—Secret communication by varying or inverting the phase, at periodic or random intervals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NL81626D 1944-04-20 NL81626C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US531859A US2426225A (en) 1944-04-20 1944-04-20 Communication system

Publications (1)

Publication Number Publication Date
NL81626C true NL81626C (enrdf_load_html_response)

Family

ID=24119350

Family Applications (1)

Application Number Title Priority Date Filing Date
NL81626D NL81626C (enrdf_load_html_response) 1944-04-20

Country Status (5)

Country Link
US (1) US2426225A (enrdf_load_html_response)
BE (1) BE479062A (enrdf_load_html_response)
FR (1) FR951383A (enrdf_load_html_response)
GB (1) GB591884A (enrdf_load_html_response)
NL (1) NL81626C (enrdf_load_html_response)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384705A (en) * 1944-08-29 1968-05-21 Rosen Leo Facsimile privacy apparatus
US2509064A (en) * 1945-08-23 1950-05-23 Bell Telephone Labor Inc Reduction of noise in pulse position modulation systems
US2629857A (en) * 1946-08-10 1953-02-24 Int Standard Electric Corp Communication system utilizing constant amplitude pulses of opposite polarities
US2605410A (en) * 1946-08-27 1952-07-29 Rca Corp Pulse-time discriminator
US2548796A (en) * 1947-06-02 1951-04-10 Rca Corp Double polarity pulse generator system
US2629053A (en) * 1948-03-15 1953-02-17 Phillips Petroleum Co Detonation meter calibrator
US2640151A (en) * 1949-07-14 1953-05-26 Westinghouse Electric Corp Blocking oscillator system
BE567481A (enrdf_load_html_response) * 1954-06-08
CA888373A (en) * 1949-12-21 1971-12-14 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Secret signalling system
US2678425A (en) * 1950-02-21 1954-05-11 Raytheon Mfg Co Analogue computer
US2623952A (en) * 1950-04-01 1952-12-30 Magnetic Equipment Inc Modulating system
US2714704A (en) * 1951-03-23 1955-08-02 Rca Corp Quantizing modulation circuit arrangement
US2689344A (en) * 1951-05-15 1954-09-14 Stanley R Rich Pulse modulated speech transmission system
US2863999A (en) * 1953-04-21 1958-12-09 Rca Corp Wave shaper
US2880320A (en) * 1953-04-23 1959-03-31 Syrl K Ferguson Electronic message timing circuit
US2896501A (en) * 1953-05-28 1959-07-28 Faximile Inc Apparatus for outlining contours
US2813151A (en) * 1953-10-06 1957-11-12 Bell Telephone Labor Inc Impulse signal distortion circuit
US2853634A (en) * 1954-01-05 1958-09-23 Westinghouse Electric Corp Saturable reactor keying for radio transmitters
US2855509A (en) * 1954-04-20 1958-10-07 Edward A Moore Variable delay time pulse generator
US2961651A (en) * 1954-04-20 1960-11-22 Frank B Uphoff Synchronized system of interlaced scanning
US2866094A (en) * 1954-09-29 1958-12-23 Hoffman Electronics Corp Symmetrical to asymmetrical signal conversion circuit
US3008244A (en) * 1954-11-30 1961-11-14 Smith Meeker Engineering Compa Sonar simulator
US2864954A (en) * 1957-11-01 1958-12-16 Edward L Byrne Pulse regenerator circuit
US3095508A (en) * 1959-02-06 1963-06-25 Cons Electrodynamics Corp Alternating current power control system
AU2001278163A1 (en) * 2000-08-09 2002-02-18 Avway.Com Inc. Method and system for steganographically embedding information bits in source signals

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB431794A (en) * 1933-01-18 1935-07-16 Emanuele Boselli Improvements in or relating to electric communication systems

Also Published As

Publication number Publication date
US2426225A (en) 1947-08-26
FR951383A (fr) 1949-10-24
BE479062A (enrdf_load_html_response)
GB591884A (en) 1947-09-01

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