BE432671A - - Google Patents

Info

Publication number
BE432671A
BE432671A BE432671DA BE432671A BE 432671 A BE432671 A BE 432671A BE 432671D A BE432671D A BE 432671DA BE 432671 A BE432671 A BE 432671A
Authority
BE
Belgium
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 BE432671A publication Critical patent/BE432671A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)
BE432671D 1938-02-12 BE432671A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0094222 1938-02-12

Publications (1)

Publication Number Publication Date
BE432671A true BE432671A (enrdf_load_html_response)

Family

ID=7287832

Family Applications (1)

Application Number Title Priority Date Filing Date
BE432671D BE432671A (enrdf_load_html_response) 1938-02-12

Country Status (4)

Country Link
US (1) US2290909A (enrdf_load_html_response)
BE (1) BE432671A (enrdf_load_html_response)
CH (1) CH208452A (enrdf_load_html_response)
FR (1) FR850207A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768274A (en) * 1953-10-27 1956-10-23 Gen Electric Variable resistor control system
US3389386A (en) * 1964-09-30 1968-06-18 Technical Marketing Associates Rellable monitoring system

Also Published As

Publication number Publication date
CH208452A (de) 1940-01-31
US2290909A (en) 1942-07-28
FR850207A (fr) 1939-12-11

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