FR843407A - Sélecteur d'appel - Google Patents

Sélecteur d'appel

Info

Publication number
FR843407A
FR843407A FR843407DA FR843407A FR 843407 A FR843407 A FR 843407A FR 843407D A FR843407D A FR 843407DA FR 843407 A FR843407 A FR 843407A
Authority
FR
France
Prior art keywords
call selector
selector
call
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
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR843407A publication Critical patent/FR843407A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuits Of Receivers In General (AREA)
FR843407D 1938-03-11 1938-03-11 Sélecteur d'appel Expired FR843407A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2275930X 1938-03-11

Publications (1)

Publication Number Publication Date
FR843407A true FR843407A (fr) 1939-07-03

Family

ID=9684840

Family Applications (1)

Application Number Title Priority Date Filing Date
FR843407D Expired FR843407A (fr) 1938-03-11 1938-03-11 Sélecteur d'appel

Country Status (2)

Country Link
US (1) US2275930A (fr)
FR (1) FR843407A (fr)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734935A (en) * 1956-02-14 hanley
US2424579A (en) * 1943-03-10 1947-07-29 Int Standard Electric Corp Electric signaling system
US2435579A (en) * 1943-05-10 1948-02-10 Oliver T Francis Voltage magnitude discriminator circuit
US2444741A (en) * 1943-12-31 1948-07-06 Hazeltine Research Inc Wave-signal translating system
US2979015A (en) * 1944-01-06 1961-04-11 Nelson N Estes Anti-torpedo system
US2549865A (en) * 1944-01-08 1951-04-24 Horace M Trent Time-delay relay system
US2640926A (en) * 1944-07-04 1953-06-02 Us Navy Automatic release and reset system
US2469860A (en) * 1944-12-08 1949-05-10 Gen Electric Control device
US2585803A (en) * 1945-04-18 1952-02-12 Us Sec War Pulse width discriminator circuit
US2696558A (en) * 1945-04-28 1954-12-07 Conrad H Hoeppner Pulse width discriminator
US2582251A (en) * 1945-08-03 1952-01-15 Conrad H Hoeppner Pulse width discriminator
US2744196A (en) * 1945-10-09 1956-05-01 Conrad H Hoeppner Pulse width discriminator
US2512699A (en) * 1945-12-06 1950-06-27 Us Sec War Radio pulse receiver interference eliminator
US2579473A (en) * 1945-12-07 1951-12-25 Int Standard Electric Corp Arrangement for selecting electric pulses of given width
US2720612A (en) * 1945-12-13 1955-10-11 John L Leonard Electronic controller
US2609501A (en) * 1946-01-03 1952-09-02 Jr George B Guthrie Pulse width discriminator circuit
US2697780A (en) * 1946-02-18 1954-12-21 Douglas E Howes Pulse receiver
US2481485A (en) * 1946-05-11 1949-09-13 Honeywell Regulator Co Method and apparatus for measuring and controlling
US2499520A (en) * 1947-01-31 1950-03-07 Raytheon Mfg Co Distance measuring device
FR963718A (fr) * 1947-02-27 1950-07-19
US2552013A (en) * 1947-04-22 1951-05-08 Gen Railway Signal Co Pulse duration discriminator
US2658189A (en) * 1948-01-09 1953-11-03 Bell Telephone Labor Inc Signaling system based on orthogonal functions
US2597071A (en) * 1948-08-14 1952-05-20 Bell Telephone Labor Inc Signal monitoring
US2508179A (en) * 1948-09-03 1950-05-16 Westinghouse Electric Corp Motor control system
US2657308A (en) * 1950-07-29 1953-10-27 Standard Telephones Cables Ltd Signal receiver circuit
US2766374A (en) * 1951-07-25 1956-10-09 Internat Telementer Corp System and apparatus for determining popularity ratings of different transmitted programs
US2636162A (en) * 1952-03-04 1953-04-21 Bert H Sinclair Decoding circuit
US2776370A (en) * 1952-06-27 1957-01-01 Harold N Beveridge Pulse width discriminator
US2950343A (en) * 1955-01-26 1960-08-23 Rca Corp Noise immune amplitude discriminatory system
US3022498A (en) * 1957-05-31 1962-02-20 Alcott Frederick Stanley Warning device
US3095541A (en) * 1959-09-22 1963-06-25 North American Aviation Inc Detector having desired waveform detected within specified amplitude range and as function of time
US3594585A (en) * 1968-05-31 1971-07-20 Chesapeake Systems Corp Pulse recognition circuit
US20080316784A1 (en) * 2007-06-22 2008-12-25 Cebry George L Isolated radiation hardened electronics on/off control circuit

Also Published As

Publication number Publication date
US2275930A (en) 1942-03-10

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