BE482052A - - Google Patents

Info

Publication number
BE482052A
BE482052A BE482052A BE482052A BE482052A BE 482052 A BE482052 A BE 482052A BE 482052 A BE482052 A BE 482052A BE 482052 A BE482052 A BE 482052A BE 482052 A BE482052 A BE 482052A
Authority
BE
Belgium
Application number
BE482052A
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 BE482052A publication Critical patent/BE482052A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18—Service support devices; Network management devices
    • H04W88/185—Selective call encoders for paging networks, e.g. paging centre devices
    • H04W88/188—Selective call encoders for paging networks, e.g. paging centre devices using frequency address codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
BE482052A 1947-03-20 1948-04-23 BE482052A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US735939A US2457149A (en) 1947-03-20 1947-03-20 Selective signaling circuit

Publications (1)

Publication Number Publication Date
BE482052A true BE482052A (fr) 1948-10-23

Family

ID=63556069

Family Applications (1)

Application Number Title Priority Date Filing Date
BE482052A BE482052A (fr) 1947-03-20 1948-04-23

Country Status (4)

Country Link
US (1) US2457149A (fr)
BE (1) BE482052A (fr)
FR (1) FR963490A (fr)
GB (1) GB663859A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591937A (en) * 1947-05-01 1952-04-08 Automatic Elect Lab Selective calling system
US2547024A (en) * 1947-05-23 1951-04-03 Motorola Inc Selective calling system
US2547023A (en) * 1947-05-23 1951-04-03 Motorola Inc Selective calling system
US2547025A (en) * 1947-05-23 1951-04-03 Motorola Inc Frequency selective calling system
US2602853A (en) * 1947-08-07 1952-07-08 Bell Telephone Labor Inc Selective signaling system
US2658188A (en) * 1948-06-29 1953-11-03 Bell Telephone Labor Inc Pulse position dialing system with direct time measuring apparatus
US2630482A (en) * 1948-07-10 1953-03-03 Bell Telephone Labor Inc Tuned vibrating reed selective circuit
GB673173A (fr) * 1949-04-02
US2666196A (en) * 1949-06-07 1954-01-12 Bell Telephone Labor Inc Frequency station calling system using bifurcated piezoelectric elements
US2693526A (en) * 1949-06-15 1954-11-02 Automatic Elect Lab Single channel single frequency mobile radio telephone system
USRE24680E (en) * 1950-09-22 1959-08-11 Automatic telephone exchanges
US2991562A (en) * 1953-04-10 1961-07-11 Donald G C Hare Training aid system for wave detection equipment
NL96282C (fr) * 1954-12-30
DE1025023B (de) * 1955-01-15 1958-02-27 Deutsche Bundespost Selektivrufsystem fuer die Wahl von Fernsprechteilnehmern in Sprechfunknetzen
US2975410A (en) * 1955-06-06 1961-03-14 Itt Data translating system
US2961649A (en) * 1956-03-09 1960-11-22 Kenneth R Eldredge Automatic reading system
US2934745A (en) * 1956-08-06 1960-04-26 Karl L Kocmanek Remote frequency selection system
US2980794A (en) * 1957-06-13 1961-04-18 Fairchild Camera Instr Co Automatic tone decoder
US3023373A (en) * 1958-05-15 1962-02-27 Thompson Ramo Wooldridge Inc Precision variable frequency generator
US3729581A (en) * 1970-09-03 1973-04-24 Display Sys Corp Computer assisted dial access video retrieval for an instructional television system

Also Published As

Publication number Publication date
FR963490A (fr) 1950-07-11
GB663859A (en) 1951-12-27
US2457149A (en) 1948-12-28

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