NL220542A - - Google Patents

Info

Publication number
NL220542A
NL220542A NL220542DA NL220542A NL 220542 A NL220542 A NL 220542A NL 220542D A NL220542D A NL 220542DA NL 220542 A NL220542 A NL 220542A
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 NL220542A publication Critical patent/NL220542A/xx
Priority claimed from US613914A external-priority patent/US2922032A/en

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
    • H04W88/02—Terminal devices
    • H04W88/022—Selective call receivers
    • H04W88/025—Selective call decoders
    • H04W88/027—Selective call decoders using frequency address codes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
    • G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D11/00—Super-regenerative demodulator circuits
    • H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations
    • H03D11/04—Super-regenerative demodulator circuits for amplitude-modulated oscillations by means of semiconductor devices having more than two electrodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1638—Special circuits to enhance selectivity of receivers not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Circuits Of Receivers In General (AREA)
NL220542D 1956-10-04 NL220542A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US61391356A 1956-10-04 1956-10-04
US613914A US2922032A (en) 1956-10-04 1956-10-04 Superregenerative detector
US53328A US3090013A (en) 1956-10-04 1960-07-18 L-c transistor oscillator having transformer feedback

Publications (1)

Publication Number Publication Date
NL220542A true NL220542A (fr)

Family

ID=32475286

Family Applications (1)

Application Number Title Priority Date Filing Date
NL220542D NL220542A (fr) 1956-10-04

Country Status (6)

Country Link
US (1) US3090013A (fr)
CH (1) CH358010A (fr)
DE (1) DE1159047B (fr)
FR (1) FR1189954A (fr)
GB (1) GB824811A (fr)
NL (1) NL220542A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248722A (en) * 1961-02-21 1966-04-26 Hood Gust & Irish Frequency keyed transistor oscillator signal receiver
US3218555A (en) * 1962-12-28 1965-11-16 Gen Electric Selective calling system
US3372338A (en) * 1963-05-28 1968-03-05 Hitachi Ltd Radio communication receiver with standby control and warning circuit
AT249114B (de) * 1963-12-24 1966-09-12 Telefunken Patent Transistor-Eingangsstufe eines Empfängers
GB2214740B (en) * 1988-02-01 1992-02-26 Victor Thomas Edmonds Personal single station public broadcast radio receiver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE436134C (de) * 1920-03-11 1926-10-25 Telefunken Gmbh Einrichtung fuer drahtlose Telegraphie zur auswahlweisen Verbreitung von Nachrichten
DE403658C (de) * 1920-12-05 1924-10-03 Drahtlose Telegraphie M B H Ge Einrichtung zum wahlweisen Anruf mittels auf Impulsserien nacheinander ansprechender esonanzrelais
GB404376A (en) * 1932-07-26 1934-01-18 James Croysdale Improvements in or relating to wireless receiving apparatus and the like
US2879480A (en) * 1954-11-04 1959-03-24 Western Electric Co Frequency modulating transistor circuits

Also Published As

Publication number Publication date
US3090013A (en) 1963-05-14
DE1159047B (de) 1963-12-12
CH358010A (de) 1961-10-31
GB824811A (en) 1959-12-02
FR1189954A (fr) 1959-10-08

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