GB824811A - Transistor receiver - Google Patents

Transistor receiver

Info

Publication number
GB824811A
GB824811A GB27896/57A GB2789657A GB824811A GB 824811 A GB824811 A GB 824811A GB 27896/57 A GB27896/57 A GB 27896/57A GB 2789657 A GB2789657 A GB 2789657A GB 824811 A GB824811 A GB 824811A
Authority
GB
United Kingdom
Prior art keywords
oscillator
capacitor
transformer
calling
audio
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
GB27896/57A
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.)
General Dynamics Corp
Original Assignee
General Dynamics Corp
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
Priority claimed from US613914A external-priority patent/US2922032A/en
Application filed by General Dynamics Corp filed Critical General Dynamics Corp
Publication of GB824811A publication Critical patent/GB824811A/en
Expired legal-status Critical Current

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 SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems, e.g. audible personal calling systems
    • G08B3/10—Audible signalling systems, e.g. 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)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Circuits Of Receivers In General (AREA)
GB27896/57A 1956-10-04 1957-09-04 Transistor receiver Expired GB824811A (en)

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
GB824811A true GB824811A (en) 1959-12-02

Family

ID=32475286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27896/57A Expired GB824811A (en) 1956-10-04 1957-09-04 Transistor receiver

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332020A (en) * 1963-12-24 1967-07-18 Telefunken Patent Transistor input stage for a receiver
GB2214740A (en) * 1988-02-01 1989-09-06 Victor Thomas Edmonds Personal single station public broadcast radio receiver

Families Citing this family (3)

* 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

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332020A (en) * 1963-12-24 1967-07-18 Telefunken Patent Transistor input stage for a receiver
GB2214740A (en) * 1988-02-01 1989-09-06 Victor Thomas Edmonds Personal single station public broadcast radio receiver
GB2214740B (en) * 1988-02-01 1992-02-26 Victor Thomas Edmonds Personal single station public broadcast radio receiver

Also Published As

Publication number Publication date
CH358010A (de) 1961-10-31
DE1159047B (de) 1963-12-12
US3090013A (en) 1963-05-14
FR1189954A (fr) 1959-10-08
NL220542A (enExample)

Similar Documents

Publication Publication Date Title
US2899547A (en) Paging communication system
GB873189A (en) Improvements in or relating to oscillation generators for multifrequency signalling systems
US2361585A (en) Radio warning system
GB935372A (en) Improved transponder
US2480115A (en) Radio control system
GB793983A (enExample)
GB919172A (enExample)
US3573630A (en) Time variable alert tone circuit for personal radio paging systems
GB1308702A (en) Intrusion detection apparatus having supervisory control means
GB981158A (en) Radio receiver squelch system
US3602821A (en) Noise immune pure carrier detector circuit
US4158148A (en) Latching detector circuit
US3090013A (en) L-c transistor oscillator having transformer feedback
US3614321A (en) Remote functional control circuit
US3131354A (en) Tone control receiver circuit
US3534268A (en) Suppression of noise transmission in a network
US3372338A (en) Radio communication receiver with standby control and warning circuit
US3283315A (en) Signal receiving and indicating system having receiver controlled indicator operatedintermittently during signal reception to prevent regeneration
US3806938A (en) Shock falsing inhibitor circuit for a plural tone receiver
US3835389A (en) Carrier current system
GB1006362A (en) An improved ultra-sonic detector
US3248722A (en) Frequency keyed transistor oscillator signal receiver
US3218555A (en) Selective calling system
US3025394A (en) Super-regenerative transistor detector
GB833159A (en) Control apparatus for a remote dictation system