GB2149987B - Frequency modulation detectors - Google Patents

Frequency modulation detectors

Info

Publication number
GB2149987B
GB2149987B GB08421012A GB8421012A GB2149987B GB 2149987 B GB2149987 B GB 2149987B GB 08421012 A GB08421012 A GB 08421012A GB 8421012 A GB8421012 A GB 8421012A GB 2149987 B GB2149987 B GB 2149987B
Authority
GB
United Kingdom
Prior art keywords
frequency modulation
modulation detectors
detectors
frequency
modulation
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
GB08421012A
Other versions
GB8421012D0 (en
GB2149987A (en
Inventor
Rodney James Lawton
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.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
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 Plessey Co Ltd filed Critical Plessey Co Ltd
Publication of GB8421012D0 publication Critical patent/GB8421012D0/en
Priority to EP84307428A priority Critical patent/EP0143556B2/en
Priority to AT84307428T priority patent/ATE55664T1/en
Priority to DE8484307428T priority patent/DE3482986D1/en
Priority to JP59242218A priority patent/JPH0740645B2/en
Priority to US06/671,948 priority patent/US4608539A/en
Priority to CA000468040A priority patent/CA1267453A/en
Publication of GB2149987A publication Critical patent/GB2149987A/en
Application granted granted Critical
Publication of GB2149987B publication Critical patent/GB2149987B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
GB08421012A 1983-11-18 1984-08-17 Frequency modulation detectors Expired GB2149987B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP84307428A EP0143556B2 (en) 1983-11-18 1984-10-29 Improvements relating to frequency modulation detectors
AT84307428T ATE55664T1 (en) 1983-11-18 1984-10-29 FREQUENCY MODULATION DETECTORS.
DE8484307428T DE3482986D1 (en) 1983-11-18 1984-10-29 FREQUENCY MODULATION DETECTORS.
JP59242218A JPH0740645B2 (en) 1983-11-18 1984-11-16 Frequency modulation detector
US06/671,948 US4608539A (en) 1983-11-18 1984-11-16 FM detector with injection locked divider input circuit
CA000468040A CA1267453A (en) 1983-11-18 1984-11-16 Frequency modulation detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838330761A GB8330761D0 (en) 1983-11-18 1983-11-18 Frequency modulation detectors

Publications (3)

Publication Number Publication Date
GB8421012D0 GB8421012D0 (en) 1984-09-19
GB2149987A GB2149987A (en) 1985-06-19
GB2149987B true GB2149987B (en) 1987-09-16

Family

ID=10551945

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838330761A Pending GB8330761D0 (en) 1983-11-18 1983-11-18 Frequency modulation detectors
GB08421012A Expired GB2149987B (en) 1983-11-18 1984-08-17 Frequency modulation detectors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838330761A Pending GB8330761D0 (en) 1983-11-18 1983-11-18 Frequency modulation detectors

Country Status (1)

Country Link
GB (2) GB8330761D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8521061D0 (en) * 1985-08-22 1985-09-25 Plessey Co Plc Fm demodulators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE462652A (en) * 1945-01-27
GB627238A (en) * 1945-12-13 1949-08-03 Bendix Aviat Corp Intermediate frequency amplifier
GB682734A (en) * 1949-09-24 1952-11-12 Philips Electrical Ind Ltd Improvements in or relating to radio receiving circuit-arrangements
BE514215A (en) * 1951-09-17
GB771979A (en) * 1954-05-29 1957-04-10 Philips Electrical Ind Ltd Improvements in or relating to receiving circuit arrangements for frequency-modulated oscillations

Also Published As

Publication number Publication date
GB8330761D0 (en) 1983-12-29
GB8421012D0 (en) 1984-09-19
GB2149987A (en) 1985-06-19

Similar Documents

Publication Publication Date Title
DE3476621D1 (en) Frequency detector
DE3467961D1 (en) Zero if frequency modulator
AU570949B2 (en) Frequency detection
DE3474888D1 (en) Frequency converter
DE3472048D1 (en) Clock frequency detector
GB2192103B (en) Frequency detector
GB8419176D0 (en) Frequency modulation detectors
DE3467816D1 (en) Peak detector
GB2113930B (en) Frequency discriminator
DE3461044D1 (en) Analogous and aperiodical frequency divider by two
JPS57118164A (en) Maximum frequency detector
GB2082409B (en) Frequency modulation detector
EP0143556A3 (en) Improvements relating to frequency modulation detectors
GB2138640B (en) Frequency discriminator
GB2143693B (en) Frequency changer
GB8412856D0 (en) Frequency detection
GB8401378D0 (en) Detector
GB8422277D0 (en) Fixed frequency detector
GB2149987B (en) Frequency modulation detectors
GB8322648D0 (en) Microwave signal generator
GB8324105D0 (en) Frequency modulation
GB8521656D0 (en) Fixed frequency detector
GB2134318B (en) Magnetrons
PL241245A1 (en) Threshold frequency detector
BG35735A1 (en) Frequency modulator

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930817