GB587212A - Frequency discriminator circuits - Google Patents

Frequency discriminator circuits

Info

Publication number
GB587212A
GB587212A GB25211/44A GB2521144A GB587212A GB 587212 A GB587212 A GB 587212A GB 25211/44 A GB25211/44 A GB 25211/44A GB 2521144 A GB2521144 A GB 2521144A GB 587212 A GB587212 A GB 587212A
Authority
GB
United Kingdom
Prior art keywords
load resistors
primary
discriminator
condensers
frequency
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
GB25211/44A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB587212A publication Critical patent/GB587212A/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
    • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
    • H03D3/06—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators
    • H03D3/08—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by combining signals additively or in product demodulators by means of diodes, e.g. Foster-Seeley discriminator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB25211/44A 1943-12-20 1944-12-15 Frequency discriminator circuits Expired GB587212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515016A US2433377A (en) 1943-12-20 1943-12-20 Frequency discriminator circuits

Publications (1)

Publication Number Publication Date
GB587212A true GB587212A (en) 1947-04-17

Family

ID=24049647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25211/44A Expired GB587212A (en) 1943-12-20 1944-12-15 Frequency discriminator circuits

Country Status (4)

Country Link
US (1) US2433377A (enrdf_load_stackoverflow)
BE (1) BE465457A (enrdf_load_stackoverflow)
FR (1) FR939061A (enrdf_load_stackoverflow)
GB (1) GB587212A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525359A (en) * 1946-04-04 1950-10-10 Rca Corp Frequency modulation receiver tuning aid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296056A (en) * 1939-08-16 1942-09-15 Rca Corp Frequency modulation receiver
US2282105A (en) * 1940-10-16 1942-05-05 Rca Corp Detection of frequency modulated waves
US2286410A (en) * 1941-04-09 1942-06-16 Rca Corp Frequency modulation receiver tuning indicator

Also Published As

Publication number Publication date
BE465457A (enrdf_load_stackoverflow)
US2433377A (en) 1947-12-30
FR939061A (fr) 1948-11-03

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