GB783304A - Improvements in or relating to phase-difference detectors and frequency-demodulators - Google Patents

Improvements in or relating to phase-difference detectors and frequency-demodulators

Info

Publication number
GB783304A
GB783304A GB8454/55A GB845455A GB783304A GB 783304 A GB783304 A GB 783304A GB 8454/55 A GB8454/55 A GB 8454/55A GB 845455 A GB845455 A GB 845455A GB 783304 A GB783304 A GB 783304A
Authority
GB
United Kingdom
Prior art keywords
rectifier
phase
output
frequency
sources
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
GB8454/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB783304A publication Critical patent/GB783304A/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
    • H03D3/14—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 semiconductor devices having more than two electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/007—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations
    • H03D13/009—Circuits for comparing the phase or frequency of two mutually-independent oscillations by analog multiplication of the oscillations or by performing a similar analog operation on the oscillations using diodes
    • 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)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplitude Modulation (AREA)
GB8454/55A 1954-03-26 1955-03-23 Improvements in or relating to phase-difference detectors and frequency-demodulators Expired GB783304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL783304X 1954-03-26

Publications (1)

Publication Number Publication Date
GB783304A true GB783304A (en) 1957-09-18

Family

ID=19832211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8454/55A Expired GB783304A (en) 1954-03-26 1955-03-23 Improvements in or relating to phase-difference detectors and frequency-demodulators

Country Status (6)

Country Link
US (1) US2924723A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE536785A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE944738C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1121328A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB783304A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL186276B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922109A (en) * 1954-11-19 1960-01-19 Gen Electric Electric phase discriminator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL94243C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1956-01-28
US3115607A (en) * 1958-07-02 1963-12-24 Itt Synchronized gate
US3192411A (en) * 1961-07-03 1965-06-29 Byrne John Pulse generator using a dual frequency oscillator to both develop and switch high voltage
US3213376A (en) * 1962-07-09 1965-10-19 Gen Precision Inc Digital velocity meter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL75792C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1948-05-19
US2597575A (en) * 1949-03-01 1952-05-20 Gen Electric Frequency modulation reflex limiting circuit
US2713117A (en) * 1949-06-18 1955-07-12 Sylvania Electric Prod Heterodyne converter
US2636133A (en) * 1950-12-01 1953-04-21 Bell Telephone Labor Inc Diode gate
US2771552A (en) * 1951-05-09 1956-11-20 Donald W Lynch Discriminating detector
US2773181A (en) * 1951-10-25 1956-12-04 Westinghouse Electric Corp Frequency discriminator system
US2765115A (en) * 1951-10-30 1956-10-02 Raytheon Mfg Co Arithmetic adders
DE1073543B (de) * 1951-11-06 1960-01-21 Western Electric Company Incorporated, New York N Y (V St A) Impuls-Verstarker mit Transistor
US2657318A (en) * 1952-03-22 1953-10-27 Bell Telephone Labor Inc Electronic switch
GB749827A (en) * 1952-12-23 1956-06-06 Standard Telephones Cables Ltd Improvements in or relating to electric frequency dividers
NL95030C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1953-02-24
US2804578A (en) * 1953-06-26 1957-08-27 Research Corp Phase-comparison distance relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922109A (en) * 1954-11-19 1960-01-19 Gen Electric Electric phase discriminator

Also Published As

Publication number Publication date
US2924723A (en) 1960-02-09
DE944738C (de) 1956-06-21
FR1121328A (fr) 1956-08-08
BE536785A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL186276B (nl)
NL93522C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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