GB2039179B - Demodulator circuit - Google Patents

Demodulator circuit

Info

Publication number
GB2039179B
GB2039179B GB7942100A GB7942100A GB2039179B GB 2039179 B GB2039179 B GB 2039179B GB 7942100 A GB7942100 A GB 7942100A GB 7942100 A GB7942100 A GB 7942100A GB 2039179 B GB2039179 B GB 2039179B
Authority
GB
United Kingdom
Prior art keywords
demodulator circuit
demodulator
circuit
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
GB7942100A
Other versions
GB2039179A (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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB2039179A publication Critical patent/GB2039179A/en
Application granted granted Critical
Publication of GB2039179B publication Critical patent/GB2039179B/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
    • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
    • H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
    • H03D3/245—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop using at least twophase detectors in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • H03D1/2254—Homodyne or synchrodyne circuits using two quadrature channels and a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB7942100A 1978-12-14 1979-12-06 Demodulator circuit Expired GB2039179B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2853890A DE2853890C2 (en) 1978-12-14 1978-12-14 Method for demodulating phase, amplitude or frequency modulated signals with the aid of a phase-locked loop

Publications (2)

Publication Number Publication Date
GB2039179A GB2039179A (en) 1980-07-30
GB2039179B true GB2039179B (en) 1983-04-13

Family

ID=6057089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7942100A Expired GB2039179B (en) 1978-12-14 1979-12-06 Demodulator circuit

Country Status (6)

Country Link
JP (1) JPS5583307A (en)
CA (1) CA1158323A (en)
DE (1) DE2853890C2 (en)
FR (1) FR2444365B1 (en)
GB (1) GB2039179B (en)
IT (1) IT1127684B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146280A1 (en) * 1981-11-21 1983-06-23 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Demodulators, the control information of which is obtained from a power detector
JP2770342B2 (en) * 1988-09-26 1998-07-02 日本電気株式会社 Automatic phase control circuit
DE4223257C2 (en) * 1992-07-15 1994-07-14 Telefunken Microelectron Circuit arrangement for demodulating the SECAM color beard signal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122110B (en) * 1958-03-20 1962-01-18 Nippon Electric Co Receiving system for frequency or phase modulated vibrations
US3060383A (en) * 1958-12-04 1962-10-23 Itt Gain regulation circuit
GB925157A (en) * 1960-06-29 1963-05-01 Standard Telephones Cables Ltd Circuit arrangement for effecting automatic frequency readjustment in television receivers
US3209271A (en) * 1961-08-17 1965-09-28 Radiation Inc Phase-locked loops
AU472567B2 (en) 1972-01-20 1976-05-27 National Aeronautics And Space Administration Improved narrowband fm system for voice communications
JPS52150922A (en) * 1976-06-10 1977-12-15 Sony Corp Am receiver
JPS6024640B2 (en) * 1976-11-25 1985-06-13 日本ビクター株式会社 Demodulator for angle modulated wave signals reproduced from multi-channel disc records

Also Published As

Publication number Publication date
CA1158323A (en) 1983-12-06
JPS6351406B2 (en) 1988-10-13
GB2039179A (en) 1980-07-30
FR2444365A1 (en) 1980-07-11
IT1127684B (en) 1986-05-21
JPS5583307A (en) 1980-06-23
FR2444365B1 (en) 1985-09-06
IT7928007A0 (en) 1979-12-07
DE2853890A1 (en) 1980-06-19
DE2853890C2 (en) 1986-03-13

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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