ATE131972T1 - Frequenzdemodulationsschaltung - Google Patents

Frequenzdemodulationsschaltung

Info

Publication number
ATE131972T1
ATE131972T1 AT89201075T AT89201075T ATE131972T1 AT E131972 T1 ATE131972 T1 AT E131972T1 AT 89201075 T AT89201075 T AT 89201075T AT 89201075 T AT89201075 T AT 89201075T AT E131972 T1 ATE131972 T1 AT E131972T1
Authority
AT
Austria
Prior art keywords
circuit
frequency
demodulation circuit
frequency demodulation
demodulator
Prior art date
Application number
AT89201075T
Other languages
English (en)
Inventor
Armand Michael Stuivenwold
Holstlaan
Lammeren Johannes Petrus M Van
Elk Henricus Theodorus Pet Van
Bruno Pierre Jean-Marie Motte
Original Assignee
Philips Electronics Nv
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 Electronics Nv filed Critical Philips Electronics Nv
Application granted granted Critical
Publication of ATE131972T1 publication Critical patent/ATE131972T1/de

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
    • 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
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0036—Circuit elements of oscillators including an emitter or source coupled transistor pair or a long tail pair
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
    • H03B2200/003—Circuit elements of oscillators
    • H03B2200/0038—Circuit elements of oscillators including a current mirror
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • 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
    • H03D13/008—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 transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Processing Of Color Television Signals (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Stereo-Broadcasting Methods (AREA)
AT89201075T 1988-05-02 1989-04-26 Frequenzdemodulationsschaltung ATE131972T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8801143A NL8801143A (nl) 1988-05-02 1988-05-02 Frequentiedemodulatieschakeling.

Publications (1)

Publication Number Publication Date
ATE131972T1 true ATE131972T1 (de) 1996-01-15

Family

ID=19852238

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89201075T ATE131972T1 (de) 1988-05-02 1989-04-26 Frequenzdemodulationsschaltung

Country Status (6)

Country Link
US (1) US4963831A (de)
EP (1) EP0340846B1 (de)
JP (1) JP2956771B2 (de)
AT (1) ATE131972T1 (de)
DE (1) DE68925148T2 (de)
NL (1) NL8801143A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408196A (en) * 1993-03-29 1995-04-18 U.S. Philips Corporation Tunable device
JP2825076B2 (ja) * 1995-12-08 1998-11-18 日本電気株式会社 ジャイレータ回路を用いた復調回路
US5949281A (en) * 1996-12-19 1999-09-07 Texas Instruments Incorporated Self aligning PLL demodulator
FR2778052B1 (fr) * 1998-04-24 2000-07-21 Sgs Thomson Microelectronics Demodulateur, en particulier de signal de chrominance secam, a double ajustage en frequence
FR2778053B1 (fr) * 1998-04-24 2000-07-21 Sgs Thomson Microelectronics Demodulateur de signal de chrominance secam a deux voies rouge>bleu et a oscillateur unique
CN1111953C (zh) * 1998-04-25 2003-06-18 普诚科技股份有限公司 振荡器内建于集成电路内的频率调整方法与装置
DE102010035918B4 (de) * 2010-08-31 2014-01-09 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Regelung eines Signals mit einer Mehrzahl von unabhängigen Komponenten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH543193A (de) * 1972-03-30 1973-10-15 Bbc Brown Boveri & Cie Frequenzdetektor
DE2233724C3 (de) * 1972-07-08 1975-11-27 Loewe Opta Gmbh, 1000 Berlin Schaltungsanordnung zum Einstellen der Frequenz in spannungsabhängigen Oszillatoren
DE2413917C2 (de) * 1974-03-22 1984-08-02 Robert Bosch Gmbh, 7000 Stuttgart Demodulatorschaltung für frequenzmodulierte Hilfsträger bei Farbfernsehsignalen
FR2472302A1 (fr) * 1979-12-21 1981-06-26 Thomson Csf Circuit a asservissement de phase, et dispositif comportant un tel circuit notamment pour la television

Also Published As

Publication number Publication date
JP2956771B2 (ja) 1999-10-04
US4963831A (en) 1990-10-16
EP0340846B1 (de) 1995-12-20
JPH0217703A (ja) 1990-01-22
EP0340846A1 (de) 1989-11-08
NL8801143A (nl) 1989-12-01
DE68925148D1 (de) 1996-02-01
DE68925148T2 (de) 1996-07-11

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties