FR1550217A - - Google Patents

Info

Publication number
FR1550217A
FR1550217A FR121671A FR1550217DA FR1550217A FR 1550217 A FR1550217 A FR 1550217A FR 121671 A FR121671 A FR 121671A FR 1550217D A FR1550217D A FR 1550217DA FR 1550217 A FR1550217 A FR 1550217A
Authority
FR
France
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
FR121671A
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 filed Critical
Application granted granted Critical
Publication of FR1550217A publication Critical patent/FR1550217A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • 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
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
    • 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
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
    • 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
    • H03B2202/00—Aspects of oscillators relating to reduction of undesired oscillations
    • H03B2202/02—Reduction of undesired oscillations originated from natural noise of the circuit elements of the oscillator
    • H03B2202/025—Reduction of undesired oscillations originated from natural noise of the circuit elements of the oscillator the noise being coloured noise, i.e. frequency dependent noise
    • H03B2202/027—Reduction of undesired oscillations originated from natural noise of the circuit elements of the oscillator the noise being coloured noise, i.e. frequency dependent noise the noise being essentially proportional to the inverse of the frequency, i.e. the so-called 1/f noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
FR121671A 1967-09-20 1967-09-20 Expired FR1550217A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR121671 1967-09-20

Publications (1)

Publication Number Publication Date
FR1550217A true FR1550217A (fr) 1968-12-20

Family

ID=8638665

Family Applications (1)

Application Number Title Priority Date Filing Date
FR121671A Expired FR1550217A (fr) 1967-09-20 1967-09-20

Country Status (6)

Country Link
US (1) US3584305A (fr)
BE (1) BE720774A (fr)
DE (1) DE1791136A1 (fr)
FR (1) FR1550217A (fr)
GB (1) GB1180351A (fr)
NL (1) NL6813399A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1526338A (en) * 1976-05-22 1978-09-27 Eddystone Radio Superheterodyne receivers
GB2143691A (en) * 1983-07-22 1985-02-13 Plessey Co Plc A double superhet tuner
WO1992016095A1 (fr) * 1991-03-04 1992-09-17 Motorola, Inc. Appareil de blindage pour un boitier de circuit electronique non conducteur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE477826A (fr) * 1946-12-05
US3456196A (en) * 1966-12-30 1969-07-15 Bell Telephone Labor Inc Digital automatic frequency control system

Also Published As

Publication number Publication date
DE1791136A1 (de) 1971-10-28
GB1180351A (en) 1970-02-04
NL6813399A (fr) 1969-03-24
BE720774A (fr) 1969-03-13
US3584305A (en) 1971-06-08

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse