FI47703C - Förfarande för mottagning av högfrekventa elektriska vågor. - Google Patents

Förfarande för mottagning av högfrekventa elektriska vågor.

Info

Publication number
FI47703C
FI47703C FI663206A FI320666A FI47703C FI 47703 C FI47703 C FI 47703C FI 663206 A FI663206 A FI 663206A FI 320666 A FI320666 A FI 320666A FI 47703 C FI47703 C FI 47703C
Authority
FI
Finland
Prior art keywords
high frequency
frequency electric
receiving high
electric waves
waves
Prior art date
Application number
FI663206A
Other languages
English (en)
Finnish (fi)
Other versions
FI47703B (sv
Inventor
Gassmann
Original Assignee
Internat Standard Electric Co
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
Priority claimed from DEST22923A external-priority patent/DE1218020B/de
Application filed by Internat Standard Electric Co filed Critical Internat Standard Electric Co
Publication of FI47703B publication Critical patent/FI47703B/fi
Application granted granted Critical
Publication of FI47703C publication Critical patent/FI47703C/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/06—Means for changing frequency deviation
    • 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
    • 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
    • H03D1/2281—Homodyne or synchrodyne circuits using 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
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/004—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling an oscillator, e.g. the local oscillator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D5/00—Circuits for demodulating amplitude-modulated or angle-modulated oscillations at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
    • H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
    • H04B15/06—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder by local oscillators of receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Superheterodyne Receivers (AREA)
  • Amplifiers (AREA)
FI663206A 1964-11-10 1966-12-02 Förfarande för mottagning av högfrekventa elektriska vågor. FI47703C (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEST22923A DE1218020B (de) 1964-11-10 1964-11-10 Verfahren zur Demodulation einer hochfrequenten elektrischen Schwingung
DEST22927A DE1254200B (de) 1964-11-10 1964-11-11 Synchrodynempfaenger fuer hochfrequente elektrische Schwingungen
DEST023659 1965-04-09
DE1965ST024726 DE1283928C2 (de) 1964-11-10 1965-12-03 Synchrodynempfaenger fuer hochfrequente elektrische schwingungen

Publications (2)

Publication Number Publication Date
FI47703B FI47703B (sv) 1973-10-31
FI47703C true FI47703C (sv) 1974-02-11

Family

ID=27437448

Family Applications (1)

Application Number Title Priority Date Filing Date
FI663206A FI47703C (sv) 1964-11-10 1966-12-02 Förfarande för mottagning av högfrekventa elektriska vågor.

Country Status (4)

Country Link
AT (3) AT279690B (sv)
DE (3) DE1254200B (sv)
FI (1) FI47703C (sv)
FR (1) FR1466385A (sv)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB518480A (en) * 1938-07-23 1940-02-28 John Emyr Rhys Jones Improvements in or relating to electrical frequency-dependent control means, primarily for radio apparatus
DE864411C (de) * 1942-05-19 1953-01-26 Patelhold Patentverwertung Einrichtung zur Verringerung der Verstimmung eines Generators
BE482631A (sv) * 1946-03-04
GB662754A (en) * 1947-12-05 1951-12-12 Philips Nv Improvements in or relating to circuits for automatic frequency-correction

Also Published As

Publication number Publication date
DE1254200B (de) 1967-11-16
AT279690B (de) 1970-03-10
FR1466385A (fr) 1967-01-20
DE1283928C2 (de) 1976-03-25
DE1283928B (de) 1968-11-28
AT287803B (de) 1971-02-10
FI47703B (sv) 1973-10-31
AT280374B (de) 1970-04-10
DE1466420A1 (de) 1969-07-17

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