CH538784A - Empfangsstelle für UKW-Tonrundfunksignale - Google Patents

Empfangsstelle für UKW-Tonrundfunksignale

Info

Publication number
CH538784A
CH538784A CH538784DA CH538784A CH 538784 A CH538784 A CH 538784A CH 538784D A CH538784D A CH 538784DA CH 538784 A CH538784 A CH 538784A
Authority
CH
Switzerland
Prior art keywords
receiving station
broadcast signals
audio broadcast
vhf
vhf audio
Prior art date
Application number
Other languages
English (en)
Inventor
Ludwig Otto
Schalamon Friedrich
Original Assignee
Siemens Ag
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 DE19712140680 external-priority patent/DE2140680C3/de
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of CH538784A publication Critical patent/CH538784A/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • 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
    • 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
    • H03D7/18—Modifications of frequency-changers for eliminating image frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Transmitters (AREA)
  • Stereo-Broadcasting Methods (AREA)
CH538784D 1971-08-13 1972-04-26 Empfangsstelle für UKW-Tonrundfunksignale CH538784A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712140680 DE2140680C3 (de) 1971-08-13 Empfangsstelle für UKW-Tonrundfunksignale
DE19792902650 DE2902650A1 (de) 1971-08-13 1979-01-24 Empfangsstelle fuer ukw-tonrundfunksignale

Publications (1)

Publication Number Publication Date
CH538784A true CH538784A (de) 1973-08-15

Family

ID=25761597

Family Applications (1)

Application Number Title Priority Date Filing Date
CH538784D CH538784A (de) 1971-08-13 1972-04-26 Empfangsstelle für UKW-Tonrundfunksignale

Country Status (4)

Country Link
CH (1) CH538784A (de)
DE (1) DE2902650A1 (de)
GB (1) GB1324679A (de)
NL (2) NL175867C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6115363A (en) * 1997-02-19 2000-09-05 Nortel Networks Corporation Transceiver bandwidth extension using double mixing
EP1710907A1 (de) * 2005-04-05 2006-10-11 Siemens Schweiz AG System zur Leistungsoptimierten Wiedergabe von Sprache

Also Published As

Publication number Publication date
NL175867C (nl) 1985-01-02
NL8000468A (nl) 1980-07-28
DE2902650A1 (de) 1980-07-31
DE2140680A1 (de) 1973-02-22
DE2140680B2 (de) 1976-04-08
GB1324679A (en) 1973-07-25
NL175867B (nl) 1984-08-01
NL7208423A (de) 1973-02-15

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Legal Events

Date Code Title Description
PL Patent ceased