DK426389A - Fremgangsmaade og kredsloeb til konstatering af tilstedevaerelse eller ikke-tilstedevaerelse af mindst en frekvens med en kendt vaerdi i et af flere frekvenser sammensat indgangssignal - Google Patents

Fremgangsmaade og kredsloeb til konstatering af tilstedevaerelse eller ikke-tilstedevaerelse af mindst en frekvens med en kendt vaerdi i et af flere frekvenser sammensat indgangssignal

Info

Publication number
DK426389A
DK426389A DK426389A DK426389A DK426389A DK 426389 A DK426389 A DK 426389A DK 426389 A DK426389 A DK 426389A DK 426389 A DK426389 A DK 426389A DK 426389 A DK426389 A DK 426389A
Authority
DK
Denmark
Prior art keywords
frequency
input signal
case
known value
procedure
Prior art date
Application number
DK426389A
Other languages
English (en)
Other versions
DK426389D0 (da
Inventor
Richard Stepp
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
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of DK426389D0 publication Critical patent/DK426389D0/da
Publication of DK426389A publication Critical patent/DK426389A/da

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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0007—Frequency selective voltage or current level measuring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Fuel Cell (AREA)
  • Superheterodyne Receivers (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Circuits Of Receivers In General (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
DK426389A 1988-08-31 1989-08-30 Fremgangsmaade og kredsloeb til konstatering af tilstedevaerelse eller ikke-tilstedevaerelse af mindst en frekvens med en kendt vaerdi i et af flere frekvenser sammensat indgangssignal DK426389A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88114224A EP0356555B1 (de) 1988-08-31 1988-08-31 Verfahren und Schaltungsanordnung zur Feststellung des Vorhandenseins oder Nichtvorhandenseins mindestens einer Frequenz bekannten Wertes in einem aus mehreren Frequenzen zusammengesetzten Eingangssignal

Publications (2)

Publication Number Publication Date
DK426389D0 DK426389D0 (da) 1989-08-30
DK426389A true DK426389A (da) 1990-03-01

Family

ID=8199250

Family Applications (1)

Application Number Title Priority Date Filing Date
DK426389A DK426389A (da) 1988-08-31 1989-08-30 Fremgangsmaade og kredsloeb til konstatering af tilstedevaerelse eller ikke-tilstedevaerelse af mindst en frekvens med en kendt vaerdi i et af flere frekvenser sammensat indgangssignal

Country Status (9)

Country Link
US (1) US4991015A (da)
EP (1) EP0356555B1 (da)
JP (1) JPH02105784A (da)
AT (1) ATE96596T1 (da)
DE (1) DE3885279D1 (da)
DK (1) DK426389A (da)
ES (1) ES2045046T3 (da)
FI (1) FI894070A (da)
PT (1) PT91581B (da)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4006656C2 (de) * 1990-03-03 2002-01-24 Philips Corp Intellectual Pty Schaltungsanordnung zum Detektieren von Kennschwingungen
EP0512133B1 (de) * 1991-05-03 1997-01-02 Deutsche ITT Industries GmbH Verfahren zur automatischen Suchlaufabstimmung von Satelliten-Fernsehtonträgern
US5220683A (en) * 1991-08-26 1993-06-15 All Systems, Inc. Ultra-widebandwidth compressive receiver
DE4326524C1 (de) * 1993-08-06 1994-12-15 Siemens Ag Schaltungsanordnung zur Feststellung des Vorhandenseins oder Nichtvorhandenseins mindestens einer Frequenz bekannten Wertes in einem aus mehreren Frequenzen zusammengesetzten Eingangssignal
JP2616401B2 (ja) * 1993-09-16 1997-06-04 日本電気株式会社 パイロット信号検出回路
JP2699860B2 (ja) * 1994-03-24 1998-01-19 日本電気株式会社 パイロット信号検出回路およびパイロット信号検出方法
GB2491430B (en) * 2012-03-16 2013-12-04 Renesas Mobile Corp Reconfigurable radio frequency circuits and methods of receiving

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT303845B (de) * 1969-10-30 1972-12-11 Uzinele Elektronica Verfahren und Schaltungsanordnung für die Erzeugung von Frequenzmarken
FR2138549B1 (da) * 1971-05-19 1973-05-25 Ibm France
US4139866A (en) * 1976-02-18 1979-02-13 Telesonics, Inc. Stereophonic television sound transmission system
US4281411A (en) * 1979-06-25 1981-07-28 Signatron, Inc. High speed digital communication receiver
DE3340325A1 (de) * 1983-11-08 1985-05-15 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zur feststellung des vorhandenseins oder nichtvorhandenseins mindestens einer frequenz bekannten wertes in einem aus mehreren frequenzen zusammengesetzten eingangssignal
US4591915A (en) * 1984-04-18 1986-05-27 Oak Industries Inc. Remote volume control by means of frequency modulation feedback loop
US4571622A (en) * 1984-05-25 1986-02-18 Oak Industries Inc. Hybrid frequency modulation feedback loop remote volume control circuit
DE3569182D1 (en) * 1985-08-27 1989-05-03 Itt Ind Gmbh Deutsche Television sound receiving circuit for at least one audio channel contained in a hf signal
DE3783037D1 (de) * 1987-08-26 1993-01-21 Itt Ind Gmbh Deutsche Digitaler demodulator.

Also Published As

Publication number Publication date
PT91581B (pt) 1995-07-18
EP0356555B1 (de) 1993-10-27
ATE96596T1 (de) 1993-11-15
JPH02105784A (ja) 1990-04-18
EP0356555A1 (de) 1990-03-07
FI894070A (fi) 1990-03-01
DK426389D0 (da) 1989-08-30
PT91581A (pt) 1990-03-08
FI894070A0 (fi) 1989-08-30
DE3885279D1 (de) 1993-12-02
ES2045046T3 (es) 1994-01-16
US4991015A (en) 1991-02-05

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment