FR2424669B1 - - Google Patents

Info

Publication number
FR2424669B1
FR2424669B1 FR7812477A FR7812477A FR2424669B1 FR 2424669 B1 FR2424669 B1 FR 2424669B1 FR 7812477 A FR7812477 A FR 7812477A FR 7812477 A FR7812477 A FR 7812477A FR 2424669 B1 FR2424669 B1 FR 2424669B1
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
FR7812477A
Other versions
FR2424669A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7812477A priority Critical patent/FR2424669A1/fr
Priority to SU792752657A priority patent/SU1107760A3/ru
Priority to US06/032,379 priority patent/US4286326A/en
Priority to AU46371/79A priority patent/AU4637179A/en
Priority to GR58960A priority patent/GR66643B/el
Priority to SE7903656A priority patent/SE435971B/sv
Priority to BR7902551A priority patent/BR7902551A/pt
Priority to TR20399A priority patent/TR20399A/xx
Priority to ES479955A priority patent/ES479955A1/es
Priority to GB7914602A priority patent/GB2020070B/en
Priority to BE0/194843A priority patent/BE875865A/fr
Priority to CA000326464A priority patent/CA1120104A/fr
Priority to DE19792917285 priority patent/DE2917285A1/de
Priority to IT22192/79A priority patent/IT1113914B/it
Publication of FR2424669A1 publication Critical patent/FR2424669A1/fr
Application granted granted Critical
Publication of FR2424669B1 publication Critical patent/FR2424669B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Complex Calculations (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
FR7812477A 1978-04-27 1978-04-27 Dispositifs analyseurs numeriques de spectres Granted FR2424669A1 (fr)

Priority Applications (14)

Application Number Priority Date Filing Date Title
FR7812477A FR2424669A1 (fr) 1978-04-27 1978-04-27 Dispositifs analyseurs numeriques de spectres
SU792752657A SU1107760A3 (ru) 1978-04-27 1979-04-23 Устройство цифрового анализа спектра сигнала квантованного по частоте и кодированного дл распознавани нескольких особых частот
US06/032,379 US4286326A (en) 1978-04-27 1979-04-23 Digital devices for spectrum analysis
AU46371/79A AU4637179A (en) 1978-04-27 1979-04-23 Digital devices for spectrum analysis
GR58960A GR66643B (fr) 1978-04-27 1979-04-24
BR7902551A BR7902551A (pt) 1978-04-27 1979-04-25 Dispositivos analisadores numericos de espectros
SE7903656A SE435971B (sv) 1978-04-27 1979-04-25 Digital spektralanalysatoranordning
TR20399A TR20399A (tr) 1978-04-27 1979-04-26 Nuemerik spektfum analiz cihazlari
ES479955A ES479955A1 (es) 1978-04-27 1979-04-26 Dispositivo analizador numerico de espectro de una senal.
GB7914602A GB2020070B (en) 1978-04-27 1979-04-26 Digital denices for spectrum analysis
BE0/194843A BE875865A (fr) 1978-04-27 1979-04-26 Dispositifs analyseurs numeriques de spectres
CA000326464A CA1120104A (fr) 1978-04-27 1979-04-26 Dispositifs analyseurs numeriques de spectres
DE19792917285 DE2917285A1 (de) 1978-04-27 1979-04-27 Digitaler spektralanalysator
IT22192/79A IT1113914B (it) 1978-04-27 1979-04-27 Dispositivo analizzatori numerici di spettri

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7812477A FR2424669A1 (fr) 1978-04-27 1978-04-27 Dispositifs analyseurs numeriques de spectres

Publications (2)

Publication Number Publication Date
FR2424669A1 FR2424669A1 (fr) 1979-11-23
FR2424669B1 true FR2424669B1 (fr) 1980-09-19

Family

ID=9207648

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7812477A Granted FR2424669A1 (fr) 1978-04-27 1978-04-27 Dispositifs analyseurs numeriques de spectres

Country Status (14)

Country Link
US (1) US4286326A (fr)
AU (1) AU4637179A (fr)
BE (1) BE875865A (fr)
BR (1) BR7902551A (fr)
CA (1) CA1120104A (fr)
DE (1) DE2917285A1 (fr)
ES (1) ES479955A1 (fr)
FR (1) FR2424669A1 (fr)
GB (1) GB2020070B (fr)
GR (1) GR66643B (fr)
IT (1) IT1113914B (fr)
SE (1) SE435971B (fr)
SU (1) SU1107760A3 (fr)
TR (1) TR20399A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408284A (en) * 1981-01-19 1983-10-04 The United States Of America As Represented By The Secretary Of The Navy Signal processing system
FR2512306A1 (fr) * 1981-08-27 1983-03-04 Telecommunications Sa Dispositif numerique de reconnaissance de frequences
DE3273552D1 (en) * 1982-06-25 1986-11-06 Ibm Tone receiver for a digital data transmission system
US4608647A (en) * 1983-10-24 1986-08-26 E-Systems, Inc. Method and apparatus for determining the noise power ratio (NPR) of a unit under test
US4783754A (en) * 1984-07-02 1988-11-08 Motorola, Inc. Preprocessor for spectral pattern classification systems
EP0243561B1 (fr) * 1986-04-30 1991-04-10 International Business Machines Corporation Procédé et dispositif pour la détection de tonalités
US4839842A (en) * 1987-07-24 1989-06-13 Advanced Micro Devices Digital tone detection and generation
GB2207770B (en) * 1987-08-06 1991-09-11 Nat Research And Dev Corp The Apparatus and methods for spectral analysis of electrical materials,components and devices
US4980849A (en) * 1989-02-28 1990-12-25 Raytheon Company Method and apparatus for autoregressive model simulation
US5301123A (en) * 1990-01-30 1994-04-05 Board Of Governors For Higher Education, State Of Rhode Island And Providence Plantations Zero crossing based spectrum analyzer and method
US5262957A (en) * 1990-11-09 1993-11-16 Global Communications, Inc. Inexpensive portable RF spectrum analyzer with calibration features
DE4225401C1 (de) * 1992-07-29 1994-05-26 Siemens Ag Verfahren zum Bestimmen spektraler Anteile eines Signals und Vorrichtung zur Durchführung des Verfahrens
CA2116043C (fr) * 1994-02-21 1997-09-23 Alexander F. Tulai Detecteur de tonalites de progression d'appel numerique programmable
US5910906A (en) * 1996-07-25 1999-06-08 Northern Telecom Limited Digital single-frequency tone detection in presence of aliases
KR100317598B1 (ko) 1999-03-13 2001-12-22 박찬구 라플라스 변환 임피던스 측정방법 및 측정장치
US6681191B1 (en) * 1999-12-21 2004-01-20 Tektronix, Inc. Frequency domain analysis system for a time domain measurement instrument
EP1421395A2 (fr) * 2001-08-22 2004-05-26 Wavecrest Corporation Procede et appareil de mesure d'une forme d'onde
US6751564B2 (en) * 2002-05-28 2004-06-15 David I. Dunthorn Waveform analysis
US20070027675A1 (en) * 2005-07-26 2007-02-01 Lecroy Corporation Spectrum analyzer control in an oscilloscope

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466431A (en) * 1966-12-30 1969-09-09 Weston Instruments Inc D.c. power spectrum and fourier transform analyzer
US3573446A (en) * 1967-06-06 1971-04-06 Univ Iowa State Res Found Inc Real-time digital spectrum analyzer utilizing the fast fourier transform
US3881097A (en) * 1973-05-14 1975-04-29 Weston Instruments Inc Fully digital spectrum analyzer using time compression and discrete fourier transform techniques
US3920978A (en) * 1974-02-25 1975-11-18 Sanders Associates Inc Spectrum analyzer
US3903401A (en) * 1974-06-27 1975-09-02 Bell Telephone Labor Inc Spectrum analyzer using delta modulation encoding
US4080516A (en) * 1975-10-06 1978-03-21 Hitachi, Ltd. Multi-frequency signal receiver
US4093989A (en) * 1976-12-03 1978-06-06 Rockland Systems Corporation Spectrum analyzer using digital filters
JPS6016582B2 (ja) * 1977-03-04 1985-04-26 日本電気株式会社 デイジタル周波数分析装置

Also Published As

Publication number Publication date
SU1107760A3 (ru) 1984-08-07
BR7902551A (pt) 1979-10-30
US4286326A (en) 1981-08-25
GR66643B (fr) 1981-04-03
GB2020070A (en) 1979-11-07
AU4637179A (en) 1979-11-01
DE2917285A1 (de) 1979-11-08
ES479955A1 (es) 1980-01-01
TR20399A (tr) 1981-06-03
SE435971B (sv) 1984-10-29
BE875865A (fr) 1979-08-16
FR2424669A1 (fr) 1979-11-23
IT7922192A0 (it) 1979-04-27
GB2020070B (en) 1982-03-31
IT1113914B (it) 1986-01-27
SE7903656L (sv) 1979-10-28
CA1120104A (fr) 1982-03-16

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Legal Events

Date Code Title Description
ST Notification of lapse