FR2424669A1 - Dispositifs analyseurs numeriques de spectres - Google Patents
Dispositifs analyseurs numeriques de spectresInfo
- Publication number
- FR2424669A1 FR2424669A1 FR7812477A FR7812477A FR2424669A1 FR 2424669 A1 FR2424669 A1 FR 2424669A1 FR 7812477 A FR7812477 A FR 7812477A FR 7812477 A FR7812477 A FR 7812477A FR 2424669 A1 FR2424669 A1 FR 2424669A1
- Authority
- FR
- France
- Prior art keywords
- digital
- 2pfkt
- frequency
- spectrum analyzers
- digital spectrum
- Prior art date
- 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.)
- Granted
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
Abstract
L'INVENTION CONCERNE LES DISPOSITIFS ANALYSEURS NUMERIQUES DE SPECTRES. LE SIGNAL XT DE SPECTRE XF, ECHANTILLONNE A LA FREQUENCE 1T ET CODE, EST TRAITE PAR UN FILTRE NUMERIQUE TEMPOREL DE LARGEUR NT SUIVI D'UN OU PLUSIEURS RESONATEURS NUMERIQUES PARFAITS EN PARALLELE CHACUN ACCORDE SUR UNE FREQUENCE PROPRE PREDETERMINEE F ET MUNI DE DEUX SORTIES "SINUS" ET "COSINUS" OU SE FORMENT RESPECTIVEMENT APRES LE TEMPS NT LES SIGNAUX NUMERIQUES : X F SIN 2PFKT ET X F COS 2PFKT D'OU L'ON PEUT TIRER, PAR DES TRAITEMENTS NUMERIQUES CLASSIQUES : X F. APPLICATION AUX RECEPTEURS DE SIGNAUX MULTIFREQUENCES CODES UTILISES EN COMMUTATION.
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 |
AU46371/79A AU4637179A (en) | 1978-04-27 | 1979-04-23 | Digital devices for spectrum analysis |
US06/032,379 US4286326A (en) | 1978-04-27 | 1979-04-23 | Digital devices for spectrum analysis |
GR58960A GR66643B (fr) | 1978-04-27 | 1979-04-24 | |
SE7903656A SE435971B (sv) | 1978-04-27 | 1979-04-25 | Digital spektralanalysatoranordning |
BR7902551A BR7902551A (pt) | 1978-04-27 | 1979-04-25 | Dispositivos analisadores numericos de espectros |
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 |
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. |
CA000326464A CA1120104A (fr) | 1978-04-27 | 1979-04-26 | Dispositifs analyseurs numeriques de spectres |
IT22192/79A IT1113914B (it) | 1978-04-27 | 1979-04-27 | Dispositivo analizzatori numerici di spettri |
DE19792917285 DE2917285A1 (de) | 1978-04-27 | 1979-04-27 | Digitaler spektralanalysator |
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 true FR2424669A1 (fr) | 1979-11-23 |
FR2424669B1 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) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2512306A1 (fr) * | 1981-08-27 | 1983-03-04 | Telecommunications Sa | Dispositif numerique de reconnaissance de frequences |
EP0097753A1 (fr) * | 1982-06-25 | 1984-01-11 | International Business Machines Corporation | Dispositif récepteur de tonalité pour système de transmission de données numériques |
EP0300265A2 (fr) * | 1987-07-24 | 1989-01-25 | Advanced Micro Devices, Inc. | Procédé de détection numérique de tonalités |
Families Citing this family (16)
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 |
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 |
DE3678717D1 (de) * | 1986-04-30 | 1991-05-16 | Ibm | Verfahren und einrichtung zur tonerkennung. |
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 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4080516A (en) * | 1975-10-06 | 1978-03-21 | Hitachi, Ltd. | Multi-frequency signal receiver |
Family Cites Families (7)
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 |
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 |
-
1978
- 1978-04-27 FR FR7812477A patent/FR2424669A1/fr active Granted
-
1979
- 1979-04-23 US US06/032,379 patent/US4286326A/en not_active Expired - Lifetime
- 1979-04-23 AU AU46371/79A patent/AU4637179A/en not_active Abandoned
- 1979-04-23 SU SU792752657A patent/SU1107760A3/ru active
- 1979-04-24 GR GR58960A patent/GR66643B/el unknown
- 1979-04-25 BR BR7902551A patent/BR7902551A/pt unknown
- 1979-04-25 SE SE7903656A patent/SE435971B/sv not_active IP Right Cessation
- 1979-04-26 ES ES479955A patent/ES479955A1/es not_active Expired
- 1979-04-26 BE BE0/194843A patent/BE875865A/fr not_active IP Right Cessation
- 1979-04-26 GB GB7914602A patent/GB2020070B/en not_active Expired
- 1979-04-26 TR TR20399A patent/TR20399A/xx unknown
- 1979-04-26 CA CA000326464A patent/CA1120104A/fr not_active Expired
- 1979-04-27 IT IT22192/79A patent/IT1113914B/it active
- 1979-04-27 DE DE19792917285 patent/DE2917285A1/de not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4080516A (en) * | 1975-10-06 | 1978-03-21 | Hitachi, Ltd. | Multi-frequency signal receiver |
Non-Patent Citations (2)
Title |
---|
EXBK/73 * |
NV688/72 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2512306A1 (fr) * | 1981-08-27 | 1983-03-04 | Telecommunications Sa | Dispositif numerique de reconnaissance de frequences |
EP0073719A1 (fr) * | 1981-08-27 | 1983-03-09 | Societe Anonyme De Telecommunications (S.A.T.) | Dispositif numérique de reconnaissance de fréquences |
EP0097753A1 (fr) * | 1982-06-25 | 1984-01-11 | International Business Machines Corporation | Dispositif récepteur de tonalité pour système de transmission de données numériques |
EP0300265A2 (fr) * | 1987-07-24 | 1989-01-25 | Advanced Micro Devices, Inc. | Procédé de détection numérique de tonalités |
EP0300265A3 (en) * | 1987-07-24 | 1990-10-24 | Advanced Micro Devices, Inc. | Digital tone detection and generation |
Also Published As
Publication number | Publication date |
---|---|
BR7902551A (pt) | 1979-10-30 |
IT7922192A0 (it) | 1979-04-27 |
AU4637179A (en) | 1979-11-01 |
DE2917285A1 (de) | 1979-11-08 |
BE875865A (fr) | 1979-08-16 |
GB2020070A (en) | 1979-11-07 |
US4286326A (en) | 1981-08-25 |
FR2424669B1 (fr) | 1980-09-19 |
SE7903656L (sv) | 1979-10-28 |
IT1113914B (it) | 1986-01-27 |
TR20399A (tr) | 1981-06-03 |
SE435971B (sv) | 1984-10-29 |
ES479955A1 (es) | 1980-01-01 |
SU1107760A3 (ru) | 1984-08-07 |
CA1120104A (fr) | 1982-03-16 |
GB2020070B (en) | 1982-03-31 |
GR66643B (fr) | 1981-04-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |