ES8101290A1 - Un sistema de senalizacion digital - Google Patents
Un sistema de senalizacion digitalInfo
- Publication number
- ES8101290A1 ES8101290A1 ES490898A ES490898A ES8101290A1 ES 8101290 A1 ES8101290 A1 ES 8101290A1 ES 490898 A ES490898 A ES 490898A ES 490898 A ES490898 A ES 490898A ES 8101290 A1 ES8101290 A1 ES 8101290A1
- Authority
- ES
- Spain
- Prior art keywords
- filters
- processor
- signalling system
- single band
- digital signalling
- 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.)
- Expired
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)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
UN SISTEMA RECEPTOR DE UNA SEÑAL DE FRECUENCIA ENTRE OTRAS VARIAS, ADAPTADO PARA SEÑALIZACION DIGITAL QUE INCLUYE ELEMENTOS EMISORES ACOPLADOS A ELEMENTOS RECEPTORES ADAPTADOS PARA REGENERAR AL MENOS UNA FRECUENCIA DE SEÑAL MUESTREADA, CUYOS VALORES DE MUESTRA SE CODIFICAN SEGUN LA LEY LOGARITMICA DE MODULACION POR IMPULSOS CODIFICADOS. CONSISTE EN UN MULTIRREGISTRADOR (MR) Y CUATRO RECEPTORES DE MULTIFRECUENCIA (RCO A RC 63), QUE RECIBE DOS GRUPOS DE CANALES MULTIPLEXADOS Y LOS TRANSFORMA EN UN SOLO GRUPO DE CANALES MULTIPLEXADOS, CADA UNO DE ESTOS RECEPTORES DE MULTIFRECUENCIA CONSTA DE UN SISTEMA DE FILTRO CON UNA PARTE DE FILTRO DIGITAL Y UN CONTADOR PARA SUMINISTRAR LOS IMPULSOS NECESARIOS A ESTA PARTE DE FILTRO UN PROCESADOR CON SUS MEMORIAS ASOCIADOS PARA PROCESAR LOS RESULTADOS DEL FILTRO SUMINISTRADOS POR LA PARTE DE FILTRO DIGITAL Y UN BUFFER DE SALIDA PARA ALMACENAR LOS RESULTADOS DEL PROCESADOR ANTES DE TRANSFERIRSE AL MULTIRREGISTRO. A
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7903346A NL7903346A (nl) | 1979-04-27 | 1979-04-27 | Digitaal signaleringsstelsel. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8101290A1 true ES8101290A1 (es) | 1980-12-01 |
ES490898A0 ES490898A0 (es) | 1980-12-01 |
Family
ID=19833070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES490898A Granted ES490898A0 (es) | 1979-04-27 | 1980-04-25 | Un sistema de senalizacion digital |
Country Status (13)
Country | Link |
---|---|
US (1) | US4355405A (es) |
JP (1) | JPS55159688A (es) |
AR (1) | AR228738A1 (es) |
AU (1) | AU539806B2 (es) |
BE (1) | BE882941A (es) |
BR (1) | BR8002591A (es) |
CH (1) | CH655419B (es) |
DE (1) | DE3015567C2 (es) |
ES (1) | ES490898A0 (es) |
FR (1) | FR2455405B1 (es) |
IT (1) | IT1196912B (es) |
MX (1) | MX149459A (es) |
NL (1) | NL7903346A (es) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2512306A1 (fr) * | 1981-08-27 | 1983-03-04 | Telecommunications Sa | Dispositif numerique de reconnaissance de frequences |
NL8200051A (nl) * | 1982-01-08 | 1983-08-01 | Philips Nv | Inrichting en werkwijze voor het detecteren van multifrequentie tooncodesignalen. |
NL8502008A (nl) * | 1985-07-12 | 1987-02-02 | Philips Nv | Ontvanginrichting voor het onder bescherming van een stoorsignaal/spraaksignaalbewakingsfunctie herkennen van een aantal verschillende en voorafbepaalde frequentiecombinaties van toonfrequente signaleringscomponenten. |
DD259987A3 (de) * | 1986-07-07 | 1988-09-14 | Rft Nachrichtenelektronik Albe | Verfahren und anordnung zum sprachschutz in mfc-tastwahlempfaengern |
US4845499A (en) * | 1987-11-02 | 1989-07-04 | Ag Communication Systems Corporation | Method for generating PCM logarithmic values from linear values |
GB2241853A (en) * | 1990-03-08 | 1991-09-11 | British Aerospace | Digital signal processing apparatus comprising architectures for digital multiplexing and demultiplexing. |
US5668836A (en) * | 1994-12-29 | 1997-09-16 | Motorola, Inc. | Split frequency band signal digitizer and method |
US5602874A (en) * | 1994-12-29 | 1997-02-11 | Motorola, Inc. | Method and apparatus for reducing quantization noise |
US5754597A (en) * | 1994-12-29 | 1998-05-19 | Motorola, Inc. | Method and apparatus for routing a digitized RF signal to a plurality of paths |
KR100203318B1 (ko) * | 1994-12-29 | 1999-06-15 | 모토로라, 인크 | 광대역 주파수 신호 디지타이저 및 방법 |
US5854813A (en) * | 1994-12-29 | 1998-12-29 | Motorola, Inc. | Multiple access up converter/modulator and method |
US5579341A (en) * | 1994-12-29 | 1996-11-26 | Motorola, Inc. | Multi-channel digital transceiver and method |
US5748683A (en) * | 1994-12-29 | 1998-05-05 | Motorola, Inc. | Multi-channel transceiver having an adaptive antenna array and method |
US5710763A (en) * | 1995-07-31 | 1998-01-20 | Motorola, Inc. | Filtered fast Fourier transmultiplexer and method |
GB2330727B (en) * | 1997-10-24 | 2002-10-09 | Mitel Corp | Tone and periodical signal detection |
US7623826B2 (en) * | 2004-07-22 | 2009-11-24 | Frank Pergal | Wireless repeater with arbitrary programmable selectivity |
US10133549B1 (en) * | 2017-12-04 | 2018-11-20 | Kyocera Document Solutions Inc. | Systems and methods for implementing a synchronous FIFO with registered outputs |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3150232A (en) * | 1961-02-06 | 1964-09-22 | Edward R Schmidt | Variable damping circuits |
US3436487A (en) * | 1965-09-14 | 1969-04-01 | Bell Telephone Labor Inc | Telephone signaling arrangement |
FR2141502B1 (es) * | 1971-06-01 | 1973-06-29 | Ibm France | |
US3863030A (en) * | 1972-06-01 | 1975-01-28 | Gte Automatic Electric Lab Inc | Pcm tone receiver using digital spectrum analysis |
FR2191827A5 (es) * | 1972-06-27 | 1974-02-01 | Socotel Mixte D Veloppem | |
US3824471A (en) * | 1972-12-01 | 1974-07-16 | Gte Automatic Electric Lab Inc | Pcm tone receiver using floating-point digital spectrum analysis |
NL7312548A (nl) * | 1973-09-12 | 1975-03-14 | Bell Telephone Mfg | Multifrequent signaleringsstelsel. |
FR2295665A1 (fr) * | 1974-12-18 | 1976-07-16 | Labo Cent Telecommunicat | Recepteur numerique de signaux multifrequences |
FR2299769A1 (fr) * | 1975-01-31 | 1976-08-27 | Telecommunications Sa | Procede d'application |
DE2553258C3 (de) * | 1975-11-27 | 1980-07-03 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltungsanordnung für einen digitalen Mehrfrequenz-Zeichenempfänger |
IT1072242B (it) * | 1976-12-17 | 1985-04-10 | Cselt Centro Studi Lab Telecom | Procedimento e dispositivo per il riconoscimento di segnali telefonici in codice multifrequenza convertiti in forma numerica |
-
1979
- 1979-04-27 NL NL7903346A patent/NL7903346A/nl not_active Application Discontinuation
-
1980
- 1980-04-22 AU AU57671/80A patent/AU539806B2/en not_active Ceased
- 1980-04-23 US US06/143,055 patent/US4355405A/en not_active Expired - Lifetime
- 1980-04-23 DE DE3015567A patent/DE3015567C2/de not_active Expired
- 1980-04-24 IT IT21664/80A patent/IT1196912B/it active
- 1980-04-24 BE BE2/58529A patent/BE882941A/nl not_active IP Right Cessation
- 1980-04-25 ES ES490898A patent/ES490898A0/es active Granted
- 1980-04-25 MX MX182107A patent/MX149459A/es unknown
- 1980-04-25 AR AR280818A patent/AR228738A1/es active
- 1980-04-28 JP JP5553680A patent/JPS55159688A/ja active Granted
- 1980-04-28 CH CH325380A patent/CH655419B/de unknown
- 1980-04-28 BR BR8002591A patent/BR8002591A/pt unknown
- 1980-04-28 FR FR8009534A patent/FR2455405B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE882941A (nl) | 1980-10-24 |
MX149459A (es) | 1983-11-08 |
DE3015567A1 (de) | 1980-11-13 |
CH655419B (es) | 1986-04-15 |
JPH0127640B2 (es) | 1989-05-30 |
ES490898A0 (es) | 1980-12-01 |
AU539806B2 (en) | 1984-10-18 |
US4355405A (en) | 1982-10-19 |
AU5767180A (en) | 1980-10-30 |
IT8021664A0 (it) | 1980-04-24 |
FR2455405A1 (fr) | 1980-11-21 |
JPS55159688A (en) | 1980-12-11 |
IT1196912B (it) | 1988-11-25 |
BR8002591A (pt) | 1980-12-09 |
DE3015567C2 (de) | 1986-09-11 |
NL7903346A (nl) | 1980-10-29 |
FR2455405B1 (fr) | 1987-08-07 |
AR228738A1 (es) | 1983-04-15 |
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