IT8021664A0 - Sistema di segnalazione digitale. - Google Patents

Sistema di segnalazione digitale.

Info

Publication number: IT8021664A0
Authority: IT; Italy
Prior art keywords: signaling system; digital signaling; digital; signaling
Prior art date: 1979-04-27

Application number

IT8021664A

Other languages

English (en)

Other versions

IT1196912B (it

Inventor

Ruys Willi Arthur Henri

O'reilly Dermod Josep Kavanagh

Verbist Leopold Paul

Hoefkens Daniel Simon Gregoire

Thyssens Guido Maria J Benedit

Original Assignee

Int Standard Electric Corp

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.)

1979-04-27

Filing date

1980-04-24

Publication date

1980-04-24

1980-04-24 Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp

1980-04-24 Publication of IT8021664A0 publication Critical patent/IT8021664A0/it

1988-11-25 Application granted granted Critical

1988-11-25 Publication of IT1196912B publication Critical patent/IT1196912B/it

Links

230000011664 signaling Effects 0.000 title 1

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)
Time-Division Multiplex Systems (AREA)
Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

IT21664/80A 1979-04-27 1980-04-24 Sistema di segnalazione digitale IT1196912B (it)

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
IT8021664A0 true IT8021664A0 (it)	1980-04-24
IT1196912B IT1196912B (it)	1988-11-25

Family

ID=19833070

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT21664/80A IT1196912B (it)	1979-04-27	1980-04-24	Sistema di segnalazione digitale

Country Status (13)

Country	Link
US (1)	US4355405A (it)
JP (1)	JPS55159688A (it)
AR (1)	AR228738A1 (it)
AU (1)	AU539806B2 (it)
BE (1)	BE882941A (it)
BR (1)	BR8002591A (it)
CH (1)	CH655419B (it)
DE (1)	DE3015567C2 (it)
ES (1)	ES8101290A1 (it)
FR (1)	FR2455405B1 (it)
IT (1)	IT1196912B (it)
MX (1)	MX149459A (it)
NL (1)	NL7903346A (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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.
US5579341A (en) *	1994-12-29	1996-11-26	Motorola, Inc.	Multi-channel digital transceiver and method
US5602874A (en) *	1994-12-29	1997-02-11	Motorola, Inc.	Method and apparatus for reducing quantization noise
US5854813A (en) *	1994-12-29	1998-12-29	Motorola, Inc.	Multiple access up converter/modulator and method
KR100203318B1 (ko) *	1994-12-29	1999-06-15	모토로라, 인크	광대역 주파수 신호 디지타이저 및 방법
US5668836A (en) *	1994-12-29	1997-09-16	Motorola, Inc.	Split frequency band signal digitizer and method
US5754597A (en) *	1994-12-29	1998-05-19	Motorola, Inc.	Method and apparatus for routing a digitized RF signal to a plurality of paths
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)

* Cited by examiner, † Cited by third party
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 (it) *	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 (it) *	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 DE DE3015567A patent/DE3015567C2/de not_active Expired
- 1980-04-23 US US06/143,055 patent/US4355405A/en not_active Expired - Lifetime
- 1980-04-24 BE BE2/58529A patent/BE882941A/nl not_active IP Right Cessation
- 1980-04-24 IT IT21664/80A patent/IT1196912B/it active
- 1980-04-25 AR AR280818A patent/AR228738A1/es active
- 1980-04-25 MX MX182107A patent/MX149459A/es unknown
- 1980-04-25 ES ES490898A patent/ES8101290A1/es not_active Expired
- 1980-04-28 BR BR8002591A patent/BR8002591A/pt unknown
- 1980-04-28 JP JP5553680A patent/JPS55159688A/ja active Granted
- 1980-04-28 CH CH325380A patent/CH655419B/de unknown
- 1980-04-28 FR FR8009534A patent/FR2455405B1/fr not_active Expired

Also Published As

Publication number	Publication date
AU539806B2 (en)	1984-10-18
BR8002591A (pt)	1980-12-09
DE3015567A1 (de)	1980-11-13
ES490898A0 (es)	1980-12-01
NL7903346A (nl)	1980-10-29
IT1196912B (it)	1988-11-25
ES8101290A1 (es)	1980-12-01
MX149459A (es)	1983-11-08
BE882941A (nl)	1980-10-24
JPH0127640B2 (it)	1989-05-30
FR2455405B1 (fr)	1987-08-07
AR228738A1 (es)	1983-04-15
US4355405A (en)	1982-10-19
JPS55159688A (en)	1980-12-11
DE3015567C2 (de)	1986-09-11
FR2455405A1 (fr)	1980-11-21
CH655419B (it)	1986-04-15
AU5767180A (en)	1980-10-30

Publication	Publication Date	Title
IT8324171A0 (it)	1983-12-14	Sistema di trasmissione di segnali digitali.
IT8324205A0 (it)	1983-12-16	Sistema di trasmissione di segnali digitali.
ATE18839T1 (de)	1986-04-15	Digitales funksystem.
IT8419528A0 (it)	1984-02-09	Sistema commutatore digitale.
IT8323537A0 (it)	1983-10-28	Sistema di matrizzazione digitale.
MX148070A (es)	1983-03-10	Sistema de procesamiento de informacion digital mejorado
BE881812A (nl)	1980-06-16	Meldingsstelsel
IT8021664A0 (it)	1980-04-24	Sistema di segnalazione digitale.
NO801760L (no)	1980-12-22	Mikroboelge-landingssystem.
NO801269L (no)	1981-02-10	Boeye - manifoldsystem.
NO154777C (no)	1986-12-17	Radarsystem.
BR8003879A (pt)	1981-01-13	Sistema de interrupcao
IT1098893B (it)	1985-09-18	Sistema di trasmissione,di tipo digitale
IT1209325B (it)	1989-07-16	Sistema di segnalazione.
NL185692C (nl)	1990-06-18	Wegsignaleringsstelsel.
IT8023714A0 (it)	1980-07-25	Impianto multicompressori.
NO802017L (no)	1981-01-07	Mikroboelge-landingssystem.
BR8002716A (pt)	1980-12-16	Sistema telefonico
NO772789L (no)	1978-02-14	Digitalt radaranlegg.
NO822655L (no)	1983-02-07	Skruesystem.
NL189929C (nl)	1993-09-01	Ringmagneetsysteem.
IT8024070A0 (it)	1980-08-08	Impianto di segnalazione.
IT8121939A0 (it)	1981-05-25	Sistema digitale di fasatura.
NO822783L (no)	1983-02-18	Ammunisjons-haandteringssystem.
IT7828120A0 (it)	1978-09-27	Sistema di commutazione di segnali numerici.