[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

SE8001611L - Digital tonsignalgenerator - Google Patents

Digital tonsignalgenerator

Info

Publication number
SE8001611L
SE8001611L SE8001611A SE8001611A SE8001611L SE 8001611 L SE8001611 L SE 8001611L SE 8001611 A SE8001611 A SE 8001611A SE 8001611 A SE8001611 A SE 8001611A SE 8001611 L SE8001611 L SE 8001611L
Authority
SE
Sweden
Prior art keywords
addresses
tone
samples
signal generator
sample sequence
Prior art date
Application number
SE8001611A
Other languages
Unknown language ( )
English (en)
Other versions
SE454830B (sv
Inventor
E A Munter
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of SE8001611L publication Critical patent/SE8001611L/sv
Publication of SE454830B publication Critical patent/SE454830B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/10—Arrangements for reducing cross-talk between channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/12—Arrangements providing for calling or supervisory signals
    • 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)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Time-Division Multiplex Systems (AREA)
SE8001611A 1979-03-01 1980-02-29 Sett och anordning for alstring av en digital tonsignal SE454830B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA322,547A CA1124898A (en) 1979-03-01 1979-03-01 Pcm tone signal generator

Publications (2)

Publication Number Publication Date
SE8001611L true SE8001611L (sv) 1980-09-02
SE454830B SE454830B (sv) 1988-05-30

Family

ID=4113653

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8001611A SE454830B (sv) 1979-03-01 1980-02-29 Sett och anordning for alstring av en digital tonsignal

Country Status (7)

Country Link
US (1) US4227248A (sv)
JP (1) JPS55117374A (sv)
AT (1) ATA108480A (sv)
CA (1) CA1124898A (sv)
FR (1) FR2450537A1 (sv)
GB (1) GB2044040B (sv)
SE (1) SE454830B (sv)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4349704A (en) * 1979-12-31 1982-09-14 Bell Telephone Laboratories, Incorporated Digital multifrequency signal generator
US4346263A (en) * 1980-01-14 1982-08-24 Badger Meter, Inc. Signalling arrangement for telephone equipment
US4347607A (en) * 1980-05-09 1982-08-31 Harris Corporation Voice alarm signalling system
US4394743A (en) * 1980-12-18 1983-07-19 Bell Telephone Laboratories, Incorporated Tone generation method and apparatus using stored reference calibration coefficients
FR2529426B1 (fr) * 1982-06-29 1988-05-06 Thomson Csf Mat Tel Generateur de frequences utilisees dans un autocommutateur temporel numerique
GB2128449B (en) * 1982-10-08 1985-12-11 Standard Telephones Cables Ltd Tone generation circuit
GB2134752B (en) * 1983-01-18 1986-08-06 Plessey Co Plc Tone generator
US4498171A (en) * 1983-05-06 1985-02-05 Northern Telecom Limited Tone source for telephone systems
US4535454A (en) * 1983-09-15 1985-08-13 At&T Information Systems Inc. Multifrequency tone distribution using a conferencing arrangement
DE3525125A1 (de) * 1985-07-13 1987-01-15 Bbc Brown Boveri & Cie Verfahren und einrichtung zur rbertragung binaerer datensignale durch frequenzumtastung
US4881190A (en) * 1986-09-02 1989-11-14 The United States Of America As Represented By The United States Department Of Energy Digitally programmable signal generator and method
JPS63187959A (ja) * 1987-01-30 1988-08-03 Pioneer Answerphone Mfg Corp 情報出力装置
US4881221A (en) * 1988-06-23 1989-11-14 Kentrox Industries, Inc. Method and apparatus for disabling an echo canceller on a digital telecommunications network
US5001660A (en) * 1989-04-27 1991-03-19 Hewlett-Packard Company Waveform generation method using stored complex data
US5123009A (en) * 1990-10-26 1992-06-16 Racal Data Communications Inc. Method and apparatus for disabling an echo canceller
US5604793A (en) * 1995-08-03 1997-02-18 Dialogic Corporation Tone blocking using variable delay buffer
KR100387042B1 (ko) * 1995-12-30 2003-08-14 삼성전자주식회사 톤신호발생장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706855A (en) * 1970-10-02 1972-12-19 Gte Automatic Electric Lab Inc Generator for digital pulse signals representative of analog signal pairs
FR2286552A1 (fr) * 1974-09-30 1976-04-23 Roche Bernard Generateur numerique de signaux du code a multifrequences
US4058805A (en) * 1975-06-16 1977-11-15 Comdial Corporation Digital multitone generator for telephone dialing
US3985965A (en) * 1975-07-02 1976-10-12 Gte Sylvania Incorporated Digital signal generator
US4110562A (en) * 1977-01-26 1978-08-29 Trw Inc. Service generator for generating a plurality of tones

Also Published As

Publication number Publication date
CA1124898A (en) 1982-06-01
ATA108480A (de) 1989-08-15
GB2044040B (en) 1983-03-23
GB2044040A (en) 1980-10-08
SE454830B (sv) 1988-05-30
JPS55117374A (en) 1980-09-09
US4227248A (en) 1980-10-07
FR2450537A1 (fr) 1980-09-26
FR2450537B1 (sv) 1984-04-06

Similar Documents

Publication Publication Date Title
SE8001611L (sv) Digital tonsignalgenerator
HK9283A (en) Digital tone generator for telephone dialling
IT1008240B (it) Generatore di coro per strumento musicale elettronico
ZA82709B (en) Apparatus for use in a telecommunications exchange
BE823387A (fr) Clavier d'introduction de donnees
JPS539514A (en) Pulse modulating system for digital musical tone synthesizer
GB1392818A (en) Telecommunication system with time division multiplex
GB1354931A (en) Digital source of periodic signals
IT1090819B (it) Apaprecchiatura di linea d'abbonato per centrale telefonica
JPS5345521A (en) Electronic instrument for generating plural musical tones
JPS541610A (en) Musical tone synthesizer for generating marimba effect
US3859472A (en) Code module for subscriber terminals
ES8206123A1 (es) Un generador de tono digital
KR930015908A (ko) Isdn 가입자 시험을 위한 시험장치
KR100194918B1 (ko) 톤발생장치
JPS57138248A (en) Subscriber's data generating method
JPS5538723A (en) Trunk connection test system
JPS6212708B2 (sv)
JPS5757072A (en) Conference service trunk
FR2430157A1 (fr) Reseau de commutation a division du temps a deux etages du type temporel-temporel
CA988756A (en) Musical tone generating apparatus
JPS56103566A (en) Digital conference telephone system
JPS5338318A (en) Electronic instrument for simultaneously generating plural musical tones
FR2382145A1 (fr) Montage pour central de telecommunication a multiplexage temporel, a commande centrale, plus particulierement pour central telephonique ayant des positions d'operatrice ou se produit une indication
ES378170A1 (es) Dispositivo para explorar un gran numero de puntos de ex- ploracion.

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8001611-6

Effective date: 19910117

Format of ref document f/p: F