IT7968456A0 - Generatore digitale di onde sinusoidali particolarmente per sistemi ditrasmissione di dati su linee telefoniche - Google Patents

Generatore digitale di onde sinusoidali particolarmente per sistemi ditrasmissione di dati su linee telefoniche

Info

Publication number
IT7968456A0
IT7968456A0 IT7968456A IT6845679A IT7968456A0 IT 7968456 A0 IT7968456 A0 IT 7968456A0 IT 7968456 A IT7968456 A IT 7968456A IT 6845679 A IT6845679 A IT 6845679A IT 7968456 A0 IT7968456 A0 IT 7968456A0
Authority
IT
Italy
Prior art keywords
data transmission
sine wave
wave generator
transmission systems
telephone lines
Prior art date
Application number
IT7968456A
Other languages
English (en)
Other versions
IT1119031B (it
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Publication of IT7968456A0 publication Critical patent/IT7968456A0/it
Application granted granted Critical
Publication of IT1119031B publication Critical patent/IT1119031B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/04—Trigonometric functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Complex Calculations (AREA)
  • Analogue/Digital Conversion (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
IT68456/79A 1978-07-13 1979-07-12 Generatore digitale di onde sinusoi dali particolarmente per sistemi di trasmissione di dati su linee telefoniche IT1119031B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7821006A FR2431221A1 (fr) 1978-07-13 1978-07-13 Generateur numerique d'ondes sinusoidales echantillonnees

Publications (2)

Publication Number Publication Date
IT7968456A0 true IT7968456A0 (it) 1979-07-12
IT1119031B IT1119031B (it) 1986-03-03

Family

ID=9210745

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68456/79A IT1119031B (it) 1978-07-13 1979-07-12 Generatore digitale di onde sinusoi dali particolarmente per sistemi di trasmissione di dati su linee telefoniche

Country Status (10)

Country Link
US (1) US4285044A (it)
BE (1) BE877570A (it)
CA (1) CA1142605A (it)
DE (1) DE2927713A1 (it)
FR (1) FR2431221A1 (it)
GB (1) GB2025668B (it)
IT (1) IT1119031B (it)
LU (1) LU81487A1 (it)
NL (1) NL189783C (it)
SE (1) SE7906082L (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112570C2 (de) * 1981-03-30 1983-12-22 Siemens AG, 1000 Berlin und 8000 München Digitaler Cosinus-Generator
DE3119448C2 (de) * 1981-05-15 1984-10-11 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Erzeugung eines cosinusförmigen Signals und eines sinusförmigen Signals
US4494073A (en) * 1982-09-27 1985-01-15 Cubic Corporation Frequency generator using composite digitally controlled oscillators
US4577287A (en) * 1983-03-02 1986-03-18 At&T Bell Laboratories Method and apparatus for generating digital signals representing periodic samples of a sine wave
FR2589018A1 (fr) * 1985-10-22 1987-04-24 Thomson Csf Procede de synthese de frequence et appareil synthetiseur utilisant ce procede
US4696017A (en) * 1986-02-03 1987-09-22 E-Systems, Inc. Quadrature signal generator having digitally-controlled phase and amplitude correction
AT399236B (de) * 1986-02-03 1995-04-25 Siemens Ag Oesterreich Digitaler sinusgenerator
US4761751A (en) * 1986-07-29 1988-08-02 American Telephone And Telegraph Company At&T Bell Laboratories Method and apparatus for generating digital signals representing periodic samples of a sine wave
DE3740130C1 (de) * 1987-11-26 1989-06-08 Rohde & Schwarz Sinusgenerator
US4888719A (en) * 1988-07-21 1989-12-19 General Electric Company Sampled-data sine wave and cosine wave generation by accumulation
DE4140132C2 (de) * 1991-12-05 1994-07-21 Blaupunkt Werke Gmbh Digitaler Oszillator
US5198779A (en) * 1992-04-29 1993-03-30 Novatel Communications Ltd. Digital oscillator
US5517535A (en) * 1994-10-13 1996-05-14 Westinghouse Electric Corp. Numerically controlled oscillator with complex exponential outputs using recursion technique
US5619154A (en) * 1995-10-10 1997-04-08 David Sarnoff Research Center, Inc. Numerical voltage controlled oscillator
DE19727303C1 (de) * 1997-06-27 1998-09-17 Telefunken Microelectron Schaltungsanordnung mit einem Datenfolgengenerator
IL132161A (en) 1999-09-30 2002-09-12 Netmor Ltd Digital coherent envelope demodulation of fdma signals
US6892213B2 (en) 2000-09-28 2005-05-10 Seagate Technology Llc Digital sine/cosine wave generator
US6931082B2 (en) 2001-04-10 2005-08-16 Netmor Ltd. Digital phase locked loop
FR2897731B1 (fr) * 2006-02-17 2008-11-14 Airbus France Sas Generateur de signaux alternatifs, tels que des signaux de reference, et aeronef equipe d'un tel generateur
US7911816B2 (en) * 2006-09-13 2011-03-22 Hypertherm, Inc. Linear, inductance based control of regulated electrical properties in a switch mode power supply of a thermal processing system
US8655934B2 (en) * 2007-01-09 2014-02-18 General Instrument Corporation Broadband low noise complex regenerative frequency dividers
FR2918236A1 (fr) * 2007-06-26 2009-01-02 France Telecom Procede et dispositif de generation numerique de frequence.
US8766729B2 (en) 2011-10-05 2014-07-01 Blackberry Limited Apparatus, and associated method, for forming a synthesized oscillating signal
EP2579121B1 (en) * 2011-10-05 2020-12-02 BlackBerry Limited Apparatus, and associated method, for forming a synthesized oscillating signal
US9473203B2 (en) 2012-04-30 2016-10-18 Metrotech Corporation Signal select in underground line location
US11656848B2 (en) * 2019-09-18 2023-05-23 Stmicroelectronics International N.V. High throughput parallel architecture for recursive sinusoid synthesizer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649821A (en) * 1970-06-15 1972-03-14 Philco Ford Corp Digital multiple-tone generator
US3679881A (en) * 1970-06-19 1972-07-25 Western Electric Co Digital sine wave generator and method
GB1331410A (en) * 1970-08-13 1973-09-26 Solartron Electronic Group Digital calculating apparatus for performing the cordic algo- rithm
DE2701859B1 (de) * 1977-01-18 1978-06-15 Siemens Ag Verfahren und digitaler Generator zur direkten Synthese von Sinusschwingungen
US4159526A (en) * 1977-08-08 1979-06-26 Ncr Corporation Digitally controlled variable frequency oscillator

Also Published As

Publication number Publication date
IT1119031B (it) 1986-03-03
GB2025668A (en) 1980-01-23
GB2025668B (en) 1982-04-21
NL189783B (nl) 1993-02-16
SE7906082L (sv) 1980-01-14
US4285044A (en) 1981-08-18
DE2927713A1 (de) 1980-04-17
FR2431221B1 (it) 1981-03-06
FR2431221A1 (fr) 1980-02-08
CA1142605A (en) 1983-03-08
NL189783C (nl) 1993-07-16
LU81487A1 (fr) 1980-02-14
BE877570A (fr) 1980-01-09
DE2927713C2 (it) 1989-06-15
NL7905425A (nl) 1980-01-15

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940531