FR2429468A1 - Digital generator for sinusoidal signals - includes three function multipliers feeding back into adder and delay line - Google Patents

Digital generator for sinusoidal signals - includes three function multipliers feeding back into adder and delay line

Info

Publication number
FR2429468A1
FR2429468A1 FR7818527A FR7818527A FR2429468A1 FR 2429468 A1 FR2429468 A1 FR 2429468A1 FR 7818527 A FR7818527 A FR 7818527A FR 7818527 A FR7818527 A FR 7818527A FR 2429468 A1 FR2429468 A1 FR 2429468A1
Authority
FR
France
Prior art keywords
adder
input
delay line
feeding back
sinusoidal signals
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
Application number
FR7818527A
Other languages
French (fr)
Other versions
FR2429468B1 (en
Inventor
Gilbert Camille Guyot
Jean-Pierre Houdard
Alain Jean-Pierre Lebrun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7818527A priority Critical patent/FR2429468A1/en
Publication of FR2429468A1 publication Critical patent/FR2429468A1/en
Application granted granted Critical
Publication of FR2429468B1 publication Critical patent/FR2429468B1/fr
Granted legal-status Critical Current

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

The digital generator for a pure sinusoidal signal includes a digital resonator tuned to a given frequency (fi). This comprises a first two input adder and two live memories connected in series to act as delay circuits, the input of the first being connected to the adder input. A multiplier by 2 cos xi (xi = 2 pi fi T) is connected between the first memory output and the first input of the adder. A multiplier by (-1) is connected between the second memory output and the second input of the adder. A third multiplier by sin xi is connected between the first memory output and an output where the series of values corresponding to the sinusoidal signal is produced.
FR7818527A 1978-06-21 1978-06-21 Digital generator for sinusoidal signals - includes three function multipliers feeding back into adder and delay line Granted FR2429468A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7818527A FR2429468A1 (en) 1978-06-21 1978-06-21 Digital generator for sinusoidal signals - includes three function multipliers feeding back into adder and delay line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7818527A FR2429468A1 (en) 1978-06-21 1978-06-21 Digital generator for sinusoidal signals - includes three function multipliers feeding back into adder and delay line

Publications (2)

Publication Number Publication Date
FR2429468A1 true FR2429468A1 (en) 1980-01-18
FR2429468B1 FR2429468B1 (en) 1982-04-02

Family

ID=9209792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818527A Granted FR2429468A1 (en) 1978-06-21 1978-06-21 Digital generator for sinusoidal signals - includes three function multipliers feeding back into adder and delay line

Country Status (1)

Country Link
FR (1) FR2429468A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300265A2 (en) * 1987-07-24 1989-01-25 Advanced Micro Devices, Inc. Digital tone detection method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291652A1 (en) * 1974-11-14 1976-06-11 Philips Nv DIGITAL SIGNAL PROCESSING DEVICE
US4080516A (en) * 1975-10-06 1978-03-21 Hitachi, Ltd. Multi-frequency signal receiver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2291652A1 (en) * 1974-11-14 1976-06-11 Philips Nv DIGITAL SIGNAL PROCESSING DEVICE
US4080516A (en) * 1975-10-06 1978-03-21 Hitachi, Ltd. Multi-frequency signal receiver

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV688/72 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0300265A2 (en) * 1987-07-24 1989-01-25 Advanced Micro Devices, Inc. Digital tone detection method
EP0300265A3 (en) * 1987-07-24 1990-10-24 Advanced Micro Devices, Inc. Digital tone detection and generation

Also Published As

Publication number Publication date
FR2429468B1 (en) 1982-04-02

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