FR2094307A6 - - Google Patents

Info

Publication number
FR2094307A6
FR2094307A6 FR7022230A FR7022230A FR2094307A6 FR 2094307 A6 FR2094307 A6 FR 2094307A6 FR 7022230 A FR7022230 A FR 7022230A FR 7022230 A FR7022230 A FR 7022230A FR 2094307 A6 FR2094307 A6 FR 2094307A6
Authority
FR
France
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
Application number
FR7022230A
Other languages
French (fr)
Inventor
J-B Jacob
P Lavanant
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.)
LANNIONNAIS ELECTRONIQUE
Alcatel CIT SA
Nokia Inc
Original Assignee
LANNIONNAIS ELECTRONIQUE
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia Inc
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 LANNIONNAIS ELECTRONIQUE, Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical LANNIONNAIS ELECTRONIQUE
Priority to FR7022230A priority Critical patent/FR2094307A6/fr
Priority to NL7107106A priority patent/NL7107106A/xx
Priority to SE686471A priority patent/SE373711B/xx
Priority to DE19712126717 priority patent/DE2126717A1/de
Priority to GB1814171A priority patent/GB1338633A/en
Application granted granted Critical
Publication of FR2094307A6 publication Critical patent/FR2094307A6/fr
Expired 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L5/00—Automatic control of voltage, current, or power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
FR7022230A 1970-05-28 1970-06-15 Expired FR2094307A6 (cs)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7022230A FR2094307A6 (cs) 1970-06-15 1970-06-15
NL7107106A NL7107106A (cs) 1970-05-28 1971-05-25
SE686471A SE373711B (sv) 1970-05-28 1971-05-27 Digital frekvensgenerator
DE19712126717 DE2126717A1 (de) 1970-05-28 1971-05-28 Digitaler Frequenzgenerator
GB1814171A GB1338633A (en) 1970-05-28 1971-05-28 Digital frequency generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7022230A FR2094307A6 (cs) 1970-06-15 1970-06-15

Publications (1)

Publication Number Publication Date
FR2094307A6 true FR2094307A6 (cs) 1972-02-04

Family

ID=9057294

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7022230A Expired FR2094307A6 (cs) 1970-05-28 1970-06-15

Country Status (1)

Country Link
FR (1) FR2094307A6 (cs)

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Legal Events

Date Code Title Description
TP Transmission of property