FR2279282A1 - Generateur de frequences vocales et clavier de numerotation comportant un tel generateur - Google Patents

Generateur de frequences vocales et clavier de numerotation comportant un tel generateur

Info

Publication number
FR2279282A1
FR2279282A1 FR7425196A FR7425196A FR2279282A1 FR 2279282 A1 FR2279282 A1 FR 2279282A1 FR 7425196 A FR7425196 A FR 7425196A FR 7425196 A FR7425196 A FR 7425196A FR 2279282 A1 FR2279282 A1 FR 2279282A1
Authority
FR
France
Prior art keywords
logic
time base
common time
filter
generator
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.)
Withdrawn
Application number
FR7425196A
Other languages
English (en)
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.)
Alcatel Lucent Enterprise SA
Original Assignee
Telic Alcatel SA
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 Telic Alcatel SA filed Critical Telic Alcatel SA
Priority to FR7425196A priority Critical patent/FR2279282A1/fr
Publication of FR2279282A1 publication Critical patent/FR2279282A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FR7425196A 1974-07-19 1974-07-19 Generateur de frequences vocales et clavier de numerotation comportant un tel generateur Withdrawn FR2279282A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7425196A FR2279282A1 (fr) 1974-07-19 1974-07-19 Generateur de frequences vocales et clavier de numerotation comportant un tel generateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7425196A FR2279282A1 (fr) 1974-07-19 1974-07-19 Generateur de frequences vocales et clavier de numerotation comportant un tel generateur

Publications (1)

Publication Number Publication Date
FR2279282A1 true FR2279282A1 (fr) 1976-02-13

Family

ID=9141497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425196A Withdrawn FR2279282A1 (fr) 1974-07-19 1974-07-19 Generateur de frequences vocales et clavier de numerotation comportant un tel generateur

Country Status (1)

Country Link
FR (1) FR2279282A1 (fr)

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Legal Events

Date Code Title Description
ST Notification of lapse