FR1414686A - Telephone ring tone - Google Patents

Telephone ring tone

Info

Publication number
FR1414686A
FR1414686A FR996598A FR996598A FR1414686A FR 1414686 A FR1414686 A FR 1414686A FR 996598 A FR996598 A FR 996598A FR 996598 A FR996598 A FR 996598A FR 1414686 A FR1414686 A FR 1414686A
Authority
FR
France
Prior art keywords
ring tone
telephone ring
telephone
tone
ring
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.)
Expired
Application number
FR996598A
Other languages
French (fr)
Inventor
Anthony Crisp Beadle
Ralph William Parrish
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB46851/63A external-priority patent/GB986310A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR996598A priority Critical patent/FR1414686A/en
Application granted granted Critical
Publication of FR1414686A publication Critical patent/FR1414686A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR996598A 1963-11-27 1964-11-27 Telephone ring tone Expired FR1414686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR996598A FR1414686A (en) 1963-11-27 1964-11-27 Telephone ring tone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB46851/63A GB986310A (en) 1963-11-27 1963-11-27 Telephone tone ringer
FR996598A FR1414686A (en) 1963-11-27 1964-11-27 Telephone ring tone

Publications (1)

Publication Number Publication Date
FR1414686A true FR1414686A (en) 1965-10-15

Family

ID=26211414

Family Applications (1)

Application Number Title Priority Date Filing Date
FR996598A Expired FR1414686A (en) 1963-11-27 1964-11-27 Telephone ring tone

Country Status (1)

Country Link
FR (1) FR1414686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469840A1 (en) * 1979-11-12 1981-05-22 Astier Michel Subscriber phone electronic device - counts incoming call signals and, after preset count, increases ringing tone intensity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469840A1 (en) * 1979-11-12 1981-05-22 Astier Michel Subscriber phone electronic device - counts incoming call signals and, after preset count, increases ringing tone intensity

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