CA2101842A1 - Generateur de signal de sonnerie pour telephone - Google Patents

Generateur de signal de sonnerie pour telephone

Info

Publication number
CA2101842A1
CA2101842A1 CA 2101842 CA2101842A CA2101842A1 CA 2101842 A1 CA2101842 A1 CA 2101842A1 CA 2101842 CA2101842 CA 2101842 CA 2101842 A CA2101842 A CA 2101842A CA 2101842 A1 CA2101842 A1 CA 2101842A1
Authority
CA
Canada
Prior art keywords
coupled
circuit
input
switching elements
current
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.)
Abandoned
Application number
CA 2101842
Other languages
English (en)
Inventor
Richard W. Faith
James W. Lester
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.)
Harris Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2101842A1 publication Critical patent/CA2101842A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04M19/023—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone by reversing the polarity of the current at the exchange
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/297—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal for conversion of frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
CA 2101842 1991-12-02 1992-12-02 Generateur de signal de sonnerie pour telephone Abandoned CA2101842A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US80168491A 1991-12-02 1991-12-02
US801,684 1991-12-02

Publications (1)

Publication Number Publication Date
CA2101842A1 true CA2101842A1 (fr) 1993-06-03

Family

ID=25181791

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2101842 Abandoned CA2101842A1 (fr) 1991-12-02 1992-12-02 Generateur de signal de sonnerie pour telephone

Country Status (3)

Country Link
EP (1) EP0569582A4 (fr)
CA (1) CA2101842A1 (fr)
WO (1) WO1993011624A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170264141A1 (en) * 2016-03-09 2017-09-14 Qualcomm Incorporated Method and apparatus for adapting wireless power transfer between wireless power protocols

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239935A (en) * 1979-04-27 1980-12-16 Bell Telephone Laboratories, Incorporated Ringing generator
IT1128374B (it) * 1980-02-19 1986-05-28 Cselt Centro Studi Lab Telecom Circuito telefonico per la generazione del ritmo di suoneria ed il riconoscimento dello sgancio
US4436960A (en) * 1982-01-11 1984-03-13 Bell Telephone Laboratories, Incorporated Telephone ringing signal generator
US4706183A (en) * 1982-07-29 1987-11-10 Eaton Corporation Bridge-type frequency multiplier
US4500844A (en) * 1983-05-20 1985-02-19 At&T Bell Laboratories Ringing signal generator employing delta-modulation power amplification techniques
US4631361A (en) * 1984-06-28 1986-12-23 Itt Corporation Programmable ring generator
US4894766A (en) * 1988-11-25 1990-01-16 Hazeltine Corporation Power supply frequency converter
US4866587A (en) * 1988-12-22 1989-09-12 American Telephone And Telegraph Company At&T Bell Laboratories Electronic ringing signal generator

Also Published As

Publication number Publication date
EP0569582A4 (en) 1995-10-11
EP0569582A1 (fr) 1993-11-18
WO1993011624A1 (fr) 1993-06-10

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Legal Events

Date Code Title Description
FZDE Dead