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PT85453A - Circuito para a separacao de componentes de corrente continua e de corrente alternada de uma mistura de sinais - Google Patents

Circuito para a separacao de componentes de corrente continua e de corrente alternada de uma mistura de sinais

Info

Publication number
PT85453A
PT85453A PT85453A PT8545387A PT85453A PT 85453 A PT85453 A PT 85453A PT 85453 A PT85453 A PT 85453A PT 8545387 A PT8545387 A PT 8545387A PT 85453 A PT85453 A PT 85453A
Authority
PT
Portugal
Prior art keywords
separation
circuit
current
signal mix
alternate
Prior art date
Application number
PT85453A
Other languages
English (en)
Other versions
PT85453B (pt
Inventor
Stader Harald
Rudolf Hans Werner
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of PT85453A publication Critical patent/PT85453A/pt
Publication of PT85453B publication Critical patent/PT85453B/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits
    • 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
    • H04M19/026—Arrangements for interrupting the ringing current

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Measurement Of Current Or Voltage (AREA)
PT85453A 1986-07-31 1987-07-30 Circuito para a separacao de componentes de corrente continua e de corrente alternada de uma mistura de sinais PT85453B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3625872 1986-07-31

Publications (2)

Publication Number Publication Date
PT85453A true PT85453A (pt) 1988-07-29
PT85453B PT85453B (pt) 1993-12-31

Family

ID=6306367

Family Applications (1)

Application Number Title Priority Date Filing Date
PT85453A PT85453B (pt) 1986-07-31 1987-07-30 Circuito para a separacao de componentes de corrente continua e de corrente alternada de uma mistura de sinais

Country Status (8)

Country Link
EP (1) EP0256291B1 (pt)
AR (1) AR241446A1 (pt)
AT (1) ATE84179T1 (pt)
BR (1) BR8703923A (pt)
DE (1) DE3783287D1 (pt)
DK (1) DK368487A (pt)
FI (1) FI873321A (pt)
PT (1) PT85453B (pt)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3564441A (en) * 1968-03-04 1971-02-16 United Control Corp Low-pass active filter
US3772477A (en) * 1972-07-17 1973-11-13 Bell Telephone Labor Inc Telephone dial pulse detection circuit
EP0208875B1 (de) * 1985-06-27 1989-08-09 Siemens Aktiengesellschaft Schaltungsanordnung zur Trennung von Gleichstrom- und Wechselstromsignalanteilen eines Signalgemischs

Also Published As

Publication number Publication date
DE3783287D1 (de) 1993-02-11
FI873321A0 (fi) 1987-07-30
ATE84179T1 (de) 1993-01-15
DK368487D0 (da) 1987-07-15
PT85453B (pt) 1993-12-31
BR8703923A (pt) 1988-04-05
EP0256291A3 (en) 1990-03-14
EP0256291B1 (de) 1992-12-30
AR241446A1 (es) 1992-07-31
DK368487A (da) 1988-02-01
FI873321A (fi) 1988-02-01
EP0256291A2 (de) 1988-02-24

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19930621

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19941231