BR8504603A - CIRCUIT ARRANGEMENT FOR POLARITY INVERSION, WITHOUT DISTURBANCE, IN THE SUPPLY VOLTAGE OF A SUBSCRIBERS CONNECTION CIRCUIT IN TELEPHONE INSTALLATIONS - Google Patents

CIRCUIT ARRANGEMENT FOR POLARITY INVERSION, WITHOUT DISTURBANCE, IN THE SUPPLY VOLTAGE OF A SUBSCRIBERS CONNECTION CIRCUIT IN TELEPHONE INSTALLATIONS

Info

Publication number
BR8504603A
BR8504603A BR8504603A BR8504603A BR8504603A BR 8504603 A BR8504603 A BR 8504603A BR 8504603 A BR8504603 A BR 8504603A BR 8504603 A BR8504603 A BR 8504603A BR 8504603 A BR8504603 A BR 8504603A
Authority
BR
Brazil
Prior art keywords
disturbance
supply voltage
polarity inversion
circuit
circuit arrangement
Prior art date
Application number
BR8504603A
Other languages
Portuguese (pt)
Inventor
Werner Nagler
Walter Ossler
Oswald Meyer
Hans-Werner Rudolf
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 BR8504603A publication Critical patent/BR8504603A/en

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
    • H04Q1/38—Signalling arrangements; Manipulation of signalling currents using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
BR8504603A 1984-09-21 1985-09-20 CIRCUIT ARRANGEMENT FOR POLARITY INVERSION, WITHOUT DISTURBANCE, IN THE SUPPLY VOLTAGE OF A SUBSCRIBERS CONNECTION CIRCUIT IN TELEPHONE INSTALLATIONS BR8504603A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3434728 1984-09-21
DE19843436284 DE3436284A1 (en) 1984-09-21 1984-10-03 Circuit arrangement for interference-free polarity reversal of the feed voltage of a subscriber connection circuit in telephone systems

Publications (1)

Publication Number Publication Date
BR8504603A true BR8504603A (en) 1986-07-15

Family

ID=25824954

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8504603A BR8504603A (en) 1984-09-21 1985-09-20 CIRCUIT ARRANGEMENT FOR POLARITY INVERSION, WITHOUT DISTURBANCE, IN THE SUPPLY VOLTAGE OF A SUBSCRIBERS CONNECTION CIRCUIT IN TELEPHONE INSTALLATIONS

Country Status (2)

Country Link
BR (1) BR8504603A (en)
DE (1) DE3436284A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3804216A1 (en) * 1988-02-11 1989-08-24 Telefonbau & Normalzeit Gmbh CIRCUIT ARRANGEMENT FOR EXTERNAL LINE TRANSMISSION OF COMMUNICATION SWITCHING SYSTEMS, ESPECIALLY TELEPHONE EXTENSION SYSTEMS
DE4027323A1 (en) * 1990-08-29 1992-03-05 Siemens Ag Call and feed voltage supply for PBX telephone appts. - feeds DC potential in rest and call states to subscriber line pair via different paths, under microprocessor control
DE19636954B4 (en) * 1996-09-11 2005-08-18 Infineon Technologies Ag subscriber circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207677C2 (en) * 1982-03-03 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for handling additional functions in connection with connection circuits forming basic assemblies

Also Published As

Publication number Publication date
DE3436284A1 (en) 1986-04-03
DE3436284C2 (en) 1991-12-12

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Legal Events

Date Code Title Description
B21A Extinguishment of a patent or of a certificate of addition of invention: extinguishment - article 78, item i of industrial property law

Free format text: PATENTE EXTINTA EM 20/09/2000