SE7906710L - Anordning for behandling av telesignaler - Google Patents

Anordning for behandling av telesignaler

Info

Publication number
SE7906710L
SE7906710L SE7906710A SE7906710A SE7906710L SE 7906710 L SE7906710 L SE 7906710L SE 7906710 A SE7906710 A SE 7906710A SE 7906710 A SE7906710 A SE 7906710A SE 7906710 L SE7906710 L SE 7906710L
Authority
SE
Sweden
Prior art keywords
circuits
signal
analog
output terminal
extracting
Prior art date
Application number
SE7906710A
Other languages
Unknown language ( )
English (en)
Inventor
H Shirasu
Original Assignee
Hitachi Ltd
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 JP10947178U external-priority patent/JPS5526948U/ja
Priority claimed from JP2413879A external-priority patent/JPS5919675B2/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of SE7906710L publication Critical patent/SE7906710L/sv

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
SE7906710A 1978-08-11 1979-08-10 Anordning for behandling av telesignaler SE7906710L (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10947178U JPS5526948U (sv) 1978-08-11 1978-08-11
JP2413879A JPS5919675B2 (ja) 1979-03-02 1979-03-02 加入者回路の信号処理装置

Publications (1)

Publication Number Publication Date
SE7906710L true SE7906710L (sv) 1980-02-12

Family

ID=26361621

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7906710A SE7906710L (sv) 1978-08-11 1979-08-10 Anordning for behandling av telesignaler

Country Status (6)

Country Link
US (1) US4276447A (sv)
CA (1) CA1117231A (sv)
DE (1) DE2932788A1 (sv)
GB (1) GB2032730B (sv)
NL (1) NL7906173A (sv)
SE (1) SE7906710L (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU193325B (en) * 1985-03-29 1987-09-28 Bhg Hiradastech Vallalat Scanning and preprocessing circuit for centrally controlled apparatuses, preferably telephone exchanges
CA1233924A (en) * 1985-06-12 1988-03-08 John A. Barsellotti Telephone line status circuit
EP0231466B1 (de) * 1985-12-20 1990-10-24 Siemens Aktiengesellschaft Schaltungsanordnung zur Schleifenschlussindikation während der Rufphase
NL9301094A (nl) * 1993-06-23 1995-01-16 Nederland Ptt Inrichting voor het meten van analoge telefoniesignalen.
DE60019574T2 (de) * 1999-04-22 2006-03-02 Silicon Laboratories, Inc., Austin Teilnehmerleitungsschnittstellenschaltung
US7180999B1 (en) 1999-04-22 2007-02-20 Silicon Laboratories, Inc. Subscriber line interface circuitry
US7158633B1 (en) 1999-11-16 2007-01-02 Silicon Laboratories, Inc. Method and apparatus for monitoring subscriber loop interface circuitry power dissipation
US7486787B2 (en) 2000-06-30 2009-02-03 Silicon Laboratories, Inc. Subscriber line interface circuitry with common base audio isolation stage
HUP0800658A2 (en) * 2008-11-10 2010-06-28 Pal Tamas Csefko Method and apparatus for reducing magnetid core material quantity in electrical machnies by avoiding magnetic saturation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757053A (en) * 1971-09-10 1973-09-04 Delta Communications Corp Time multiplexed sampled data telephone system
US3936611A (en) * 1974-09-04 1976-02-03 Gte Sylvania Incorporated Time compression scanner

Also Published As

Publication number Publication date
NL7906173A (nl) 1980-02-13
DE2932788A1 (de) 1980-03-13
US4276447A (en) 1981-06-30
GB2032730B (en) 1982-07-21
CA1117231A (en) 1982-01-26
GB2032730A (en) 1980-05-08

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