FI971888A - Drivsteg - Google Patents

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Info

Publication number
FI971888A
FI971888A FI971888A FI971888A FI971888A FI 971888 A FI971888 A FI 971888A FI 971888 A FI971888 A FI 971888A FI 971888 A FI971888 A FI 971888A FI 971888 A FI971888 A FI 971888A
Authority
FI
Finland
Prior art keywords
drive stage
stage
drive
Prior art date
Application number
FI971888A
Other languages
English (en)
Finnish (fi)
Other versions
FI971888A0 (sv
Inventor
Hans Oskar Eriksson
Carl-Henrik Malmgren
Henrik Helmer Hellberg
Elisabeth Maria Larsson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI971888A publication Critical patent/FI971888A/sv
Publication of FI971888A0 publication Critical patent/FI971888A0/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
FI971888A 1994-11-10 1997-05-02 Drivsteg FI971888A0 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403875A SE503688C2 (sv) 1994-11-10 1994-11-10 Drivsteg
PCT/SE1995/001322 WO1996015592A1 (en) 1994-11-10 1995-11-08 Driving stage

Publications (2)

Publication Number Publication Date
FI971888A true FI971888A (sv) 1997-05-02
FI971888A0 FI971888A0 (sv) 1997-05-02

Family

ID=20395927

Family Applications (1)

Application Number Title Priority Date Filing Date
FI971888A FI971888A0 (sv) 1994-11-10 1997-05-02 Drivsteg

Country Status (13)

Country Link
US (1) US5901221A (sv)
EP (1) EP0791245B1 (sv)
JP (1) JPH10513018A (sv)
KR (1) KR100390387B1 (sv)
CN (1) CN1089506C (sv)
AU (1) AU4680396A (sv)
CA (1) CA2204873A1 (sv)
DE (1) DE69526447T2 (sv)
ES (1) ES2176361T3 (sv)
FI (1) FI971888A0 (sv)
HK (1) HK1007069A1 (sv)
SE (1) SE503688C2 (sv)
WO (1) WO1996015592A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6738855B1 (en) 2000-01-14 2004-05-18 National Semiconductor Corporation Communication interface between a TTL microcontroller and a RS232 Device avoiding level translation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8103572A (nl) * 1981-07-29 1983-02-16 Philips Nv Drijverschakeling.
FR2577737B1 (fr) * 1985-02-15 1987-04-17 Thomson Csf Circuit d'interface de ligne d'abonne telephonique avec mode de veille a puissance reduite
IT1215254B (it) * 1985-03-20 1990-01-31 Ates Componenti Elettron Circuito, integrabile monoliticamente, per la misura di correnti longitudinali e trasversali in una linea ditrasmissione bifilare.
US4841175A (en) * 1987-01-23 1989-06-20 Siemens Aktiengesellschaft ECL-compatible input/output circuits in CMOS technology
NL9001966A (nl) * 1990-09-06 1992-04-01 Philips Nv Versterkerschakeling.
JPH0595231A (ja) * 1991-10-03 1993-04-16 Nec Corp 出力回路
EP0622943B1 (en) * 1993-04-30 2001-09-12 STMicroelectronics S.r.l. Power management circuit for a subscriber line interface circuit
SE501975C2 (sv) * 1993-11-09 1995-07-03 Ericsson Telefon Ab L M Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning
US5649009A (en) * 1994-11-14 1997-07-15 Harris Corporation Differential longitudinal amplifier for a subscriber line interface circuit

Also Published As

Publication number Publication date
SE503688C2 (sv) 1996-07-29
JPH10513018A (ja) 1998-12-08
AU4680396A (en) 1996-06-06
ES2176361T3 (es) 2002-12-01
CN1089506C (zh) 2002-08-21
SE9403875D0 (sv) 1994-11-10
DE69526447D1 (de) 2002-05-23
EP0791245B1 (en) 2002-04-17
EP0791245A1 (en) 1997-08-27
KR100390387B1 (ko) 2003-08-30
WO1996015592A1 (en) 1996-05-23
FI971888A0 (sv) 1997-05-02
CN1165597A (zh) 1997-11-19
SE9403875L (sv) 1996-05-11
HK1007069A1 (en) 1999-04-01
US5901221A (en) 1999-05-04
DE69526447T2 (de) 2002-09-19
CA2204873A1 (en) 1996-05-23

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