ES2007809A6 - A circuit for telephone deposit of subscriber. (Machine-translation by Google Translate, not legally binding) - Google Patents

A circuit for telephone deposit of subscriber. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES2007809A6
ES2007809A6 ES8801086A ES8801086A ES2007809A6 ES 2007809 A6 ES2007809 A6 ES 2007809A6 ES 8801086 A ES8801086 A ES 8801086A ES 8801086 A ES8801086 A ES 8801086A ES 2007809 A6 ES2007809 A6 ES 2007809A6
Authority
ES
Spain
Prior art keywords
line
circuit
subscriber
transistor
switch
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.)
Expired
Application number
ES8801086A
Other languages
Spanish (es)
Inventor
P L Calligaro
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.)
Alcatel Lucent NV
Original Assignee
Alcatel NV
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 PCT/AU1988/000046 external-priority patent/WO1988008234A1/en
Application filed by Alcatel NV filed Critical Alcatel NV
Publication of ES2007809A6 publication Critical patent/ES2007809A6/en
Expired legal-status Critical Current

Links

Landscapes

  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

Circuit apparatus for telephone subscriber (fig. 1) including a capacitor (cl) providing a current source marker to integrated circuit circuits (1). Initially with downloaded condensador, when connected line terminals (l1 and l2) to a subscriber line, current flows by the terminal line (l1) and a bleeder resistor (r1) to cause a first transistor (nt1) drives, which makes turn lead to the switch-line (2) circuits. The capacitor is charged through the line switch powered by midstream-line and when the voltage level across capacitor reaches the tension minimal operating integrated circuit marker, a circuit comprising a second transistor (tr2 ) causes the first transistor stop driving what makes your time drive line switch. Integrated circuit marker now has enough power available to actuarel line switch every time actuate hookswitch (hs). (Machine-translation by Google Translate, not legally binding)
ES8801086A 1987-04-09 1988-04-08 A circuit for telephone deposit of subscriber. (Machine-translation by Google Translate, not legally binding) Expired ES2007809A6 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU133987 1987-04-09
PCT/AU1988/000046 WO1988008234A1 (en) 1987-04-09 1988-02-22 Telephone subset circuit arrangement

Publications (1)

Publication Number Publication Date
ES2007809A6 true ES2007809A6 (en) 1989-07-01

Family

ID=25609094

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8801086A Expired ES2007809A6 (en) 1987-04-09 1988-04-08 A circuit for telephone deposit of subscriber. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES2007809A6 (en)

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2008-04-08

FD1A Patent lapsed

Effective date: 20000301