ES8202226A1 - Controlled opening circuit of telephone line (Machine-translation by Google Translate, not legally binding) - Google Patents

Controlled opening circuit of telephone line (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES8202226A1
ES8202226A1 ES498773A ES498773A ES8202226A1 ES 8202226 A1 ES8202226 A1 ES 8202226A1 ES 498773 A ES498773 A ES 498773A ES 498773 A ES498773 A ES 498773A ES 8202226 A1 ES8202226 A1 ES 8202226A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
telephone line
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
ES498773A
Other languages
Spanish (es)
Other versions
ES498773A0 (en
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Priority to ES498773A priority Critical patent/ES8202226A1/en
Publication of ES498773A0 publication Critical patent/ES498773A0/en
Publication of ES8202226A1 publication Critical patent/ES8202226A1/en
Expired legal-status Critical Current

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  • Devices For Supply Of Signal Current (AREA)

Abstract

Electronic circuit, applicable to telephone devices of subscriber, that generates a consistent impulse in a line loop opening. The terminals (1, 2) of the electronic circuit are connected in series with those of the line of the telephone appliance, so that the current continues, conveniently polarized by a diode bridge (d1, d2, d3, d4), circle initially by the couple of transistors (t2, t3) that in a state of saturation drive all the current of such line. If in this situation the contact closure (int) is produced, both transistors (t2, t3) are taken to the court and do not drive the current. When the contact (int) is opened again, the impulse generated by the circu begins (Machine-translation by Google Translate, not legally binding)
ES498773A 1981-01-23 1981-01-23 Controlled opening circuit of telephone line (Machine-translation by Google Translate, not legally binding) Expired ES8202226A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES498773A ES8202226A1 (en) 1981-01-23 1981-01-23 Controlled opening circuit of telephone line (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES498773A ES8202226A1 (en) 1981-01-23 1981-01-23 Controlled opening circuit of telephone line (Machine-translation by Google Translate, not legally binding)

Publications (2)

Publication Number Publication Date
ES498773A0 ES498773A0 (en) 1982-01-01
ES8202226A1 true ES8202226A1 (en) 1982-01-01

Family

ID=8481744

Family Applications (1)

Application Number Title Priority Date Filing Date
ES498773A Expired ES8202226A1 (en) 1981-01-23 1981-01-23 Controlled opening circuit of telephone line (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES8202226A1 (en)

Also Published As

Publication number Publication date
ES498773A0 (en) 1982-01-01

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