IT1270030B - Circuit device for remote activation of users - Google Patents

Circuit device for remote activation of users

Info

Publication number
IT1270030B
IT1270030B ITMI940437A ITMI940437A IT1270030B IT 1270030 B IT1270030 B IT 1270030B IT MI940437 A ITMI940437 A IT MI940437A IT MI940437 A ITMI940437 A IT MI940437A IT 1270030 B IT1270030 B IT 1270030B
Authority
IT
Italy
Prior art keywords
user
circuit device
users
remote activation
telephone
Prior art date
Application number
ITMI940437A
Other languages
Italian (it)
Inventor
Enrico Macchi
Adelio Mangiarotti
Original Assignee
Enrico Macchi
Adelio Mangiarotti
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 Enrico Macchi, Adelio Mangiarotti filed Critical Enrico Macchi
Priority to ITMI940437A priority Critical patent/IT1270030B/en
Publication of ITMI940437A0 publication Critical patent/ITMI940437A0/en
Publication of ITMI940437A1 publication Critical patent/ITMI940437A1/en
Application granted granted Critical
Publication of IT1270030B publication Critical patent/IT1270030B/en

Links

Landscapes

  • Selective Calling Equipment (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

This relates to a circuit device for remote activation of users, comprising circuitry which is interconnected on one hand with the telephone user itself and on the other hand with the user to be activated or inactivated, the said circuit device having an optical isolator, together with a DIP switch encoding circuit with which the encoded identification of the user can be programmed and a unit for converting telephone signals, suitably scanned by a telephone pulse counter, in such a way that the user is activated or inactivated by means of a relay connected before the user, following a simple sequence of previously encoded rings. <IMAGE>
ITMI940437A 1994-03-10 1994-03-10 Circuit device for remote activation of users IT1270030B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITMI940437A IT1270030B (en) 1994-03-10 1994-03-10 Circuit device for remote activation of users

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI940437A IT1270030B (en) 1994-03-10 1994-03-10 Circuit device for remote activation of users

Publications (3)

Publication Number Publication Date
ITMI940437A0 ITMI940437A0 (en) 1994-03-10
ITMI940437A1 ITMI940437A1 (en) 1995-09-10
IT1270030B true IT1270030B (en) 1997-04-28

Family

ID=11368141

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI940437A IT1270030B (en) 1994-03-10 1994-03-10 Circuit device for remote activation of users

Country Status (1)

Country Link
IT (1) IT1270030B (en)

Also Published As

Publication number Publication date
ITMI940437A1 (en) 1995-09-10
ITMI940437A0 (en) 1994-03-10

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971028