CH494507A - Dispositivo per la trasmissione e ricezione di segnali di comando mediante inversione di polarità - Google Patents

Dispositivo per la trasmissione e ricezione di segnali di comando mediante inversione di polarità

Info

Publication number
CH494507A
CH494507A CH1413968A CH1413968A CH494507A CH 494507 A CH494507 A CH 494507A CH 1413968 A CH1413968 A CH 1413968A CH 1413968 A CH1413968 A CH 1413968A CH 494507 A CH494507 A CH 494507A
Authority
CH
Switzerland
Prior art keywords
ricezione
polarità
inversione
trasmissione
segnali
Prior art date
Application number
CH1413968A
Other languages
English (en)
Inventor
Dal Monte Giorgio Ing Dr
Pitidis Nicola Ing Dr
Original Assignee
Sits Soc It Telecom Siemens
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 Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Publication of CH494507A publication Critical patent/CH494507A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Manipulation Of Pulses (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Details Of Flowmeters (AREA)
CH1413968A 1967-09-27 1968-09-18 Dispositivo per la trasmissione e ricezione di segnali di comando mediante inversione di polarità CH494507A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2093567 1967-09-27

Publications (1)

Publication Number Publication Date
CH494507A true CH494507A (fr) 1970-07-31

Family

ID=11174291

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1413968A CH494507A (fr) 1967-09-27 1968-09-18 Dispositivo per la trasmissione e ricezione di segnali di comando mediante inversione di polarità

Country Status (8)

Country Link
US (1) US3581008A (fr)
AT (1) AT303134B (fr)
BE (1) BE721273A (fr)
CH (1) CH494507A (fr)
DE (1) DE1762895A1 (fr)
FR (1) FR1581362A (fr)
GB (1) GB1236215A (fr)
NL (1) NL6812919A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699274A (en) * 1971-07-22 1972-10-17 Perkins Res & Mfg Co Apparatus for identifying telephone cable pairs
US4184045A (en) * 1978-05-25 1980-01-15 Hansson Gert Ake G System and method for transmission of information
IT1179742B (it) * 1984-07-27 1987-09-16 Urmet Spa Apparecchio telefonico per uso pubblico con microprocessore di gestione integrale

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL18105C (fr) * 1924-02-29
US2332907A (en) * 1942-04-23 1943-10-26 Bell Telephone Labor Inc Signaling system
US3321578A (en) * 1963-09-19 1967-05-23 Northern Electric Co Polar grounded loop d.c. telegraph receiver circuit

Also Published As

Publication number Publication date
US3581008A (en) 1971-05-25
GB1236215A (en) 1971-06-23
BE721273A (fr) 1969-03-03
AT303134B (de) 1972-11-10
FR1581362A (fr) 1969-09-12
NL6812919A (fr) 1969-03-31
DE1762895A1 (de) 1970-10-29

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Legal Events

Date Code Title Description
PL Patent ceased