IT1004617B - Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta - Google Patents

Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta

Info

Publication number
IT1004617B
IT1004617B IT70090/73A IT7009073A IT1004617B IT 1004617 B IT1004617 B IT 1004617B IT 70090/73 A IT70090/73 A IT 70090/73A IT 7009073 A IT7009073 A IT 7009073A IT 1004617 B IT1004617 B IT 1004617B
Authority
IT
Italy
Prior art keywords
signal receiver
switching units
electronic switching
telephone signal
centralized logic
Prior art date
Application number
IT70090/73A
Other languages
English (en)
Inventor
P Calcagno
E Garetti
Original Assignee
Oselt Centro Studi E Lab Telec
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 Oselt Centro Studi E Lab Telec filed Critical Oselt Centro Studi E Lab Telec
Priority to IT70090/73A priority Critical patent/IT1004617B/it
Priority to SE7413227A priority patent/SE394568B/xx
Priority to DE19742450099 priority patent/DE2450099C3/de
Priority to US05/517,017 priority patent/US3958086A/en
Application granted granted Critical
Publication of IT1004617B publication Critical patent/IT1004617B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Telephonic Communication Services (AREA)
  • Time-Division Multiplex Systems (AREA)
IT70090/73A 1973-10-22 1973-10-22 Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta IT1004617B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT70090/73A IT1004617B (it) 1973-10-22 1973-10-22 Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta
SE7413227A SE394568B (sv) 1973-10-22 1974-10-21 Anordning for mottagning och identifiering av samplade signaler i en elektronisk vexel med centraliserade logiska kretsar
DE19742450099 DE2450099C3 (de) 1973-10-22 1974-10-22 Verfahren und Schaltungsanordnung zur Erfassung und Identifizierung von Signalen In elektronischen Fernmelde-, insbesondere Fernsprechvermittlungsanlagen mit zentralisierten logischen Schaltungen
US05/517,017 US3958086A (en) 1973-10-22 1974-10-22 Telephone-signal receiver for switching exchanges having centralized logic circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT70090/73A IT1004617B (it) 1973-10-22 1973-10-22 Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta

Publications (1)

Publication Number Publication Date
IT1004617B true IT1004617B (it) 1976-07-20

Family

ID=11313420

Family Applications (1)

Application Number Title Priority Date Filing Date
IT70090/73A IT1004617B (it) 1973-10-22 1973-10-22 Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta

Country Status (3)

Country Link
US (1) US3958086A (it)
IT (1) IT1004617B (it)
SE (1) SE394568B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287155B (en) * 1994-02-23 1998-08-12 Motorola Inc Telecommunications device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710028A (en) * 1970-11-10 1973-01-09 Gte Automatic Electric Lab Inc Detector for digitally transmitted multifrequency tones as utilized for signaling in a pulse code modulated telephone system
NL7101468A (it) * 1971-02-04 1972-08-08
NL7110444A (it) * 1971-07-29 1973-01-31 Philips Nv
SE354764B (it) * 1972-05-18 1973-03-19 Ericsson Telefon Ab L M
US3870826A (en) * 1973-12-21 1975-03-11 Bell Telephone Labor Inc Tone control system for a time division switching system

Also Published As

Publication number Publication date
SE394568B (sv) 1977-06-27
US3958086A (en) 1976-05-18
SE7413227L (it) 1975-04-23
DE2450099B2 (de) 1976-04-08
DE2450099A1 (de) 1975-04-30

Similar Documents

Publication Publication Date Title
AU6529974A (en) A digital voice switch
CA1002637A (en) Automatic exclusion circuit for a key telephone set
IT943310B (it) Complesso di segnalazione per siste mi telefonici a tastiera
CA926527A (en) Line circuit for a key telephone system
GB1439107A (en) Telephone systems
CA992228A (en) Key telephone line circuit
IL46133A0 (en) D.c.signal receiving circuit arrangements
IT1004617B (it) Ricevitore di segnali telefonici per centrali di commutazione elettroniche a logica centralizza ta
SE397039B (sv) Kretskoppling innefattande en linjeavlenkningskrets
CA994485A (en) Off-premises station line circuit for a key telephone system
CA991765A (en) Pulse-correcting system for a telephone signaling system
ZA745028B (en) Circuit arrangement for a selective signal receiver particularly for use in telephone systems
CA929290A (en) Line circuit for a key telephone system
CA988636A (en) Line card circuit for a key telephone system
IL46131A0 (en) D.c.signal receiving circuits
ZA744731B (en) A mounting for circuit members in a telephone set
CA976674A (en) Telephone line voltage sensing circuit
AU470919B2 (en) Circuit arrangements for telephone charges indicators
CA994487A (en) Transistor switching circuit for use in a telephone system
CA997874A (en) Signal interrupter circuit for a key telephone system
IE37816B1 (en) Line circuit for a key telephone system
ZA731583B (en) Line circuit for a key telephone system
ZA743457B (en) Register for telephone switching systems
ZA742577B (en) Telephone system with ringing path detector
CA998485A (en) Line circuit for key telephone systems