IT1211024B - Circuito conferenza per centrali telefoniche di commutazione di tipo numerico. - Google Patents

Circuito conferenza per centrali telefoniche di commutazione di tipo numerico.

Info

Publication number
IT1211024B
IT1211024B IT8121227A IT2122781A IT1211024B IT 1211024 B IT1211024 B IT 1211024B IT 8121227 A IT8121227 A IT 8121227A IT 2122781 A IT2122781 A IT 2122781A IT 1211024 B IT1211024 B IT 1211024B
Authority
IT
Italy
Prior art keywords
switching units
telephone switching
numeric type
type telephone
conference circuit
Prior art date
Application number
IT8121227A
Other languages
English (en)
Italian (it)
Other versions
IT8121227A0 (it
Inventor
Vincenzo Falzone
Marcello Tommasi
Original Assignee
Italtel Spa
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 Italtel Spa filed Critical Italtel Spa
Publication of IT8121227A0 publication Critical patent/IT8121227A0/it
Priority to IT8121227A priority Critical patent/IT1211024B/it
Priority to GR67823A priority patent/GR76042B/el
Priority to YU00803/82A priority patent/YU80382A/xx
Priority to ES511385A priority patent/ES8303858A1/es
Priority to PT74762A priority patent/PT74762B/pt
Priority to BR8202162A priority patent/BR8202162A/pt
Priority to FR8206512A priority patent/FR2504333A1/fr
Priority to GB8211154A priority patent/GB2100094A/en
Priority to DE19823214099 priority patent/DE3214099A1/de
Application granted granted Critical
Publication of IT1211024B publication Critical patent/IT1211024B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/568—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants
    • H04M3/569—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities audio processing specific to telephonic conferencing, e.g. spatial distribution, mixing of participants using the instant speaker's algorithm

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
IT8121227A 1981-04-16 1981-04-16 Circuito conferenza per centrali telefoniche di commutazione di tipo numerico. IT1211024B (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT8121227A IT1211024B (it) 1981-04-16 1981-04-16 Circuito conferenza per centrali telefoniche di commutazione di tipo numerico.
GR67823A GR76042B (fr) 1981-04-16 1982-04-06
YU00803/82A YU80382A (en) 1981-04-16 1982-04-13 Circuit for a conference connection for telephone commutation exchanges of numerical type
ES511385A ES8303858A1 (es) 1981-04-16 1982-04-13 "perfeccionamientos en los circuitos conferencia para centrales telefonicas de conmutacion".
PT74762A PT74762B (en) 1981-04-16 1982-04-15 Conference circuit for switching telephone exchanges of numerical type
BR8202162A BR8202162A (pt) 1981-04-16 1982-04-15 Circuito de conferencia para centrais telefonicas de comutacao do tipo numerico
FR8206512A FR2504333A1 (fr) 1981-04-16 1982-04-15
GB8211154A GB2100094A (en) 1981-04-16 1982-04-16 TDM conference circuit
DE19823214099 DE3214099A1 (de) 1981-04-16 1982-04-16 Konferenzschaltung fuer eine fernsprech-vermittlungszentrale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8121227A IT1211024B (it) 1981-04-16 1981-04-16 Circuito conferenza per centrali telefoniche di commutazione di tipo numerico.

Publications (2)

Publication Number Publication Date
IT8121227A0 IT8121227A0 (it) 1981-04-16
IT1211024B true IT1211024B (it) 1989-09-29

Family

ID=11178683

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8121227A IT1211024B (it) 1981-04-16 1981-04-16 Circuito conferenza per centrali telefoniche di commutazione di tipo numerico.

Country Status (9)

Country Link
BR (1) BR8202162A (fr)
DE (1) DE3214099A1 (fr)
ES (1) ES8303858A1 (fr)
FR (1) FR2504333A1 (fr)
GB (1) GB2100094A (fr)
GR (1) GR76042B (fr)
IT (1) IT1211024B (fr)
PT (1) PT74762B (fr)
YU (1) YU80382A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183965A (en) * 1985-12-10 1987-06-10 Weng Pu San Circuit structure of teleconference
JPH03166894A (ja) * 1989-11-27 1991-07-18 Matsushita Electric Ind Co Ltd ボタン電話装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190744A (en) * 1978-06-05 1980-02-26 Siemens Aktiengesellschaft Circuit arrangement and process for producing conference connections between three conference parties in a PCM time multiplex switching system
US4224688A (en) * 1978-10-30 1980-09-23 Northern Telecom Limited Digital conference circuit
DE3005739C2 (de) * 1980-02-15 1988-11-10 Nixdorf Computer Ag, 4790 Paderborn Verfahren zur Steuerung der Übertragung von PCM-Signalen zwischen Anschlußstellen eines PCM-Zeitmultiplex-Fernmeldenetzes in einem Konferenzbetrieb und Schaltungsanordnung zur Druchführung des Verfahrens

Also Published As

Publication number Publication date
IT8121227A0 (it) 1981-04-16
PT74762A (en) 1982-05-01
PT74762B (en) 1983-11-30
GB2100094A (en) 1982-12-15
DE3214099A1 (de) 1982-11-18
FR2504333A1 (fr) 1982-10-22
GR76042B (fr) 1984-08-03
ES511385A0 (es) 1983-03-01
BR8202162A (pt) 1983-03-29
ES8303858A1 (es) 1983-03-01
YU80382A (en) 1985-03-20

Similar Documents

Publication Publication Date Title
NO157039C (no) Abonnentlinjekrets.
IT7820545A0 (it) Circuito per linee di abbonato e connessioni per centrali.
IT8221970A0 (it) Circuito di interfaccia di canali.
IT8221969A0 (it) Circuito di interfaccia di canali.
MX147516A (es) Mejoras a circuito de conferencia para un sistema conmutador de telecomunicaciones digital
IT8321325A0 (it) Circuito di completamento di chiamate.
IT8221323A0 (it) Circuito di respirazione.
IT8323550A0 (it) Circuito di interfaccia.
IT8322927A0 (it) Complesso circuitale di somma, di tipo digitale.
IT8221006A0 (it) Apparecchiatura di controllo di commutazione di protezione di linee.
IT8522983A0 (it) Circuito di stato di linea telefonica.
IT8123750A0 (it) Dispositivo elettronico di commutazione, di tipo analogico.
JPS57148457A (en) Subscriber circuit
IT8221922A0 (it) Circuito di deaccentuazione video.
BE896365A (fr) Circuit de commutation.
IT8023531A0 (it) Multiterminali con somma circuito di conferenza multiquadri.
NL192173B (nl) PCM-schakelstelsel.
IT8222829A0 (it) Apparecchio riproduttore, particolarmente del tipo per ufficio.
IT1211024B (it) Circuito conferenza per centrali telefoniche di commutazione di tipo numerico.
FR2523387B1 (fr) Circuit de conference telephonique
IT8122412A0 (it) Apparecchiatura per circuito di elaborazione audio di linee di abbonato.
ATE24260T1 (de) Teilnehmeranschlussschaltung.
GB2128448B (en) Telephone exchange conference circuit
IT8467922A1 (it) Congiuntore di abbonato telefonico.
IT8320418A0 (it) Circuito per la produzione di impulsi di chiamata telefonica.