IT1064278B - CONFERENCE CIRCUIT FOR SWITCHING NETWORK USING IMPULSE CODE MODULATION - Google Patents

CONFERENCE CIRCUIT FOR SWITCHING NETWORK USING IMPULSE CODE MODULATION

Info

Publication number
IT1064278B
IT1064278B IT2940176A IT2940176A IT1064278B IT 1064278 B IT1064278 B IT 1064278B IT 2940176 A IT2940176 A IT 2940176A IT 2940176 A IT2940176 A IT 2940176A IT 1064278 B IT1064278 B IT 1064278B
Authority
IT
Italy
Prior art keywords
switching network
code modulation
conference circuit
impulse code
impulse
Prior art date
Application number
IT2940176A
Other languages
Italian (it)
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT1064278B publication Critical patent/IT1064278B/en

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
    • H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
IT2940176A 1975-11-20 1976-11-17 CONFERENCE CIRCUIT FOR SWITCHING NETWORK USING IMPULSE CODE MODULATION IT1064278B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7535467A FR2332663A1 (en) 1975-11-20 1975-11-20 CONFERENCE CIRCUIT FOR MIC SWITCHING NETWORK

Publications (1)

Publication Number Publication Date
IT1064278B true IT1064278B (en) 1985-02-18

Family

ID=9162663

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2940176A IT1064278B (en) 1975-11-20 1976-11-17 CONFERENCE CIRCUIT FOR SWITCHING NETWORK USING IMPULSE CODE MODULATION

Country Status (6)

Country Link
BE (1) BE848460A (en)
BR (1) BR7607674A (en)
ES (1) ES453481A1 (en)
FR (1) FR2332663A1 (en)
GB (1) GB1521209A (en)
IT (1) IT1064278B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112258A (en) * 1977-10-12 1978-09-05 Bell Telephone Laboratories, Incorporated Communication system using intelligent network processor
USRE31651E (en) * 1977-10-12 1984-08-21 Bell Telephone Laboratories, Incorporated Communication system using intelligent network processor
FR2472318B1 (en) * 1979-12-18 1986-07-18 Telecommunications Sa TELEPHONE CONFERENCE SYSTEM
CA1151327A (en) * 1981-06-08 1983-08-02 Ernst A. Munter Digital conference circuit and method
US4408323A (en) 1981-06-29 1983-10-04 Bell Telephone Laboratories, Incorporated Processor facilities for integrated packet and voice switching
DE3148886C1 (en) * 1981-12-10 1983-08-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart Method and circuit arrangement for establishing a conference connection
NL8201058A (en) * 1982-03-15 1983-10-03 Philips Nv METHOD AND APPARATUS FOR ESTABLISHING A CONFERENCE CONNECTION IN A TDM COMMUNICATION SYSTEM
GB2128448B (en) * 1982-10-08 1985-11-13 Standard Telephones Cables Ltd Telephone exchange conference circuit
GB2134751B (en) * 1983-01-18 1986-07-30 Plessey Co Plc Conference bridge

Also Published As

Publication number Publication date
ES453481A1 (en) 1977-11-16
BR7607674A (en) 1977-10-04
FR2332663B1 (en) 1979-07-27
GB1521209A (en) 1978-08-16
BE848460A (en) 1977-05-18
FR2332663A1 (en) 1977-06-17

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