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IT1020713B - NUMERICAL DEVICE FOR THE CONTEMPORARY CONNECTION OF THREE OR MORE TELEPHONE CHANNELS BETWEEN THEM - Google Patents

NUMERICAL DEVICE FOR THE CONTEMPORARY CONNECTION OF THREE OR MORE TELEPHONE CHANNELS BETWEEN THEM

Info

Publication number
IT1020713B
IT1020713B IT6967974A IT6967974A IT1020713B IT 1020713 B IT1020713 B IT 1020713B IT 6967974 A IT6967974 A IT 6967974A IT 6967974 A IT6967974 A IT 6967974A IT 1020713 B IT1020713 B IT 1020713B
Authority
IT
Italy
Prior art keywords
telephone channels
numerical device
contemporary
connection
contemporary connection
Prior art date
Application number
IT6967974A
Other languages
Italian (it)
Inventor
P Calcagno
Vincentis G De
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT6967974A priority Critical patent/IT1020713B/en
Priority to DE19752538955 priority patent/DE2538955C3/en
Application granted granted Critical
Publication of IT1020713B publication Critical patent/IT1020713B/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
    • H04M3/568—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)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
IT6967974A 1974-09-04 1974-09-04 NUMERICAL DEVICE FOR THE CONTEMPORARY CONNECTION OF THREE OR MORE TELEPHONE CHANNELS BETWEEN THEM IT1020713B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT6967974A IT1020713B (en) 1974-09-04 1974-09-04 NUMERICAL DEVICE FOR THE CONTEMPORARY CONNECTION OF THREE OR MORE TELEPHONE CHANNELS BETWEEN THEM
DE19752538955 DE2538955C3 (en) 1974-09-04 1975-09-02 A method of conferencing and conference circuit arrangement for connecting three or more telephone parties at the same time

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6967974A IT1020713B (en) 1974-09-04 1974-09-04 NUMERICAL DEVICE FOR THE CONTEMPORARY CONNECTION OF THREE OR MORE TELEPHONE CHANNELS BETWEEN THEM

Publications (1)

Publication Number Publication Date
IT1020713B true IT1020713B (en) 1977-12-30

Family

ID=11312610

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6967974A IT1020713B (en) 1974-09-04 1974-09-04 NUMERICAL DEVICE FOR THE CONTEMPORARY CONNECTION OF THREE OR MORE TELEPHONE CHANNELS BETWEEN THEM

Country Status (2)

Country Link
DE (1) DE2538955C3 (en)
IT (1) IT1020713B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005162A1 (en) * 1980-02-12 1981-08-20 Siemens AG, 1000 Berlin und 8000 München METHOD FOR INPUTING HIGH TONES IN CONFERENCE CONNECTIONS
US4388717A (en) * 1981-01-14 1983-06-14 International Telephone And Telegraph Corporation Conference circuit for PCM system

Also Published As

Publication number Publication date
DE2538955A1 (en) 1976-03-25
DE2538955C3 (en) 1981-06-25
DE2538955B2 (en) 1977-08-18

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