CA938706A - Telecommunication exchanges - Google Patents

Telecommunication exchanges

Info

Publication number
CA938706A
CA938706A CA095046A CA95046A CA938706A CA 938706 A CA938706 A CA 938706A CA 095046 A CA095046 A CA 095046A CA 95046 A CA95046 A CA 95046A CA 938706 A CA938706 A CA 938706A
Authority
CA
Canada
Prior art keywords
telecommunication exchanges
telecommunication
exchanges
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA095046A
Inventor
M. Thomas David
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Telephone and Telegraph Corp
Original Assignee
International Telephone and Telegraph 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 International Telephone and Telegraph Corp filed Critical International Telephone and Telegraph Corp
Application granted granted Critical
Publication of CA938706A publication Critical patent/CA938706A/en
Expired legal-status Critical Current

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)
  • Time-Division Multiplex Systems (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
CA095046A 1969-10-21 1970-10-07 Telecommunication exchanges Expired CA938706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5162969A GB1280045A (en) 1969-10-21 1969-10-21 Improvements in or relating to telecommunication exchanges

Publications (1)

Publication Number Publication Date
CA938706A true CA938706A (en) 1973-12-18

Family

ID=10460780

Family Applications (1)

Application Number Title Priority Date Filing Date
CA095046A Expired CA938706A (en) 1969-10-21 1970-10-07 Telecommunication exchanges

Country Status (5)

Country Link
BE (1) BE757766A (en)
CA (1) CA938706A (en)
ES (1) ES384718A2 (en)
FR (1) FR2077510A6 (en)
GB (1) GB1280045A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7528755B2 (en) 2007-09-06 2009-05-05 Infineon Technologies Ag Sigma-delta modulator for operating sensors

Also Published As

Publication number Publication date
FR2077510A6 (en) 1971-10-29
GB1280045A (en) 1972-07-05
ES384718A2 (en) 1973-03-16
BE757766A (en) 1971-04-21

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