SE424396B - Omkopplarkrets for en konferensforsterkare - Google Patents

Omkopplarkrets for en konferensforsterkare

Info

Publication number
SE424396B
SE424396B SE7614149A SE7614149A SE424396B SE 424396 B SE424396 B SE 424396B SE 7614149 A SE7614149 A SE 7614149A SE 7614149 A SE7614149 A SE 7614149A SE 424396 B SE424396 B SE 424396B
Authority
SE
Sweden
Prior art keywords
confirm
remote
conference amplifier
conference
amplifier
Prior art date
Application number
SE7614149A
Other languages
English (en)
Swedish (sv)
Other versions
SE7614149L (sv
Inventor
R A Jones
Original Assignee
Post Office
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
Priority claimed from GB51587/75A external-priority patent/GB1565200A/en
Application filed by Post Office filed Critical Post Office
Publication of SE7614149L publication Critical patent/SE7614149L/xx
Publication of SE424396B publication Critical patent/SE424396B/xx

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Interface Circuits In Exchanges (AREA)
SE7614149A 1975-12-17 1976-12-16 Omkopplarkrets for en konferensforsterkare SE424396B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51587/75A GB1565200A (en) 1976-01-06 1975-12-17 Switching circuit

Publications (2)

Publication Number Publication Date
SE7614149L SE7614149L (sv) 1977-06-18
SE424396B true SE424396B (sv) 1982-07-12

Family

ID=10460615

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7614149A SE424396B (sv) 1975-12-17 1976-12-16 Omkopplarkrets for en konferensforsterkare

Country Status (5)

Country Link
BE (1) BE849549A (enrdf_load_stackoverflow)
CA (1) CA1064632A (enrdf_load_stackoverflow)
FR (1) FR2335999A1 (enrdf_load_stackoverflow)
NL (1) NL7613987A (enrdf_load_stackoverflow)
SE (1) SE424396B (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502905A (en) * 1967-05-17 1970-03-24 Honeywell Inc Differential amplifier and field effect transistor gates for applying largest of two inputs to output
GB1395495A (en) * 1971-06-30 1975-05-29 Post Office Telephone conference amplifier

Also Published As

Publication number Publication date
FR2335999B1 (enrdf_load_stackoverflow) 1982-07-09
FR2335999A1 (fr) 1977-07-15
SE7614149L (sv) 1977-06-18
NL7613987A (nl) 1977-06-21
CA1064632A (en) 1979-10-16
BE849549A (fr) 1977-04-15

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