DK142390B - Taleskifteanordning. - Google Patents

Taleskifteanordning. Download PDF

Info

Publication number
DK142390B
DK142390B DK254577AA DK254577A DK142390B DK 142390 B DK142390 B DK 142390B DK 254577A A DK254577A A DK 254577AA DK 254577 A DK254577 A DK 254577A DK 142390 B DK142390 B DK 142390B
Authority
DK
Denmark
Prior art keywords
output
input
logical
counter
signal
Prior art date
Application number
DK254577AA
Other languages
Danish (da)
English (en)
Other versions
DK254577A (Sortimente
DK142390C (Sortimente
Inventor
Lars Percy Karlsson
Original Assignee
Lars Percy Karlsson
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 Lars Percy Karlsson filed Critical Lars Percy Karlsson
Publication of DK254577A publication Critical patent/DK254577A/da
Publication of DK142390B publication Critical patent/DK142390B/da
Application granted granted Critical
Publication of DK142390C publication Critical patent/DK142390C/da

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/085—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using digital techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Liquid Developers In Electrophotography (AREA)
DK254577AA 1976-06-08 1977-06-08 Taleskifteanordning. DK142390B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7606399 1976-06-08
SE7606399A SE399502B (sv) 1976-06-08 1976-06-08 For telefonanleggningar med hogtalarforsedda telefonapparater avsedd styranordning

Publications (3)

Publication Number Publication Date
DK254577A DK254577A (Sortimente) 1977-12-09
DK142390B true DK142390B (da) 1980-10-20
DK142390C DK142390C (Sortimente) 1981-03-16

Family

ID=20328149

Family Applications (1)

Application Number Title Priority Date Filing Date
DK254577AA DK142390B (da) 1976-06-08 1977-06-08 Taleskifteanordning.

Country Status (8)

Country Link
US (1) US4123620A (Sortimente)
AU (1) AU508617B2 (Sortimente)
DE (1) DE2726060A1 (Sortimente)
DK (1) DK142390B (Sortimente)
FR (1) FR2354668A1 (Sortimente)
GB (1) GB1524756A (Sortimente)
NO (1) NO141968B (Sortimente)
SE (1) SE399502B (Sortimente)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1149524A (en) * 1980-10-03 1983-07-05 David H.A. Black Noise signal level control in a tasi system
GB2122851B (en) * 1982-06-10 1986-03-19 Standard Telephones Cables Ltd Loudspeaking telephones
GB2174578B (en) * 1985-05-04 1988-11-09 Stc Plc Loud speaking telephone
DE4130045A1 (de) * 1991-09-10 1993-03-18 Standard Elektrik Lorenz Ag Schaltungsanordnung zur dynamiksteuerung eines sprachendgeraetes
US5384838A (en) * 1992-05-19 1995-01-24 Hoffman; Ronald J. System for communicating through partitions
US8284926B2 (en) * 2007-09-26 2012-10-09 Avaya Inc. Enterprise-distributed noise management
US10751001B2 (en) 2013-12-03 2020-08-25 General Electric Company Systems and methods for tracking and analysis of electrical-physiological interference

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849603A (en) * 1972-10-30 1974-11-19 Mosler Safe Co Remote banking intercom system
US3832491A (en) * 1973-02-13 1974-08-27 Communications Satellite Corp Digital voice switch with an adaptive digitally-controlled threshold
US3958084A (en) * 1974-09-30 1976-05-18 Rockwell International Corporation Conferencing apparatus
US4024345A (en) * 1976-01-14 1977-05-17 Strom Industries International, Inc. Audio program and telephonic communication system

Also Published As

Publication number Publication date
DE2726060A1 (de) 1977-12-22
SE7606399L (sv) 1977-12-09
GB1524756A (en) 1978-09-13
AU508617B2 (en) 1980-03-27
DK254577A (Sortimente) 1977-12-09
FR2354668A1 (fr) 1978-01-06
NO771984L (no) 1977-12-09
SE399502B (sv) 1978-02-13
AU2580577A (en) 1978-12-07
NO141968B (no) 1980-02-25
DK142390C (Sortimente) 1981-03-16
US4123620A (en) 1978-10-31

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