SE7408878L - - Google Patents

Info

Publication number
SE7408878L
SE7408878L SE7408878A SE7408878A SE7408878L SE 7408878 L SE7408878 L SE 7408878L SE 7408878 A SE7408878 A SE 7408878A SE 7408878 A SE7408878 A SE 7408878A SE 7408878 L SE7408878 L SE 7408878L
Authority
SE
Sweden
Application number
SE7408878A
Other languages
Unknown language ( )
Inventor
P W Denby
G J Foster
A V Mayhew
Original Assignee
Secr Defence Brit
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 Secr Defence Brit filed Critical Secr Defence Brit
Publication of SE7408878L publication Critical patent/SE7408878L/

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present
    • H03G3/344—Muting responsive to the amount of noise (noise squelch)
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
SE7408878A 1973-07-06 1974-07-05 SE7408878L (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3227273 1973-07-06

Publications (1)

Publication Number Publication Date
SE7408878L true SE7408878L (enrdf_load_stackoverflow) 1975-01-07

Family

ID=10336029

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7408878A SE7408878L (enrdf_load_stackoverflow) 1973-07-06 1974-07-05

Country Status (4)

Country Link
DE (1) DE2432371A1 (enrdf_load_stackoverflow)
FR (1) FR2236320B3 (enrdf_load_stackoverflow)
IT (1) IT1014479B (enrdf_load_stackoverflow)
SE (1) SE7408878L (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066878A (en) * 1976-03-29 1978-01-03 Miller Raymond M Time-domain filter for recursive type signals
FR2410923A1 (fr) * 1977-08-18 1979-06-29 Dassault Electronique Installation de transmission telephonique de la parole entre des interlocuteurs places dans une ambiance bruyante
FR2502370A1 (fr) * 1981-03-18 1982-09-24 Trt Telecom Radio Electr Dispositif de reduction du bruit dans un signal de parole mele de bruit
DE3629596A1 (de) * 1986-08-30 1988-03-03 Standard Elektrik Lorenz Ag Schaltungsanordnung zur entkopplung der uebertragungszweige einer freisprecheinrichtung
GB8823080D0 (en) * 1988-09-30 1988-11-09 Stc Plc Noise reduction in speech transmitter circuits

Also Published As

Publication number Publication date
DE2432371A1 (de) 1975-02-27
FR2236320B3 (enrdf_load_stackoverflow) 1977-05-06
FR2236320A1 (enrdf_load_stackoverflow) 1975-01-31
IT1014479B (it) 1977-04-20

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