IT941792B - Attenuatore regolabile - Google Patents

Attenuatore regolabile

Info

Publication number
IT941792B
IT941792B IT31704/71A IT3170471A IT941792B IT 941792 B IT941792 B IT 941792B IT 31704/71 A IT31704/71 A IT 31704/71A IT 3170471 A IT3170471 A IT 3170471A IT 941792 B IT941792 B IT 941792B
Authority
IT
Italy
Prior art keywords
adjustable attenuator
attenuator
adjustable
Prior art date
Application number
IT31704/71A
Other languages
English (en)
Italian (it)
Inventor
O Lindgren
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of IT941792B publication Critical patent/IT941792B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/20—Arrangements for preventing acoustic feed-back
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
IT31704/71A 1970-11-27 1971-11-26 Attenuatore regolabile IT941792B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE16092/70A SE337846B (de) 1970-11-27 1970-11-27

Publications (1)

Publication Number Publication Date
IT941792B true IT941792B (it) 1973-03-10

Family

ID=20301714

Family Applications (1)

Application Number Title Priority Date Filing Date
IT31704/71A IT941792B (it) 1970-11-27 1971-11-26 Attenuatore regolabile

Country Status (5)

Country Link
ES (1) ES396938A1 (de)
FI (1) FI54424C (de)
IT (1) IT941792B (de)
NO (1) NO125708B (de)
SE (1) SE337846B (de)

Also Published As

Publication number Publication date
SE337846B (de) 1971-08-23
NO125708B (de) 1972-10-16
FI54424B (fi) 1978-07-31
ES396938A1 (es) 1975-03-01
FI54424C (fi) 1978-11-10

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