LU60045A1 - - Google Patents

Info

Publication number
LU60045A1
LU60045A1 LU60045DA LU60045A1 LU 60045 A1 LU60045 A1 LU 60045A1 LU 60045D A LU60045D A LU 60045DA LU 60045 A1 LU60045 A1 LU 60045A1
Authority
LU
Luxembourg
Application number
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 filed Critical
Publication of LU60045A1 publication Critical patent/LU60045A1/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/60Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Control Of Amplification And Gain Control (AREA)
LU60045D 1968-12-20 1969-12-18 LU60045A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681816146 DE1816146B2 (de) 1968-12-20 1968-12-20 Schaltungsanordnung fuer lautfernsprechstationen

Publications (1)

Publication Number Publication Date
LU60045A1 true LU60045A1 (de) 1970-02-18

Family

ID=5716962

Family Applications (1)

Application Number Title Priority Date Filing Date
LU60045D LU60045A1 (de) 1968-12-20 1969-12-18

Country Status (9)

Country Link
AT (1) AT299334B (de)
BE (1) BE743453A (de)
CH (1) CH502731A (de)
DE (1) DE1816146B2 (de)
FR (1) FR2026658A1 (de)
GB (1) GB1228117A (de)
LU (1) LU60045A1 (de)
NL (1) NL149661B (de)
SE (1) SE345362B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460575A1 (fr) * 1979-06-29 1981-01-23 Trt Telecom Radio Electr Poste telephonique d'abonne a niveau d'ecoute reglable
DE2937638C2 (de) * 1979-09-18 1981-11-26 Krone Gmbh, 1000 Berlin Rastfreie Taste als Ein-Aus-Schalter und zur Lautstärkeeintellung
US4497980A (en) * 1983-06-16 1985-02-05 Itt Corporation Handsfree circuit for telephone instrument

Also Published As

Publication number Publication date
DE1816146B2 (de) 1972-02-10
FR2026658A1 (de) 1970-09-18
BE743453A (de) 1970-06-19
GB1228117A (de) 1971-04-15
CH502731A (de) 1971-01-31
SE345362B (de) 1972-05-23
NL6918526A (de) 1970-06-23
NL149661B (nl) 1976-05-17
DE1816146A1 (de) 1970-07-02
AT299334B (de) 1972-06-12

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