NL7115909A - - Google Patents

Info

Publication number
NL7115909A
NL7115909A NL7115909A NL7115909A NL7115909A NL 7115909 A NL7115909 A NL 7115909A NL 7115909 A NL7115909 A NL 7115909A NL 7115909 A NL7115909 A NL 7115909A NL 7115909 A NL7115909 A NL 7115909A
Authority
NL
Netherlands
Application number
NL7115909A
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 SE16092/70A external-priority patent/SE337846B/xx
Application filed filed Critical
Publication of NL7115909A publication Critical patent/NL7115909A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/24—Frequency-independent attenuators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
    • 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)
  • Networks Using Active Elements (AREA)
  • Circuit For Audible Band Transducer (AREA)
NL7115909A 1970-11-27 1971-11-18 NL7115909A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE16092/70A SE337846B (xx) 1970-11-27 1970-11-27
FR7142363A FR2116072A5 (xx) 1970-11-27 1971-11-26

Publications (1)

Publication Number Publication Date
NL7115909A true NL7115909A (xx) 1972-05-30

Family

ID=26216737

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7115909A NL7115909A (xx) 1970-11-27 1971-11-18

Country Status (5)

Country Link
CH (1) CH526234A (xx)
DE (1) DE2157709A1 (xx)
FR (1) FR2116072A5 (xx)
GB (1) GB1350142A (xx)
NL (1) NL7115909A (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2638286C3 (de) * 1976-08-25 1979-03-01 Dasy Inter S.A., Genf (Schweiz) Schaltungsanordnung für ein Freisprechertelefon
JPH08307181A (ja) * 1995-05-09 1996-11-22 Sony Corp レベル制御回路

Also Published As

Publication number Publication date
FR2116072A5 (xx) 1972-07-07
GB1350142A (en) 1974-04-18
DE2157709A1 (de) 1972-06-08
CH526234A (de) 1972-07-31

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Legal Events

Date Code Title Description
BV The patent application has lapsed