NL6814198A - - Google Patents

Info

Publication number
NL6814198A
NL6814198A NL6814198A NL6814198A NL6814198A NL 6814198 A NL6814198 A NL 6814198A NL 6814198 A NL6814198 A NL 6814198A NL 6814198 A NL6814198 A NL 6814198A NL 6814198 A NL6814198 A NL 6814198A
Authority
NL
Netherlands
Application number
NL6814198A
Other versions
NL165629B (nl
NL165629C (nl
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 NL6814198A publication Critical patent/NL6814198A/xx
Publication of NL165629B publication Critical patent/NL165629B/nl
Application granted granted Critical
Publication of NL165629C publication Critical patent/NL165629C/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
NL6814198.A 1967-10-23 1968-10-03 Telefoontoestel. NL165629C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2189267 1967-10-23

Publications (3)

Publication Number Publication Date
NL6814198A true NL6814198A (nl) 1969-04-25
NL165629B NL165629B (nl) 1980-11-17
NL165629C NL165629C (nl) 1981-04-15

Family

ID=11188302

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6814198.A NL165629C (nl) 1967-10-23 1968-10-03 Telefoontoestel.

Country Status (2)

Country Link
US (1) US3548111A (nl)
NL (1) NL165629C (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS495644B1 (nl) * 1970-02-07 1974-02-08
JPS4946485B1 (nl) * 1970-09-30 1974-12-10
US5249225A (en) * 1991-10-25 1993-09-28 Coherent Communications Systems Corp. Self-balancing hybrid using digitally programmable attenuator for variable impedance elements

Also Published As

Publication number Publication date
NL165629B (nl) 1980-11-17
NL165629C (nl) 1981-04-15
DE1804745A1 (de) 1969-06-04
DE1804745B2 (de) 1971-07-08
US3548111A (en) 1970-12-15

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee