FR703983A - Installations téléphoniques ne comportant pas de phénomènes de diaphonie - Google Patents

Installations téléphoniques ne comportant pas de phénomènes de diaphonie

Info

Publication number
FR703983A
FR703983A FR703983DA FR703983A FR 703983 A FR703983 A FR 703983A FR 703983D A FR703983D A FR 703983DA FR 703983 A FR703983 A FR 703983A
Authority
FR
France
Prior art keywords
telephone installations
crosstalk phenomena
free
installations free
crosstalk
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR703983A publication Critical patent/FR703983A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/04—Arrangements for indicating calls or supervising connections for calling or clearing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/32—Reducing cross-talk, e.g. by compensating
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/68—Circuit arrangements for preventing eavesdropping

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR703983D 1929-08-22 1930-08-12 Installations téléphoniques ne comportant pas de phénomènes de diaphonie Expired FR703983A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE538837T 1929-08-22

Publications (1)

Publication Number Publication Date
FR703983A true FR703983A (fr) 1931-05-08

Family

ID=34122368

Family Applications (1)

Application Number Title Priority Date Filing Date
FR703983D Expired FR703983A (fr) 1929-08-22 1930-08-12 Installations téléphoniques ne comportant pas de phénomènes de diaphonie

Country Status (4)

Country Link
DE (2) DE538837C (fr)
FR (1) FR703983A (fr)
GB (1) GB362478A (fr)
NL (1) NL32155C (fr)

Also Published As

Publication number Publication date
DE538837C (de) 1931-11-19
GB362478A (en) 1931-12-07
NL32155C (fr)
DE604196C (de) 1934-10-19

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