NL56885C - - Google Patents

Info

Publication number
NL56885C
NL56885C NL56885DA NL56885C NL 56885 C NL56885 C NL 56885C NL 56885D A NL56885D A NL 56885DA NL 56885 C NL56885 C NL 56885C
Authority
NL
Netherlands
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.)
Publication of NL56885C publication Critical patent/NL56885C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
NL56885D 1938-08-03 NL56885C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL95329A DE707378C (de) 1938-08-03 1938-08-03 Schaltungsanordnung fuer Fernmedeanlagen, bei denen die Signale durch Wechselstroeme einer bestimmten Frequenzfolge gegeben werden

Publications (1)

Publication Number Publication Date
NL56885C true NL56885C (enrdf_load_html_response)

Family

ID=27797495

Family Applications (1)

Application Number Title Priority Date Filing Date
NL56885D NL56885C (enrdf_load_html_response) 1938-08-03

Country Status (6)

Country Link
US (1) US2208928A (enrdf_load_html_response)
BE (1) BE435741A (enrdf_load_html_response)
CH (1) CH212535A (enrdf_load_html_response)
DE (1) DE707378C (enrdf_load_html_response)
FR (1) FR858526A (enrdf_load_html_response)
NL (1) NL56885C (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE960737C (de) * 1951-02-24 1957-04-18 Siemens Ag Schaltungsanordnung fuer Fernsprechanlagen, in denen zur Signalgabe Wechselstroeme innerhalb des Sprachbandes benutzt werden
US5528682A (en) * 1995-01-30 1996-06-18 Harris Corporation Double duty capacitor circuit and method

Also Published As

Publication number Publication date
CH212535A (de) 1940-11-30
BE435741A (enrdf_load_html_response)
DE707378C (de) 1941-06-20
FR858526A (fr) 1940-11-27
US2208928A (en) 1940-07-23

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