CH232002A - Electrical signaling system. - Google Patents

Electrical signaling system.

Info

Publication number
CH232002A
CH232002A CH232002DA CH232002A CH 232002 A CH232002 A CH 232002A CH 232002D A CH232002D A CH 232002DA CH 232002 A CH232002 A CH 232002A
Authority
CH
Switzerland
Prior art keywords
signaling system
electrical signaling
electrical
signaling
Prior art date
Application number
Other languages
German (de)
Inventor
Ag Standard Telephon Und Radio
Original Assignee
Standard Telephon & Radio 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 Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Publication of CH232002A publication Critical patent/CH232002A/en

Links

Classifications

    • 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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
CH232002D 1941-06-26 1942-06-26 Electrical signaling system. CH232002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL232002X 1941-06-26

Publications (1)

Publication Number Publication Date
CH232002A true CH232002A (en) 1944-04-30

Family

ID=19780020

Family Applications (1)

Application Number Title Priority Date Filing Date
CH232002D CH232002A (en) 1941-06-26 1942-06-26 Electrical signaling system.

Country Status (2)

Country Link
BE (1) BE446654A (en)
CH (1) CH232002A (en)

Also Published As

Publication number Publication date
BE446654A (en)

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