CH225077A - Sprechfrequenzübertragungsanlage. - Google Patents

Sprechfrequenzübertragungsanlage.

Info

Publication number
CH225077A
CH225077A CH225077DA CH225077A CH 225077 A CH225077 A CH 225077A CH 225077D A CH225077D A CH 225077DA CH 225077 A CH225077 A CH 225077A
Authority
CH
Switzerland
Prior art keywords
transmission system
frequency transmission
voice frequency
voice
transmission
Prior art date
Application number
Other languages
English (en)
Inventor
Bell Telephone Manufac Anonyme
Original Assignee
Bell Telephone Mfg
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 Bell Telephone Mfg filed Critical Bell Telephone Mfg
Publication of CH225077A publication Critical patent/CH225077A/de

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
    • H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
    • H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
CH225077D 1935-09-20 1936-09-19 Sprechfrequenzübertragungsanlage. CH225077A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB200935X 1935-09-20

Publications (1)

Publication Number Publication Date
CH225077A true CH225077A (de) 1942-12-31

Family

ID=10140262

Family Applications (1)

Application Number Title Priority Date Filing Date
CH225077D CH225077A (de) 1935-09-20 1936-09-19 Sprechfrequenzübertragungsanlage.

Country Status (2)

Country Link
CH (1) CH225077A (de)
GB (1) GB463063A (de)

Also Published As

Publication number Publication date
GB463063A (en) 1937-03-22

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