DK136048B - Coupling to regulated multi-frequency receivers in remote control systems, in particular telephone systems. - Google Patents

Coupling to regulated multi-frequency receivers in remote control systems, in particular telephone systems.

Info

Publication number
DK136048B
DK136048B DK362768A DK362768A DK136048B DK 136048 B DK136048 B DK 136048B DK 362768 A DK362768 A DK 362768A DK 362768 A DK362768 A DK 362768A DK 136048 B DK136048 B DK 136048B
Authority
DK
Denmark
Prior art keywords
coupling
remote control
systems
particular telephone
frequency receivers
Prior art date
Application number
DK362768A
Other languages
Danish (da)
Other versions
DK136048C (en
Inventor
Dirsko Von Pfeil
Original Assignee
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 Ag filed Critical Siemens Ag
Publication of DK136048B publication Critical patent/DK136048B/en
Application granted granted Critical
Publication of DK136048C publication Critical patent/DK136048C/da

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
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
DK362768A 1967-07-28 1968-07-26 Coupling to regulated multi-frequency receivers in remote control systems, in particular telephone systems. DK136048B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0111063 1967-07-28

Publications (2)

Publication Number Publication Date
DK136048B true DK136048B (en) 1977-08-01
DK136048C DK136048C (en) 1978-01-23

Family

ID=7530706

Family Applications (1)

Application Number Title Priority Date Filing Date
DK362768A DK136048B (en) 1967-07-28 1968-07-26 Coupling to regulated multi-frequency receivers in remote control systems, in particular telephone systems.

Country Status (3)

Country Link
DE (1) DE1537812B1 (en)
DK (1) DK136048B (en)
FI (1) FI54667C (en)

Also Published As

Publication number Publication date
DK136048C (en) 1978-01-23
FI54667B (en) 1978-09-29
FI54667C (en) 1979-01-10
DE1537812B1 (en) 1970-06-25

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