CS186852B1 - Connection for evaluating and control of the received multifrequency coding symbols in the transistor low-frequency signal receivers - Google Patents

Connection for evaluating and control of the received multifrequency coding symbols in the transistor low-frequency signal receivers

Info

Publication number
CS186852B1
CS186852B1 CS477272A CS477272A CS186852B1 CS 186852 B1 CS186852 B1 CS 186852B1 CS 477272 A CS477272 A CS 477272A CS 477272 A CS477272 A CS 477272A CS 186852 B1 CS186852 B1 CS 186852B1
Authority
CS
Czechoslovakia
Prior art keywords
evaluating
connection
frequency signal
control
signal receivers
Prior art date
Application number
CS477272A
Other languages
English (en)
Inventor
Rudi Heyer
Fritz Kahl
Original Assignee
Rudi Heyer
Fritz Kahl
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 Rudi Heyer, Fritz Kahl filed Critical Rudi Heyer
Publication of CS186852B1 publication Critical patent/CS186852B1/cs

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)
  • Electronic Switches (AREA)
  • Amplifiers (AREA)
CS477272A 1971-07-20 1972-07-05 Connection for evaluating and control of the received multifrequency coding symbols in the transistor low-frequency signal receivers CS186852B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15659971 1971-07-20

Publications (1)

Publication Number Publication Date
CS186852B1 true CS186852B1 (en) 1978-12-29

Family

ID=5484096

Family Applications (1)

Application Number Title Priority Date Filing Date
CS477272A CS186852B1 (en) 1971-07-20 1972-07-05 Connection for evaluating and control of the received multifrequency coding symbols in the transistor low-frequency signal receivers

Country Status (3)

Country Link
CS (1) CS186852B1 (cs)
DE (1) DE2223138A1 (cs)
SU (1) SU535756A1 (cs)

Also Published As

Publication number Publication date
DE2223138A1 (de) 1973-02-08
SU535756A1 (ru) 1976-11-15

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