DK141430B - Signalmodtager til modtagelse af signaler med forskellige frekvenser og indeholdende en gruppe frekvenskanaler. - Google Patents

Signalmodtager til modtagelse af signaler med forskellige frekvenser og indeholdende en gruppe frekvenskanaler. Download PDF

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Publication number
DK141430B
DK141430B DK439568A DK439568A DK141430B DK 141430 B DK141430 B DK 141430B DK 439568 A DK439568 A DK 439568A DK 439568 A DK439568 A DK 439568A DK 141430 B DK141430 B DK 141430B
Authority
DK
Denmark
Prior art keywords
signal
frequency
output
signal receiver
transistor
Prior art date
Application number
DK439568A
Other languages
Danish (da)
English (en)
Other versions
DK141430C (enExample
Inventor
Hans Cool
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK141430B publication Critical patent/DK141430B/da
Application granted granted Critical
Publication of DK141430C publication Critical patent/DK141430C/da

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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)
  • Circuits Of Receivers In General (AREA)
DK439568A 1967-09-15 1968-09-12 Signalmodtager til modtagelse af signaler med forskellige frekvenser og indeholdende en gruppe frekvenskanaler. DK141430B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6712685A NL6712685A (enExample) 1967-09-15 1967-09-15
NL6712685 1967-09-15

Publications (2)

Publication Number Publication Date
DK141430B true DK141430B (da) 1980-03-10
DK141430C DK141430C (enExample) 1980-09-15

Family

ID=19801225

Family Applications (1)

Application Number Title Priority Date Filing Date
DK439568A DK141430B (da) 1967-09-15 1968-09-12 Signalmodtager til modtagelse af signaler med forskellige frekvenser og indeholdende en gruppe frekvenskanaler.

Country Status (6)

Country Link
AT (1) AT289213B (enExample)
BE (1) BE720880A (enExample)
DK (1) DK141430B (enExample)
FR (1) FR1579910A (enExample)
GB (1) GB1190286A (enExample)
NL (1) NL6712685A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2116635C3 (de) * 1971-04-05 1978-10-05 Ibm Deutschland Gmbh, 7000 Stuttgart Verfahren zur digitalen Decodierung frequenzcodierter Signale und Schaltungsanordnung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
BE720880A (enExample) 1969-03-13
DK141430C (enExample) 1980-09-15
NL6712685A (enExample) 1969-03-18
FR1579910A (enExample) 1969-08-29
GB1190286A (en) 1970-04-29
AT289213B (de) 1971-04-13

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