CH400242A - Tonfrequenz-Impulsempfänger - Google Patents

Tonfrequenz-Impulsempfänger

Info

Publication number
CH400242A
CH400242A CH19462A CH19462A CH400242A CH 400242 A CH400242 A CH 400242A CH 19462 A CH19462 A CH 19462A CH 19462 A CH19462 A CH 19462A CH 400242 A CH400242 A CH 400242A
Authority
CH
Switzerland
Prior art keywords
audio frequency
frequency pulse
pulse receiver
receiver
audio
Prior art date
Application number
CH19462A
Other languages
English (en)
Inventor
Johannes Van Berkel Ber Petrus
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 CH400242A publication Critical patent/CH400242A/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
    • H04Q1/444—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)
CH19462A 1961-01-12 1962-01-09 Tonfrequenz-Impulsempfänger CH400242A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL259976 1961-01-12

Publications (1)

Publication Number Publication Date
CH400242A true CH400242A (de) 1965-10-15

Family

ID=19752806

Family Applications (1)

Application Number Title Priority Date Filing Date
CH19462A CH400242A (de) 1961-01-12 1962-01-09 Tonfrequenz-Impulsempfänger

Country Status (5)

Country Link
CH (1) CH400242A (de)
DE (1) DE1165098B (de)
DK (1) DK103613C (de)
GB (1) GB921347A (de)
NL (1) NL259976A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214743B (de) * 1963-02-23 1966-04-21 Tekade Fernmeldeapp Ges Mit Be Schaltungsanordnung zur Auswertung von Mehrfrequenz-Kodezeichen in Fernmelde-, insbesondere Fernsprechanlagen
US3226653A (en) * 1963-05-07 1965-12-28 Ampex Automatic gain control circuit employing variable attenuation balanced diode bridge

Also Published As

Publication number Publication date
GB921347A (en) 1963-03-20
DK103613C (da) 1966-01-31
DE1165098B (de) 1964-03-12
NL259976A (de)

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