DK103613C - Amplitude- og støjbegrænsende forforstærker til en modtager for tonefrekvente impulser. - Google Patents

Amplitude- og støjbegrænsende forforstærker til en modtager for tonefrekvente impulser.

Info

Publication number
DK103613C
DK103613C DK10362A DK10362A DK103613C DK 103613 C DK103613 C DK 103613C DK 10362 A DK10362 A DK 10362A DK 10362 A DK10362 A DK 10362A DK 103613 C DK103613 C DK 103613C
Authority
DK
Denmark
Prior art keywords
amplitude
receiver
frequency pulses
tone frequency
noise limiting
Prior art date
Application number
DK10362A
Other languages
English (en)
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
Application granted granted Critical
Publication of DK103613C publication Critical patent/DK103613C/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
    • H04Q1/446—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)
  • Amplifiers (AREA)
  • Noise Elimination (AREA)
DK10362A 1961-01-12 1962-01-09 Amplitude- og støjbegrænsende forforstærker til en modtager for tonefrekvente impulser. DK103613C (da)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DK103613C true DK103613C (da) 1966-01-31

Family

ID=19752806

Family Applications (1)

Application Number Title Priority Date Filing Date
DK10362A DK103613C (da) 1961-01-12 1962-01-09 Amplitude- og støjbegrænsende forforstærker til en modtager for tonefrekvente impulser.

Country Status (5)

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

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
NL259976A (da)
GB921347A (en) 1963-03-20
CH400242A (de) 1965-10-15
DE1165098B (de) 1964-03-12

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