FI854644A0 - ANALYSIS OF FOER AND IMPULSIS UPPTRAEDANDE TONSIGNAL. - Google Patents

ANALYSIS OF FOER AND IMPULSIS UPPTRAEDANDE TONSIGNAL.

Info

Publication number
FI854644A0
FI854644A0 FI854644A FI854644A FI854644A0 FI 854644 A0 FI854644 A0 FI 854644A0 FI 854644 A FI854644 A FI 854644A FI 854644 A FI854644 A FI 854644A FI 854644 A0 FI854644 A0 FI 854644A0
Authority
FI
Finland
Prior art keywords
upptraedande
impulsis
tonsignal
foer
analysis
Prior art date
Application number
FI854644A
Other languages
Finnish (fi)
Other versions
FI854644A (en
Inventor
Martin Aeberhard
Dieter Gisiger
Jean-Pierre Jacot
Original Assignee
Autophon 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 Autophon Ag filed Critical Autophon Ag
Publication of FI854644A0 publication Critical patent/FI854644A0/en
Publication of FI854644A publication Critical patent/FI854644A/en

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
    • H04Q1/46—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current
FI854644A 1984-11-30 1985-11-25 ANALYSIS OF FOER AND IMPULSIS UPPTRAEDANDE TONSIGNAL. FI854644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH5725/84A CH672968A5 (en) 1984-11-30 1984-11-30

Publications (2)

Publication Number Publication Date
FI854644A0 true FI854644A0 (en) 1985-11-25
FI854644A FI854644A (en) 1986-05-31

Family

ID=4298317

Family Applications (1)

Application Number Title Priority Date Filing Date
FI854644A FI854644A (en) 1984-11-30 1985-11-25 ANALYSIS OF FOER AND IMPULSIS UPPTRAEDANDE TONSIGNAL.

Country Status (5)

Country Link
EP (1) EP0184984A1 (en)
CH (1) CH672968A5 (en)
ES (1) ES8705155A1 (en)
FI (1) FI854644A (en)
NO (1) NO854745L (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1072242B (en) * 1976-12-17 1985-04-10 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR THE RECOGNITION OF TELEPHONE SIGNALS IN MULTIFREQUENCY CODE CONVERTED IN NUMERICAL FORM
US4354248A (en) * 1979-11-28 1982-10-12 Motorola, Inc. Programmable multifrequency tone receiver
IT1148885B (en) * 1980-07-09 1986-12-03 Sits Soc It Telecom Siemens MULTIFREQUENCY TYPE SIGNALING CONTROL UNIT, OF PARTICULAR APPLICATION IN TELEPHONE UNITS FOR NUMERIC TYPES OF TRANSIT

Also Published As

Publication number Publication date
CH672968A5 (en) 1990-01-15
FI854644A (en) 1986-05-31
ES8705155A1 (en) 1987-04-16
NO854745L (en) 1986-06-02
EP0184984A1 (en) 1986-06-18
ES549453A0 (en) 1987-04-16

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: AUTOPHON A.G.