FI79216C - Foerfarande foer analog taloeverfoering via radio. - Google Patents

Foerfarande foer analog taloeverfoering via radio. Download PDF

Info

Publication number
FI79216C
FI79216C FI854900A FI854900A FI79216C FI 79216 C FI79216 C FI 79216C FI 854900 A FI854900 A FI 854900A FI 854900 A FI854900 A FI 854900A FI 79216 C FI79216 C FI 79216C
Authority
FI
Finland
Prior art keywords
tone
frequency
speech signal
ass
transmission
Prior art date
Application number
FI854900A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI854900A (fi
FI854900A0 (fi
FI79216B (fi
Inventor
Bodo Rittenauer
Werner Kober
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of FI854900A0 publication Critical patent/FI854900A0/fi
Publication of FI854900A publication Critical patent/FI854900A/fi
Publication of FI79216B publication Critical patent/FI79216B/fi
Application granted granted Critical
Publication of FI79216C publication Critical patent/FI79216C/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Transmitters (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Transceivers (AREA)
  • Radio Transmission System (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Toys (AREA)
FI854900A 1984-12-12 1985-12-11 Foerfarande foer analog taloeverfoering via radio. FI79216C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3445312 1984-12-12
DE3445312 1984-12-12

Publications (4)

Publication Number Publication Date
FI854900A0 FI854900A0 (fi) 1985-12-11
FI854900A FI854900A (fi) 1986-06-13
FI79216B FI79216B (fi) 1989-07-31
FI79216C true FI79216C (fi) 1989-11-10

Family

ID=6252587

Family Applications (1)

Application Number Title Priority Date Filing Date
FI854900A FI79216C (fi) 1984-12-12 1985-12-11 Foerfarande foer analog taloeverfoering via radio.

Country Status (8)

Country Link
EP (1) EP0184811B1 (pt)
AT (1) ATE61503T1 (pt)
DE (1) DE3582023D1 (pt)
ES (1) ES8701442A1 (pt)
FI (1) FI79216C (pt)
IN (1) IN163475B (pt)
NO (1) NO166308C (pt)
PT (1) PT81651B (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016133C2 (de) * 2000-03-31 2002-06-20 Siemens Ag Verfahren zum Sichern einer berührungslosen Signalübertragung von einem Sender zu einem Empfänger sowie Signalübertragungseinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521991C (de) * 1928-08-17 1931-03-28 Telefunken Gmbh Verfahren zur geheimen UEbermittlung í¬ insbesondere von Telephoniestroemen í¬ mittels modulierter Hochfrequenz
CH559483A5 (pt) * 1973-06-12 1975-02-28 Patelhold Patentverwertung
DE2952158A1 (de) * 1979-12-22 1981-06-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Funk-nachrichtenuebertragungsverfahren mit begrenzten, insbesondere sehr kurzen sendezeiten und empfaenger hierfuer
DE3012513C2 (de) * 1980-03-31 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Überwachung analoger und digitaler Funkverbindungen
JPS58198934A (ja) * 1982-05-17 1983-11-19 Sony Corp 秘話装置
GB2128453A (en) * 1982-10-08 1984-04-26 Philips Electronic Associated System identification in communications systems

Also Published As

Publication number Publication date
ATE61503T1 (de) 1991-03-15
PT81651A (pt) 1986-06-11
NO166308C (no) 1991-06-26
FI854900A (fi) 1986-06-13
NO855007L (no) 1986-06-13
EP0184811A2 (de) 1986-06-18
ES8701442A1 (es) 1986-11-16
FI854900A0 (fi) 1985-12-11
FI79216B (fi) 1989-07-31
EP0184811B1 (de) 1991-03-06
IN163475B (pt) 1988-10-01
EP0184811A3 (en) 1988-01-13
ES549878A0 (es) 1986-11-16
DE3582023D1 (de) 1991-04-11
PT81651B (pt) 1994-07-29
NO166308B (no) 1991-03-18

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: SIEMENS AKTIENGESELLSCHAFT