FI854516A - Kopplingsschema foer tillverkning av ett mottagningskriterium. - Google Patents

Kopplingsschema foer tillverkning av ett mottagningskriterium. Download PDF

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Publication number
FI854516A
FI854516A FI854516A FI854516A FI854516A FI 854516 A FI854516 A FI 854516A FI 854516 A FI854516 A FI 854516A FI 854516 A FI854516 A FI 854516A FI 854516 A FI854516 A FI 854516A
Authority
FI
Finland
Prior art keywords
time
reference time
mottagningskriterium
kopplingsschema
ett
Prior art date
Application number
FI854516A
Other languages
English (en)
Other versions
FI854516A0 (fi
FI79006B (fi
FI79006C (fi
Inventor
Ernst Dreier
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 FI854516A0 publication Critical patent/FI854516A0/fi
Publication of FI854516A publication Critical patent/FI854516A/fi
Publication of FI79006B publication Critical patent/FI79006B/fi
Application granted granted Critical
Publication of FI79006C publication Critical patent/FI79006C/fi

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/344—Muting responsive to the amount of noise (noise squelch)

Landscapes

  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Burglar Alarm Systems (AREA)
FI854516A 1984-11-15 1985-11-15 Kopplingsschema foer tillverkning av ett mottagningskriterium. FI79006C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH545984 1984-11-15
CH545984 1984-11-15

Publications (4)

Publication Number Publication Date
FI854516A0 FI854516A0 (fi) 1985-11-15
FI854516A true FI854516A (fi) 1986-05-16
FI79006B FI79006B (fi) 1989-06-30
FI79006C FI79006C (fi) 1989-10-10

Family

ID=4293959

Family Applications (1)

Application Number Title Priority Date Filing Date
FI854516A FI79006C (fi) 1984-11-15 1985-11-15 Kopplingsschema foer tillverkning av ett mottagningskriterium.

Country Status (7)

Country Link
US (1) US4731868A (fi)
EP (1) EP0182742B1 (fi)
AT (1) ATE45252T1 (fi)
DE (1) DE3572099D1 (fi)
DK (1) DK525185A (fi)
ES (1) ES8704686A1 (fi)
FI (1) FI79006C (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5016186A (en) * 1988-02-09 1991-05-14 Mitsubishi Jukogyo Kabushiki Kaisha Method of detecting noise disappearance and detecting device therefor
US5046126A (en) * 1988-08-25 1991-09-03 Ericsson Ge Mobile Communications Inc. Fast settling tone/data processing circuit for a radio receiver
US4969852A (en) * 1989-09-13 1990-11-13 Public Service Company Of Colorado Channel discriminator circuit for paging stations
US5199109A (en) * 1989-10-26 1993-03-30 Uniden Multi channel scanning receiver with improved signal strength detecting circuitry
US5073976A (en) * 1989-11-30 1991-12-17 Ford Motor Company Signal-to-noise ratio indicating circuit for fm receivers
US5220687A (en) * 1990-05-30 1993-06-15 Pioneer Electronic Corporation Radio receiver having switch for switching between a wide filter and a narrow filter
US5140702A (en) * 1990-06-05 1992-08-18 Motorola, Inc. Time based signal detector for operating in a presence search mode and absence search mode during peak times and off peak times
US5450622A (en) * 1991-07-23 1995-09-12 Ericsson Inc. Method and apparatus for providing a very fast acting noise squelch control system for an RF radio receiver
DE4321118C2 (de) * 1993-06-25 1996-02-15 Grundig Emv Verfahren zur automatischen und feldstärkeabhängigen Sendersuchlaufsteuerung und danach arbeitender Empfänger
US6259904B1 (en) 1997-10-06 2001-07-10 Motorola, Inc. Fast squelch circuit and method
DE10320460B4 (de) * 2002-05-28 2006-12-14 Tyco Electronics Amp Gmbh Elektrische Steckverbindung
US7120408B2 (en) * 2003-07-31 2006-10-10 Agilent Technologies, Inc. Differential signal squelch detection circuit and method
US10957445B2 (en) 2017-10-05 2021-03-23 Hill-Rom Services, Inc. Caregiver and staff information system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA761696B (en) * 1975-03-20 1977-07-27 Blaupunkt Werke Gmbh Circuit for blanking interference pulses
US4419765A (en) * 1979-10-12 1983-12-06 Keith H. Wycoff Signal absence detector
US4359780A (en) * 1980-08-06 1982-11-16 Motorola, Inc. (Corporate Offices) High speed squelch circuit
US4378605A (en) * 1981-06-29 1983-03-29 Motorola Inc. Apparatus for detection of uniformly distributed noise interference and method therefor
US4498195A (en) * 1982-03-05 1985-02-05 Nippon Telegraph & Telephone Public Corporation Radio interference detection device for use in a multi-channel access angle-modulation radio system

Also Published As

Publication number Publication date
EP0182742A1 (de) 1986-05-28
EP0182742B1 (de) 1989-08-02
US4731868A (en) 1988-03-15
DE3572099D1 (en) 1989-09-07
ES548892A0 (es) 1987-04-01
DK525185D0 (da) 1985-11-14
FI854516A0 (fi) 1985-11-15
ES8704686A1 (es) 1987-04-01
DK525185A (da) 1986-05-16
ATE45252T1 (de) 1989-08-15
FI79006B (fi) 1989-06-30
FI79006C (fi) 1989-10-10

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Legal Events

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MM Patent lapsed

Owner name: ASCOM AUTOPHON AG