HK19483A - Signal level detector - Google Patents

Signal level detector

Info

Publication number
HK19483A
HK19483A HK194/83A HK19483A HK19483A HK 19483 A HK19483 A HK 19483A HK 194/83 A HK194/83 A HK 194/83A HK 19483 A HK19483 A HK 19483A HK 19483 A HK19483 A HK 19483A
Authority
HK
Hong Kong
Prior art keywords
signal level
level detector
detector
signal
level
Prior art date
Application number
HK194/83A
Other languages
English (en)
Inventor
Bernardus Verhoeven
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 HK19483A publication Critical patent/HK19483A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
    • G01R19/1658—AC voltage or recurrent signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Control Of Amplification And Gain Control (AREA)
HK194/83A 1978-02-21 1983-06-08 Signal level detector HK19483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7801907A NL7801907A (nl) 1978-02-21 1978-02-21 Detektor.

Publications (1)

Publication Number Publication Date
HK19483A true HK19483A (en) 1983-06-17

Family

ID=19830366

Family Applications (1)

Application Number Title Priority Date Filing Date
HK194/83A HK19483A (en) 1978-02-21 1983-06-08 Signal level detector

Country Status (10)

Country Link
US (1) US4245170A (it)
JP (1) JPS54122955A (it)
CA (1) CA1138057A (it)
CH (1) CH641607A5 (it)
DE (1) DE2906094A1 (it)
FR (1) FR2417890A1 (it)
GB (1) GB2020935B (it)
HK (1) HK19483A (it)
IT (1) IT1112172B (it)
NL (1) NL7801907A (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909520C3 (de) * 1979-03-10 1981-12-03 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur Dämpfung von Störgeräuschen
IT1227494B (it) * 1988-11-24 1991-04-12 Sgs Thomson Microelectronics Rivelatore di livello di tipo bipolare integrabile per segnali sinusoidali ad alta frequenza
DE4411805B4 (de) * 1994-04-06 2008-08-28 Michael Riedel Transformatorenbau Elektronik Gmbh Stromsteller
US5517134A (en) * 1994-09-16 1996-05-14 Texas Instruments Incorporated Offset comparator with common mode voltage stability
DE19606792A1 (de) * 1996-02-23 1997-08-28 Abb Daimler Benz Transp Schienenfahrzeug mit Wagenkasten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719895A (en) * 1971-03-11 1973-03-06 Northern Electric Co Automatic gain control circuit
CA923573A (en) * 1971-03-11 1973-03-27 Northern Electric Company Automatic gain control circuit
US3989959A (en) * 1975-08-28 1976-11-02 Vitatron Medical B.V. Low current drain amplifier incorporating feedback means for establishing sensitivity
US4143331A (en) * 1977-12-16 1979-03-06 National Semiconductor Corporation Summing amplifier for developing a squelch and meter voltage in a radio receiver

Also Published As

Publication number Publication date
CH641607A5 (de) 1984-02-29
GB2020935B (en) 1982-03-31
FR2417890A1 (fr) 1979-09-14
NL7801907A (nl) 1979-08-23
DE2906094A1 (de) 1979-10-04
IT7920295A0 (it) 1979-02-16
GB2020935A (en) 1979-11-21
IT1112172B (it) 1986-01-13
CA1138057A (en) 1982-12-21
JPS54122955A (en) 1979-09-22
US4245170A (en) 1981-01-13

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