CA1129967A - Level indicating circuit - Google Patents

Level indicating circuit

Info

Publication number
CA1129967A
CA1129967A CA346,941A CA346941A CA1129967A CA 1129967 A CA1129967 A CA 1129967A CA 346941 A CA346941 A CA 346941A CA 1129967 A CA1129967 A CA 1129967A
Authority
CA
Canada
Prior art keywords
current
transistor
transistors
level
input signal
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA346,941A
Other languages
English (en)
French (fr)
Inventor
Taiwa Okanobu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1129967A publication Critical patent/CA1129967A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Amplifiers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
CA346,941A 1979-03-05 1980-03-04 Level indicating circuit Expired CA1129967A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2525279A JPS55117971A (en) 1979-03-05 1979-03-05 Level indication circuit
JP25252/79 1979-03-05

Publications (1)

Publication Number Publication Date
CA1129967A true CA1129967A (en) 1982-08-17

Family

ID=12160798

Family Applications (1)

Application Number Title Priority Date Filing Date
CA346,941A Expired CA1129967A (en) 1979-03-05 1980-03-04 Level indicating circuit

Country Status (8)

Country Link
US (1) US4309656A (OSRAM)
JP (1) JPS55117971A (OSRAM)
AU (1) AU529957B2 (OSRAM)
CA (1) CA1129967A (OSRAM)
DE (1) DE3008469A1 (OSRAM)
FR (1) FR2451035A1 (OSRAM)
GB (1) GB2045951B (OSRAM)
NL (1) NL191684C (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145890B (en) * 1983-09-01 1987-05-20 Plessey Co Plc Signal strength detector
JPS623536A (ja) * 1985-06-29 1987-01-09 Oki Electric Ind Co Ltd 移動体データ通信の良否判定装置
FI89110C (fi) * 1991-09-19 1993-08-10 Nokia Mobile Phones Ltd Effektdetektor
EP0822392A1 (en) * 1996-07-30 1998-02-04 STMicroelectronics S.r.l. Circuit for ratiometric processing and driving
JP2001526873A (ja) * 1998-02-26 2001-12-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 交流振幅依存形標識の発生装置
JP2002151966A (ja) * 2000-11-14 2002-05-24 Pioneer Electronic Corp アイソレータ回路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668426A (en) * 1969-07-23 1972-06-06 Dresser Ind Differential pulse height discriminator
FR2070200B1 (OSRAM) * 1969-12-01 1973-02-02 Polska Akademia Unipan
JPS4711275U (OSRAM) * 1971-03-05 1972-10-11
US3879662A (en) * 1974-06-18 1975-04-22 Us Army Differential amplifier sliding reference
JPS54111201A (en) * 1978-02-20 1979-08-31 Nec Corp Signal processing circuit

Also Published As

Publication number Publication date
GB2045951B (en) 1982-12-15
NL191684B (nl) 1995-10-02
US4309656A (en) 1982-01-05
JPH045949B2 (OSRAM) 1992-02-04
NL8001331A (nl) 1980-09-09
GB2045951A (en) 1980-11-05
AU5611880A (en) 1980-09-11
AU529957B2 (en) 1983-06-30
DE3008469A1 (de) 1980-09-18
FR2451035A1 (fr) 1980-10-03
JPS55117971A (en) 1980-09-10
NL191684C (nl) 1996-02-05
DE3008469C2 (OSRAM) 1988-06-23
FR2451035B1 (OSRAM) 1984-05-18

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Legal Events

Date Code Title Description
MKEX Expiry