FR2449286A1 - Circuit discriminateur de frequence et procede d'utilisation - Google Patents

Circuit discriminateur de frequence et procede d'utilisation

Info

Publication number
FR2449286A1
FR2449286A1 FR8003441A FR8003441A FR2449286A1 FR 2449286 A1 FR2449286 A1 FR 2449286A1 FR 8003441 A FR8003441 A FR 8003441A FR 8003441 A FR8003441 A FR 8003441A FR 2449286 A1 FR2449286 A1 FR 2449286A1
Authority
FR
France
Prior art keywords
signal
frequency
signal received
sensitive
determining
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.)
Granted
Application number
FR8003441A
Other languages
English (en)
French (fr)
Other versions
FR2449286B1 (en, 2012
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Publication of FR2449286A1 publication Critical patent/FR2449286A1/fr
Application granted granted Critical
Publication of FR2449286B1 publication Critical patent/FR2449286B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/0205—Circuit arrangements for generating control signals using an auxiliary engine speed control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/56—Devices characterised by the use of electric or magnetic means for comparing two speeds
    • G01P3/60—Devices characterised by the use of electric or magnetic means for comparing two speeds by measuring or comparing frequency of generated currents or voltages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/15—Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Manipulation Of Pulses (AREA)
FR8003441A 1979-02-16 1980-02-15 Circuit discriminateur de frequence et procede d'utilisation Granted FR2449286A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1599679A JPS55109968A (en) 1979-02-16 1979-02-16 Frequency decision circuit

Publications (2)

Publication Number Publication Date
FR2449286A1 true FR2449286A1 (fr) 1980-09-12
FR2449286B1 FR2449286B1 (en, 2012) 1984-03-16

Family

ID=11904247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003441A Granted FR2449286A1 (fr) 1979-02-16 1980-02-15 Circuit discriminateur de frequence et procede d'utilisation

Country Status (5)

Country Link
US (1) US4322642A (en, 2012)
JP (1) JPS55109968A (en, 2012)
DE (1) DE3005713C2 (en, 2012)
FR (1) FR2449286A1 (en, 2012)
GB (1) GB2045558B (en, 2012)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596871A1 (fr) * 1986-03-29 1987-10-09 Fichtel & Sachs Ag Commutateur de frequence
EP0350184A3 (en) * 1988-07-05 1990-12-05 International Business Machines Corporation Pulse train interruption sensing circuit
EP0872739A3 (en) * 1997-04-16 1999-05-06 Nec Corporation Frequency detection circuit

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6037815A (ja) * 1983-08-09 1985-02-27 Nec Corp クロツク検出回路
US4633097A (en) * 1983-11-17 1986-12-30 Motorola, Inc. Clock monitor circuit and method
JPS6450611A (en) * 1987-08-21 1989-02-27 Nec Corp Phase shifter
US4912419A (en) * 1988-12-19 1990-03-27 Ford Motor Company Signal conditioning circuit and method
JP2635778B2 (ja) * 1989-09-21 1997-07-30 株式会社東芝 パルス回路
JPH0632632U (ja) * 1992-10-07 1994-04-28 株式会社サンゴ 支柱不要のメッシュフェンス
DE4325680A1 (de) * 1993-07-30 1995-02-02 Acer Peripherals Inc Vorrichtung zum Detektieren einer Signalfrequenz und Steuern einer Anzeigevorrichtung
US5546025A (en) * 1994-03-11 1996-08-13 Mitel, Inc. Low frequency discrimator using upper and lower thresholds
US7580482B2 (en) * 2003-02-19 2009-08-25 Endres Thomas J Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver
CN102520244A (zh) * 2011-12-21 2012-06-27 山河智能装备股份有限公司 一种频率信号检测电路

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294999B (de) * 1968-03-01 1969-05-14 Ibm Deutschland Impulsfolgefrequenz-Diskriminator
FR2244177A1 (en, 2012) * 1973-09-17 1975-04-11 Buck Robert
DE2350514A1 (de) * 1973-10-09 1975-04-30 Endress Hauser Gmbh Co Schaltungsanordnung zur anzeige von frequenzaenderungen einer wechselspannung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1541895A1 (de) * 1965-11-15 1969-11-06 Westland Aircraft Ltd Frequenzbestimmung auf elektronischem Wege
ES357297A1 (es) * 1967-08-17 1970-03-01 Standard Electrica Sa Detector de tono.
US3585400A (en) * 1968-12-12 1971-06-15 Gosh Instr Inc Electrical frequency detecting device and method
US3594588A (en) * 1969-04-01 1971-07-20 Motorola Inc Frequency detection system
US3497816A (en) * 1969-04-16 1970-02-24 American Mach & Foundry Frequency sensor and control circuit
US4217506A (en) * 1978-05-17 1980-08-12 Northern Telecom, Inc. Level selective a-c monitoring circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294999B (de) * 1968-03-01 1969-05-14 Ibm Deutschland Impulsfolgefrequenz-Diskriminator
FR2244177A1 (en, 2012) * 1973-09-17 1975-04-11 Buck Robert
DE2350514A1 (de) * 1973-10-09 1975-04-30 Endress Hauser Gmbh Co Schaltungsanordnung zur anzeige von frequenzaenderungen einer wechselspannung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2596871A1 (fr) * 1986-03-29 1987-10-09 Fichtel & Sachs Ag Commutateur de frequence
EP0350184A3 (en) * 1988-07-05 1990-12-05 International Business Machines Corporation Pulse train interruption sensing circuit
EP0872739A3 (en) * 1997-04-16 1999-05-06 Nec Corporation Frequency detection circuit
US6043749A (en) * 1997-04-16 2000-03-28 Nec Corporation Frequency detection circuit

Also Published As

Publication number Publication date
JPS55109968A (en) 1980-08-23
DE3005713A1 (de) 1980-09-04
GB2045558A (en) 1980-10-29
US4322642A (en) 1982-03-30
DE3005713C2 (de) 1986-03-27
GB2045558B (en) 1983-05-11
FR2449286B1 (en, 2012) 1984-03-16

Similar Documents

Publication Publication Date Title
FR2449286A1 (fr) Circuit discriminateur de frequence et procede d'utilisation
US4837727A (en) Road surface detecting device for vehicle
FR2448076A1 (fr) Systeme de transmission automatique pourvu d'une fonction de frein moteur
US4821189A (en) Method for the damping force adjustment of motor vehicles as a function of output signals of a transmitter arranged at the vehicle body
SE440535B (sv) Elektronisk motorknackningsdetekterande anordning
FR2355687A1 (fr) Dispositif electronique de regulation de vitesse
FR2444275A1 (fr) Systeme pour indiquer la vitesse aerodynamique d'un helicoptere
EP0738901A3 (en) Doppler-effect vehicle speed sensor using different speed determining rules depending upon receiver output
FR2365780A1 (fr) Procede et dispositif de detection d'usure des paliers d'un arbre rotatif, et arbre pourvu d'un tel dispositif
KR920703373A (ko) 스피드 센서의 출력 신호 편집을 위한 회로 구성
FR2417775A1 (fr) Systeme avertisseur de depassement de vitesse pour vehicules automobiles
KR970065263A (ko) 자동차용 노면 상태 검출 시스템
US4584978A (en) Method and apparatus for controlling spark timing in internal combustion engines
FR2457976A1 (fr) Dispositif de limitation de vitesse d'un moteur a combustion interne
JP2679533B2 (ja) ドップラ式対地車速検出装置
KR100424551B1 (ko) 감도조절방법및장치
FR2385566A1 (fr) Equipement de regulation antiblocage
US4887456A (en) Knock detection system
FR2497166B1 (fr) Dispositif pour detecter un etat neutre d'une transmission pour un moteur de vehicule
SU1065789A1 (ru) Способ косвенного определени эксцентриситета воздушного зазора электрической машины
KR970009631B1 (ko) 회전속도감지기의 작용능력 모니터방법
JP2679527B2 (ja) 対地車速検出装置
FR2410739A1 (fr) Procede et systeme de mise en oeuvre d'un moteur a combustion interne selon un mode economique de croisiere
FR2406815A1 (fr) Dispositif detecteur de passage et poids d'un vehicule
KR900701586A (ko) 안티록크 제어 시스템

Legal Events

Date Code Title Description
ST Notification of lapse