ES8202440A1 - Un detector dinamico de umbral - Google Patents

Un detector dinamico de umbral

Info

Publication number
ES8202440A1
ES8202440A1 ES499032A ES499032A ES8202440A1 ES 8202440 A1 ES8202440 A1 ES 8202440A1 ES 499032 A ES499032 A ES 499032A ES 499032 A ES499032 A ES 499032A ES 8202440 A1 ES8202440 A1 ES 8202440A1
Authority
ES
Spain
Prior art keywords
detector
diodes
signal
potentiometer
threshold detector
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
ES499032A
Other languages
English (en)
Other versions
ES499032A0 (es
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.)
RJ Reynolds Tobacco Co
Original Assignee
RJ Reynolds Tobacco Co
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 RJ Reynolds Tobacco Co filed Critical RJ Reynolds Tobacco Co
Publication of ES499032A0 publication Critical patent/ES499032A0/es
Publication of ES8202440A1 publication Critical patent/ES8202440A1/es
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

CIRCUITO DE SEGUIMIENTO DINAMICO DEL PUNTO MEDIO DE LAS OSCILACIONES DE UNA SEÑAL ANALOGICA, CON REPRODUCCION BINARIA DE DICHAS VARIACION. COMPRENDE UN CIRCUITO DETECTOR DE CRESTA Y PARTIDOR (52), AL QUE SE APLICA, A TRAVES DEL AMPLIFICADOR (44) Y LAS RESISTENCIAS (42, 46, 50) LA SEÑAL ANALOGICA (20). LA TENSION DE SALIDA (58) ES EL VALOR DE PUNTO MEDIO DE LOS IMPULSOS POSITIVOS Y NEGATIVOS DE LA SEÑAL (20). DICHA TENSION SE APLICA AL AMPLIFICADOR COMPENSADOR (72), DE FACTOR DE AMPLIFICACION IGUAL A LA UNIDAD. LA TENSION (74) SE LLEVA, A TRAVES DE LA RESISTENCIA (78), A UN ATENUADOR (80) QUE DIVIDE LA AMPLITUD DE LA SEÑAL POR EL FACTOR DE AMPLIFICACION DEL AMPLIFICADOR (44).
ES499032A 1980-03-06 1981-02-02 Un detector dinamico de umbral Expired ES8202440A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12767380A 1980-03-06 1980-03-06

Publications (2)

Publication Number Publication Date
ES499032A0 ES499032A0 (es) 1982-01-16
ES8202440A1 true ES8202440A1 (es) 1982-01-16

Family

ID=22431321

Family Applications (1)

Application Number Title Priority Date Filing Date
ES499032A Expired ES8202440A1 (es) 1980-03-06 1981-02-02 Un detector dinamico de umbral

Country Status (6)

Country Link
EP (1) EP0036950A1 (es)
JP (1) JPS56140468A (es)
AU (1) AU6569380A (es)
DK (1) DK86581A (es)
ES (1) ES8202440A1 (es)
PT (1) PT72612B (es)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810270A (ja) * 1981-07-13 1983-01-20 Mekano Kk バ−コ−ドリ−ダ−読取り信号変換回路
GB2143636A (en) * 1983-07-22 1985-02-13 Stephen Kenneth Buss A circuit arrangement and method for detecting markers in a microfilm scanner
US6082621A (en) * 1992-04-02 2000-07-04 Symbol Technologies, Inc. Interface between threshold processing digitizer for bar code reader
US5734152A (en) * 1995-05-31 1998-03-31 Symbol Technologies, Inc. Optical scanners and signal processors therefor
US6164540A (en) 1996-05-22 2000-12-26 Symbol Technologies, Inc. Optical scanners
US6170749B1 (en) 1995-05-31 2001-01-09 Symbol Technologies, Inc. Method of scanning indicia using selective sampling
AU6267294A (en) * 1993-02-02 1994-08-29 Label Vision Systems, Inc. Method and apparatus for decoding bar code data from a video signal and applications thereof
US5317166A (en) * 1993-02-23 1994-05-31 Psc Inc. A system for decoding bar coded labels upon different size containers
EP0677227A4 (en) * 1993-09-02 1996-06-26 Kiwisoft Programs Ltd VIDEO CAMERA FOR RECORDING LABELED ARTICLES.
US6525531B2 (en) 1996-01-17 2003-02-25 Allegro, Microsystems, Inc. Detection of passing magnetic articles while adapting the detection threshold
US6297627B1 (en) 1996-01-17 2001-10-02 Allegro Microsystems, Inc. Detection of passing magnetic articles with a peak-to-peak percentage threshold detector having a forcing circuit and automatic gain control
US6242908B1 (en) 1996-01-17 2001-06-05 Allegro Microsystems, Inc. Detection of passing magnetic articles while adapting the detection threshold
US5917320A (en) * 1996-01-17 1999-06-29 Allegro Microsystems, Inc. Detection of passing magnetic articles while periodically adapting detection threshold
AU6187998A (en) * 1997-03-07 1998-09-22 Accu-Sort Systems, Inc. Symbology scanning system for efficiently locating coded symbologies
US6135354A (en) * 1997-09-07 2000-10-24 Label Vision Systems, Inc. System and method for facilitating high speed processing of video signals containing images of barcode labels
US6191576B1 (en) 1998-06-30 2001-02-20 Honeywell Inc. Method of operating or constructing a geartooth sensor
DE19853084A1 (de) * 1998-11-18 2000-05-25 Schlafhorst & Co W Verfahren und Vorrichtung zur berührungslosen Drehzahlmessung eines rotierenden Körpers
US6373045B1 (en) 1999-06-29 2002-04-16 Infineon Technologies North America Corp. High speed optocoupler detector
US6914451B2 (en) 2001-10-17 2005-07-05 Optillion Operations Ab Adaptive level binary logic
US7506816B2 (en) * 2004-10-04 2009-03-24 Datalogic Scanning, Inc. System and method for determining a threshold for edge detection based on an undifferentiated equalized scan line signal
US7362094B2 (en) 2006-01-17 2008-04-22 Allegro Microsystems, Inc. Methods and apparatus for magnetic article detection
US8598867B2 (en) 2010-06-04 2013-12-03 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a motion detector
US9520871B2 (en) 2012-01-05 2016-12-13 Allegro Microsystems, Llc Methods and apparatus for supply voltage transient protection for maintaining a state of a sensor output signal
US8723512B1 (en) 2012-11-26 2014-05-13 Allegro Microsystems, Llc Circuits and methods for generating a threshold signal used in a magnetic field sensor based on a peak signal associated with a prior cycle of a magnetic field signal
JP6168762B2 (ja) * 2012-12-14 2017-07-26 キヤノン株式会社 アブソリュートエンコーダ
EP3611515B1 (en) 2013-08-30 2022-06-01 Allegro MicroSystems, LLC Circuits and methods for generating a threshold signal used in a motion detector
EP3117187B1 (en) 2014-03-11 2018-06-13 Allegro MicroSystems, LLC Magnetic field sensor maintaining a minimal separation of thresholds, and corresponding sensing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3909594A (en) * 1973-12-26 1975-09-30 Interface Mechanisms Inc Circuit for establishing a reference voltage in bar code readers

Also Published As

Publication number Publication date
AU6569380A (en) 1981-09-10
PT72612A (en) 1981-04-01
ES499032A0 (es) 1982-01-16
JPS56140468A (en) 1981-11-02
DK86581A (da) 1981-09-07
PT72612B (en) 1982-03-18
EP0036950A1 (en) 1981-10-07

Similar Documents

Publication Publication Date Title
ES8202440A1 (es) Un detector dinamico de umbral
MX9605108A (es) Metodo y aparato para el control automatico de ganancia en un receptor digital.
ES8500530A1 (es) Un dispositivo de conversion de analogico en digital.
ATE27080T1 (de) Digitaler dynamikbereichumsetzer.
SE8008417L (sv) Matning av telefonlinjer
GB1525498A (en) Receiver for binary pulse signals
ES8306835A1 (es) Circuito de deteccion de estado de senal con nivel de umbralautoajustable
US3249870A (en) Delta modulation signal transmission system
KR890004531A (ko) 송신기 회로, 전압-전류변환기 회로 및 전류 증폭기 회로
GB1526636A (en) Circuit for automatic dynamic compression or expansion
US2817708A (en) Amplifier with tremolo
GB1386923A (en) Transmitting apparatus for generating converting and transmitting signals and receiving apparatus for use therewith
DE3885746D1 (de) Schaltungsanordnung mit einem an einen opto-elektrischen Wandler angeschlossenen Verstärker.
GB1197509A (en) Pulse Delta Modulation Transmission System and Transmitters and Receivers to be Used in Said System
JPS55156475A (en) Binary-coder for analog signal
MY100607A (en) Transmitter with an improved span adjustment.
ES8601621A1 (es) Perfeccionamientos introducidos en un dispositivo de tratamiento de senales de video
US4039949A (en) Pulse code modulation with dynamic range limiting
GB773470A (en) Improvements in or relating to detector-circuit arrangements
GB938382A (en) F.m. modulator with a.f.c.
GB1161002A (en) Improvements in and relating to Hearing Aids
US3836856A (en) System for limiting the range of a-c signals
ATE22514T1 (de) Differenzpulskodemodulationsuebertragungssystem.
ES8308175A1 (es) Un aparato receptor de frecuencia modulada.
JPS57152726A (en) A/d converting circuit