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1. WO1996031755 - TRANSITION DETECTION CIRCUIT

Publication Number WO/1996/031755
Publication Date 10.10.1996
International Application No. PCT/JP1996/000585
International Filing Date 08.03.1996
IPC
G01D 5/245 2006.01
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
244influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
245using a variable number of pulses in a train
G01P 3/486 2006.01
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
3Measuring linear or angular speed; Measuring differences of linear or angular speeds
42Devices characterised by the use of electric or magnetic means
44for measuring angular speed
48by measuring frequency of generated current or voltage
481of pulse signals
486delivered by photo-electric detectors
G01P 13/00 2006.01
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
13Indicating or recording presence or absence of movement; Indicating or recording of direction of movement
CPC
G01D 5/244
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
244influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
G01D 5/2451
GPHYSICS
01MEASURING; TESTING
DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12using electric or magnetic means
244influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
245using a variable number of pulses in a train
2451Incremental encoders
G01P 13/00
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
13Indicating or recording presence, absence, or direction, of movement
G01P 3/486
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
3Measuring linear or angular speed; Measuring differences of linear or angular speeds
42Devices characterised by the use of electric or magnetic means
44for measuring angular speed
48by measuring frequency of generated current or voltage
481of pulse signals
486delivered by photo-electric detectors
Applicants
  • THE NIPPON SIGNAL CO., LTD. [JP]/[JP] (AllExceptUS)
  • FUTSUHARA, Koichi [JP]/[JP] (UsOnly)
  • SHIRAI, Toshihito [JP]/[JP] (UsOnly)
Inventors
  • FUTSUHARA, Koichi
  • SHIRAI, Toshihito
Agents
  • ABE, Yoshijiro
Priority Data
PCT/JP95/0067506.04.1995JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) TRANSITION DETECTION CIRCUIT
(FR) CIRCUIT DE DETECTION DE TRANSITION
Abstract
(EN)
A detector (1) outputs a signal e1 corresponding to the operation of an object having an operation characteristic in which a transition from a first state to a second state occurs. A first state detection circuit (2) generates a first output signal SA corresponding to the first state on the basis of the signal e1 supplied thereto from the detector (1). A second state detection circuit (3) generates a second output signal SB corresponding to the second state on the basis of the signal supplied thereto from the detector (1). The second output signal SB is generated only when a transition occurs normally from the first state to the second state and during the period in which the first output signal SA is active. A state judgement circuit (4) generates a state judgement output signal Z under the condition that both of the first and second output signals SA and SB have a period in which they are simultaneously at a high level.
(FR)
Un détecteur (1) sort un signal e1 correspondant au fonctionnement d'un objet ayant une caractéristique où s'opère une transition d'un premier état à un second état. Un circuit de détection de premier état (2) génère un premier signal de sortie SA correspondant au premier état sur la base du signal e1 fourni à partir du détecteur (1). Un circuit de détection de second état (3) génère un deuxième signal de sortie SB correspondant au second état sur la base du signal fourni à partir du détecteur (1). Le deuxième signal de sortie SB n'est généré que lorsqu'une transition se produit normalement du premier au second état et pendant la période au cours de laquelle le premier signal de sortie SA est actif. Un circuit de jugement d'état (4) génère un signal de sortie de jugement d'état Z à condition que les deux premiers et deuxièmes signaux de sortie SA et SB présentent une période où ils se trouvent simultanément à un haut niveau.
Also published as
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