Title:
PULSE DETECTOR
Document Type and Number:
Japanese Patent JPS56106162
Kind Code:
A
Abstract:
PURPOSE: To accurately separate and take out pulses of forward and backward revolutions by generating two phases of pulses of mutually different phase relations according to the revolutions of a rotator and logically processing these pulses.
CONSTITUTION: Two phases of pulses A, B of mutually different phase relations according to the revolutions of a rotator are inputted to exclusive OR gates 21, 22 and a delay circuit 23. The outputs of the exclusive OR gates 21, 22 are inputted to AND gates 24, 26, and an inverter 25. The output of the AND gate 24 is generated only at the forward revolution, while the output of the AND gate 26 is generated only at the backward revolution.
Inventors:
TSUKUDA YOSHIHIRO
Application Number:
JP832980A
Publication Date:
August 24, 1981
Filing Date:
January 29, 1980
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
G01R11/56; G01P13/04; (IPC1-7): G01P13/04; G01R11/00
Domestic Patent References:
| JP54028454B |
Previous Patent: JPS56106161
Next Patent: OUTPUT FLUCTUATION REMOVING CIRCUIT OF FEEDBACK TYPE NONCONTACT ELECTROMETER
Next Patent: OUTPUT FLUCTUATION REMOVING CIRCUIT OF FEEDBACK TYPE NONCONTACT ELECTROMETER