Title:
MALFUNCTION PREVENTING CIRCUIT FOR FREQUENCY JUDGING CIRCUIT
Document Type and Number:
Japanese Patent JPS6337264
Kind Code:
A
Abstract:
PURPOSE: To accurately discriminate the frequency state of the rectangular wave of an input signal, by coupling the output signal of a monomultivibrator and the output signal of D.FF2 by an NAND or AND gate.
CONSTITUTION: The output signal of a monostablemultivibrator 1 and the output signal of D.FF2 are coupled by an AND gate 3. In the output state of this AND gate 3, it is discriminated whether the frequency of the rectangular wave of an input signal is higher or lower than the reference value set by the monomultivibrator 1. The output signal of D.FF
More Like This:
| JPS57125855 | FREQUENCY DISCRIMINATING CIRCUIT |
| JPS5537027 | FREQUENCY DISCRIMINATING CIRCUIT |
| JPS57175964 | FREQUENCY DETECTOR |
Inventors:
IMAI MAKOTO
Application Number:
JP18051686A
Publication Date:
February 17, 1988
Filing Date:
July 31, 1986
Export Citation:
Assignee:
JAPAN ENGINE VALVE MFG
International Classes:
G01R23/15; (IPC1-7): G01R23/15
Domestic Patent References:
| JPS57203962A | 1982-12-14 |