JPS6463814A - Signal processor for electromagnetic pickup - Google Patents
Signal processor for electromagnetic pickupInfo
- Publication number
- JPS6463814A JPS6463814A JP22136187A JP22136187A JPS6463814A JP S6463814 A JPS6463814 A JP S6463814A JP 22136187 A JP22136187 A JP 22136187A JP 22136187 A JP22136187 A JP 22136187A JP S6463814 A JPS6463814 A JP S6463814A
- Authority
- JP
- Japan
- Prior art keywords
- reference voltage
- voltage
- main body
- comparator
- signal
- 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
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
PURPOSE:To prevent the occurrence of a false operation even when noise is mixed in an output voltage, by impressing a second reference voltage on a comparator during a period when the output voltage from the main body of a pickup exceeds a first reference voltage and thereafter falls down below the second reference voltage. CONSTITUTION:When the main body 13 of an engine is operated, an AC voltage signal VA from the main body 12a of a pickup is outputted to an input interface 14 of a signal processor 11 and inputted to an inverted input terminal of a comparator OP. Then, during a period when the output signal voltage VA exceeds a reference voltage VS of a first reference voltage generating means 15a and thereafter falls down below a reference voltage of a second reference voltage generating means 15b, this reference voltage is inpressed on a noninverted input terminal of the comparator OP. By this constitution, a noise margin is enlarged, and the occurrence of a false operation is prevented even when noise is mixed in the voltage signal VA.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22136187A JPS6463814A (en) | 1987-09-03 | 1987-09-03 | Signal processor for electromagnetic pickup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22136187A JPS6463814A (en) | 1987-09-03 | 1987-09-03 | Signal processor for electromagnetic pickup |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6463814A true JPS6463814A (en) | 1989-03-09 |
JPH0525286B2 JPH0525286B2 (en) | 1993-04-12 |
Family
ID=16765587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22136187A Granted JPS6463814A (en) | 1987-09-03 | 1987-09-03 | Signal processor for electromagnetic pickup |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6463814A (en) |
-
1987
- 1987-09-03 JP JP22136187A patent/JPS6463814A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0525286B2 (en) | 1993-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 15 Free format text: PAYMENT UNTIL: 20080412 |