KR910010281A - Key recognition device by PWM demodulation - Google Patents
Key recognition device by PWM demodulation Download PDFInfo
- Publication number
- KR910010281A KR910010281A KR1019890016300A KR890016300A KR910010281A KR 910010281 A KR910010281 A KR 910010281A KR 1019890016300 A KR1019890016300 A KR 1019890016300A KR 890016300 A KR890016300 A KR 890016300A KR 910010281 A KR910010281 A KR 910010281A
- Authority
- KR
- South Korea
- Prior art keywords
- key
- recognition device
- comparator com
- key recognition
- microcomputer
- Prior art date
Links
Landscapes
- Manipulation Of Pulses (AREA)
Abstract
내용 없음No content
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명의 회로도,1 is a circuit diagram of the present invention,
제2도는 본 발명의 동작 파형도,2 is an operational waveform diagram of the present invention,
제3도는 본 발명의 흐름도.3 is a flow chart of the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890016300A KR910010281A (en) | 1989-11-10 | 1989-11-10 | Key recognition device by PWM demodulation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890016300A KR910010281A (en) | 1989-11-10 | 1989-11-10 | Key recognition device by PWM demodulation |
Publications (1)
Publication Number | Publication Date |
---|---|
KR910010281A true KR910010281A (en) | 1991-06-29 |
Family
ID=67660948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890016300A KR910010281A (en) | 1989-11-10 | 1989-11-10 | Key recognition device by PWM demodulation |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910010281A (en) |
-
1989
- 1989-11-10 KR KR1019890016300A patent/KR910010281A/en not_active Application Discontinuation
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR920003654A (en) | Semiconductor integrated circuit device | |
KR880014727A (en) | PWM inverter device | |
KR910006614A (en) | Engine preheater | |
KR910007388A (en) | Control circuit | |
KR890004505A (en) | A / D Converter | |
KR840001015A (en) | Variable electronic impedance circuit device | |
KR910010281A (en) | Key recognition device by PWM demodulation | |
KR890007486A (en) | Motor Drive Power Supply | |
KR920009033A (en) | Discrete current source whose output decreases with increasing control voltage | |
KR880000758A (en) | Temperature controller for chiller | |
KR920005509A (en) | Key matrix circuit | |
SU871332A1 (en) | Delay device | |
KR860003525Y1 (en) | Reset circuit of micro computer | |
SU1396246A1 (en) | One-shot multivibrator | |
KR860006728A (en) | Microprocessor Reset Circuit | |
SU1319095A1 (en) | Control device for inductive load | |
SU725230A1 (en) | Switch | |
KR880008704A (en) | Discharge lamp lighting device | |
KR930009318A (en) | Zero cross detection circuit of ring signal | |
KR890015504A (en) | Continuous Synchronous Pulse Generator Circuit | |
KR930011029A (en) | Arc-discharge erasing circuit of contact | |
KR890010646A (en) | Timer output outlet control circuit and its control method | |
KR890006028A (en) | Subscriber line interface circuit without transformer | |
KR930018820A (en) | Switching mode power supply protection circuit | |
KR910008535A (en) | Run Away Prevention Circuit of Microprocessor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |