KR920002536B1 - Pwm을 이용한 음성다중 모우드 선택회로 - Google Patents
Pwm을 이용한 음성다중 모우드 선택회로 Download PDFInfo
- Publication number
- KR920002536B1 KR920002536B1 KR1019890014484A KR890014484A KR920002536B1 KR 920002536 B1 KR920002536 B1 KR 920002536B1 KR 1019890014484 A KR1019890014484 A KR 1019890014484A KR 890014484 A KR890014484 A KR 890014484A KR 920002536 B1 KR920002536 B1 KR 920002536B1
- Authority
- KR
- South Korea
- Prior art keywords
- microcomputer
- pwm
- voice multiple
- pulse
- voltage
- Prior art date
Links
- 238000007493 shaping process Methods 0.000 claims description 11
- 239000003990 capacitor Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Analogue/Digital Conversion (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims (1)
- 음성다중 모우드의 선택 키 입력을 체크하여 각기 다른 듀티의 PWM펄스를 출력시키는 마이콤(5)과, 상기 마이콤(5)의 PWM펄스 출력을 반전시키고 파형정형시키는 펄스 정형 수단과, 상기 펄스 정형 수단의 정형된 펄스를 직류 전압으로 변화시켜 음성다중 데코더에 음성다중 모우드 선택 전압으로 인가시키는 직류 전압 변환수단으로 구성된 PWM을 이용한 음성다중 모우드 선택회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890014484A KR920002536B1 (ko) | 1989-10-05 | 1989-10-05 | Pwm을 이용한 음성다중 모우드 선택회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890014484A KR920002536B1 (ko) | 1989-10-05 | 1989-10-05 | Pwm을 이용한 음성다중 모우드 선택회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910009079A KR910009079A (ko) | 1991-05-31 |
KR920002536B1 true KR920002536B1 (ko) | 1992-03-27 |
Family
ID=19290547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890014484A KR920002536B1 (ko) | 1989-10-05 | 1989-10-05 | Pwm을 이용한 음성다중 모우드 선택회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR920002536B1 (ko) |
-
1989
- 1989-10-05 KR KR1019890014484A patent/KR920002536B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR910009079A (ko) | 1991-05-31 |
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