KR940010596A - Electronic dial signal and call tone generator circuit of key phone system - Google Patents
Electronic dial signal and call tone generator circuit of key phone system Download PDFInfo
- Publication number
- KR940010596A KR940010596A KR1019920020023A KR920020023A KR940010596A KR 940010596 A KR940010596 A KR 940010596A KR 1019920020023 A KR1019920020023 A KR 1019920020023A KR 920020023 A KR920020023 A KR 920020023A KR 940010596 A KR940010596 A KR 940010596A
- Authority
- KR
- South Korea
- Prior art keywords
- dial signal
- generating
- call tone
- frequency
- electronic dial
- Prior art date
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- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
Abstract
본 발명은 다이얼신호 및 통화신호음을 발생시키는 회로에 관한 것으로, 특히 기존의 키폰전화기에 설치되어 있는 전자식 다이얼신호송출을 위한 DTMF발생기를 이용하여 다이얼신호 및 통화신호음을 함께 발생시킬 수 있도록 된 키폰시스템의 전자식 다이얼신호 및 통화신호음발생 회로에 관한 것이다.The present invention relates to a circuit for generating a dial signal and a call tone, and in particular, a keyphone system capable of generating a dial signal and a call tone together using a DTMF generator for transmitting an electronic dial signal installed in an existing key phone telephone. The present invention relates to an electronic dial signal and a call tone generating circuit.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명에 따른 전자식 다이얼신호 및 통화신호음 발생회로이다.1 is an electronic dial signal and a call tone generating circuit according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920020023A KR940010596A (en) | 1992-10-29 | 1992-10-29 | Electronic dial signal and call tone generator circuit of key phone system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920020023A KR940010596A (en) | 1992-10-29 | 1992-10-29 | Electronic dial signal and call tone generator circuit of key phone system |
Publications (1)
Publication Number | Publication Date |
---|---|
KR940010596A true KR940010596A (en) | 1994-05-26 |
Family
ID=67210509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920020023A KR940010596A (en) | 1992-10-29 | 1992-10-29 | Electronic dial signal and call tone generator circuit of key phone system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940010596A (en) |
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1992
- 1992-10-29 KR KR1019920020023A patent/KR940010596A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |