KR900012465A - Unpaid Phone Answering Power Supply - Google Patents
Unpaid Phone Answering Power Supply Download PDFInfo
- Publication number
- KR900012465A KR900012465A KR1019890000377A KR890000377A KR900012465A KR 900012465 A KR900012465 A KR 900012465A KR 1019890000377 A KR1019890000377 A KR 1019890000377A KR 890000377 A KR890000377 A KR 890000377A KR 900012465 A KR900012465 A KR 900012465A
- Authority
- KR
- South Korea
- Prior art keywords
- power supply
- unpaid
- phone answering
- answering power
- phone
- Prior art date
Links
Landscapes
- Devices For Supply Of Signal Current (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 무급전전화응답 전원부를 기존전화 선로에 연결한 예시도로, 여기서B는 전화기의 호출 벨(Bell)회로, C3는 벨 회로에 호출신호음만 통과시키기 위한 캐패시턴스, C1은 C3와 같이 호출신호음 통과용 캐패시턴스, R1은 전류제한용 저항 D1는 정류용 다이오드, C2는 정류전원 저장용 캐패시턴스, L1 및 L2는 가입전화 선로를 표시한 것이다.FIG. 1 is an exemplary diagram in which the unpaid telephone answering power unit is connected to an existing telephone line, where B is a call bell circuit of a telephone, C3 is a capacitance for passing only a ring tone to a bell circuit, and C1 is called as C3. The signal transmissive capacitance, R1 is the current limiting resistor D1 is the rectifier diode, C2 is the rectifier power storage capacitance, and L1 and L2 are the subscribing telephone lines.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890000377A KR900012465A (en) | 1989-01-16 | 1989-01-16 | Unpaid Phone Answering Power Supply |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890000377A KR900012465A (en) | 1989-01-16 | 1989-01-16 | Unpaid Phone Answering Power Supply |
Publications (1)
Publication Number | Publication Date |
---|---|
KR900012465A true KR900012465A (en) | 1990-08-04 |
Family
ID=68051280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890000377A KR900012465A (en) | 1989-01-16 | 1989-01-16 | Unpaid Phone Answering Power Supply |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900012465A (en) |
-
1989
- 1989-01-16 KR KR1019890000377A patent/KR900012465A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |