KR910004018A - Telephone ringing detection circuit and method in TV - Google Patents
Telephone ringing detection circuit and method in TV Download PDFInfo
- Publication number
- KR910004018A KR910004018A KR1019890010292A KR890010292A KR910004018A KR 910004018 A KR910004018 A KR 910004018A KR 1019890010292 A KR1019890010292 A KR 1019890010292A KR 890010292 A KR890010292 A KR 890010292A KR 910004018 A KR910004018 A KR 910004018A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- telephone
- input
- mute
- telephone ring
- Prior art date
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
내용 없음.No content.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 본 발명의 회로도,1 is a circuit diagram of the present invention,
제2도는 본 발명에 따른 회로의 파형도,2 is a waveform diagram of a circuit according to the present invention;
제3도는 본 발명에 따른 회로의 흐름도.3 is a flow diagram of a circuit according to the invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890010292A KR920008626B1 (en) | 1989-07-20 | 1989-07-20 | Sensing circuit and method of telephone sound in tv |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890010292A KR920008626B1 (en) | 1989-07-20 | 1989-07-20 | Sensing circuit and method of telephone sound in tv |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910004018A true KR910004018A (en) | 1991-02-28 |
KR920008626B1 KR920008626B1 (en) | 1992-10-02 |
Family
ID=19288252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890010292A KR920008626B1 (en) | 1989-07-20 | 1989-07-20 | Sensing circuit and method of telephone sound in tv |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR920008626B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2285553B (en) * | 1993-12-17 | 1998-08-19 | Barry Clifford Guest | Tv calling device for telephone |
-
1989
- 1989-07-20 KR KR1019890010292A patent/KR920008626B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR920008626B1 (en) | 1992-10-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20020930 Year of fee payment: 11 |
|
LAPS | Lapse due to unpaid annual fee |