KR900017339A - Telephone Calling Device - Google Patents
Telephone Calling Device Download PDFInfo
- Publication number
- KR900017339A KR900017339A KR1019890005062A KR890005062A KR900017339A KR 900017339 A KR900017339 A KR 900017339A KR 1019890005062 A KR1019890005062 A KR 1019890005062A KR 890005062 A KR890005062 A KR 890005062A KR 900017339 A KR900017339 A KR 900017339A
- Authority
- KR
- South Korea
- Prior art keywords
- unit
- signal
- subscriber
- received
- audible signal
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/82—Line monitoring circuits for call progress or status discrimination
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Sub-Exchange Stations And Push- Button Telephones (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 전화자동호출 연결장치에 대한 본 발명의 블럭 구성도.1 is a block diagram of the present invention for an automatic telephone call connection device.
제2도는 제1도를 설명하기 위한 본 발명의 상세 회로도.2 is a detailed circuit diagram of the present invention for explaining FIG.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 착신가입자 20 : 링(Ring)신호 감지부10: incoming subscriber 20: ring signal detection unit
30 : 루우프(Loop)수신부 40 : 자체루우프수신부30: Loop receiver 40: Self loop receiver
50 : 비지(Busy)신호감지부 60 : 릴레이복구부50: Busy signal detection unit 60: Relay recovery unit
70 : 아나운서먼트 80 : 토운(tone)발생부70: announcer 80: tone generating unit
90 : 전화기 100 : 발신가입자90: telephone 100: calling party
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890005062A KR920001409B1 (en) | 1989-04-18 | 1989-04-18 | Telephone Calling Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019890005062A KR920001409B1 (en) | 1989-04-18 | 1989-04-18 | Telephone Calling Device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900017339A true KR900017339A (en) | 1990-11-16 |
KR920001409B1 KR920001409B1 (en) | 1992-02-13 |
Family
ID=19285426
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019890005062A KR920001409B1 (en) | 1989-04-18 | 1989-04-18 | Telephone Calling Device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR920001409B1 (en) |
-
1989
- 1989-04-18 KR KR1019890005062A patent/KR920001409B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR920001409B1 (en) | 1992-02-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19890418 |
|
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 19890418 Comment text: Request for Examination of Application |
|
PG1501 | Laying open of application | ||
G160 | Decision to publish patent application | ||
PG1605 | Publication of application before grant of patent |
Comment text: Decision on Publication of Application Patent event code: PG16051S01I Patent event date: 19920113 |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 19920422 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 19920723 Patent event code: PR07011E01D |
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PR1002 | Payment of registration fee |
Payment date: 19920723 End annual number: 3 Start annual number: 1 |
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PR1001 | Payment of annual fee |
Payment date: 19950213 Start annual number: 4 End annual number: 4 |
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PR1001 | Payment of annual fee |
Payment date: 19960201 Start annual number: 5 End annual number: 5 |
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PR1001 | Payment of annual fee |
Payment date: 19970117 Start annual number: 6 End annual number: 6 |
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FPAY | Annual fee payment |
Payment date: 19980206 Year of fee payment: 7 |
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PR1001 | Payment of annual fee |
Payment date: 19980206 Start annual number: 7 End annual number: 7 |
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LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |