JPS576741B2 - - Google Patents
Info
- Publication number
- JPS576741B2 JPS576741B2 JP10266776A JP10266776A JPS576741B2 JP S576741 B2 JPS576741 B2 JP S576741B2 JP 10266776 A JP10266776 A JP 10266776A JP 10266776 A JP10266776 A JP 10266776A JP S576741 B2 JPS576741 B2 JP S576741B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- H04M19/026—Arrangements for interrupting the ringing current
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10266776A JPS5328317A (en) | 1976-08-30 | 1976-08-30 | Control system of subscriber's calling signal |
| US05/828,671 US4145577A (en) | 1976-08-30 | 1977-08-29 | Ringing control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10266776A JPS5328317A (en) | 1976-08-30 | 1976-08-30 | Control system of subscriber's calling signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5328317A JPS5328317A (en) | 1978-03-16 |
| JPS576741B2 true JPS576741B2 (US06826419-20041130-M00005.png) | 1982-02-06 |
Family
ID=14333573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10266776A Granted JPS5328317A (en) | 1976-08-30 | 1976-08-30 | Control system of subscriber's calling signal |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4145577A (US06826419-20041130-M00005.png) |
| JP (1) | JPS5328317A (US06826419-20041130-M00005.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0231846U (US06826419-20041130-M00005.png) * | 1988-08-19 | 1990-02-28 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54154205A (en) * | 1978-05-26 | 1979-12-05 | Toshiba Corp | Transmission system of ringing signal |
| US4273964A (en) * | 1978-09-21 | 1981-06-16 | Motek Szpindel | Ring and tone plant |
| CA1114536A (en) * | 1978-12-11 | 1981-12-15 | William B. Kiss | Ringing generator |
| US4298774A (en) * | 1979-05-02 | 1981-11-03 | Gte Automatic Electric Labs Inc. | Call waiting signal arrangement |
| US4221897A (en) * | 1979-05-09 | 1980-09-09 | General Electric Company | Method for making polyetheramide acid |
| JPS56165451A (en) * | 1980-05-24 | 1981-12-19 | Oki Electric Ind Co Ltd | Control circuit of call signal |
| JPS57162862A (en) * | 1981-03-31 | 1982-10-06 | Fujitsu Ltd | Callout signal control system |
| US4590331A (en) * | 1984-03-13 | 1986-05-20 | Security Systems Internationale, Inc. | Hostage negotiation telephone system |
| SE459138B (sv) * | 1987-10-08 | 1989-06-05 | Ericsson Telefon Ab L M | Anordning i ett telekommunikationssystem vid inkoppling och urkoppling av en ringsignal |
| JP4192856B2 (ja) * | 2004-07-07 | 2008-12-10 | ブラザー工業株式会社 | 通信装置，回線閉結方法およびプログラム |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3551604A (en) * | 1969-02-26 | 1970-12-29 | Bell Telephone Labor Inc | Immediate ringing in a step-by-step telephone system |
-
1976
- 1976-08-30 JP JP10266776A patent/JPS5328317A/ja active Granted
-
1977
- 1977-08-29 US US05/828,671 patent/US4145577A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0231846U (US06826419-20041130-M00005.png) * | 1988-08-19 | 1990-02-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4145577A (en) | 1979-03-20 |
| JPS5328317A (en) | 1978-03-16 |
