JPS5422722B2 - - Google Patents
Info
- Publication number
- JPS5422722B2 JPS5422722B2 JP9283875A JP9283875A JPS5422722B2 JP S5422722 B2 JPS5422722 B2 JP S5422722B2 JP 9283875 A JP9283875 A JP 9283875A JP 9283875 A JP9283875 A JP 9283875A JP S5422722 B2 JPS5422722 B2 JP S5422722B2
- 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
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9283875A JPS5216106A (en) | 1975-07-29 | 1975-07-29 | Telephone call unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9283875A JPS5216106A (en) | 1975-07-29 | 1975-07-29 | Telephone call unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5216106A JPS5216106A (en) | 1977-02-07 |
| JPS5422722B2 true JPS5422722B2 (un) | 1979-08-08 |
Family
ID=14065562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9283875A Granted JPS5216106A (en) | 1975-07-29 | 1975-07-29 | Telephone call unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5216106A (un) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6256315B2 (un) * | 1981-09-16 | 1987-11-25 | Ooi Seisakusho Kk | |
| JPH0315728Y2 (un) * | 1981-08-29 | 1991-04-05 |
-
1975
- 1975-07-29 JP JP9283875A patent/JPS5216106A/ja active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0315728Y2 (un) * | 1981-08-29 | 1991-04-05 | ||
| JPS6256315B2 (un) * | 1981-09-16 | 1987-11-25 | Ooi Seisakusho Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5216106A (en) | 1977-02-07 |