JPS5622179B2 - - Google Patents
Info
- Publication number
- JPS5622179B2 JPS5622179B2 JP15765377A JP15765377A JPS5622179B2 JP S5622179 B2 JPS5622179 B2 JP S5622179B2 JP 15765377 A JP15765377 A JP 15765377A JP 15765377 A JP15765377 A JP 15765377A JP S5622179 B2 JPS5622179 B2 JP S5622179B2
- 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
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15765377A JPS5489404A (en) | 1977-12-27 | 1977-12-27 | Amplifier for telephone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15765377A JPS5489404A (en) | 1977-12-27 | 1977-12-27 | Amplifier for telephone set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5489404A JPS5489404A (en) | 1979-07-16 |
| JPS5622179B2 true JPS5622179B2 (es) | 1981-05-23 |
Family
ID=15654418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15765377A Granted JPS5489404A (en) | 1977-12-27 | 1977-12-27 | Amplifier for telephone set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5489404A (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57139476U (es) * | 1981-02-26 | 1982-08-31 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49106704A (es) * | 1973-02-10 | 1974-10-09 | ||
| JPS5220104B2 (es) * | 1972-11-17 | 1977-06-01 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5525585Y2 (es) * | 1975-07-30 | 1980-06-19 |
-
1977
- 1977-12-27 JP JP15765377A patent/JPS5489404A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220104B2 (es) * | 1972-11-17 | 1977-06-01 | ||
| JPS49106704A (es) * | 1973-02-10 | 1974-10-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5489404A (en) | 1979-07-16 |