JPS3819524B1 - - Google Patents
Info
- Publication number
- JPS3819524B1 JPS3819524B1 JP1442661A JP1442661A JPS3819524B1 JP S3819524 B1 JPS3819524 B1 JP S3819524B1 JP 1442661 A JP1442661 A JP 1442661A JP 1442661 A JP1442661 A JP 1442661A JP S3819524 B1 JPS3819524 B1 JP S3819524B1
- 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.)
- Pending
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL254957 | 1960-08-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS3819524B1 true JPS3819524B1 (ja) | 1963-09-26 |
Family
ID=19752526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1442661A Pending JPS3819524B1 (ja) | 1960-08-17 | 1961-04-22 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS3819524B1 (ja) |
| SE (1) | SE308136B (ja) |
-
1961
- 1961-04-22 JP JP1442661A patent/JPS3819524B1/ja active Pending
- 1961-08-14 SE SE8209/61A patent/SE308136B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE308136B (ja) | 1969-02-03 |