NL10539C - - Google Patents
Info
- Publication number
- NL10539C NL10539C NL10539DA NL10539C NL 10539 C NL10539 C NL 10539C NL 10539D A NL10539D A NL 10539DA NL 10539 C NL10539 C NL 10539C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/36—Repeater circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US314547A US1603319A (en) | 1919-07-31 | 1919-07-31 | Telephone repeater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL10539C true NL10539C (xx) |
Family
ID=23220384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL10539D NL10539C (xx) | 1919-07-31 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1603319A (xx) |
| DE (1) | DE454207C (xx) |
| FR (1) | FR521218A (xx) |
| GB (1) | GB149331A (xx) |
| NL (1) | NL10539C (xx) |
-
0
- NL NL10539D patent/NL10539C/xx active
-
1919
- 1919-07-31 US US314547A patent/US1603319A/en not_active Expired - Lifetime
-
1920
- 1920-07-19 GB GB21684/20A patent/GB149331A/en not_active Expired
- 1920-07-25 DE DEB95257D patent/DE454207C/de not_active Expired
- 1920-07-27 FR FR521218A patent/FR521218A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1603319A (en) | 1926-10-19 |
| DE454207C (de) | 1928-01-03 |
| FR521218A (fr) | 1921-07-08 |
| GB149331A (en) | 1921-09-22 |