NL54983C - - Google Patents
Info
- Publication number
- NL54983C NL54983C NL54983DA NL54983C NL 54983 C NL54983 C NL 54983C NL 54983D A NL54983D A NL 54983DA NL 54983 C NL54983 C NL 54983C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/12—Arrangements for reducing cross-talk between channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US159667A US2142316A (en) | 1937-08-18 | 1937-08-18 | Multiplex multiline carrier system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL54983C true NL54983C (xx) |
Family
ID=22573475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL54983D NL54983C (xx) | 1937-08-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2142316A (xx) |
| FR (1) | FR842226A (xx) |
| GB (1) | GB517036A (xx) |
| NL (1) | NL54983C (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2528090A (en) * | 1943-09-14 | 1950-10-31 | Punch Engineering Pty Ltd | Means for changing the transmission carrier frequencies in multichannel signaling and communication systems |
| US4845756A (en) * | 1986-09-09 | 1989-07-04 | Siemens Aktiengesellschaft | Apparatus for through-connecting audio signals |
-
0
- NL NL54983D patent/NL54983C/xx active
-
1937
- 1937-08-18 US US159667A patent/US2142316A/en not_active Expired - Lifetime
-
1938
- 1938-07-15 GB GB21076/38A patent/GB517036A/en not_active Expired
- 1938-08-17 FR FR842226D patent/FR842226A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR842226A (fr) | 1939-06-08 |
| GB517036A (en) | 1940-01-18 |
| US2142316A (en) | 1939-01-03 |