NL38900C - - Google Patents
Info
- Publication number
- NL38900C NL38900C NL38900DA NL38900C NL 38900 C NL38900 C NL 38900C NL 38900D A NL38900D A NL 38900DA NL 38900 C NL38900 C NL 38900C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/78—Circuit arrangements in which low-frequency speech signals proceed in one direction on the line, while speech signals proceeding in the other direction on the line are modulated on a high-frequency carrier signal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE335108X | 1928-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL38900C true NL38900C (xx) |
Family
ID=6218946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL38900D NL38900C (xx) | 1928-11-10 |
Country Status (3)
| Country | Link |
|---|---|
| FR (4) | FR654656A (xx) |
| GB (1) | GB335108A (xx) |
| NL (1) | NL38900C (xx) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE919238C (de) * | 1942-06-24 | 1954-10-18 | Siemens Ag | Traegerfrequenzuebertragungssystem |
| US4713557A (en) * | 1984-09-26 | 1987-12-15 | Xilinx, Inc. | Bidirectional buffer amplifier |
| US4695740A (en) * | 1984-09-26 | 1987-09-22 | Xilinx, Inc. | Bidirectional buffer amplifier |
| US6664807B1 (en) | 2002-01-22 | 2003-12-16 | Xilinx, Inc. | Repeater for buffering a signal on a long data line of a programmable logic device |
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0
- NL NL38900D patent/NL38900C/xx active
-
1928
- 1928-05-24 FR FR654656D patent/FR654656A/fr not_active Expired
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1929
- 1929-11-09 FR FR37609D patent/FR37609E/fr not_active Expired
- 1929-11-09 GB GB34296/29A patent/GB335108A/en not_active Expired
-
1932
- 1932-07-06 FR FR42216D patent/FR42216E/fr not_active Expired
-
1933
- 1933-06-28 FR FR43820D patent/FR43820E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR42216E (fr) | 1933-06-15 |
| FR43820E (fr) | 1934-09-06 |
| GB335108A (en) | 1930-09-18 |
| FR654656A (fr) | 1929-04-08 |
| FR37609E (fr) | 1930-01-08 |