NL74579C - - Google Patents
Info
- Publication number
- NL74579C NL74579C NL74579DA NL74579C NL 74579 C NL74579 C NL 74579C NL 74579D A NL74579D A NL 74579DA NL 74579 C NL74579 C NL 74579C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/16—Monitoring arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
- H03F1/542—Replacing by standby devices
-
- 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
- H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB268701X | 1942-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL74579C true NL74579C (en:Method) |
Family
ID=10250498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL74579D NL74579C (en:Method) | 1942-12-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2364389A (en:Method) |
| BE (1) | BE467630A (en:Method) |
| CH (1) | CH268701A (en:Method) |
| FR (1) | FR939157A (en:Method) |
| GB (1) | GB562392A (en:Method) |
| NL (1) | NL74579C (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429613A (en) * | 1943-10-19 | 1947-10-28 | Standard Telephones Cables Ltd | Pulse multiplex communication system |
| US2429775A (en) * | 1944-06-22 | 1947-10-28 | Rca Corp | Amplifier system |
-
0
- BE BE467630D patent/BE467630A/xx unknown
- NL NL74579D patent/NL74579C/xx active
-
1942
- 1942-12-24 GB GB18319/42A patent/GB562392A/en not_active Expired
-
1943
- 1943-11-29 US US512174A patent/US2364389A/en not_active Expired - Lifetime
-
1946
- 1946-04-26 FR FR939157D patent/FR939157A/fr not_active Expired
- 1946-08-22 CH CH268701D patent/CH268701A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2364389A (en) | 1944-12-05 |
| FR939157A (fr) | 1948-11-05 |
| CH268701A (fr) | 1950-05-31 |
| BE467630A (en:Method) | |
| GB562392A (en) | 1944-06-29 |