BE501549A - - Google Patents
Info
- Publication number
- BE501549A BE501549A BE501549DA BE501549A BE 501549 A BE501549 A BE 501549A BE 501549D A BE501549D A BE 501549DA BE 501549 A BE501549 A BE 501549A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/042—Special circuits, e.g. comparators
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US146946A US2686899A (en) | 1950-03-01 | 1950-03-01 | Signal transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE501549A true BE501549A (US07122603-20061017-C00045.png) |
Family
ID=22519692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE501549D BE501549A (US07122603-20061017-C00045.png) | 1950-03-01 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2686899A (US07122603-20061017-C00045.png) |
| BE (1) | BE501549A (US07122603-20061017-C00045.png) |
| DE (1) | DE869219C (US07122603-20061017-C00045.png) |
| GB (1) | GB685352A (US07122603-20061017-C00045.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN168001B (US07122603-20061017-C00045.png) * | 1986-05-30 | 1991-01-19 | Siemens Ag | |
| US5469127A (en) * | 1992-08-04 | 1995-11-21 | Acrodyne Industries, Inc. | Amplification apparatus and method including modulator component |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2413440A (en) * | 1942-05-15 | 1946-12-31 | Hazeltine Research Inc | Electronic switch |
| US2448814A (en) * | 1944-07-12 | 1948-09-07 | Du Mont Allen B Lab Inc | Device for selecting metal pieces |
| BE473041A (US07122603-20061017-C00045.png) * | 1946-04-06 | |||
| US2487212A (en) * | 1946-06-19 | 1949-11-08 | Zenith Radio Corp | High efficiency modulator |
| BE479963A (US07122603-20061017-C00045.png) * | 1946-06-22 | |||
| FR932178A (fr) * | 1946-08-12 | 1948-03-15 | Soc Indep Telegraphie Sans Fil | Amplificateur modulé |
| US2453454A (en) * | 1946-08-31 | 1948-11-09 | Bell Telephone Labor Inc | Coder for code modulation transmission |
-
0
- BE BE501549D patent/BE501549A/xx unknown
-
1950
- 1950-03-01 US US146946A patent/US2686899A/en not_active Expired - Lifetime
-
1951
- 1951-02-23 GB GB4482/51A patent/GB685352A/en not_active Expired
- 1951-02-28 DE DER5471A patent/DE869219C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE869219C (de) | 1953-03-02 |
| GB685352A (en) | 1952-12-31 |
| US2686899A (en) | 1954-08-17 |
