FR821505A - Improvements to high frequency telegraph transmitters and the like - Google Patents
Improvements to high frequency telegraph transmitters and the likeInfo
- Publication number
- FR821505A FR821505A FR821505DA FR821505A FR 821505 A FR821505 A FR 821505A FR 821505D A FR821505D A FR 821505DA FR 821505 A FR821505 A FR 821505A
- Authority
- FR
- France
- Prior art keywords
- high frequency
- telegraph transmitters
- frequency telegraph
- transmitters
- telegraph
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/04—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electron Tubes For Measurement (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB202376X | 1936-05-12 | ||
GB90237X | 1937-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR821505A true FR821505A (en) | 1937-12-07 |
Family
ID=26242589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR821505D Expired FR821505A (en) | 1936-05-12 | 1937-05-07 | Improvements to high frequency telegraph transmitters and the like |
Country Status (4)
Country | Link |
---|---|
US (1) | US2184382A (en) |
CH (1) | CH202376A (en) |
FR (1) | FR821505A (en) |
GB (1) | GB475105A (en) |
-
1936
- 1936-05-12 GB GB13473/36A patent/GB475105A/en not_active Expired
-
1937
- 1937-04-12 CH CH202376D patent/CH202376A/en unknown
- 1937-04-30 US US139865A patent/US2184382A/en not_active Expired - Lifetime
- 1937-05-07 FR FR821505D patent/FR821505A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB475105A (en) | 1937-11-12 |
CH202376A (en) | 1939-01-15 |
US2184382A (en) | 1939-12-26 |
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