GB380316A - Improvements in or relating to keying arrangements for wireless telegraphic transmitting apparatus - Google Patents
Improvements in or relating to keying arrangements for wireless telegraphic transmitting apparatusInfo
- Publication number
- GB380316A GB380316A GB34741/31A GB3474131A GB380316A GB 380316 A GB380316 A GB 380316A GB 34741/31 A GB34741/31 A GB 34741/31A GB 3474131 A GB3474131 A GB 3474131A GB 380316 A GB380316 A GB 380316A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contact
- amplifier
- oscillator
- relay
- circuit
- 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)
- Transmitters (AREA)
- Selective Calling Equipment (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL78018D DE549147C (de) | 1931-04-01 | 1931-04-01 | Anordnung zum Weichtasten von fremdgesteuerten Sendern |
Publications (1)
Publication Number | Publication Date |
---|---|
GB380316A true GB380316A (en) | 1932-09-15 |
Family
ID=29283139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34741/31A Expired GB380316A (en) | 1931-04-01 | 1931-12-15 | Improvements in or relating to keying arrangements for wireless telegraphic transmitting apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US2005790A (de) |
AT (1) | AT130839B (de) |
DE (2) | DE549147C (de) |
FR (1) | FR728688A (de) |
GB (1) | GB380316A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691094A (en) * | 1951-09-26 | 1954-10-05 | Motorola Inc | Radio control circuit |
DE960210C (de) * | 1954-10-22 | 1957-03-21 | Siemens Ag | Verfahren zur Tastung eines fremdgesteuerten Telegrafiesenders |
-
1931
- 1931-04-01 DE DEL78018D patent/DE549147C/de not_active Expired
- 1931-12-09 AT AT130839D patent/AT130839B/de active
- 1931-12-15 GB GB34741/31A patent/GB380316A/en not_active Expired
- 1931-12-21 FR FR728688D patent/FR728688A/fr not_active Expired
-
1932
- 1932-03-18 US US599738A patent/US2005790A/en not_active Expired - Lifetime
-
1934
- 1934-02-15 DE DEL85359D patent/DE659913C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE549147C (de) | 1932-04-23 |
DE659913C (de) | 1938-05-14 |
FR728688A (fr) | 1932-07-09 |
AT130839B (de) | 1932-12-10 |
US2005790A (en) | 1935-06-25 |
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