GB393147A - Improvements in or relating to apparatus for the transmission and reception of wireless messages and the like - Google Patents
Improvements in or relating to apparatus for the transmission and reception of wireless messages and the likeInfo
- Publication number
- GB393147A GB393147A GB2574032A GB2574032A GB393147A GB 393147 A GB393147 A GB 393147A GB 2574032 A GB2574032 A GB 2574032A GB 2574032 A GB2574032 A GB 2574032A GB 393147 A GB393147 A GB 393147A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loud
- speaker
- note
- reception
- frequency
- 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
- 230000005540 biological transmission Effects 0.000 title 1
- 235000014676 Phragmites communis Nutrition 0.000 abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 1
- 244000089486 Phragmites australis subsp australis Species 0.000 abstract 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 abstract 1
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 1
- 229910052711 selenium Inorganic materials 0.000 abstract 1
- 239000011669 selenium Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE398641D BE398641A (forum.php) | 1932-09-16 | ||
| GB2574032A GB393147A (en) | 1932-09-16 | 1932-09-16 | Improvements in or relating to apparatus for the transmission and reception of wireless messages and the like |
| FR760906D FR760906A (fr) | 1932-09-16 | 1933-09-15 | Améliorations relatives aux appareils de transmission et de réception de communications télégraphiques sans fil et autres similaires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2574032A GB393147A (en) | 1932-09-16 | 1932-09-16 | Improvements in or relating to apparatus for the transmission and reception of wireless messages and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB393147A true GB393147A (en) | 1933-06-01 |
Family
ID=10232501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2574032A Expired GB393147A (en) | 1932-09-16 | 1932-09-16 | Improvements in or relating to apparatus for the transmission and reception of wireless messages and the like |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE398641A (forum.php) |
| FR (1) | FR760906A (forum.php) |
| GB (1) | GB393147A (forum.php) |
-
0
- BE BE398641D patent/BE398641A/xx unknown
-
1932
- 1932-09-16 GB GB2574032A patent/GB393147A/en not_active Expired
-
1933
- 1933-09-15 FR FR760906D patent/FR760906A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE398641A (forum.php) | |
| FR760906A (fr) | 1934-03-06 |
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