GB147823A - Improvements in and relating to wireless signalling systems - Google Patents
Improvements in and relating to wireless signalling systemsInfo
- Publication number
- GB147823A GB147823A GB19868/20A GB1986820A GB147823A GB 147823 A GB147823 A GB 147823A GB 19868/20 A GB19868/20 A GB 19868/20A GB 1986820 A GB1986820 A GB 1986820A GB 147823 A GB147823 A GB 147823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillations
- thermionic
- telephone
- generator
- detected
- 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
- 230000011664 signaling Effects 0.000 title 1
- 230000010355 oscillation Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 2
- 230000035559 beat frequency Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US147823XA | 1913-12-29 | 1913-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB147823A true GB147823A (en) | 1921-10-10 |
Family
ID=21767714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19868/20A Expired GB147823A (en) | 1913-12-29 | 1920-07-09 | Improvements in and relating to wireless signalling systems |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE302894C (enrdf_load_stackoverflow) |
| FR (2) | FR507197A (enrdf_load_stackoverflow) |
| GB (1) | GB147823A (enrdf_load_stackoverflow) |
| NL (1) | NL9133C (enrdf_load_stackoverflow) |
-
1914
- 1914-12-30 DE DE1914302894D patent/DE302894C/de not_active Expired
-
1919
- 1919-08-08 NL NL12681A patent/NL9133C/xx active
- 1919-12-09 FR FR507197A patent/FR507197A/fr not_active Expired
- 1919-12-23 FR FR507652A patent/FR507652A/fr not_active Expired
-
1920
- 1920-07-09 GB GB19868/20A patent/GB147823A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL9133C (enrdf_load_stackoverflow) | 1923-06-15 |
| FR507197A (fr) | 1920-09-07 |
| FR507652A (fr) | 1920-09-21 |
| DE302894C (enrdf_load_stackoverflow) | 1918-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB147823A (en) | Improvements in and relating to wireless signalling systems | |
| US2085927A (en) | Receiving apparatus for communication systems | |
| US2558129A (en) | Supervisory device for communication apparatus | |
| GB301326A (en) | Improvements in or relating to radio transmitters | |
| US1796071A (en) | High-frequency repeater | |
| US1547866A (en) | Telegraph relay | |
| US1772796A (en) | Amplifier for coded train-control apparatus | |
| GB205472A (en) | Improvements in or relating to wireless electric signalling systems | |
| US1790171A (en) | Magnetic radio receiver | |
| GB429007A (en) | Improvements in or relating to arrangements for modulating high frequency carrier waves | |
| GB223938A (en) | Improvements in vacuum tube circuits | |
| GB485993A (en) | Improvements in or relating to carrier telephony systems | |
| GB368954A (en) | System for reducing fading effects in radio communication | |
| GB310857A (en) | Improvements in or relating to amplifying systems for weak electric currents | |
| GB215372A (en) | Improvements in circuit arrangements employing vacuum tubes | |
| GB261415A (en) | Improvements in thermionic valve amplifying systems | |
| GB149466A (en) | Improvements in and relating to the use of electron discharge devices in signalling systems | |
| GB220765A (en) | Improvements relating to wireless receiving circuits | |
| GB391739A (en) | Improvements relating to radio receiving circuits | |
| GB222595A (en) | Improvements in or relating to regenerative circuits as used in wireless apparatus and the like | |
| GB258592A (en) | Improvements in or relating to electrical rectifying installations | |
| GB393379A (en) | An improved method for modulating high frequency transmitters | |
| GB344747A (en) | Improvements in modulating arrangements for high frequency transmitters | |
| GB108763A (en) | Improvements in the Art of Telegraphy. | |
| GB191304779A (en) | Improvements in Receiving Apparatus for Wireless Telegraphy. |