GB191327480A - Improvements in Receivers for Wireless Telegraphy. - Google Patents
Improvements in Receivers for Wireless Telegraphy.Info
- Publication number
- GB191327480A GB191327480A GB191327480DA GB191327480A GB 191327480 A GB191327480 A GB 191327480A GB 191327480D A GB191327480D A GB 191327480DA GB 191327480 A GB191327480 A GB 191327480A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- aerial
- oscillations
- produced
- audible
- 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
- 230000010355 oscillation Effects 0.000 abstract 4
- 230000035559 beat frequency Effects 0.000 abstract 2
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
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
-
- 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
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
27,480. Marconi's Wireless Telegraph Co., and Round, H. J. Nov. 28. Wireless telegraphy.-In a method of eliminating the effects of atmospherics, the natural frequency of the receiving - aerial A is made slightly different from that of the signal waves, and the beats produced by the free and the forced oscillations in the aerial are rectified by a detector C, connected to a circuit D tuned to the beat frequency. The oscillations produced by an atmospheric last a very short time, and in order that they shall not affect the circuit tuned to the beat frequency, the latter frequency may be made above the audible limit, and the signals may be made audible by the use of rectifiers or tickers, or by the local generation of a frequency which will interfere with the inaudible frequency, and produce beats of an audible frequency. When the arrangement shown in Fig. 1 is used to receive continuous waves, locally-produced oscillations of a frequency preferably equal to the natural frequency of the aerial, are arranged to beat with the forced oscillations due to the signal waves.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191327480T | 1913-11-28 | ||
| US483493A US1472092A (en) | 1913-11-28 | 1921-07-09 | Receiver for wireless telegraphy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191327480A true GB191327480A (en) | 1914-11-26 |
Family
ID=32372887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191327480D Expired GB191327480A (en) | 1913-11-28 | 1913-11-28 | Improvements in Receivers for Wireless Telegraphy. |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1472092A (en) |
| FR (1) | FR518396A (en) |
| GB (1) | GB191327480A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2627023A (en) * | 1942-09-12 | 1953-01-27 | Irving H Page | Noise reducing radio receiver |
-
1913
- 1913-11-28 GB GB191327480D patent/GB191327480A/en not_active Expired
-
1920
- 1920-07-01 FR FR518396A patent/FR518396A/en not_active Expired
-
1921
- 1921-07-09 US US483493A patent/US1472092A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1472092A (en) | 1923-10-30 |
| FR518396A (en) | 1921-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2660662A (en) | Search signal apparatus for determining the listening habits of wave signal receiver users | |
| GB191327480A (en) | Improvements in Receivers for Wireless Telegraphy. | |
| US2125953A (en) | Receiver of telephonic or telegraphic signals | |
| US1882772A (en) | Wireless receiving apparatus | |
| US2154073A (en) | Continuous wave signal receiving system | |
| GB161580A (en) | Improvements relating to the reception of radio signals | |
| GB360891A (en) | Electrical frequency control systems | |
| US1740859A (en) | System of secret radiant telephony and telegraphy | |
| GB253152A (en) | Improvements in or relating to wireless telegraphy and telephony | |
| US1301246A (en) | Receiver for wireless signals. | |
| GB279808A (en) | Improvements in or relating to radio receiving devices | |
| US1514752A (en) | Method of and means for receiving radiosignals | |
| US1851175A (en) | System of broadcasting | |
| US2123874A (en) | Crystal oscillator receiving system | |
| US1373931A (en) | Radio-receiving system | |
| US1545502A (en) | Radiotelephony | |
| SU60533A1 (en) | Method of receiving amplitude-modulated oscillations | |
| US2207541A (en) | Phase modulation receiver | |
| US2144776A (en) | Synchronization method for television | |
| US1768287A (en) | Ibbaitee | |
| GB293803A (en) | Improvements in or relating to high frequency signalling systems | |
| US1460439A (en) | Interference preventer | |
| GB191203055A (en) | Improvements in Wireless Telegraph Receiving Apparatus. | |
| GB102503A (en) | Improvements in High Frequency Signalling, particularly applicable to wireless Telephony. | |
| GB225907A (en) | Improvements in or relating to wireless systems |