GB494477A - Improvements in or relating to radio and like receivers - Google Patents
Improvements in or relating to radio and like receiversInfo
- Publication number
- GB494477A GB494477A GB360438A GB360438A GB494477A GB 494477 A GB494477 A GB 494477A GB 360438 A GB360438 A GB 360438A GB 360438 A GB360438 A GB 360438A GB 494477 A GB494477 A GB 494477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diode
- circuit
- rectifier
- fed
- noise
- 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
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/04—Limiting level dependent on strength of signal; Limiting level dependent on strength of carrier on which signal is modulated
Landscapes
- Noise Elimination (AREA)
- Amplifiers (AREA)
Abstract
494,477. Wireless receiving systems. CHART, F. J. (Clay, M. G.) Feb. 4, 1938, No. 3604. [Class 40 (v)] In a noise-suppressing circuit in which the receiver is disabled by the output from a rectifier passing noise peaks, said rectifier is biassed back by the output from a rectifier of longer time constant fed with signals and used also for A.V.C. purposes. As shown an auxiliary I.F. amplifier 6K7 fed from the input of the last main I.F. amplifier 6L7, feeds two diodes in a valve 6H6 the upper of which is an A.V.C. diode with load circuit R2, C2 which is included in the circuit of the lower diode across whose load resistance R4, R7 are developed noise-suppressing potentials which are fed to the third grid of valve 6L7 through choke L4 and condenser C5. In another embodiment a tapped input circuit supplies less input voltage to the suppressor diode than to the A.V.C. diode and these diodes may be duplicated for full-wave rectification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB360438A GB494477A (en) | 1938-02-04 | 1938-02-04 | Improvements in or relating to radio and like receivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB360438A GB494477A (en) | 1938-02-04 | 1938-02-04 | Improvements in or relating to radio and like receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB494477A true GB494477A (en) | 1938-10-26 |
Family
ID=9761458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB360438A Expired GB494477A (en) | 1938-02-04 | 1938-02-04 | Improvements in or relating to radio and like receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB494477A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8737645B2 (en) | 2012-10-10 | 2014-05-27 | Archibald Doty | Increasing perceived signal strength using persistence of hearing characteristics |
| US9036088B2 (en) | 2013-07-09 | 2015-05-19 | Archibald Doty | System and methods for increasing perceived signal strength based on persistence of perception |
-
1938
- 1938-02-04 GB GB360438A patent/GB494477A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8737645B2 (en) | 2012-10-10 | 2014-05-27 | Archibald Doty | Increasing perceived signal strength using persistence of hearing characteristics |
| US9036088B2 (en) | 2013-07-09 | 2015-05-19 | Archibald Doty | System and methods for increasing perceived signal strength based on persistence of perception |
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