GB461330A - Improvements relating to radio receivers - Google Patents
Improvements relating to radio receiversInfo
- Publication number
- GB461330A GB461330A GB2296935A GB2296935A GB461330A GB 461330 A GB461330 A GB 461330A GB 2296935 A GB2296935 A GB 2296935A GB 2296935 A GB2296935 A GB 2296935A GB 461330 A GB461330 A GB 461330A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuits
- interference
- branch circuit
- whistle
- valve
- 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
- 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
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Abstract
461,330. Valve circuits for wireless reception; filter circuits. COLE, Ltd., E. K., aud FALKUS, A. E. Aug. 15, 1935, No. 22969. [Classes 40 (iii) and 40 (v)] In a radio receiver, the whistle due to interference by adjacent wave-lengths or other causes is wholly or in part suppressed by connecting across the path of the detected signal a condenser 3 in series with an inductance 5, the latter being shunted by a variable resistance 6. The effective reactance in the branch circuit 3, 5, 6, is zero at the whistle frequency. When interference is not present, the resistance serves as a tone control, and when the tapping passes its extreme lower position the control knob may open a switch 4. Other branch circuits such as 8 may be tuned to other interfering frequencies. The branch circuit may be interposed between a detector valve V1 and an amplifier V2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2296935A GB461330A (en) | 1935-08-15 | 1935-08-15 | Improvements relating to radio receivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2296935A GB461330A (en) | 1935-08-15 | 1935-08-15 | Improvements relating to radio receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB461330A true GB461330A (en) | 1937-02-15 |
Family
ID=10187980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2296935A Expired GB461330A (en) | 1935-08-15 | 1935-08-15 | Improvements relating to radio receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB461330A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0201986A2 (en) * | 1985-04-10 | 1986-11-20 | Uniden Corporation | Intermodulation suppressing circuit |
| WO2010020557A1 (en) * | 2008-08-21 | 2010-02-25 | Cambridge Silicon Radio Limited | Tuneable filter |
-
1935
- 1935-08-15 GB GB2296935A patent/GB461330A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0201986A2 (en) * | 1985-04-10 | 1986-11-20 | Uniden Corporation | Intermodulation suppressing circuit |
| EP0201986A3 (en) * | 1985-04-10 | 1988-11-30 | Uniden Corporation | Intermodulation suppressing circuit |
| WO2010020557A1 (en) * | 2008-08-21 | 2010-02-25 | Cambridge Silicon Radio Limited | Tuneable filter |
| GB2467858A (en) * | 2008-08-21 | 2010-08-18 | Cambridge Silicon Radio Ltd | Tuneable filter |
| US7949308B2 (en) | 2008-08-21 | 2011-05-24 | Cambridge Silicon Radio Limited | Tuneable filter |
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