GB516252A - Improvements in television and like receivers - Google Patents
Improvements in television and like receiversInfo
- Publication number
- GB516252A GB516252A GB2139838A GB2139838A GB516252A GB 516252 A GB516252 A GB 516252A GB 2139838 A GB2139838 A GB 2139838A GB 2139838 A GB2139838 A GB 2139838A GB 516252 A GB516252 A GB 516252A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vision
- impedance
- coupling
- filter
- capacities
- 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
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
Abstract
516,252. Wireless receiving systems ; impedance networks. GENERAL ELECTRIC CO., Ltd., and ESPLEY, D. C. July 19, 1938, No. 21398. [Classes 40 (iii) and 40 (v)] In a television receiver having a common frequency- Changer for the vision and associated sound, there is inserted in the vision path after the common path a coupling filter of the type shown in Fig. 1 having an infinite impedance at a single frequency at or very near to the sound I.F. and zero impedance over a finite range corresponding to the vision I.F. The filter may be developed into the form shown in Fig. 4 and the capacities C1, C2 may then be the distributed capacities of the circuits connected by the coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2139838A GB516252A (en) | 1938-07-19 | 1938-07-19 | Improvements in television and like receivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2139838A GB516252A (en) | 1938-07-19 | 1938-07-19 | Improvements in television and like receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB516252A true GB516252A (en) | 1939-12-28 |
Family
ID=10162254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2139838A Expired GB516252A (en) | 1938-07-19 | 1938-07-19 | Improvements in television and like receivers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB516252A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103554A (en) * | 1963-09-10 | Interstage network using cancellation trap | ||
| GB2171871A (en) * | 1985-02-28 | 1986-09-03 | Rca Corp | Television signal input filter |
-
1938
- 1938-07-19 GB GB2139838A patent/GB516252A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3103554A (en) * | 1963-09-10 | Interstage network using cancellation trap | ||
| GB2171871A (en) * | 1985-02-28 | 1986-09-03 | Rca Corp | Television signal input filter |
| US4642691A (en) * | 1985-02-28 | 1987-02-10 | Rca Corporation | Television signal input filter |
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