GB450263A - Improvements in wireless receiving circuits and apparatus - Google Patents
Improvements in wireless receiving circuits and apparatusInfo
- Publication number
- GB450263A GB450263A GB603535A GB603535A GB450263A GB 450263 A GB450263 A GB 450263A GB 603535 A GB603535 A GB 603535A GB 603535 A GB603535 A GB 603535A GB 450263 A GB450263 A GB 450263A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerial
- receives
- waves
- converted
- short
- 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
Abstract
450,263. Multiplex wireless signalling. DOWDING, G. V., 215, Hainault Road, Leytonstone, London. Feb. 25, 1935, No. 6035. [Class 40 (v)] Incoming signals are converted to different intermediate-frequencies of the same order, which are applied to a common amplifier 24. An aerial 10 receives waves in the broadcast band and an aerial 13 receives ultra-short waves. Part of the aerial for the broadcast band may be used for the shorter waves by separating it by a choke-coil impedance, Fig. 4 (not shown). The short-wave receiver 21 receives both television and sound, the latter is converted to the same intermediate-frequency as in the broadcast receiver 11, and a switch 25 enables the signals from either wave band to be fed to a subsequent amplifier 19 and reproducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB603535A GB450263A (en) | 1935-02-25 | 1935-02-25 | Improvements in wireless receiving circuits and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB603535A GB450263A (en) | 1935-02-25 | 1935-02-25 | Improvements in wireless receiving circuits and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB450263A true GB450263A (en) | 1936-07-14 |
Family
ID=9807236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB603535A Expired GB450263A (en) | 1935-02-25 | 1935-02-25 | Improvements in wireless receiving circuits and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB450263A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2609441A (en) * | 1949-12-01 | 1952-09-02 | Rca Corp | Combination radio television receiving system |
| US2611818A (en) * | 1949-12-01 | 1952-09-23 | Rca Corp | Combination radio and television receiving system |
| DE1022275B (en) * | 1953-11-14 | 1958-01-09 | Siemens Elektrogeraete Gmbh | Method and device for receiving sound transmissions stereophonically transmitted via separate modulated carrier waves |
| DE1080631B (en) * | 1954-12-31 | 1960-04-28 | Philips Patentverwaltung | Receiver for recording stereophonic broadcasts |
| DE1081519B (en) * | 1955-11-11 | 1960-05-12 | Paul Raphael | Additional device for a standard radio overlay receiver for selective reception of special messages |
| DE1117177B (en) * | 1959-08-08 | 1961-11-16 | Philips Patentverwaltung | Receiving arrangement with two optionally connectable overlay levels |
-
1935
- 1935-02-25 GB GB603535A patent/GB450263A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2609441A (en) * | 1949-12-01 | 1952-09-02 | Rca Corp | Combination radio television receiving system |
| US2611818A (en) * | 1949-12-01 | 1952-09-23 | Rca Corp | Combination radio and television receiving system |
| DE1022275B (en) * | 1953-11-14 | 1958-01-09 | Siemens Elektrogeraete Gmbh | Method and device for receiving sound transmissions stereophonically transmitted via separate modulated carrier waves |
| DE1080631B (en) * | 1954-12-31 | 1960-04-28 | Philips Patentverwaltung | Receiver for recording stereophonic broadcasts |
| DE1081519B (en) * | 1955-11-11 | 1960-05-12 | Paul Raphael | Additional device for a standard radio overlay receiver for selective reception of special messages |
| DE1117177B (en) * | 1959-08-08 | 1961-11-16 | Philips Patentverwaltung | Receiving arrangement with two optionally connectable overlay levels |
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