GB453135A - Improvements in or relating to television and like receivers - Google Patents
Improvements in or relating to television and like receiversInfo
- Publication number
- GB453135A GB453135A GB6808/35A GB680835A GB453135A GB 453135 A GB453135 A GB 453135A GB 6808/35 A GB6808/35 A GB 6808/35A GB 680835 A GB680835 A GB 680835A GB 453135 A GB453135 A GB 453135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- receiver
- frequency
- television
- quenching
- sound
- 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
- 238000010791 quenching Methods 0.000 abstract 3
- 230000000171 quenching effect Effects 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D11/00—Super-regenerative demodulator circuits
- H03D11/02—Super-regenerative demodulator circuits for amplitude-modulated oscillations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
453,135. Wireless receiving-apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and LINSELL, A. A., 80, Crystal Palace Park Road, Sydenham, both in London. March 4, 1935, No. 6808. [Class 40 (v)] In a receiver for television and sound the sound energy is received on a super-regenerative receiver and the quenching frequency is obtained from the television scanning frequency. The line frequency or a harmonic thereof may be used or a frequency multiplier may be employed to raise the scanning frequency. When a cathode ray type of television receiver is used the sound receiver is preferably in the quenched condition during the fly-back period. The super-regenerative receiver is preferably of the type described in Specification 341,786. The receiver valve grids may be connected by a resistance 3 to the ends of which may be connected directly a pair of deflecting plates or coils or alternatively a transformer may be used and tuned to a harmonic of the deflecting potential. Adjustment of the tapping to the cathodes allows the relative periods of regeneration and quenching to be adjusted while an adjustable condenser 28 or choke 27 permits the time of quenching relative to the instantaneous position of the scanning ray to be adjusted.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6808/35A GB453135A (en) | 1935-03-04 | 1935-03-04 | Improvements in or relating to television and like receivers |
| US65005A US2200753A (en) | 1935-03-04 | 1936-02-21 | Television system |
| DEM133762D DE757336C (en) | 1935-03-04 | 1936-03-04 | Television receiver in which the sound reception or the image and sound reception takes place by means of a pendulum feedback receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6808/35A GB453135A (en) | 1935-03-04 | 1935-03-04 | Improvements in or relating to television and like receivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB453135A true GB453135A (en) | 1936-09-04 |
Family
ID=9821134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6808/35A Expired GB453135A (en) | 1935-03-04 | 1935-03-04 | Improvements in or relating to television and like receivers |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2200753A (en) |
| DE (1) | DE757336C (en) |
| GB (1) | GB453135A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR960338A (en) * | 1946-12-10 | 1950-04-15 | ||
| US2602855A (en) * | 1950-09-30 | 1952-07-08 | Avco Mfg Corp | Television receiver squelching circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL40239C (en) * | 1933-07-21 |
-
1935
- 1935-03-04 GB GB6808/35A patent/GB453135A/en not_active Expired
-
1936
- 1936-02-21 US US65005A patent/US2200753A/en not_active Expired - Lifetime
- 1936-03-04 DE DEM133762D patent/DE757336C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE757336C (en) | 1952-05-19 |
| US2200753A (en) | 1940-05-14 |
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