GB1560290A - Demodulating television signals - Google Patents
Demodulating television signals Download PDFInfo
- Publication number
- GB1560290A GB1560290A GB51790/77A GB5179077A GB1560290A GB 1560290 A GB1560290 A GB 1560290A GB 51790/77 A GB51790/77 A GB 51790/77A GB 5179077 A GB5179077 A GB 5179077A GB 1560290 A GB1560290 A GB 1560290A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- circuit
- signal
- resistor
- tuning
- 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
- 230000001629 suppression Effects 0.000 claims description 14
- 238000009499 grossing Methods 0.000 claims description 11
- 230000005236 sound signal Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 18
- 230000005540 biological transmission Effects 0.000 description 6
- 230000010363 phase shift Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000003251 Pruritus Diseases 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 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
- H04N5/455—Demodulation-circuits
-
- 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
- H04N5/50—Tuning indicators; Automatic tuning control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Picture Signal Circuits (AREA)
- Circuits Of Receivers In General (AREA)
- Processing Of Color Television Signals (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7613946A NL7613946A (nl) | 1976-12-16 | 1976-12-16 | Televisieontvanger met een demodulatorschakeling voor het demoduleren van een op een draaggolf ge- moduleerd televisiesignaal. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1560290A true GB1560290A (en) | 1980-02-06 |
Family
ID=19827382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB51790/77A Expired GB1560290A (en) | 1976-12-16 | 1977-12-13 | Demodulating television signals |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4159482A (en:Method) |
| JP (1) | JPS5391625A (en:Method) |
| AU (1) | AU512056B2 (en:Method) |
| CA (1) | CA1091343A (en:Method) |
| DE (1) | DE2754089C3 (en:Method) |
| ES (1) | ES465050A1 (en:Method) |
| FR (1) | FR2374805A1 (en:Method) |
| GB (1) | GB1560290A (en:Method) |
| IT (1) | IT1091678B (en:Method) |
| NL (1) | NL7613946A (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6041493B2 (ja) * | 1977-03-16 | 1985-09-17 | ソニー株式会社 | 受信機 |
| US4263611A (en) * | 1979-08-29 | 1981-04-21 | Rca Corporation | Television signal processing system |
| US4266245A (en) * | 1980-01-29 | 1981-05-05 | Rca Corporation | Differential amplifier current repeater |
| NL8200374A (nl) * | 1982-02-02 | 1983-09-01 | Philips Nv | Televisie-ontvanger met een videosignaaldetektor van een met behulp van een referentiesignaal detekterend type. |
| NL8301179A (nl) * | 1983-04-01 | 1984-11-01 | Philips Nv | Ontvanger voor hf-signalen voorzien van een paar parallelle signaalwegen. |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL155157B (nl) * | 1971-02-17 | 1977-11-15 | Philips Nv | Demodulatorschakeling voor het demoduleren van een op een draaggolf gemoduleerd videosignaal. |
| US3871022A (en) * | 1973-12-03 | 1975-03-11 | Motorola Inc | Noise and overload protection circuit for synchronous demodulators |
-
1976
- 1976-12-16 NL NL7613946A patent/NL7613946A/xx not_active Application Discontinuation
-
1977
- 1977-11-17 US US05/852,361 patent/US4159482A/en not_active Expired - Lifetime
- 1977-12-05 DE DE2754089A patent/DE2754089C3/de not_active Expired
- 1977-12-07 CA CA292,540A patent/CA1091343A/en not_active Expired
- 1977-12-13 AU AU31485/77A patent/AU512056B2/en not_active Expired
- 1977-12-13 GB GB51790/77A patent/GB1560290A/en not_active Expired
- 1977-12-13 IT IT69784/77A patent/IT1091678B/it active
- 1977-12-13 JP JP14893277A patent/JPS5391625A/ja active Granted
- 1977-12-14 ES ES465050A patent/ES465050A1/es not_active Expired
- 1977-12-15 FR FR7737828A patent/FR2374805A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2754089A1 (de) | 1978-06-29 |
| JPS5391625A (en) | 1978-08-11 |
| IT1091678B (it) | 1985-07-06 |
| CA1091343A (en) | 1980-12-09 |
| FR2374805A1 (fr) | 1978-07-13 |
| ES465050A1 (es) | 1978-09-01 |
| DE2754089B2 (de) | 1981-05-27 |
| JPS6156916B2 (en:Method) | 1986-12-04 |
| FR2374805B1 (en:Method) | 1981-06-26 |
| AU512056B2 (en) | 1980-09-18 |
| US4159482A (en) | 1979-06-26 |
| AU3148577A (en) | 1979-06-21 |
| DE2754089C3 (de) | 1982-01-28 |
| NL7613946A (nl) | 1978-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |