IT1016744B - Ricevitore di televisione - Google Patents
Ricevitore di televisioneInfo
- Publication number
- IT1016744B IT1016744B IT69430/74A IT6943074A IT1016744B IT 1016744 B IT1016744 B IT 1016744B IT 69430/74 A IT69430/74 A IT 69430/74A IT 6943074 A IT6943074 A IT 6943074A IT 1016744 B IT1016744 B IT 1016744B
- Authority
- IT
- Italy
- Prior art keywords
- television receiver
- television
- receiver
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
-
- 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)
- Power Engineering (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Networks Using Active Elements (AREA)
- Picture Signal Circuits (AREA)
- Noise Elimination (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7310739,A NL173342C (nl) | 1973-08-03 | 1973-08-03 | Televisieontvanger met een automatische afstemcorrectieschakeling. |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1016744B true IT1016744B (it) | 1977-06-20 |
Family
ID=19819366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT69430/74A IT1016744B (it) | 1973-08-03 | 1974-07-31 | Ricevitore di televisione |
Country Status (11)
Country | Link |
---|---|
US (1) | US3968325A (it) |
JP (1) | JPS5927143B2 (it) |
AT (1) | AT335533B (it) |
BE (1) | BE818400A (it) |
CA (1) | CA1038076A (it) |
DE (1) | DE2435858C3 (it) |
ES (1) | ES428847A1 (it) |
FR (1) | FR2239830B1 (it) |
GB (1) | GB1475803A (it) |
IT (1) | IT1016744B (it) |
NL (1) | NL173342C (it) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5382112A (en) * | 1976-12-27 | 1978-07-20 | Matsushita Electric Ind Co Ltd | Automatic control circuit for local oscillating frequency |
JPS5396613A (en) * | 1977-02-03 | 1978-08-24 | Matsushita Electric Ind Co Ltd | Automatic controller for local oscillation frequency |
US4091421A (en) * | 1977-04-28 | 1978-05-23 | Zenith Radio Corporation | Television AFC system having complementary sound and picture carrier control effects |
US4118740A (en) * | 1977-07-21 | 1978-10-03 | Zenith Radio Corporation | Surface wave AFC discriminator with two zero crossings |
JPS6049372B2 (ja) * | 1978-03-30 | 1985-11-01 | ソニー株式会社 | テレビジヨン受像機 |
US4321624A (en) * | 1978-10-30 | 1982-03-23 | Rca Corporation | AFT Circuit |
US4220974A (en) * | 1978-10-30 | 1980-09-02 | Rca Corporation | AFT circuit |
US4263611A (en) * | 1979-08-29 | 1981-04-21 | Rca Corporation | Television signal processing system |
GB2061040B (en) * | 1979-10-10 | 1983-08-10 | Philips Electronic Associated | Digital signal transmission system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3435345A (en) * | 1965-06-24 | 1969-03-25 | Willis L Ashby | System for detecting coherent energy in the presence of saturating noise |
US3459887A (en) * | 1966-04-11 | 1969-08-05 | Zenith Radio Corp | Automatic frequency control system |
US3469025A (en) * | 1966-05-23 | 1969-09-23 | Rca Corp | Automatic frequency control system |
NL6905094A (it) * | 1969-04-01 | 1970-10-05 | ||
US3704420A (en) * | 1970-07-20 | 1972-11-28 | Us Navy | Automatic frequency control for suppressed carrier receivers |
-
1973
- 1973-08-03 NL NLAANVRAGE7310739,A patent/NL173342C/xx not_active IP Right Cessation
-
1974
- 1974-07-24 US US05/491,557 patent/US3968325A/en not_active Expired - Lifetime
- 1974-07-25 DE DE2435858A patent/DE2435858C3/de not_active Expired
- 1974-07-26 CA CA205,737A patent/CA1038076A/en not_active Expired
- 1974-07-31 IT IT69430/74A patent/IT1016744B/it active
- 1974-07-31 GB GB3377774A patent/GB1475803A/en not_active Expired
- 1974-07-31 JP JP49087117A patent/JPS5927143B2/ja not_active Expired
- 1974-07-31 AT AT627974A patent/AT335533B/de not_active IP Right Cessation
- 1974-08-01 ES ES428847A patent/ES428847A1/es not_active Expired
- 1974-08-01 BE BE147213A patent/BE818400A/xx not_active IP Right Cessation
- 1974-08-02 FR FR747426927A patent/FR2239830B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES428847A1 (es) | 1976-08-16 |
FR2239830A1 (it) | 1975-02-28 |
NL173342C (nl) | 1984-06-18 |
US3968325A (en) | 1976-07-06 |
ATA627974A (de) | 1976-07-15 |
AU7180474A (en) | 1976-02-05 |
DE2435858A1 (de) | 1975-02-27 |
DE2435858B2 (de) | 1978-02-16 |
AT335533B (de) | 1977-03-10 |
DE2435858C3 (de) | 1978-10-12 |
CA1038076A (en) | 1978-09-05 |
BE818400A (fr) | 1975-02-03 |
GB1475803A (en) | 1977-06-10 |
FR2239830B1 (it) | 1979-02-09 |
NL173342B (nl) | 1983-08-01 |
NL7310739A (nl) | 1975-02-05 |
JPS5046039A (it) | 1975-04-24 |
JPS5927143B2 (ja) | 1984-07-03 |
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