IT8934897V0 - Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico - Google Patents
Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematicoInfo
- Publication number
- IT8934897V0 IT8934897V0 IT34897U IT3489789U IT8934897V0 IT 8934897 V0 IT8934897 V0 IT 8934897V0 IT 34897 U IT34897 U IT 34897U IT 3489789 U IT3489789 U IT 3489789U IT 8934897 V0 IT8934897 V0 IT 8934897V0
- Authority
- IT
- Italy
- Prior art keywords
- filter circuit
- television receiver
- audio frequencies
- intermediate audio
- system television
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
- H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
-
- 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
- H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
-
- 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)
- Superheterodyne Receivers (AREA)
- Networks Using Active Elements (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR880018917 | 1988-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT8934897V0 true IT8934897V0 (it) | 1989-11-21 |
Family
ID=19281519
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT34897U IT8934897V0 (it) | 1988-11-22 | 1989-11-21 | Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico |
| IT04688689A IT1237577B (it) | 1988-11-22 | 1989-11-21 | Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT04688689A IT1237577B (it) | 1988-11-22 | 1989-11-21 | Circuito di filtro per frequenze audio intermedie (if) per un ricevitore televisivo multi-sistematico. |
Country Status (6)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4317220A1 (de) * | 1993-05-24 | 1994-12-01 | Thomson Brandt Gmbh | Schaltung zur Tonnorm-Erkennung in einem Fernsehempfänger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3858118A (en) * | 1973-07-17 | 1974-12-31 | Westinghouse Electric Corp | Acoustic surface wave television tuner |
| FI63508C (fi) * | 1981-02-11 | 1983-06-10 | Salora Oy | Koppling vid en televisionsmottagare foer detektering av ljudsignaler som saents enligt olika saendningsnormer |
| US4511924A (en) * | 1982-10-29 | 1985-04-16 | Rca Corporation | Frequency translation phase-locked loop for separate or intercarrier type television sound detection |
| DE3509516C1 (de) * | 1985-03-16 | 1986-09-18 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung der Eingangsstufen eines Fernsehtuners |
-
1989
- 1989-11-17 DE DE3938303A patent/DE3938303A1/de active Granted
- 1989-11-17 HU HU895954A patent/HU206173B/hu not_active IP Right Cessation
- 1989-11-20 GB GB8926168A patent/GB2225681B/en not_active Expired - Fee Related
- 1989-11-20 ES ES898903952A patent/ES2017569A6/es not_active Expired - Lifetime
- 1989-11-21 RU SU894742485A patent/RU1833515C/ru active
- 1989-11-21 IT IT34897U patent/IT8934897V0/it unknown
- 1989-11-21 IT IT04688689A patent/IT1237577B/it active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| IT1237577B (it) | 1993-06-08 |
| DE3938303C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-12-24 |
| GB8926168D0 (en) | 1990-01-10 |
| HUT55179A (en) | 1991-04-29 |
| HU206173B (en) | 1992-08-28 |
| HU895954D0 (en) | 1990-02-28 |
| GB2225681A (en) | 1990-06-06 |
| IT8946886A0 (it) | 1989-11-21 |
| GB2225681B (en) | 1993-04-14 |
| ES2017569A6 (es) | 1991-02-16 |
| RU1833515C (en) | 1993-08-07 |
| IT8946886A1 (it) | 1991-05-21 |
| DE3938303A1 (de) | 1990-05-23 |
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