DE2661116C2 - Verfahren zum Abstimmen eines Empfängertuners auf ein genormtes Fernsehsignal - Google Patents
Verfahren zum Abstimmen eines Empfängertuners auf ein genormtes FernsehsignalInfo
- Publication number
- DE2661116C2 DE2661116C2 DE2661116A DE2661116A DE2661116C2 DE 2661116 C2 DE2661116 C2 DE 2661116C2 DE 2661116 A DE2661116 A DE 2661116A DE 2661116 A DE2661116 A DE 2661116A DE 2661116 C2 DE2661116 C2 DE 2661116C2
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- gate
- input
- channels
- factor
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 16
- 238000004422 calculation algorithm Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000014509 gene expression Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
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
- H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
- H03J5/0281—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer the digital values being held in an auxiliary non erasable memory
-
- 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
- H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT69771/75A IT1051262B (it) | 1975-11-11 | 1975-11-11 | Sintonizzatore a sintesi di frequenza |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2661116C2 true DE2661116C2 (de) | 1993-10-14 |
Family
ID=11312799
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2661116A Expired - Lifetime DE2661116C2 (de) | 1975-11-11 | 1976-11-09 | Verfahren zum Abstimmen eines Empfängertuners auf ein genormtes Fernsehsignal |
| DE19762651030 Ceased DE2651030A1 (de) | 1975-11-11 | 1976-11-09 | Abstimmschaltung fuer ein empfangsgeraet |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762651030 Ceased DE2651030A1 (de) | 1975-11-11 | 1976-11-09 | Abstimmschaltung fuer ein empfangsgeraet |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4283791A (enExample) |
| DE (2) | DE2661116C2 (enExample) |
| FR (1) | FR2331916A1 (enExample) |
| GB (1) | GB1550413A (enExample) |
| IT (1) | IT1051262B (enExample) |
| NL (1) | NL189064C (enExample) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53131702A (en) * | 1977-04-21 | 1978-11-16 | Sony Corp | Electronic tuning device |
| DE2858826C2 (de) * | 1977-12-30 | 1996-09-12 | Sisvel Spa | Schaltungsanordnung zum Abstimmen eines Fernsehsignalempfängers |
| IT1091632B (it) | 1977-12-30 | 1985-07-06 | Indesit | Disposizione circuitale per sintonizzare un segnale tra una pluralita di segnali radioelettrici |
| JPS598966B2 (ja) * | 1979-04-10 | 1984-02-28 | 株式会社東芝 | テレビジヨン受像機の制御装置 |
| DE3634246A1 (de) * | 1986-10-08 | 1988-04-21 | Grundig Emv | Abstimmsystem, insbesondere fuer videogeneratoren und fernsehempfaenger |
| DE3830921A1 (de) * | 1988-09-12 | 1990-03-22 | Grundig Emv | Anordnung zur anpassung eines empfangsgeraetes an verschiedene kanalraster |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665323A (en) * | 1971-05-10 | 1972-05-23 | Collins Radio Co | Proportional digital control for radio frequency synthesizers |
| GB1363048A (en) * | 1972-04-07 | 1974-08-14 | Bendix Corp | Pulse tuning control system for radio broadcast receivers |
| DE2460536A1 (de) * | 1973-12-27 | 1975-07-10 | Sony Corp | Tuner |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665223A (en) * | 1969-11-28 | 1972-05-23 | Armor Elevator Co Inc | Multiple potentiometer timer for elevator controls |
| US3665316A (en) * | 1970-07-06 | 1972-05-23 | Jerrold Electronics Corp | Maximum channel utilization using single ended amplifiers in a frequency band greater than one octave |
| US3898566A (en) * | 1972-10-02 | 1975-08-05 | Phasecom Corp | Method and apparatus for reducing distortion in multicarrier communication systems |
| JPS5325721B2 (enExample) * | 1973-11-07 | 1978-07-28 | ||
| US3961261A (en) * | 1974-03-14 | 1976-06-01 | Tennelec, Inc. | Crystalless scanning radio receiver |
| US3883807A (en) * | 1974-05-30 | 1975-05-13 | Motorola Inc | Tuning control system |
| JPS5823972B2 (ja) * | 1975-05-30 | 1983-05-18 | 三洋電機株式会社 | 多バンドデイジタルシンセサイザ受信機 |
| JPS5267201A (en) * | 1975-12-01 | 1977-06-03 | Matsushita Electric Ind Co Ltd | Station selecting unit |
-
1975
- 1975-11-11 IT IT69771/75A patent/IT1051262B/it active
-
1976
- 1976-10-26 GB GB44395/76A patent/GB1550413A/en not_active Expired
- 1976-10-26 US US05/735,564 patent/US4283791A/en not_active Expired - Lifetime
- 1976-11-04 NL NLAANVRAGE7612254,A patent/NL189064C/xx not_active IP Right Cessation
- 1976-11-09 DE DE2661116A patent/DE2661116C2/de not_active Expired - Lifetime
- 1976-11-09 DE DE19762651030 patent/DE2651030A1/de not_active Ceased
- 1976-11-12 FR FR7634116A patent/FR2331916A1/fr active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665323A (en) * | 1971-05-10 | 1972-05-23 | Collins Radio Co | Proportional digital control for radio frequency synthesizers |
| GB1363048A (en) * | 1972-04-07 | 1974-08-14 | Bendix Corp | Pulse tuning control system for radio broadcast receivers |
| DE2460536A1 (de) * | 1973-12-27 | 1975-07-10 | Sony Corp | Tuner |
Non-Patent Citations (2)
| Title |
|---|
| E. Breeze et al: "A Frequency Syntheziser for Television Receivers" in IEEE Transactions on BTR, Nov. 1974, S.259-263,281-285, "TV to get more digital tunning" im Electronics,1974, Dec., S. 26-28, RCA Solid State Databook, COS/MOS Digital Integrated Circuits 1972, S. 281-295 * |
| H. Schossen, "Digitaler Suchlauf für einen UKW Empfänger" in Funkschau, 1971, H. 17, S. 535-537 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2331916B1 (enExample) | 1982-09-17 |
| IT1051262B (it) | 1981-04-21 |
| US4283791A (en) | 1981-08-11 |
| NL189064B (nl) | 1992-07-16 |
| NL7612254A (nl) | 1977-05-13 |
| FR2331916A1 (fr) | 1977-06-10 |
| NL189064C (nl) | 1992-12-16 |
| DE2651030A1 (de) | 1977-05-12 |
| GB1550413A (en) | 1979-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| Q172 | Divided out of (supplement): |
Ref country code: DE Ref document number: 2651030 |
|
| 8110 | Request for examination paragraph 44 | ||
| 8181 | Inventor (new situation) |
Free format text: FARINA, ATTILIO, TURIN/TORINO, IT |
|
| 8181 | Inventor (new situation) |
Free format text: FARINA, ATTILO, TURIN/TORINO, IT |
|
| AC | Divided out of |
Ref country code: DE Ref document number: 2651030 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent |