IT1100758B - TUNING SYSTEM FOR RECEIVING RADIOFREQUENCY COMPOSED TELEVISION SIGNALS - Google Patents
TUNING SYSTEM FOR RECEIVING RADIOFREQUENCY COMPOSED TELEVISION SIGNALSInfo
- Publication number
- IT1100758B IT1100758B IT30200/78A IT3020078A IT1100758B IT 1100758 B IT1100758 B IT 1100758B IT 30200/78 A IT30200/78 A IT 30200/78A IT 3020078 A IT3020078 A IT 3020078A IT 1100758 B IT1100758 B IT 1100758B
- Authority
- IT
- Italy
- Prior art keywords
- television signals
- tuning system
- receiving radiofrequency
- radiofrequency
- receiving
- 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
- H03J5/02—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Television Receiver Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63206075A | 1975-11-14 | 1975-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7830200A0 IT7830200A0 (en) | 1978-11-24 |
| IT1100758B true IT1100758B (en) | 1985-09-28 |
Family
ID=24533910
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT28406/76A IT1073074B (en) | 1975-11-14 | 1976-10-15 | TELEVISION FREQUENCY SYNTHESIZER, FOR NON STANDARDIZED FREQUENCY CARRIERS |
| IT30200/78A IT1100758B (en) | 1975-11-14 | 1978-11-24 | TUNING SYSTEM FOR RECEIVING RADIOFREQUENCY COMPOSED TELEVISION SIGNALS |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT28406/76A IT1073074B (en) | 1975-11-14 | 1976-10-15 | TELEVISION FREQUENCY SYNTHESIZER, FOR NON STANDARDIZED FREQUENCY CARRIERS |
Country Status (15)
| Country | Link |
|---|---|
| JP (2) | JPS5828932B2 (en) |
| AT (1) | AT377878B (en) |
| AU (1) | AU512493B2 (en) |
| BE (1) | BE848283A (en) |
| CA (1) | CA1175586A (en) |
| DE (1) | DE2651297B2 (en) |
| ES (1) | ES453293A1 (en) |
| FI (1) | FI66269C (en) |
| FR (2) | FR2331917A1 (en) |
| GB (1) | GB1561544A (en) |
| IT (2) | IT1073074B (en) |
| MX (1) | MX3472E (en) |
| NL (1) | NL188065C (en) |
| PL (1) | PL114951B1 (en) |
| SE (1) | SE430200B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU514310B2 (en) * | 1976-05-21 | 1981-02-05 | Rca Corp. | Tuner with pll |
| GB1564375A (en) * | 1977-09-07 | 1980-04-10 | Marconi Co Ltd | Frequency generators |
| JPS598966B2 (en) * | 1979-04-10 | 1984-02-28 | 株式会社東芝 | Television receiver control device |
| JPS5657324A (en) * | 1979-10-16 | 1981-05-19 | Sanyo Electric Co Ltd | Digital electronic tuning system |
| JPS56162527A (en) * | 1980-05-20 | 1981-12-14 | Toshiba Corp | Controller of television receiver |
| US4476580A (en) * | 1980-06-17 | 1984-10-09 | Sanyo Electric Co., Ltd. | Automatic continuous tuning control apparatus for a receiver |
| US4521918A (en) * | 1980-11-10 | 1985-06-04 | General Electric Company | Battery saving frequency synthesizer arrangement |
| ES525161A0 (en) * | 1982-09-01 | 1984-06-16 | Rca Corp | "IMPROVEMENTS INTRODUCED IN A TUNING CONTROL DEVICE FOR A TELEVISION SYSTEM" |
| US4503465A (en) * | 1982-11-24 | 1985-03-05 | Rca Corporation | Analog signal comparator using digital circuitry |
| EP0302290B1 (en) * | 1987-08-03 | 1994-12-14 | Motorola Inc. | Automatic frequency control system |
| US9136955B2 (en) | 2009-06-30 | 2015-09-15 | Thomson Licensing | Method of resending digital signals |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL166828C (en) * | 1971-05-08 | 1981-09-15 | Matsushita Electric Ind Co Ltd | AUTOMATIC CHANNEL SELECTING DEVICE. |
| JPS4943084Y2 (en) * | 1971-06-29 | 1974-11-26 | ||
| JPS4841361A (en) * | 1971-09-28 | 1973-06-16 | ||
| JPS555729B2 (en) * | 1971-11-29 | 1980-02-08 | ||
| DE2211664A1 (en) * | 1972-03-10 | 1973-09-20 | Loewe Opta Gmbh | TUNING UNIT FOR HIGH-FREQUENCY RECEIVERS |
| JPS5228321B2 (en) * | 1972-03-15 | 1977-07-26 | ||
| US3803494A (en) * | 1972-04-07 | 1974-04-09 | Bendix Corp | Pulse tuning control system for radio receivers |
| DE2217002B2 (en) * | 1972-04-08 | 1976-04-15 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | RECEIVER FOR SINGLE-SIDED TAPE MODULATED TRANSMITTERS IN A FIXED CARRIER FREQUENCY GRID |
| DE2333851A1 (en) * | 1973-07-03 | 1975-01-23 | Standard Elektrik Lorenz Ag | METHOD AND ARRANGEMENTS FOR THE INDEPENDENT RE-ADJUSTMENT OF THE OSCILLATOR FREQUENCY, SET WITH A TUNING ARRANGEMENT, OF AN OVERLAY RECEIVER OF A PICTURE AND / OR SOUND REPLAY ARRANGEMENT |
| DE2333852A1 (en) * | 1973-07-03 | 1975-01-23 | Standard Elektrik Lorenz Ag | OVERLAY RECEIVER WITH A DIGITAL ADJUSTABLE VOTING ARRANGEMENT |
| IT1036497B (en) * | 1975-07-11 | 1979-10-30 | Indesit | EMITTER SELECTOR CIRCUIT IN A SIGNAL RECEIVER |
-
1976
- 1976-10-15 IT IT28406/76A patent/IT1073074B/en active
- 1976-11-05 GB GB46208/76A patent/GB1561544A/en not_active Expired
- 1976-11-09 CA CA000265196A patent/CA1175586A/en not_active Expired
- 1976-11-10 DE DE2651297A patent/DE2651297B2/en active Granted
- 1976-11-12 BE BE172309A patent/BE848283A/en not_active IP Right Cessation
- 1976-11-12 AU AU19581/76A patent/AU512493B2/en not_active Expired
- 1976-11-12 FR FR7634164A patent/FR2331917A1/en active Granted
- 1976-11-12 MX MX100401U patent/MX3472E/en unknown
- 1976-11-12 FI FI763252A patent/FI66269C/en not_active IP Right Cessation
- 1976-11-12 ES ES453293A patent/ES453293A1/en not_active Expired
- 1976-11-12 PL PL1976193671A patent/PL114951B1/en unknown
- 1976-11-15 NL NLAANVRAGE7612666,A patent/NL188065C/en not_active IP Right Cessation
- 1976-11-15 JP JP51137712A patent/JPS5828932B2/en not_active Expired
- 1976-11-15 AT AT0848976A patent/AT377878B/en active
-
1978
- 1978-11-24 IT IT30200/78A patent/IT1100758B/en active
-
1979
- 1979-03-09 SE SE7902170A patent/SE430200B/en not_active IP Right Cessation
-
1980
- 1980-11-14 JP JP55161310A patent/JPS5829655B2/en not_active Expired
-
1982
- 1982-01-05 FR FR8200051A patent/FR2495407B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES453293A1 (en) | 1977-11-16 |
| AU1958176A (en) | 1978-05-18 |
| MX3472E (en) | 1980-12-09 |
| CA1175586A (en) | 1984-10-02 |
| NL188065B (en) | 1991-10-16 |
| FR2495407A1 (en) | 1982-06-04 |
| JPS5828932B2 (en) | 1983-06-18 |
| GB1561544A (en) | 1980-02-20 |
| IT7830200A0 (en) | 1978-11-24 |
| SE7902170L (en) | 1979-03-09 |
| NL188065C (en) | 1992-03-16 |
| DE2651297C3 (en) | 1987-04-16 |
| AT377878B (en) | 1985-05-10 |
| FI66269B (en) | 1984-05-31 |
| FI66269C (en) | 1984-09-10 |
| NL7612666A (en) | 1977-05-17 |
| JPS5696523A (en) | 1981-08-04 |
| SE430200B (en) | 1983-10-24 |
| AU512493B2 (en) | 1980-10-16 |
| DE2651297A1 (en) | 1977-05-26 |
| BE848283A (en) | 1977-03-01 |
| FR2331917A1 (en) | 1977-06-10 |
| FR2495407B1 (en) | 1986-01-17 |
| FI763252A (en) | 1977-05-15 |
| PL114951B1 (en) | 1981-03-31 |
| JPS5261904A (en) | 1977-05-21 |
| DE2651297B2 (en) | 1979-03-29 |
| FR2331917B1 (en) | 1982-07-09 |
| ATA848976A (en) | 1984-09-15 |
| JPS5829655B2 (en) | 1983-06-24 |
| IT1073074B (en) | 1985-04-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19951031 |