CH615541A5 - - Google Patents
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- Publication number
- CH615541A5 CH615541A5 CH547177A CH547177A CH615541A5 CH 615541 A5 CH615541 A5 CH 615541A5 CH 547177 A CH547177 A CH 547177A CH 547177 A CH547177 A CH 547177A CH 615541 A5 CH615541 A5 CH 615541A5
- Authority
- CH
- Switzerland
- Prior art keywords
- tuning
- memory
- voltage
- part according
- digital
- 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
- H03J5/0254—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 transfered to a D/A converter
- H03J5/0263—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 transfered to a D/A converter the digital values being held in an auxiliary non erasable memory
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT49305/76A IT1061633B (it) | 1976-05-03 | 1976-05-03 | Radiori cevitore o sintonizzatore munito di mezzi di memorizzazione a stato solido per una molteplicita di frequenze di ricezione |
Publications (1)
Publication Number | Publication Date |
---|---|
CH615541A5 true CH615541A5 (ja) | 1980-01-31 |
Family
ID=11270275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH547177A CH615541A5 (ja) | 1976-05-03 | 1977-05-02 |
Country Status (14)
Country | Link |
---|---|
US (1) | US4137502A (ja) |
AU (1) | AU512370B2 (ja) |
BE (1) | BE854203A (ja) |
CH (1) | CH615541A5 (ja) |
DE (1) | DE2719152A1 (ja) |
DK (1) | DK190877A (ja) |
ES (1) | ES458384A1 (ja) |
FR (1) | FR2350733A1 (ja) |
GB (1) | GB1550307A (ja) |
IT (1) | IT1061633B (ja) |
NL (1) | NL7704816A (ja) |
NO (1) | NO771408L (ja) |
PT (1) | PT66458B (ja) |
SE (1) | SE7705065L (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1108164B (it) * | 1978-05-22 | 1985-12-02 | Indesit | Dispositivo per la sintonia di un televisore |
JPS5830326Y2 (ja) * | 1978-09-19 | 1983-07-04 | ソニー株式会社 | 表示装置 |
DE2913366C2 (de) * | 1979-04-03 | 1983-10-06 | Walter Dittel GmbH, 8910 Landsberg | Funkgerät |
CA1173176A (en) * | 1979-06-04 | 1984-08-21 | Isao Fujimoto | Tuner apparatus |
US4281349A (en) * | 1980-04-29 | 1981-07-28 | Rca Corporation | Power supply arrangement for a tuning system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5325721B2 (ja) * | 1973-11-07 | 1978-07-28 | ||
DE2356858C2 (de) * | 1973-11-14 | 1980-09-25 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Schaltung zum Programmieren digitaler Speicher mit Analogausgang in Fernseh- oder Rundfunkempfängern |
US3979680A (en) * | 1973-11-15 | 1976-09-07 | Matsushita Electric Industrial Co., Ltd. | Channel selector |
NL7414565A (nl) * | 1973-11-16 | 1975-05-21 | Int Standard Electric Corp | Radio- of televisieontvanger. |
US3835424A (en) * | 1973-11-28 | 1974-09-10 | Motorola Inc | Channel indicator and display arrangement utilizing d-c tuning voltages of varactor tuner |
SE7406277L (sv) * | 1974-05-10 | 1975-11-11 | Luxor Industri Ab | Programmerbar spenningskella. |
JPS5415164B2 (ja) * | 1974-05-20 | 1979-06-13 | ||
JPS5513616B2 (ja) * | 1975-02-06 | 1980-04-10 | ||
IT1064110B (it) * | 1976-03-09 | 1985-02-18 | Voxson Spa | Sistema di sintonia elettronica con memorizzazione digitale delle stazioni radio emittenti |
-
1976
- 1976-05-03 IT IT49305/76A patent/IT1061633B/it active
-
1977
- 1977-04-18 GB GB15938/77A patent/GB1550307A/en not_active Expired
- 1977-04-20 PT PT66458A patent/PT66458B/pt unknown
- 1977-04-21 AU AU24513/77A patent/AU512370B2/en not_active Expired
- 1977-04-25 NO NO771408A patent/NO771408L/no unknown
- 1977-04-27 US US05/791,251 patent/US4137502A/en not_active Expired - Lifetime
- 1977-04-29 DE DE19772719152 patent/DE2719152A1/de not_active Withdrawn
- 1977-05-02 SE SE7705065A patent/SE7705065L/xx unknown
- 1977-05-02 FR FR7713201A patent/FR2350733A1/fr active Granted
- 1977-05-02 NL NL7704816A patent/NL7704816A/xx not_active Application Discontinuation
- 1977-05-02 DK DK190877A patent/DK190877A/da not_active Application Discontinuation
- 1977-05-02 ES ES458384A patent/ES458384A1/es not_active Expired
- 1977-05-02 CH CH547177A patent/CH615541A5/de not_active IP Right Cessation
- 1977-05-03 BE BE177217A patent/BE854203A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE7705065L (sv) | 1977-11-04 |
DE2719152A1 (de) | 1977-11-24 |
GB1550307A (en) | 1979-08-08 |
AU512370B2 (en) | 1980-10-09 |
PT66458B (fr) | 1978-09-25 |
ES458384A1 (es) | 1978-02-16 |
AU2451377A (en) | 1978-10-26 |
NL7704816A (nl) | 1977-11-07 |
US4137502A (en) | 1979-01-30 |
BE854203A (fr) | 1977-09-01 |
FR2350733A1 (fr) | 1977-12-02 |
IT1061633B (it) | 1983-04-30 |
PT66458A (fr) | 1977-05-01 |
DK190877A (da) | 1977-11-04 |
NO771408L (no) | 1977-11-04 |
FR2350733B1 (ja) | 1981-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |