CH618818A5 - - Google Patents
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- Publication number
- CH618818A5 CH618818A5 CH283177A CH283177A CH618818A5 CH 618818 A5 CH618818 A5 CH 618818A5 CH 283177 A CH283177 A CH 283177A CH 283177 A CH283177 A CH 283177A CH 618818 A5 CH618818 A5 CH 618818A5
- Authority
- CH
- Switzerland
- Prior art keywords
- tuning
- digital
- memory
- voltage
- variable
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT48484/76A IT1064110B (it) | 1976-03-09 | 1976-03-09 | Sistema di sintonia elettronica con memorizzazione digitale delle stazioni radio emittenti |
Publications (1)
Publication Number | Publication Date |
---|---|
CH618818A5 true CH618818A5 (fr) | 1980-08-15 |
Family
ID=11266833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH283177A CH618818A5 (fr) | 1976-03-09 | 1977-03-07 |
Country Status (16)
Country | Link |
---|---|
US (1) | US4119915A (fr) |
JP (1) | JPS52110501A (fr) |
AT (1) | AT368328B (fr) |
AU (1) | AU511348B2 (fr) |
BE (1) | BE852202A (fr) |
CH (1) | CH618818A5 (fr) |
DE (1) | DE2709209A1 (fr) |
DK (1) | DK101877A (fr) |
ES (1) | ES456643A1 (fr) |
FR (1) | FR2344182A1 (fr) |
GB (1) | GB1554038A (fr) |
IT (1) | IT1064110B (fr) |
NL (1) | NL7702385A (fr) |
NO (1) | NO147498C (fr) |
PT (1) | PT66266B (fr) |
SE (1) | SE415815B (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1061633B (it) * | 1976-05-03 | 1983-04-30 | Voxson Spa | Radiori cevitore o sintonizzatore munito di mezzi di memorizzazione a stato solido per una molteplicita di frequenze di ricezione |
JPS6057768B2 (ja) * | 1978-04-21 | 1985-12-17 | 株式会社東芝 | 電子選局装置 |
FI912875A (fi) * | 1991-06-14 | 1992-12-15 | Nokia Mobile Phones Ltd | Inskrivning av program i en radiotelefon |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL166828C (nl) * | 1971-05-08 | 1981-09-15 | Matsushita Electric Ind Co Ltd | Automatische kanaalkies-inrichting. |
US3737787A (en) * | 1971-06-29 | 1973-06-05 | Gen Electric | Electronic signal seeking system with rapid scan |
US3822405A (en) * | 1971-12-10 | 1974-07-02 | Matsushita Electric Ind Co Ltd | Channel selecting apparatus |
FR2175671B1 (fr) * | 1972-03-17 | 1977-04-01 | Trt Telecom Radio Electr | |
US3999131A (en) * | 1972-11-14 | 1976-12-21 | Tokyo Shibaura Electric Co., Ltd. | Channel-selecting apparatus for multichannel receivers |
NL7414564A (nl) * | 1973-11-16 | 1975-05-21 | Int Standard Electric Corp | Radio- of televisieontvanger met een zender- zoekinrichting. |
US3978411A (en) * | 1973-11-30 | 1976-08-31 | Matsushita Electric Industrial Co., Ltd. | Sweep output generator having a frequency modulated local oscillator for the station selector of a television receiver |
GB1503334A (en) * | 1974-02-25 | 1978-03-08 | Matsushita Electric Ind Co Ltd | Tuning apparatus using a voltage-dependent reactance element |
US3943449A (en) * | 1974-09-09 | 1976-03-09 | Zenith Radio Corporation | Multi-speed ramp for a varactor tuning system |
-
1976
- 1976-03-09 IT IT48484/76A patent/IT1064110B/it active
-
1977
- 1977-02-22 GB GB7450/77A patent/GB1554038A/en not_active Expired
- 1977-02-24 US US05/771,586 patent/US4119915A/en not_active Expired - Lifetime
- 1977-03-01 AU AU22785/77A patent/AU511348B2/en not_active Expired
- 1977-03-02 FR FR7706043A patent/FR2344182A1/fr active Granted
- 1977-03-03 DE DE19772709209 patent/DE2709209A1/de not_active Withdrawn
- 1977-03-03 PT PT66266A patent/PT66266B/pt unknown
- 1977-03-04 NL NL7702385A patent/NL7702385A/xx not_active Application Discontinuation
- 1977-03-07 CH CH283177A patent/CH618818A5/it not_active IP Right Cessation
- 1977-03-07 NO NO770770A patent/NO147498C/no unknown
- 1977-03-08 DK DK101877A patent/DK101877A/da not_active Application Discontinuation
- 1977-03-08 SE SE7702584A patent/SE415815B/xx unknown
- 1977-03-08 BE BE175572A patent/BE852202A/fr not_active IP Right Cessation
- 1977-03-08 JP JP2532277A patent/JPS52110501A/ja active Pending
- 1977-03-08 ES ES456643A patent/ES456643A1/es not_active Expired
- 1977-03-08 AT AT0152577A patent/AT368328B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATA152577A (de) | 1982-01-15 |
NO770770L (no) | 1977-09-12 |
IT1064110B (it) | 1985-02-18 |
JPS52110501A (en) | 1977-09-16 |
BE852202A (fr) | 1977-07-01 |
US4119915A (en) | 1978-10-10 |
PT66266A (en) | 1977-04-01 |
SE415815B (sv) | 1980-10-27 |
SE7702584L (sv) | 1977-09-10 |
PT66266B (en) | 1978-08-08 |
DE2709209A1 (de) | 1977-09-22 |
AU2278577A (en) | 1978-09-07 |
AU511348B2 (en) | 1980-08-14 |
NL7702385A (nl) | 1977-09-13 |
ES456643A1 (es) | 1978-01-16 |
FR2344182B1 (fr) | 1981-08-14 |
NO147498B (no) | 1983-01-10 |
GB1554038A (en) | 1979-10-17 |
DK101877A (da) | 1977-09-10 |
AT368328B (de) | 1982-10-11 |
FR2344182A1 (fr) | 1977-10-07 |
NO147498C (no) | 1983-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |