SE8001394L - Radiomottagare med elektronisk avstemning - Google Patents
Radiomottagare med elektronisk avstemningInfo
- Publication number
- SE8001394L SE8001394L SE8001394A SE8001394A SE8001394L SE 8001394 L SE8001394 L SE 8001394L SE 8001394 A SE8001394 A SE 8001394A SE 8001394 A SE8001394 A SE 8001394A SE 8001394 L SE8001394 L SE 8001394L
- Authority
- SE
- Sweden
- Prior art keywords
- band
- circuits
- channel selection
- receiving frequency
- radio receivers
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
-
- 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
- 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
- H03J5/246—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 using electronic means
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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53010133A JPS5833724B2 (ja) | 1978-01-31 | 1978-01-31 | 電子同調ラジオ受信機 |
JP1142978U JPS5830329Y2 (ja) | 1978-01-31 | 1978-01-31 | スイツチング回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8001394L true SE8001394L (sv) | 1980-02-22 |
SE423013B SE423013B (sv) | 1982-04-05 |
Family
ID=26345338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8001394A SE423013B (sv) | 1978-01-31 | 1980-02-22 | Radiomottagare av flerbandstyp med elektronisk avstemning |
Country Status (10)
Country | Link |
---|---|
US (1) | US4313214A (sv) |
EP (1) | EP0011646B1 (sv) |
AU (1) | AU511400B2 (sv) |
CA (1) | CA1142660A (sv) |
CH (1) | CH648164A5 (sv) |
DE (1) | DE2934892A1 (sv) |
GB (1) | GB2040130B (sv) |
NL (1) | NL189020C (sv) |
SE (1) | SE423013B (sv) |
WO (1) | WO1979000570A1 (sv) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4291413A (en) * | 1979-09-28 | 1981-09-22 | Rca Corporation | Search type tuning system with direct address channel selection apparatus |
US4363136A (en) * | 1980-03-19 | 1982-12-07 | Sanyo Electric Co., Ltd. | Station selecting apparatus |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3931579A (en) * | 1974-04-01 | 1976-01-06 | Zenith Radio Corporation | Digital signal seeking tuning system |
US3971991A (en) * | 1974-09-04 | 1976-07-27 | Zenith Radio Corporation | Television tuning system with varactor malfunction detection |
US3943449A (en) * | 1974-09-09 | 1976-03-09 | Zenith Radio Corporation | Multi-speed ramp for a varactor tuning system |
GB1521899A (en) * | 1974-09-25 | 1978-08-16 | Texas Instruments Inc | Television channel number display circuit |
NL182359C (nl) * | 1974-12-24 | 1988-02-16 | Fujitsu Ten Ltd | Radio-ontvanger. |
US4081752A (en) * | 1975-05-30 | 1978-03-28 | Sanyo Electric Co., Ltd. | Digital frequency synthesizer receiver |
US4207529A (en) * | 1976-04-08 | 1980-06-10 | Fujitsu Ten Limited | Radio receiver |
JPS52123115A (en) * | 1976-04-09 | 1977-10-17 | Fujitsu Ten Ltd | Automatic channel selector |
JPS5319707A (en) * | 1976-08-06 | 1978-02-23 | Fujitsu Ten Ltd | Double band automatic tuning receiver |
JPS5380108A (en) * | 1976-12-24 | 1978-07-15 | Fujitsu Ten Ltd | Automatic channel selecting receiver |
-
1979
- 1979-01-23 AU AU43574/79A patent/AU511400B2/en not_active Expired
- 1979-01-23 CA CA000320136A patent/CA1142660A/en not_active Expired
- 1979-01-29 WO PCT/JP1979/000019 patent/WO1979000570A1/ja unknown
- 1979-01-29 CH CH8935/79A patent/CH648164A5/de not_active IP Right Cessation
- 1979-01-29 GB GB8004175A patent/GB2040130B/en not_active Expired
- 1979-01-29 DE DE792934892A patent/DE2934892A1/de not_active Ceased
- 1979-01-30 NL NLAANVRAGE7900715,A patent/NL189020C/xx not_active IP Right Cessation
- 1979-08-28 EP EP79900135A patent/EP0011646B1/en not_active Expired
- 1979-09-24 US US06/217,322 patent/US4313214A/en not_active Expired - Lifetime
-
1980
- 1980-02-22 SE SE8001394A patent/SE423013B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0011646B1 (en) | 1982-09-01 |
GB2040130A (en) | 1980-08-20 |
WO1979000570A1 (en) | 1979-08-23 |
NL189020B (nl) | 1992-07-01 |
EP0011646A1 (en) | 1980-06-11 |
US4313214A (en) | 1982-01-26 |
NL189020C (nl) | 1992-12-01 |
EP0011646A4 (en) | 1980-06-10 |
AU511400B2 (en) | 1980-08-14 |
AU4357479A (en) | 1979-08-09 |
DE2934892A1 (en) | 1980-12-04 |
GB2040130B (en) | 1983-03-30 |
NL7900715A (nl) | 1979-08-02 |
CH648164A5 (de) | 1985-02-28 |
CA1142660A (en) | 1983-03-08 |
SE423013B (sv) | 1982-04-05 |
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