IT1212744B - Circuito per l'attenuazione dei disturbi in un radioricevitore mediante l'impiego di un filtro passa-basso a banda passante regolabile. - Google Patents
Circuito per l'attenuazione dei disturbi in un radioricevitore mediante l'impiego di un filtro passa-basso a banda passante regolabile.Info
- Publication number
- IT1212744B IT1212744B IT8321173A IT2117383A IT1212744B IT 1212744 B IT1212744 B IT 1212744B IT 8321173 A IT8321173 A IT 8321173A IT 2117383 A IT2117383 A IT 2117383A IT 1212744 B IT1212744 B IT 1212744B
- Authority
- IT
- Italy
- Prior art keywords
- attenuation
- interference
- circuit
- pass filter
- radio receiver
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
- H03G5/16—Automatic control
- H03G5/18—Automatic control in untuned amplifiers
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8321173A IT1212744B (it) | 1983-05-19 | 1983-05-19 | Circuito per l'attenuazione dei disturbi in un radioricevitore mediante l'impiego di un filtro passa-basso a banda passante regolabile. |
GB08411875A GB2140235A (en) | 1983-05-19 | 1984-05-10 | Circuits for reducing noise in electromagnetic wave receivers |
NL8401564A NL8401564A (nl) | 1983-05-19 | 1984-05-15 | Schakeling ter vermindering van ruis in een radio-ontvanger, door het gebruik van een laag doorlatend filter met een instelbare doorlaatband. |
DE19843418037 DE3418037A1 (de) | 1983-05-19 | 1984-05-15 | Schaltung zur daempfung der stoerungen in einem funkempfaenger durch verwendung eines tiefpassfilters mit einstellbarem durchlassbereich |
FR8407763A FR2546350A1 (fr) | 1983-05-19 | 1984-05-18 | Circuit pour l'attenuation des perturbations dans un recepteur de radio grace a l'utilisation d'un filtre passe-bas a bande passante reglable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8321173A IT1212744B (it) | 1983-05-19 | 1983-05-19 | Circuito per l'attenuazione dei disturbi in un radioricevitore mediante l'impiego di un filtro passa-basso a banda passante regolabile. |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8321173A0 IT8321173A0 (it) | 1983-05-19 |
IT1212744B true IT1212744B (it) | 1989-11-30 |
Family
ID=11177861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8321173A IT1212744B (it) | 1983-05-19 | 1983-05-19 | Circuito per l'attenuazione dei disturbi in un radioricevitore mediante l'impiego di un filtro passa-basso a banda passante regolabile. |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3418037A1 (de) |
FR (1) | FR2546350A1 (de) |
GB (1) | GB2140235A (de) |
IT (1) | IT1212744B (de) |
NL (1) | NL8401564A (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4591805A (en) * | 1984-05-30 | 1986-05-27 | General Electric Company | Adaptive bandwidth amplifier |
JPH05503409A (ja) * | 1990-10-10 | 1993-06-03 | モトローラ・インコーポレイテッド | 能動フィルタ回路 |
JPH06164659A (ja) * | 1992-11-27 | 1994-06-10 | Nec Corp | 検波回路 |
EP0797872A4 (de) * | 1994-11-29 | 1999-03-31 | Gallagher Group Ltd | Verfahren zur elektronischen kontrolle |
FI99068C (fi) * | 1995-01-27 | 1997-09-25 | Nokia Mobile Phones Ltd | Menetelmä kaiutintoiminnan parantamiseksi matkapuhelimessa sekä matkapuhelin |
GB2356305B (en) * | 1996-07-11 | 2001-07-25 | Nec Corp | Portable telephone capable of decreasing noise |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB428772A (en) * | 1932-10-19 | 1935-05-20 | Marconi Wireless Telegraph Co | Improvements in or relating to frequency discriminating circuit arrangements suitable for use in radio receivers |
US3798559A (en) * | 1971-04-20 | 1974-03-19 | Matsushita Electric Ind Co Ltd | Noise reduction system |
DE2452360A1 (de) * | 1974-11-05 | 1976-05-06 | Blaupunkt Werke Gmbh | Schaltungsanordnung zur rauschunterdrueckung in einem empfangsgeraet |
JPS539403A (en) * | 1976-07-14 | 1978-01-27 | Pioneer Electronic Corp | Fm stereophonic receiver |
JPS54122017A (en) * | 1978-03-16 | 1979-09-21 | Clarion Co Ltd | Noise reducing circuit |
US4221930A (en) * | 1979-04-11 | 1980-09-09 | Rca Corporation | FM Defect compensation apparatus |
JPS58151724A (ja) * | 1982-03-05 | 1983-09-09 | Nec Corp | 受信機 |
-
1983
- 1983-05-19 IT IT8321173A patent/IT1212744B/it active
-
1984
- 1984-05-10 GB GB08411875A patent/GB2140235A/en not_active Withdrawn
- 1984-05-15 NL NL8401564A patent/NL8401564A/nl not_active Application Discontinuation
- 1984-05-15 DE DE19843418037 patent/DE3418037A1/de not_active Withdrawn
- 1984-05-18 FR FR8407763A patent/FR2546350A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
DE3418037A1 (de) | 1984-11-22 |
IT8321173A0 (it) | 1983-05-19 |
GB2140235A (en) | 1984-11-21 |
NL8401564A (nl) | 1984-12-17 |
FR2546350A1 (fr) | 1984-11-23 |
GB8411875D0 (en) | 1984-06-13 |
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