DE3821716C2 - - Google Patents
Info
- Publication number
- DE3821716C2 DE3821716C2 DE3821716A DE3821716A DE3821716C2 DE 3821716 C2 DE3821716 C2 DE 3821716C2 DE 3821716 A DE3821716 A DE 3821716A DE 3821716 A DE3821716 A DE 3821716A DE 3821716 C2 DE3821716 C2 DE 3821716C2
- Authority
- DE
- Germany
- Prior art keywords
- coil
- capacitor
- band
- filter
- frequency range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- H03J5/24—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
- H03J5/242—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 used exclusively for band selection
- H03J5/244—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 used exclusively for band selection using electronic means
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Filters And Equalizers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Superheterodyne Receivers (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3821716A DE3821716A1 (de) | 1988-06-28 | 1988-06-28 | Fernsehtuner mit einer bandfilterschaltung |
EP89109901A EP0348680A3 (de) | 1988-06-28 | 1989-06-01 | Fernsehtuner mit einer Bandfilterschaltung |
US07/368,540 US5122878A (en) | 1988-06-28 | 1989-06-20 | Television tuner and circuitry for switching between two frequency ranges |
JP1162838A JP2810881B2 (ja) | 1988-06-28 | 1989-06-27 | 帯域フイルタ回路付テレビチューナ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3821716A DE3821716A1 (de) | 1988-06-28 | 1988-06-28 | Fernsehtuner mit einer bandfilterschaltung |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3821716A1 DE3821716A1 (de) | 1990-01-04 |
DE3821716C2 true DE3821716C2 (US20020128544A1-20020912-P00008.png) | 1990-11-29 |
Family
ID=6357389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3821716A Granted DE3821716A1 (de) | 1988-06-28 | 1988-06-28 | Fernsehtuner mit einer bandfilterschaltung |
Country Status (4)
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2251147B (en) * | 1990-10-01 | 1994-10-26 | Motorola Inc | Filter switching circuit |
US5402138A (en) * | 1991-05-30 | 1995-03-28 | Conifer Corporation | Integrated MMDS/MDS antenna and dual band down converter |
US5437052A (en) * | 1993-04-16 | 1995-07-25 | Conifer Corporation | MMDS over-the-air bi-directional TV/data transmission system and method therefor |
SG55266A1 (en) * | 1997-01-15 | 1999-04-27 | Koninkl Philips Electronics Nv | Multi-tuner receiver |
JPH11127086A (ja) * | 1997-08-19 | 1999-05-11 | Alps Electric Co Ltd | Uhf及びvhf共用チューナ |
JP3183332B2 (ja) * | 1997-09-30 | 2001-07-09 | 日本電気株式会社 | テレビチューナ、チューナic、テレビチューナの制御方法 |
US6246866B1 (en) * | 1998-12-04 | 2001-06-12 | Motorola, Inc. | Dual band receiver |
US7068329B1 (en) * | 1999-08-31 | 2006-06-27 | Ati International Srl | Method and system for providing a video signal |
EP1156582A3 (en) * | 2000-05-16 | 2004-04-28 | Nokia Corporation | Transmitter/receiver chain impedance optimization |
DE10102201C2 (de) * | 2001-01-18 | 2003-05-08 | Epcos Ag | Elektrisches Schaltmodul, Schaltmodulanordnung und verwendung des Schaltmoduls und der Schaltmodulanordnung |
JP2002280911A (ja) * | 2001-03-19 | 2002-09-27 | Nec Corp | 送信回路及びそれを搭載した通信端末 |
US7492565B2 (en) * | 2001-09-28 | 2009-02-17 | Epcos Ag | Bandpass filter electrostatic discharge protection device |
WO2003030383A1 (de) * | 2001-09-28 | 2003-04-10 | Epcos Ag | Schaltungsanordnung, schaltmodul mit der schaltungsanordnung und verwendung des schaltmoduls |
US20050059371A1 (en) * | 2001-09-28 | 2005-03-17 | Christian Block | Circuit arrangement, switching module comprising said circuit arrangement and use of switching module |
DE10246098A1 (de) | 2002-10-02 | 2004-04-22 | Epcos Ag | Schaltungsanordnung |
DE10300892A1 (de) * | 2003-01-13 | 2004-07-22 | Deutsche Thomson-Brandt Gmbh | Schaltbares abstimmbares Bandfilter mit optimiertem Frequenzgang |
JP3106226U (ja) * | 2004-06-28 | 2004-12-16 | アルプス電気株式会社 | テレビジョンチューナ |
JP2007068143A (ja) * | 2005-08-05 | 2007-03-15 | Matsushita Electric Ind Co Ltd | アンテナ整合器とこれを用いた高周波受信装置 |
US9793935B2 (en) * | 2015-07-02 | 2017-10-17 | Mediatek Inc. | Multi-mixer system and method for reducing interference within multi-mixer system |
EP3403327A1 (en) | 2016-01-15 | 2018-11-21 | Telefonaktiebolaget LM Ericsson (publ.) | Miniature tunable filters |
US10419749B2 (en) * | 2017-06-20 | 2019-09-17 | Ethertronics, Inc. | Host-independent VHF-UHF active antenna system |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2412689C3 (de) * | 1974-03-16 | 1978-04-27 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung zur Abstimmung und Bereichs- bzw. Bandumschaltung eines HF-Schwingungskreises |
US3962643A (en) * | 1974-08-05 | 1976-06-08 | Zenith Radio Corporation | Abrupt junction varactor diode television tuner |
JPS5823978B2 (ja) * | 1975-11-11 | 1983-05-18 | ソニー株式会社 | チユ−ナ |
US4247953A (en) * | 1977-07-01 | 1981-01-27 | Hitachi, Ltd. | Tunable high-frequency input circuit |
JPS5413205A (en) * | 1977-07-01 | 1979-01-31 | Hitachi Ltd | Automatic channel tuner |
GB2058505B (en) * | 1977-07-05 | 1982-09-15 | Texas Instruments Inc | Channel selector for a television receiver |
GB2000926B (en) * | 1977-07-05 | 1982-04-28 | Texas Instruments Inc | Channel selector for television receiver |
JPS6046895B2 (ja) * | 1978-08-04 | 1985-10-18 | アルプス電気株式会社 | 電子同調チユ−ナ |
US4419768A (en) * | 1980-09-30 | 1983-12-06 | Matsushita Electric Industrial Company, Limited | Wideband tuner for VHF, CATV and UHF television signals |
JPS5816944U (ja) * | 1981-07-27 | 1983-02-02 | 日本電気ホームエレクトロニクス株式会社 | Vhf電子チユ−ナ |
US4408348A (en) * | 1981-08-19 | 1983-10-04 | Rca Corporation | Multiband tuning system for a television receiver |
DE3144390A1 (de) * | 1981-11-07 | 1983-05-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schwingkreisschaltung |
US4418427A (en) * | 1982-03-30 | 1983-11-29 | Rca Corporation | Tuning system for a multi-band television receiver |
US4470071A (en) * | 1982-08-30 | 1984-09-04 | Rca Corporation | Television sound detection system using a frequency translation phase-locked loop |
JPS5959032U (ja) * | 1982-10-13 | 1984-04-17 | アルプス電気株式会社 | 同調回路 |
DE3507865A1 (de) * | 1985-03-06 | 1986-09-11 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung fuer einen tuner zur umschaltung mehrerer frequenzbereiche |
DE3509517A1 (de) * | 1985-03-16 | 1986-09-25 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung fuer einen tuner zur umschaltung zweier frequenzbaender |
DE3509516C1 (de) * | 1985-03-16 | 1986-09-18 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Schaltungsanordnung der Eingangsstufen eines Fernsehtuners |
DE3538921A1 (de) * | 1985-11-02 | 1987-05-14 | Telefunken Electronic Gmbh | Fernsehtuner |
JPS62209910A (ja) * | 1986-03-11 | 1987-09-16 | Matsushita Electric Ind Co Ltd | 帯域消去ろ波器 |
JPS62152519U (US20020128544A1-20020912-P00008.png) * | 1986-03-19 | 1987-09-28 | ||
JPH0510412Y2 (US20020128544A1-20020912-P00008.png) * | 1986-04-02 | 1993-03-15 | ||
JPS6326124U (US20020128544A1-20020912-P00008.png) * | 1986-07-31 | 1988-02-20 | ||
JPS6352510A (ja) * | 1986-08-22 | 1988-03-05 | Toshiba Corp | 電子同調チユ−ナ |
GB2196197B (en) * | 1986-10-01 | 1990-09-19 | Telefunken Electronic Gmbh | Television tuner |
DE3633384A1 (de) * | 1986-10-01 | 1988-04-14 | Telefunken Electronic Gmbh | Fernsehtuner fuer drei unterschiedliche frequenzbereiche |
-
1988
- 1988-06-28 DE DE3821716A patent/DE3821716A1/de active Granted
-
1989
- 1989-06-01 EP EP89109901A patent/EP0348680A3/de not_active Withdrawn
- 1989-06-20 US US07/368,540 patent/US5122878A/en not_active Expired - Fee Related
- 1989-06-27 JP JP1162838A patent/JP2810881B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3821716A1 (de) | 1990-01-04 |
EP0348680A3 (de) | 1990-05-16 |
JPH0258415A (ja) | 1990-02-27 |
JP2810881B2 (ja) | 1998-10-15 |
EP0348680A2 (de) | 1990-01-03 |
US5122878A (en) | 1992-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: TEMIC TELEFUNKEN MICROELECTRONIC GMBH, 7100 HEILBR |
|
8365 | Fully valid after opposition proceedings | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: TEMIC TELEFUNKEN HOCHFREQUENZTECHNIK GMBH, 85098 G |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: MICROTUNE GMBH, 85055 INGOLSTADT, DE |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: MICROTUNE GMBH & CO. KG, 85055 INGOLSTADT, DE |
|
8339 | Ceased/non-payment of the annual fee |