DE69424407D1 - Empfänger mit regelbarem bandpassfilter - Google Patents
Empfänger mit regelbarem bandpassfilterInfo
- Publication number
- DE69424407D1 DE69424407D1 DE69424407T DE69424407T DE69424407D1 DE 69424407 D1 DE69424407 D1 DE 69424407D1 DE 69424407 T DE69424407 T DE 69424407T DE 69424407 T DE69424407 T DE 69424407T DE 69424407 D1 DE69424407 D1 DE 69424407D1
- Authority
- DE
- Germany
- Prior art keywords
- receiver
- pass filter
- band pass
- adjustable band
- adjustable
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H19/00—Networks using time-varying elements, e.g. N-path filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
- H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Superheterodyne Receivers (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939326464A GB9326464D0 (en) | 1993-12-24 | 1993-12-24 | Receiver having an adjustable bandwidth filter |
PCT/IB1994/000415 WO1995019073A2 (en) | 1993-12-24 | 1994-12-13 | Receiver having an adjustable bandwidth filter |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69424407D1 true DE69424407D1 (de) | 2000-06-15 |
DE69424407T2 DE69424407T2 (de) | 2000-12-07 |
Family
ID=10747237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69424407T Expired - Lifetime DE69424407T2 (de) | 1993-12-24 | 1994-12-13 | Empfänger mit regelbarem bandpassfilter |
Country Status (7)
Country | Link |
---|---|
US (1) | US5604927A (de) |
EP (1) | EP0686324B1 (de) |
JP (1) | JP3701306B2 (de) |
KR (1) | KR100323925B1 (de) |
DE (1) | DE69424407T2 (de) |
GB (1) | GB9326464D0 (de) |
WO (1) | WO1995019073A2 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6072994A (en) * | 1995-08-31 | 2000-06-06 | Northrop Grumman Corporation | Digitally programmable multifunction radio system architecture |
US5909193A (en) * | 1995-08-31 | 1999-06-01 | Northrop Grumman Corporation | Digitally programmable radio modules for navigation systems |
US5859878A (en) * | 1995-08-31 | 1999-01-12 | Northrop Grumman Corporation | Common receive module for a programmable digital radio |
US5805988A (en) * | 1995-12-22 | 1998-09-08 | Microtune, Inc. | System and method for switching an RF signal between mixers |
US5673003A (en) * | 1996-03-29 | 1997-09-30 | Motorola, Inc. | Amplifier circuit having a variable bandwidth |
US6633550B1 (en) | 1997-02-20 | 2003-10-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio transceiver on a chip |
JP3164008B2 (ja) * | 1997-03-04 | 2001-05-08 | 日本電気株式会社 | 無線受信機 |
JP3413060B2 (ja) | 1997-05-13 | 2003-06-03 | 松下電器産業株式会社 | 直接変換受信機 |
US6061551A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for down-converting electromagnetic signals |
US7515896B1 (en) | 1998-10-21 | 2009-04-07 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
US6853690B1 (en) | 1999-04-16 | 2005-02-08 | Parkervision, Inc. | Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments |
US6879817B1 (en) | 1999-04-16 | 2005-04-12 | Parkervision, Inc. | DC offset, re-radiation, and I/Q solutions using universal frequency translation technology |
US7110444B1 (en) | 1999-08-04 | 2006-09-19 | Parkervision, Inc. | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations |
US7693230B2 (en) | 1999-04-16 | 2010-04-06 | Parkervision, Inc. | Apparatus and method of differential IQ frequency up-conversion |
US7065162B1 (en) | 1999-04-16 | 2006-06-20 | Parkervision, Inc. | Method and system for down-converting an electromagnetic signal, and transforms for same |
US8295406B1 (en) | 1999-08-04 | 2012-10-23 | Parkervision, Inc. | Universal platform module for a plurality of communication protocols |
EP1098449A1 (de) * | 1999-11-04 | 2001-05-09 | Siemens Aktiengesellschaft | Funkemfänger für des Empfangs Signalen mit verschiedenenBandbreiten und in verschiedenen Frequenzbändern |
US6614806B1 (en) * | 2000-01-06 | 2003-09-02 | Motorola Inc. | Method and apparatus for interfering receiver signal overload protection |
US7010286B2 (en) | 2000-04-14 | 2006-03-07 | Parkervision, Inc. | Apparatus, system, and method for down-converting and up-converting electromagnetic signals |
US7454453B2 (en) | 2000-11-14 | 2008-11-18 | Parkervision, Inc. | Methods, systems, and computer program products for parallel correlation and applications thereof |
US6469574B1 (en) * | 2001-01-26 | 2002-10-22 | Applied Micro Circuits Corporation | Selectable equalization system and method |
US6928249B2 (en) * | 2001-02-15 | 2005-08-09 | Agilent Technologies, Inc. | Fiber optic receiver with an adjustable response preamplifier |
DE10114779A1 (de) * | 2001-03-26 | 2002-10-24 | Infineon Technologies Ag | Sende-und Empfangseinheit |
US6570447B2 (en) * | 2001-05-25 | 2003-05-27 | Infineon Technologies Ag | Programmable logarithmic gain adjustment for open-loop amplifiers |
KR20030016747A (ko) * | 2001-08-21 | 2003-03-03 | 엘지전자 주식회사 | 이동통신 단말기의 광대역 수신장치 |
US7072427B2 (en) | 2001-11-09 | 2006-07-04 | Parkervision, Inc. | Method and apparatus for reducing DC offsets in a communication system |
US7379883B2 (en) | 2002-07-18 | 2008-05-27 | Parkervision, Inc. | Networking methods and systems |
US7460584B2 (en) | 2002-07-18 | 2008-12-02 | Parkervision, Inc. | Networking methods and systems |
TWI228925B (en) * | 2003-04-17 | 2005-03-01 | Realtek Semiconductor Corp | Image signal processing method and device thereof |
TWI257202B (en) | 2005-05-04 | 2006-06-21 | Realtek Semiconductor Corp | Filter of tunable bandwidth |
FR2902583A1 (fr) * | 2006-06-20 | 2007-12-21 | St Microelectronics Sa | Amplificateur melangeur et circuit frontal radiofrequence pourvu d'un tel amplificateur melangeur |
US20080113644A1 (en) * | 2006-11-14 | 2008-05-15 | Saverio Trotta | Low Noise Mixer |
US9444418B1 (en) * | 2013-03-15 | 2016-09-13 | Rockwell Collins, Inc. | Frequency enhanced active transistor |
US9544070B2 (en) * | 2014-10-06 | 2017-01-10 | Rohde & Schwarz Gmbh & Co. Kg | Frequency-converting sensor and system for providing a radio frequency signal parameter |
WO2019126218A1 (en) | 2017-12-18 | 2019-06-27 | Tris Pharma, Inc. | Modified release drug powder composition comprising gastro-retentive raft forming systems having trigger pulse drug release |
IL275312B1 (en) | 2017-12-18 | 2024-05-01 | Tris Pharma Inc | GHB pharmacy preparations containing a system that creates a floating integrated penetrating polymer network |
WO2019126216A1 (en) | 2017-12-18 | 2019-06-27 | Tris Phama, Inc. | Pharmaceutical compositions comprising a floating interpenetrating polymer network forming system |
US11337920B2 (en) | 2017-12-18 | 2022-05-24 | Tris Pharma, Inc. | Pharmaceutical composition comprising GHB gastro-retentive raft forming systems having trigger pulse drug release |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5610021Y2 (de) * | 1975-05-28 | 1981-03-05 | ||
JPS6218809A (ja) * | 1985-07-18 | 1987-01-27 | Toshiba Corp | チユ−ナagc回路 |
US4905306A (en) * | 1988-02-26 | 1990-02-27 | Rca Licensing Corporation | Filter switching arrangement for a tuner |
JPH0250624A (ja) * | 1988-08-12 | 1990-02-20 | Sanyo Electric Co Ltd | 中間周波帯域切換装置 |
TW263640B (de) * | 1992-06-26 | 1995-11-21 | Philips Electronics Nv | |
GB2268846A (en) * | 1992-07-08 | 1994-01-19 | Ics Electronics Ltd | Eliminating band-pass filters from two tone binary data receivers |
-
1993
- 1993-12-24 GB GB939326464A patent/GB9326464D0/en active Pending
-
1994
- 1994-12-13 DE DE69424407T patent/DE69424407T2/de not_active Expired - Lifetime
- 1994-12-13 EP EP95901574A patent/EP0686324B1/de not_active Expired - Lifetime
- 1994-12-13 JP JP51838995A patent/JP3701306B2/ja not_active Expired - Fee Related
- 1994-12-13 KR KR1019950703545A patent/KR100323925B1/ko not_active IP Right Cessation
- 1994-12-13 WO PCT/IB1994/000415 patent/WO1995019073A2/en active IP Right Grant
- 1994-12-22 US US08/362,621 patent/US5604927A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0686324A1 (de) | 1995-12-13 |
JPH08507430A (ja) | 1996-08-06 |
JP3701306B2 (ja) | 2005-09-28 |
DE69424407T2 (de) | 2000-12-07 |
KR100323925B1 (ko) | 2002-06-20 |
WO1995019073A3 (en) | 1995-08-17 |
US5604927A (en) | 1997-02-18 |
EP0686324B1 (de) | 2000-05-10 |
GB9326464D0 (en) | 1994-02-23 |
KR960701551A (ko) | 1996-02-24 |
WO1995019073A2 (en) | 1995-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Representative=s name: EISENFUEHR, SPEISER & PARTNER, 10178 BERLIN |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: NXP B.V., EINDHOVEN, NL |