NO990772L - Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignal - Google Patents
Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignalInfo
- Publication number
- NO990772L NO990772L NO990772A NO990772A NO990772L NO 990772 L NO990772 L NO 990772L NO 990772 A NO990772 A NO 990772A NO 990772 A NO990772 A NO 990772A NO 990772 L NO990772 L NO 990772L
- Authority
- NO
- Norway
- Prior art keywords
- carrier
- transmission system
- analog
- low probability
- digitizing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- External Artificial Organs (AREA)
- Dc Digital Transmission (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Noise Elimination (AREA)
- Radar Systems Or Details Thereof (AREA)
- Transceivers (AREA)
Abstract
Idet et multibærersignal mottas, samples det og digitali- seres før FFT-prosessering (eller wavelet transformerings- prosessering). Multibærersignaler består av mange smale båndbølgebærere som overfører data via en bredbåndskanal. Amplitydefordelingen av summen av alle de individuelle bærere er Gausiansk. Dette betyr at høye amplidyder fore- kommer med lav sannsynlighet. For tiden har analoge til digitale omdannere et begrenset dynamisk område. Det er derfor normalt praksis å tilveiebringe et kompromiss mellom kutting og kvantifiseringstøy. Dette betyr at ugunstige effekter på grov kvantifisering må balanseres mot signal- forstyrrelser forårsaket av tap av lav-sannsynlighets høyamplitydesignaler.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9603192A SE506639C2 (sv) | 1996-05-24 | 1996-09-02 | Förbättringar av, eller med avseende på, multibärvågssystem |
PCT/SE1997/001455 WO1998010550A2 (en) | 1996-09-02 | 1997-09-01 | Improvements in, or relating to, multi-carrier transmission systems |
Publications (2)
Publication Number | Publication Date |
---|---|
NO990772D0 NO990772D0 (no) | 1999-02-19 |
NO990772L true NO990772L (no) | 1999-04-29 |
Family
ID=20403750
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO990772A NO990772L (no) | 1996-09-02 | 1999-02-19 | Mottaker og transceiver for anvendelse i et multi-bµrer transmisjonssystem og fremgangsmÕte for Õ digitalisere et analogt multi-bµrersignal |
Country Status (7)
Country | Link |
---|---|
US (1) | US6466629B1 (no) |
EP (1) | EP0923823B1 (no) |
JP (1) | JP4130995B2 (no) |
AT (1) | ATE227913T1 (no) |
DE (1) | DE69717128T2 (no) |
NO (1) | NO990772L (no) |
WO (1) | WO1998010550A2 (no) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
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GB9827601D0 (en) | 1998-12-15 | 1999-02-10 | Northern Telecom Ltd | A power line communications system and method of operation thereof |
SE9903235L (sv) * | 1999-09-10 | 2001-03-11 | Ericsson Telefon Ab L M | Förfarande och anordning i ett telekommunikationssystem |
US6965960B2 (en) * | 2000-03-01 | 2005-11-15 | Realtek Semiconductor Corporation | xDSL symbol processor and method of operating same |
CA2344014A1 (en) * | 2000-04-12 | 2001-10-12 | Yiyan Wu | Method and system for broadcasting a digital data signal within an analog tv signal using orthogonal frequency division multiplexing |
JP2003534729A (ja) | 2000-05-23 | 2003-11-18 | アウェア, インコーポレイテッド | マルチモード・マルチキャリア・モデムシステムおよびそれを介した通信方法 |
US7197542B2 (en) * | 2000-06-30 | 2007-03-27 | Ponzio Jr Frank J | System and method for signaling quality and integrity of data content |
US6718493B1 (en) * | 2001-05-17 | 2004-04-06 | 3Com Corporation | Method and apparatus for selection of ARQ parameters and estimation of improved communications |
US7209528B2 (en) * | 2001-06-01 | 2007-04-24 | National Semiconductor, Inc. | Over-sampling A/D converter with adjacent channel power detection |
US7027520B2 (en) * | 2001-08-30 | 2006-04-11 | Thomson Licensing | Method and apparatus for simultaneously retrieving portions of a data stream from different channels |
JP2004007267A (ja) * | 2002-05-31 | 2004-01-08 | Panasonic Communications Co Ltd | Dslモデム装置及びdsl通信における通信制御方法 |
GB0229320D0 (en) * | 2002-12-17 | 2003-01-22 | Koninkl Philips Electronics Nv | Signal processing method and apparatus |
WO2004075502A2 (en) * | 2003-02-19 | 2004-09-02 | Matsushita Electric Industrial Co. Ltd. | Receiving apparatus and method for digital multi-carrier transmission |
US7042967B2 (en) | 2003-03-03 | 2006-05-09 | Interdigital Technology Corporation | Reduced complexity sliding window based equalizer |
TW200522623A (en) | 2003-03-03 | 2005-07-01 | Interdigital Tech Corp | Reduced complexity sliding window based equalizer |
US7406157B2 (en) * | 2003-09-03 | 2008-07-29 | Intel Corporation | Methods and apparatuses for determining loop characteristics using an extended voice-band modem |
JP4222185B2 (ja) * | 2003-10-31 | 2009-02-12 | 株式会社日立製作所 | 補正機能付きレーダ装置 |
JP4637498B2 (ja) * | 2004-04-16 | 2011-02-23 | パナソニック株式会社 | 通信装置および通信方法 |
JP2005311413A (ja) * | 2004-04-16 | 2005-11-04 | Matsushita Electric Ind Co Ltd | 通信装置及び通信方法 |
US20050232308A1 (en) * | 2004-04-19 | 2005-10-20 | Texas Instruments Incorporated | Frame alignment and cyclic extension partitioning |
US8144572B2 (en) * | 2004-09-14 | 2012-03-27 | Qualcomm Incorporated | Detection and mitigation of interference and jammers in an OFDM system |
US8233554B2 (en) | 2010-03-29 | 2012-07-31 | Eices Research, Inc. | Increased capacity communications for OFDM-based wireless communications systems/methods/devices |
US7876845B2 (en) * | 2005-06-22 | 2011-01-25 | Eices Research, Inc. | Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility |
US8670493B2 (en) * | 2005-06-22 | 2014-03-11 | Eices Research, Inc. | Systems and/or methods of increased privacy wireless communications |
USRE47633E1 (en) | 2005-06-22 | 2019-10-01 | Odyssey Wireless Inc. | Systems/methods of conducting a financial transaction using a smartphone |
CA2633060A1 (en) * | 2005-12-28 | 2007-07-19 | Elektrobit System Test Oy | Method, apparatus, analyser and computer program of searching for propagation paths |
US20090116592A1 (en) * | 2006-05-25 | 2009-05-07 | Hideo Namba | Receiver and channel estimation method |
US8300685B2 (en) | 2006-08-25 | 2012-10-30 | Broadcom Corporation | Non-linear decision feedback equalizer |
US7560986B2 (en) * | 2006-08-25 | 2009-07-14 | Broadcom Corporation | Variable gain amplifier and method for achieving variable gain amplification with high bandwidth and linearity |
US7525470B2 (en) * | 2006-08-25 | 2009-04-28 | Broadcom Corporation | Phase control for interleaved analog-to-digital conversion for electronic dispersion compensation |
US7961781B2 (en) * | 2006-08-25 | 2011-06-14 | Broadcom Corporation | Electronic dispersion compensation utilizing interleaved architecture and channel identification for assisting timing recovery |
US7830987B2 (en) * | 2006-08-25 | 2010-11-09 | Broadcom Corporation | Electronic dispersion compensation utilizing interleaved architecture and channel identification for assisting timing recovery |
US20080049825A1 (en) * | 2006-08-25 | 2008-02-28 | Broadcom Corporation | Equalizer with reorder |
US20080069198A1 (en) * | 2006-08-25 | 2008-03-20 | Broadcom Corporation | Sequence decision feedback equalizer |
US7525462B2 (en) * | 2006-08-25 | 2009-04-28 | Broadcom Corporation | Gain control for interleaved analog-to-digital conversion for electronic dispersion compensation |
US7907679B2 (en) * | 2007-01-12 | 2011-03-15 | General Dynamics C4 Systems, Inc. | Methods and systems for acquiring signals using coherent match filtering |
US8139680B2 (en) * | 2007-01-12 | 2012-03-20 | General Dynamics C4 Systems, Inc. | Signal acquisition methods and apparatus in wireless communication systems |
US9374746B1 (en) | 2008-07-07 | 2016-06-21 | Odyssey Wireless, Inc. | Systems/methods of spatial multiplexing |
IT1398155B1 (it) * | 2009-06-30 | 2013-02-14 | St Microelectronics Srl | Dispositivo elettronico per ricevere un segnale a radio-frequenza |
US9806790B2 (en) | 2010-03-29 | 2017-10-31 | Odyssey Wireless, Inc. | Systems/methods of spectrally efficient communications |
JP6571133B2 (ja) * | 2017-06-19 | 2019-09-04 | アンリツ株式会社 | 信号発生装置および信号発生方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2082411B (en) * | 1980-08-13 | 1985-07-10 | Hitachi Ltd | Parallel comparator and analogue-to-digital converter |
JPS61501063A (ja) * | 1984-01-11 | 1986-05-22 | テレビツト コ−ポレイシヨン | パケット化アンサンブルモデム |
US5315583A (en) * | 1991-04-11 | 1994-05-24 | Usa Digital Radio | Method and apparatus for digital audio broadcasting and reception |
JP2853455B2 (ja) * | 1992-05-15 | 1999-02-03 | ケイディディ株式会社 | エコーキャンセラ |
SE500986C2 (sv) | 1993-07-20 | 1994-10-17 | Telia Ab | Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM |
-
1997
- 1997-09-01 JP JP51255798A patent/JP4130995B2/ja not_active Expired - Lifetime
- 1997-09-01 AT AT97937937T patent/ATE227913T1/de not_active IP Right Cessation
- 1997-09-01 US US09/147,756 patent/US6466629B1/en not_active Expired - Lifetime
- 1997-09-01 EP EP97937937A patent/EP0923823B1/en not_active Expired - Lifetime
- 1997-09-01 DE DE69717128T patent/DE69717128T2/de not_active Expired - Fee Related
- 1997-09-01 WO PCT/SE1997/001455 patent/WO1998010550A2/en active IP Right Grant
-
1999
- 1999-02-19 NO NO990772A patent/NO990772L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
ATE227913T1 (de) | 2002-11-15 |
DE69717128T2 (de) | 2003-07-10 |
NO990772D0 (no) | 1999-02-19 |
JP2000517509A (ja) | 2000-12-26 |
EP0923823A2 (en) | 1999-06-23 |
JP4130995B2 (ja) | 2008-08-13 |
EP0923823B1 (en) | 2002-11-13 |
US6466629B1 (en) | 2002-10-15 |
WO1998010550A2 (en) | 1998-03-12 |
WO1998010550A3 (en) | 1998-06-18 |
DE69717128D1 (de) | 2002-12-19 |
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Legal Events
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FC2A | Withdrawal, rejection or dismissal of laid open patent application |