DE60032684D1 - Mehrträgermodulation - Google Patents
MehrträgermodulationInfo
- Publication number
- DE60032684D1 DE60032684D1 DE60032684T DE60032684T DE60032684D1 DE 60032684 D1 DE60032684 D1 DE 60032684D1 DE 60032684 T DE60032684 T DE 60032684T DE 60032684 T DE60032684 T DE 60032684T DE 60032684 D1 DE60032684 D1 DE 60032684D1
- Authority
- DE
- Germany
- Prior art keywords
- multicarrier modulation
- multicarrier
- modulation
- 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
- 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
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
-
- 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
- H04L27/2649—Demodulators
- H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23809899A JP4310860B2 (ja) | 1999-08-25 | 1999-08-25 | 直交周波数分割多重変調方法及び直交周波数分割多重変調装置 |
JP23809999 | 1999-08-25 | ||
JP23809999A JP4284770B2 (ja) | 1999-08-25 | 1999-08-25 | 直交周波数分割多重復調方法及び直交周波数分割多重復調装置 |
JP23809899 | 1999-08-25 | ||
JP2000051192 | 2000-02-28 | ||
JP2000051192A JP2001244909A (ja) | 2000-02-28 | 2000-02-28 | ディジタル直交変復調装置、ディジタル直交変復調方法、ディジタル直交周波数分割多重変復調装置及びディジタル直交周波数分割多重変復調方法 |
JP2000051193 | 2000-02-28 | ||
JP2000051193A JP2001245013A (ja) | 2000-02-28 | 2000-02-28 | ディジタル直交変調方式 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60032684D1 true DE60032684D1 (de) | 2007-02-15 |
DE60032684T2 DE60032684T2 (de) | 2007-10-04 |
Family
ID=27477717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60032684T Expired - Lifetime DE60032684T2 (de) | 1999-08-25 | 2000-08-14 | Mehrträgermodulation |
Country Status (3)
Country | Link |
---|---|
US (1) | US6763072B1 (de) |
EP (1) | EP1079577B1 (de) |
DE (1) | DE60032684T2 (de) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020131528A1 (en) * | 2001-01-10 | 2002-09-19 | Hughes Electronics | System and method of parallel partitioning a satellite communications modem |
EP1237342A3 (de) * | 2001-03-01 | 2006-05-03 | Alps Electric Co., Ltd. | Mehrträgermodulator |
DE10161602A1 (de) * | 2001-12-14 | 2003-06-18 | Rohde & Schwarz | Verfahren und Anordnung zum graphischen Darstellen der l- und/oder Q-Komponenten von digital modulierten Hochfrequenzsignalen |
AU2003265557A1 (en) * | 2002-08-19 | 2004-03-03 | The Regents Of The University Of California | Fpga implementation of a digital qam modulator |
US6940828B2 (en) * | 2002-09-30 | 2005-09-06 | Nokia Corporation | Apparatus, and associated method, for transforming data in an OFDM communication system |
WO2005107088A1 (en) * | 2004-04-29 | 2005-11-10 | Koninklijke Philips Electronics N.V. | Receiver for narrowband interference cancellation |
GB2421405B (en) * | 2004-12-17 | 2007-12-12 | Chung Shan Inst Of Science And Tech | Time domain spreading method and apparatus |
US7327776B2 (en) | 2004-12-20 | 2008-02-05 | Chung Shan Institute Of Science And Technology, Armaments Bureau, M.N.D. | Time domain spreading method and apparatus for a UWB receiver comprising fast fourier transform and exchange of real and imaginary complex signal components |
US7609795B2 (en) * | 2005-10-04 | 2009-10-27 | Via Technologies, Inc. | Interpolation module, interpolator and methods capable of recovering timing in a timing recovery apparatus |
US7194379B1 (en) | 2006-03-10 | 2007-03-20 | L3 Communications Integrated Systems L.P. | High resolution TOA circuit |
US7933344B2 (en) * | 2006-04-25 | 2011-04-26 | Mircosoft Corporation | OFDMA based on cognitive radio |
US7634016B2 (en) * | 2006-04-25 | 2009-12-15 | Microsoft Corporation | Variable OFDM subchannel coding and modulation |
US8189621B2 (en) | 2006-05-12 | 2012-05-29 | Microsoft Corporation | Stack signaling to application with lack of requested bandwidth |
US8144793B2 (en) | 2006-12-12 | 2012-03-27 | Microsoft Corporation | Cognitive multi-user OFDMA |
JP4933311B2 (ja) * | 2007-03-07 | 2012-05-16 | キヤノン株式会社 | 外部機器から入力されたストリーミングデータをofdm変調して送信する送信装置およびその制御方法 |
US7929623B2 (en) * | 2007-03-30 | 2011-04-19 | Microsoft Corporation | FEC in cognitive multi-user OFDMA |
US7970085B2 (en) | 2007-05-08 | 2011-06-28 | Microsoft Corporation | OFDM transmission and reception for non-OFDMA signals |
US8374130B2 (en) | 2008-01-25 | 2013-02-12 | Microsoft Corporation | Orthogonal frequency division multiple access with carrier sense |
US8855087B2 (en) * | 2008-12-18 | 2014-10-07 | Microsoft Corporation | Wireless access point supporting control by multiple applications |
CN102130697B (zh) * | 2010-01-20 | 2015-05-27 | 华为技术有限公司 | 接收机、发射机及反馈装置、收发信机和信号处理方法 |
KR101347004B1 (ko) * | 2010-09-17 | 2014-01-15 | 한국전자통신연구원 | 광 코히어런트 수신기 및 그의 광신호 처리 방법 |
TWI559202B (zh) * | 2014-10-01 | 2016-11-21 | 義隆電子股份有限公司 | 電容式觸控裝置及其刺激訊號產生電路與方法 |
US10680863B2 (en) * | 2015-03-31 | 2020-06-09 | Sony Corporation | Modulation apparatus |
US9998315B2 (en) * | 2016-03-08 | 2018-06-12 | Blackberry Limited | Method and apparatus for I-Q decoupled OFDM modulation and demodulation |
US9998138B1 (en) * | 2017-09-21 | 2018-06-12 | Qualcomm Incorporated | Time-multiplexed successive approximation register (SAR) analog-to-digital converter (ADC) circuits for multi-channel receivers |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3400003B2 (ja) | 1993-02-18 | 2003-04-28 | 株式会社日立製作所 | 複素変復調方式 |
JP3391012B2 (ja) | 1994-08-05 | 2003-03-31 | 日本電信電話株式会社 | ディジタル処理直交変調方法及び直交変調器 |
JP3391015B2 (ja) | 1994-07-20 | 2003-03-31 | 日本電信電話株式会社 | ディジタル処理直交変調器 |
JPH08149167A (ja) | 1994-11-16 | 1996-06-07 | Matsushita Electric Ind Co Ltd | ディジタル直交変調器 |
EP0760567A3 (de) | 1995-08-30 | 2000-09-06 | Siemens Aktiengesellschaft | Digitaler QAM-modulator |
US5841813A (en) * | 1996-09-04 | 1998-11-24 | Lucent Technologies Inc. | Digital communications system using complementary codes and amplitude modulation |
EP0909067A4 (de) | 1997-02-27 | 2005-06-22 | Matsushita Electric Ind Co Ltd | Modulator und modulationsverfahren |
JPH1117643A (ja) * | 1997-06-19 | 1999-01-22 | Hitachi Denshi Ltd | Ofdm変調器 |
JP3842396B2 (ja) | 1997-08-07 | 2006-11-08 | 株式会社ケンウッド | デジタル変調装置 |
JP3143898B2 (ja) | 1997-12-04 | 2001-03-07 | 日本電気株式会社 | 直交変調波受信装置 |
KR100442816B1 (ko) * | 1998-07-08 | 2004-09-18 | 삼성전자주식회사 | 직교주파수분할다중화(ofdm)수신기 동기화 방법 및 장치 |
US6535066B1 (en) * | 2001-06-21 | 2003-03-18 | Cisco Technology, Inc. | Dynamic RF amplifier bias control for digital wireless communications devices |
-
2000
- 2000-08-08 US US09/634,856 patent/US6763072B1/en not_active Expired - Lifetime
- 2000-08-14 EP EP00117543A patent/EP1079577B1/de not_active Expired - Lifetime
- 2000-08-14 DE DE60032684T patent/DE60032684T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1079577B1 (de) | 2007-01-03 |
DE60032684T2 (de) | 2007-10-04 |
EP1079577A3 (de) | 2003-12-17 |
US6763072B1 (en) | 2004-07-13 |
EP1079577A2 (de) | 2001-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |