CN1316150A - 利用减小的数字控制振荡器查找表的系统和方法 - Google Patents
利用减小的数字控制振荡器查找表的系统和方法 Download PDFInfo
- Publication number
- CN1316150A CN1316150A CN99809291A CN99809291A CN1316150A CN 1316150 A CN1316150 A CN 1316150A CN 99809291 A CN99809291 A CN 99809291A CN 99809291 A CN99809291 A CN 99809291A CN 1316150 A CN1316150 A CN 1316150A
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- CN
- China
- Prior art keywords
- frequency
- group
- numerically
- controlled oscillator
- class
- 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.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
- H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
- H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
-
- 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
-
- 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2681—Details of algorithms characterised by constraints
- H04L27/2684—Complexity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Complex Calculations (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Numerical Control (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (28)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/128,062 US6167102A (en) | 1998-08-03 | 1998-08-03 | System and method employing a reduced NCO lookup table |
US09/128062 | 1998-08-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1316150A true CN1316150A (zh) | 2001-10-03 |
CN1126339C CN1126339C (zh) | 2003-10-29 |
Family
ID=22433421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN99809291A Expired - Fee Related CN1126339C (zh) | 1998-08-03 | 1999-07-27 | 利用减小的数字控制振荡器查找表的系统和方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6167102A (zh) |
EP (1) | EP1103125B1 (zh) |
JP (1) | JP2002522952A (zh) |
KR (1) | KR100685657B1 (zh) |
CN (1) | CN1126339C (zh) |
AU (1) | AU758067B2 (zh) |
CA (1) | CA2338556C (zh) |
WO (1) | WO2000008792A2 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105573407A (zh) * | 2015-12-18 | 2016-05-11 | 电子科技大学 | 一种基于余数系统的数字频率合成器及rom压缩方法 |
CN112699525A (zh) * | 2020-12-02 | 2021-04-23 | 北京邮电大学 | 一种瑞利信道仿真器的计算方法、设备 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3399400B2 (ja) * | 1999-04-15 | 2003-04-21 | 日本電気株式会社 | 周波数偏移復調回路 |
US6330578B1 (en) * | 1999-06-11 | 2001-12-11 | Nortel Networks Limited | Method and apparatus for digitally representing a waveform |
FR2817100B1 (fr) * | 2000-11-17 | 2003-08-22 | Cit Alcatel | Procede pour optimiser les performances d'un emetteur pour systeme de radiocommunications mobiles |
US6988211B2 (en) * | 2000-12-29 | 2006-01-17 | Intel Corporation | System and method for selecting a frequency and voltage combination from a table using a selection field and a read-only limit field |
US7290021B2 (en) * | 2001-04-24 | 2007-10-30 | California Institute Of Technology | Method and apparatus for parallel signal processing |
US6518802B1 (en) * | 2001-06-27 | 2003-02-11 | Webtv Networks, Inc. | Circuits and methods for generating an accurate digital representation of a sinusoidal wave |
US7277906B2 (en) * | 2004-01-05 | 2007-10-02 | Realtek Semiconductor Corp. | Method for determining an output value having a lowest error value from an input value |
US7450948B2 (en) * | 2004-01-15 | 2008-11-11 | Cingular Wireless Ii, Llc | Method and apparatus for use in provisioning resources for a backhaul link |
US7983145B2 (en) | 2006-11-02 | 2011-07-19 | Telefonaktiebolaget Lm Ericsson (Publ) | DFT spread OFTM |
JP4652443B2 (ja) * | 2008-12-26 | 2011-03-16 | 富士通株式会社 | 離散フーリエ変換演算処理装置及び無線通信装置 |
CN101930425B (zh) | 2009-06-24 | 2015-09-30 | 华为技术有限公司 | 信号处理方法、数据处理方法及装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5053983A (en) * | 1971-04-19 | 1991-10-01 | Hyatt Gilbert P | Filter system having an adaptive control for updating filter samples |
JPH0437205A (ja) * | 1990-05-31 | 1992-02-07 | Sony Corp | 発振装置 |
US5270953A (en) * | 1991-05-23 | 1993-12-14 | Rockwell International Corporation | Fast convolution multiplier |
US5430764A (en) * | 1993-09-01 | 1995-07-04 | Grand Valley State University | Direct digital frequency synthesizer |
US5619535A (en) * | 1994-07-27 | 1997-04-08 | Alvarez, Jr.; Cesar E. | Digital frequency synthesizer |
US5673212A (en) * | 1995-09-01 | 1997-09-30 | Motorola, Inc. | Method and apparatus for numerically controlled oscillator with partitioned phase accumulator |
US5703514A (en) * | 1995-12-21 | 1997-12-30 | Hughes Electronics | Digital frequency divider phase shifter |
US5781459A (en) * | 1996-04-16 | 1998-07-14 | Bienz; Richard Alan | Method and system for rational frequency synthesis using a numerically controlled oscillator |
-
1998
- 1998-08-03 US US09/128,062 patent/US6167102A/en not_active Expired - Lifetime
-
1999
- 1999-07-27 EP EP99943542.3A patent/EP1103125B1/en not_active Expired - Lifetime
- 1999-07-27 AU AU56614/99A patent/AU758067B2/en not_active Ceased
- 1999-07-27 WO PCT/SE1999/001319 patent/WO2000008792A2/en active IP Right Grant
- 1999-07-27 KR KR1020017001401A patent/KR100685657B1/ko not_active IP Right Cessation
- 1999-07-27 JP JP2000564325A patent/JP2002522952A/ja active Pending
- 1999-07-27 CN CN99809291A patent/CN1126339C/zh not_active Expired - Fee Related
- 1999-07-27 CA CA002338556A patent/CA2338556C/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105573407A (zh) * | 2015-12-18 | 2016-05-11 | 电子科技大学 | 一种基于余数系统的数字频率合成器及rom压缩方法 |
CN105573407B (zh) * | 2015-12-18 | 2018-08-28 | 电子科技大学 | 一种基于余数系统的数字频率合成器及rom压缩方法 |
CN112699525A (zh) * | 2020-12-02 | 2021-04-23 | 北京邮电大学 | 一种瑞利信道仿真器的计算方法、设备 |
CN112699525B (zh) * | 2020-12-02 | 2023-10-03 | 北京邮电大学 | 一种瑞利信道仿真器的计算方法、设备 |
Also Published As
Publication number | Publication date |
---|---|
JP2002522952A (ja) | 2002-07-23 |
CA2338556C (en) | 2007-01-09 |
KR100685657B1 (ko) | 2007-02-23 |
EP1103125A2 (en) | 2001-05-30 |
KR20010072182A (ko) | 2001-07-31 |
AU5661499A (en) | 2000-02-28 |
WO2000008792A2 (en) | 2000-02-17 |
AU758067B2 (en) | 2003-03-13 |
US6167102A (en) | 2000-12-26 |
WO2000008792A3 (en) | 2000-03-23 |
CA2338556A1 (en) | 2000-02-17 |
EP1103125B1 (en) | 2015-09-02 |
CN1126339C (zh) | 2003-10-29 |
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Owner name: UNWIRED PLANET INC. Free format text: FORMER OWNER: CLUSTER CO., LTD. Effective date: 20130708 Owner name: CLUSTER CO., LTD. Free format text: FORMER OWNER: TELEFONAKTIEBOLAGET LM ERICSSON (SE) S-126 25 STOCKHOLM, SWEDEN Effective date: 20130708 |
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Effective date of registration: 20130708 Address after: Nevada Patentee after: Wireless Planet LLC Address before: Delaware Patentee before: Clastres LLC Effective date of registration: 20130708 Address after: Delaware Patentee after: Clastres LLC Address before: Stockholm Patentee before: Telefonaktiebolaget LM Ericsson |
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