WO2002103896A1 - Signal correction techniques - Google Patents
Signal correction techniques Download PDFInfo
- Publication number
- WO2002103896A1 WO2002103896A1 PCT/GB2002/002670 GB0202670W WO02103896A1 WO 2002103896 A1 WO2002103896 A1 WO 2002103896A1 GB 0202670 W GB0202670 W GB 0202670W WO 02103896 A1 WO02103896 A1 WO 02103896A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- error
- distortion
- input signal
- equipment
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/480,895 US7042286B2 (en) | 2001-06-15 | 2002-06-11 | Signal correction techniques |
EP02730491A EP1405404A1 (en) | 2001-06-15 | 2002-06-11 | Signal correction techniques |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0114804.8 | 2001-06-15 | ||
GB0114804A GB2376584B (en) | 2001-06-15 | 2001-06-15 | Signal correction techniques |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002103896A1 true WO2002103896A1 (en) | 2002-12-27 |
Family
ID=9916805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/002670 WO2002103896A1 (en) | 2001-06-15 | 2002-06-11 | Signal correction techniques |
Country Status (4)
Country | Link |
---|---|
US (1) | US7042286B2 (en) |
EP (1) | EP1405404A1 (en) |
GB (1) | GB2376584B (en) |
WO (1) | WO2002103896A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006031156A1 (en) | 2004-09-15 | 2006-03-23 | Telefonaktiebolaget L M Ericsson | An arrangement and a method relating to signal predistortion |
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US20040057533A1 (en) * | 2002-09-23 | 2004-03-25 | Kermalli Munawar Hussein | System and method for performing predistortion at intermediate frequency |
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US7295819B2 (en) | 2003-03-11 | 2007-11-13 | Andrew Corporation | Signal sample acquisition techniques |
US6919764B2 (en) | 2003-03-11 | 2005-07-19 | Andrew Corporation | Amplifier control system with statistical enhancement of resolution of digital control signals |
US7123890B2 (en) | 2003-03-11 | 2006-10-17 | Andrew Corporation | Signal sample acquisition techniques |
US7259630B2 (en) | 2003-07-23 | 2007-08-21 | Andrew Corporation | Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter |
US7251464B2 (en) * | 2003-10-16 | 2007-07-31 | Motorola, Inc. | Method and apparatus for predistortion training in an amplifier utilizing predistortion |
US7327803B2 (en) | 2004-10-22 | 2008-02-05 | Parkervision, Inc. | Systems and methods for vector power amplification |
US7355470B2 (en) | 2006-04-24 | 2008-04-08 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
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US8013675B2 (en) | 2007-06-19 | 2011-09-06 | Parkervision, Inc. | Combiner-less multiple input single output (MISO) amplification with blended control |
US7911272B2 (en) | 2007-06-19 | 2011-03-22 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments |
US9106316B2 (en) | 2005-10-24 | 2015-08-11 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification |
US7937106B2 (en) | 2006-04-24 | 2011-05-03 | ParkerVision, Inc, | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same |
US8031804B2 (en) | 2006-04-24 | 2011-10-04 | Parkervision, Inc. | Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion |
US7873331B2 (en) * | 2006-06-04 | 2011-01-18 | Samsung Electro-Mechanics Company, Ltd. | Systems, methods, and apparatuses for multi-path orthogonal recursive predistortion |
US7518445B2 (en) * | 2006-06-04 | 2009-04-14 | Samsung Electro-Mechanics Company, Ltd. | Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters |
US7860466B2 (en) * | 2006-06-04 | 2010-12-28 | Samsung Electro-Mechanics Company, Ltd. | Systems, methods, and apparatuses for linear polar transmitters |
US8411709B1 (en) | 2006-11-27 | 2013-04-02 | Marvell International Ltd. | Use of previously buffered state information to decode in an hybrid automatic repeat request (H-ARQ) transmission mode |
WO2008144017A1 (en) | 2007-05-18 | 2008-11-27 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
WO2009005768A1 (en) | 2007-06-28 | 2009-01-08 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
US8897393B1 (en) | 2007-10-16 | 2014-11-25 | Marvell International Ltd. | Protected codebook selection at receiver for transmit beamforming |
US8542725B1 (en) | 2007-11-14 | 2013-09-24 | Marvell International Ltd. | Decision feedback equalization for signals having unequally distributed patterns |
US8260143B2 (en) * | 2008-03-12 | 2012-09-04 | Hypres, Inc. | Digital radio frequency tranceiver system and method |
US8565325B1 (en) | 2008-03-18 | 2013-10-22 | Marvell International Ltd. | Wireless device communication in the 60GHz band |
US8498342B1 (en) | 2008-07-29 | 2013-07-30 | Marvell International Ltd. | Deblocking filtering |
US8761261B1 (en) | 2008-07-29 | 2014-06-24 | Marvell International Ltd. | Encoding using motion vectors |
US8345533B1 (en) | 2008-08-18 | 2013-01-01 | Marvell International Ltd. | Frame synchronization techniques |
US8483631B2 (en) * | 2008-09-10 | 2013-07-09 | Qualcomm Incorporated | Method and apparatus for predistorting a waveform for input to an amplifier |
US8681893B1 (en) | 2008-10-08 | 2014-03-25 | Marvell International Ltd. | Generating pulses using a look-up table |
US8249531B2 (en) * | 2008-10-31 | 2012-08-21 | Apple, Inc. | Transmit power measurement and control methods and apparatus |
WO2010056736A2 (en) * | 2008-11-11 | 2010-05-20 | Axis Network Technology Ltd. | Resource efficient adaptive digital pre-distortion system |
US8520771B1 (en) * | 2009-04-29 | 2013-08-27 | Marvell International Ltd. | WCDMA modulation |
JP5355508B2 (en) * | 2009-08-27 | 2013-11-27 | 株式会社エヌ・ティ・ティ・ドコモ | Power series digital predistorter and its distortion compensation control method |
US8400726B1 (en) * | 2010-01-28 | 2013-03-19 | Link—A—Media Devices Corporation | Controlling preamble target amplitude |
US8817771B1 (en) | 2010-07-16 | 2014-08-26 | Marvell International Ltd. | Method and apparatus for detecting a boundary of a data frame in a communication network |
KR20140026458A (en) | 2011-04-08 | 2014-03-05 | 파커비전, 인크. | Systems and methods of rf power transmission, modulation, and amplification |
US8792583B2 (en) * | 2011-05-12 | 2014-07-29 | Andrew Llc | Linearization in the presence of phase variations |
EP2715867A4 (en) | 2011-06-02 | 2014-12-17 | Parkervision Inc | Antenna control |
KR20160058855A (en) | 2013-09-17 | 2016-05-25 | 파커비전, 인크. | Method, apparatus and system for rendering an information bearing function of time |
US9813190B1 (en) * | 2016-07-01 | 2017-11-07 | Intel IP Corporation | Pre-distortion calibration |
US10732714B2 (en) | 2017-05-08 | 2020-08-04 | Cirrus Logic, Inc. | Integrated haptic system |
US10832537B2 (en) | 2018-04-04 | 2020-11-10 | Cirrus Logic, Inc. | Methods and apparatus for outputting a haptic signal to a haptic transducer |
US11269415B2 (en) | 2018-08-14 | 2022-03-08 | Cirrus Logic, Inc. | Haptic output systems |
GB201817495D0 (en) | 2018-10-26 | 2018-12-12 | Cirrus Logic Int Semiconductor Ltd | A force sensing system and method |
US10955955B2 (en) | 2019-03-29 | 2021-03-23 | Cirrus Logic, Inc. | Controller for use in a device comprising force sensors |
US10828672B2 (en) | 2019-03-29 | 2020-11-10 | Cirrus Logic, Inc. | Driver circuitry |
US11644370B2 (en) | 2019-03-29 | 2023-05-09 | Cirrus Logic, Inc. | Force sensing with an electromagnetic load |
US11509292B2 (en) | 2019-03-29 | 2022-11-22 | Cirrus Logic, Inc. | Identifying mechanical impedance of an electromagnetic load using least-mean-squares filter |
US10976825B2 (en) | 2019-06-07 | 2021-04-13 | Cirrus Logic, Inc. | Methods and apparatuses for controlling operation of a vibrational output system and/or operation of an input sensor system |
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US11408787B2 (en) | 2019-10-15 | 2022-08-09 | Cirrus Logic, Inc. | Control methods for a force sensor system |
US11380175B2 (en) | 2019-10-24 | 2022-07-05 | Cirrus Logic, Inc. | Reproducibility of haptic waveform |
US11545951B2 (en) * | 2019-12-06 | 2023-01-03 | Cirrus Logic, Inc. | Methods and systems for detecting and managing amplifier instability |
US11662821B2 (en) | 2020-04-16 | 2023-05-30 | Cirrus Logic, Inc. | In-situ monitoring, calibration, and testing of a haptic actuator |
US11777543B2 (en) * | 2020-05-12 | 2023-10-03 | Nec Corporation | Distortion compensation apparatus and distortion compensation method |
US11933822B2 (en) | 2021-06-16 | 2024-03-19 | Cirrus Logic Inc. | Methods and systems for in-system estimation of actuator parameters |
US11908310B2 (en) | 2021-06-22 | 2024-02-20 | Cirrus Logic Inc. | Methods and systems for detecting and managing unexpected spectral content in an amplifier system |
US11765499B2 (en) | 2021-06-22 | 2023-09-19 | Cirrus Logic Inc. | Methods and systems for managing mixed mode electromechanical actuator drive |
US11552649B1 (en) | 2021-12-03 | 2023-01-10 | Cirrus Logic, Inc. | Analog-to-digital converter-embedded fixed-phase variable gain amplifier stages for dual monitoring paths |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5396190A (en) * | 1993-04-20 | 1995-03-07 | Mitsubishi Denki Kabushiki Kaisha | Circuit for compensating for nonlinear distortion in transmit power amplifier |
US5870668A (en) * | 1995-08-18 | 1999-02-09 | Fujitsu Limited | Amplifier having distortion compensation and base station for radio communication using the same |
US5949283A (en) * | 1996-09-20 | 1999-09-07 | Spectrian | Adaptive digital predistortion linearization and feed-forward correction of RF power amplifier |
US6133789A (en) * | 1997-12-10 | 2000-10-17 | Nortel Networks Corporation | Method and system for robustly linearizing a radio frequency power amplifier using vector feedback |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2967699B2 (en) * | 1995-03-06 | 1999-10-25 | 日本電気株式会社 | Transmission device |
US6285412B1 (en) * | 1997-07-23 | 2001-09-04 | Harris Corporation | Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system |
US6275685B1 (en) * | 1998-12-10 | 2001-08-14 | Nortel Networks Limited | Linear amplifier arrangement |
JP4183364B2 (en) * | 1999-12-28 | 2008-11-19 | 富士通株式会社 | Distortion compensation device |
-
2001
- 2001-06-15 GB GB0114804A patent/GB2376584B/en not_active Expired - Fee Related
-
2002
- 2002-06-11 EP EP02730491A patent/EP1405404A1/en not_active Withdrawn
- 2002-06-11 US US10/480,895 patent/US7042286B2/en not_active Expired - Fee Related
- 2002-06-11 WO PCT/GB2002/002670 patent/WO2002103896A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5396190A (en) * | 1993-04-20 | 1995-03-07 | Mitsubishi Denki Kabushiki Kaisha | Circuit for compensating for nonlinear distortion in transmit power amplifier |
US5870668A (en) * | 1995-08-18 | 1999-02-09 | Fujitsu Limited | Amplifier having distortion compensation and base station for radio communication using the same |
US5949283A (en) * | 1996-09-20 | 1999-09-07 | Spectrian | Adaptive digital predistortion linearization and feed-forward correction of RF power amplifier |
US6133789A (en) * | 1997-12-10 | 2000-10-17 | Nortel Networks Corporation | Method and system for robustly linearizing a radio frequency power amplifier using vector feedback |
Non-Patent Citations (3)
Title |
---|
BANELLI P: "Error sensitivity in adaptive predistortion systems", IEEE GLOBAL TELECOMMUNICATIONS CONF, 1999, XP010373672 * |
D'ANDREA A N ET AL: "A digital approach to efficient RF power amplifier linearization", GLOBAL TELECOMMUNICATIONS CONFERENCE, 1997. GLOBECOM '97., IEEE PHOENIX, AZ, USA 3-8 NOV. 1997, NEW YORK, NY, USA,IEEE, US, PAGE(S) 77-81, ISBN: 0-7803-4198-8, XP010254627 * |
FAULKNER M ET AL: "ADAPTIVE LINEARISATION USING PRE-DISTORTION", VEHICULAR TECHNOLOGY CONFERENCE. ORLANDO, MAY 6 - 9, 1990, NEW YORK, IEEE, US, VOL. CONF. 40, PAGE(S) 35-40, XP000203781 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006031156A1 (en) | 2004-09-15 | 2006-03-23 | Telefonaktiebolaget L M Ericsson | An arrangement and a method relating to signal predistortion |
Also Published As
Publication number | Publication date |
---|---|
GB2376584A (en) | 2002-12-18 |
US7042286B2 (en) | 2006-05-09 |
US20040232984A1 (en) | 2004-11-25 |
GB0114804D0 (en) | 2001-08-08 |
EP1405404A1 (en) | 2004-04-07 |
GB2376584B (en) | 2005-02-16 |
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