JP2002118429A - 低減された歪みを有する増幅された信号を生成する方法および歪み低減システム - Google Patents
低減された歪みを有する増幅された信号を生成する方法および歪み低減システムInfo
- Publication number
- JP2002118429A JP2002118429A JP2001253935A JP2001253935A JP2002118429A JP 2002118429 A JP2002118429 A JP 2002118429A JP 2001253935 A JP2001253935 A JP 2001253935A JP 2001253935 A JP2001253935 A JP 2001253935A JP 2002118429 A JP2002118429 A JP 2002118429A
- Authority
- JP
- Japan
- Prior art keywords
- distortion
- signal
- frequency
- path
- amplitude
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 4
- 238000001514 detection method Methods 0.000 claims description 48
- 230000004044 response Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 3
- 230000003321 amplification Effects 0.000 abstract description 5
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 23
- 238000004891 communication Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 6
- 230000003111 delayed effect Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000010267 cellular communication Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 101000864342 Homo sapiens Tyrosine-protein kinase BTK Proteins 0.000 description 2
- 102100029823 Tyrosine-protein kinase BTK Human genes 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 101000621427 Homo sapiens Wiskott-Aldrich syndrome protein Proteins 0.000 description 1
- 101100460203 Schizosaccharomyces pombe (strain 972 / ATCC 24843) new2 gene Proteins 0.000 description 1
- 102100023034 Wiskott-Aldrich syndrome protein Human genes 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
- H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/645,120 US6545487B1 (en) | 2000-08-24 | 2000-08-24 | System and method for producing an amplified signal with reduced distortion |
| US09/645120 | 2000-08-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002118429A true JP2002118429A (ja) | 2002-04-19 |
| JP2002118429A5 JP2002118429A5 (enExample) | 2004-10-14 |
Family
ID=24587715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001253935A Abandoned JP2002118429A (ja) | 2000-08-24 | 2001-08-24 | 低減された歪みを有する増幅された信号を生成する方法および歪み低減システム |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6545487B1 (enExample) |
| EP (1) | EP1189340A1 (enExample) |
| JP (1) | JP2002118429A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007318299A (ja) * | 2006-05-24 | 2007-12-06 | Stack Denshi Kk | 歪補償回路 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7657241B2 (en) * | 2002-02-01 | 2010-02-02 | Qualcomm, Incorporated | Distortion reduction calibration |
| US6919727B2 (en) * | 2002-09-26 | 2005-07-19 | Texas Instruments Incorporated | Accurate time measurement system circuit and method |
| US20040198269A1 (en) * | 2002-12-30 | 2004-10-07 | Richard Phillips | Linearization of amplified feedback distortion |
| CN1781266A (zh) * | 2003-04-21 | 2006-05-31 | 三洋电机株式会社 | 接收装置 |
| US7091781B2 (en) * | 2004-10-29 | 2006-08-15 | Motorola, Inc. | Wideband feed forward linear power amplifier |
| US20070202603A1 (en) * | 2006-02-27 | 2007-08-30 | Steven Wayne Counts | Apparatus and method for sampling and correcting fluids |
| US8532235B2 (en) * | 2008-12-17 | 2013-09-10 | Lawrence Livermore National Security, Llc. | UWB delay and multiply receiver |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334698B1 (enExample) * | 1971-06-09 | 1978-09-21 | ||
| US5334946A (en) * | 1990-04-25 | 1994-08-02 | British Technology Group Limited | Apparatus and method for reducing distortion in amplification |
| CA2046413C (en) * | 1990-07-11 | 1994-01-04 | Shoichi Narahashi | Feed-forward amplifier |
| US5489875A (en) * | 1994-09-21 | 1996-02-06 | Simon Fraser University | Adaptive feedforward linearizer for RF power amplifiers |
| KR100217416B1 (ko) | 1995-11-16 | 1999-09-01 | 윤종용 | 선형 증폭 장치 및 방법 |
| JP3753494B2 (ja) * | 1997-02-20 | 2006-03-08 | 富士通株式会社 | フィードフォワード増幅器 |
| US5847603A (en) * | 1997-07-31 | 1998-12-08 | Lucent Technologies Inc. | Automatic control system for reducing distortion produced by electrical circuits |
| US6140874A (en) * | 1998-10-19 | 2000-10-31 | Powerwave Technologies, Inc. | Amplification system having mask detection and bias compensation |
| US6104241A (en) * | 1998-11-18 | 2000-08-15 | Spectrian | High efficiency feed-forward RF power amplifier with predistoration enchancement |
-
2000
- 2000-08-24 US US09/645,120 patent/US6545487B1/en not_active Expired - Lifetime
-
2001
- 2001-03-05 EP EP01301960A patent/EP1189340A1/en not_active Withdrawn
- 2001-08-24 JP JP2001253935A patent/JP2002118429A/ja not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007318299A (ja) * | 2006-05-24 | 2007-12-06 | Stack Denshi Kk | 歪補償回路 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1189340A1 (en) | 2002-03-20 |
| US6545487B1 (en) | 2003-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060912 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060919 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20061219 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20061222 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070507 |
|
| A762 | Written abandonment of application |
Free format text: JAPANESE INTERMEDIATE CODE: A762 Effective date: 20070803 |