JPH11501186A - チャネル確認 - Google Patents
チャネル確認Info
- Publication number
- JPH11501186A JPH11501186A JP9522613A JP52261397A JPH11501186A JP H11501186 A JPH11501186 A JP H11501186A JP 9522613 A JP9522613 A JP 9522613A JP 52261397 A JP52261397 A JP 52261397A JP H11501186 A JPH11501186 A JP H11501186A
- Authority
- JP
- Japan
- Prior art keywords
- channel
- signal
- impulse response
- communication channel
- test signal
- 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
- 108091006146 Channels Proteins 0.000 claims abstract description 225
- 230000004044 response Effects 0.000 claims abstract description 125
- 238000012360 testing method Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 44
- 238000012790 confirmation Methods 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims description 58
- 239000011159 matrix material Substances 0.000 claims description 26
- 238000011156 evaluation Methods 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002592 echocardiography Methods 0.000 description 6
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 239000013598 vector Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- LFVLUOAHQIVABZ-UHFFFAOYSA-N Iodofenphos Chemical compound COP(=S)(OC)OC1=CC(Cl)=C(I)C=C1Cl LFVLUOAHQIVABZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/024—Channel estimation channel estimation algorithms
- H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0212—Channel estimation of impulse response
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
- H04N5/211—Ghost signal cancellation
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Picture Signal Circuits (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/573,857 US5761088A (en) | 1995-12-18 | 1995-12-18 | Method and apparatus for channel identification using incomplete or noisy information |
| US08/573,857 | 1995-12-18 | ||
| PCT/IB1996/001295 WO1997023089A1 (en) | 1995-12-18 | 1996-11-25 | Channel identification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11501186A true JPH11501186A (ja) | 1999-01-26 |
| JPH11501186A5 JPH11501186A5 (enExample) | 2004-10-21 |
Family
ID=24293680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9522613A Abandoned JPH11501186A (ja) | 1995-12-18 | 1996-11-25 | チャネル確認 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5761088A (enExample) |
| EP (1) | EP0809910B1 (enExample) |
| JP (1) | JPH11501186A (enExample) |
| KR (1) | KR19980702348A (enExample) |
| DE (1) | DE69615005T2 (enExample) |
| WO (1) | WO1997023089A1 (enExample) |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5179444A (en) * | 1990-10-09 | 1993-01-12 | North American Philips Corporation | System for echo cancellation comprising an improved ghost cancellation reference signal |
| FR2762167B1 (fr) * | 1997-04-14 | 1999-09-24 | Nortel Matra Cellular | Sondage a ponderation spatiale d'une voie de transmission |
| US5914982A (en) * | 1997-06-13 | 1999-06-22 | Rockwell Semiconductor Systems, Inc. | Method and apparatus for training linear equalizers in a PCM modem |
| WO2000005847A1 (en) | 1998-07-21 | 2000-02-03 | Nokia Networks Oy | Channel impulse response estimation using received signal variance |
| US6304299B1 (en) * | 1998-11-30 | 2001-10-16 | General Electric Company | System and method for mitigating multipath effects in television systems |
| US6141393A (en) * | 1999-03-03 | 2000-10-31 | Motorola, Inc. | Method and device for channel estimation, equalization, and interference suppression |
| US6470047B1 (en) * | 2001-02-20 | 2002-10-22 | Comsys Communications Signal Processing Ltd. | Apparatus for and method of reducing interference in a communications receiver |
| US6987797B2 (en) * | 2002-07-26 | 2006-01-17 | Qualcomm Incorporated | Non-parametric matched filter receiver for wireless communication systems |
| US7738554B2 (en) | 2003-07-18 | 2010-06-15 | Microsoft Corporation | DC coefficient signaling at small quantization step sizes |
| US7602851B2 (en) * | 2003-07-18 | 2009-10-13 | Microsoft Corporation | Intelligent differential quantization of video coding |
| US10554985B2 (en) | 2003-07-18 | 2020-02-04 | Microsoft Technology Licensing, Llc | DC coefficient signaling at small quantization step sizes |
| US7580584B2 (en) * | 2003-07-18 | 2009-08-25 | Microsoft Corporation | Adaptive multiple quantization |
| US8218624B2 (en) * | 2003-07-18 | 2012-07-10 | Microsoft Corporation | Fractional quantization step sizes for high bit rates |
| US7801383B2 (en) * | 2004-05-15 | 2010-09-21 | Microsoft Corporation | Embedded scalar quantizers with arbitrary dead-zone ratios |
| US7388935B2 (en) * | 2004-06-15 | 2008-06-17 | Telefonktiebolaget Lm Ericsson (Publ) | Method of inverting nearly Toeplitz or block Toeplitz matrices |
| US8422546B2 (en) | 2005-05-25 | 2013-04-16 | Microsoft Corporation | Adaptive video encoding using a perceptual model |
| US7974340B2 (en) | 2006-04-07 | 2011-07-05 | Microsoft Corporation | Adaptive B-picture quantization control |
| US7995649B2 (en) | 2006-04-07 | 2011-08-09 | Microsoft Corporation | Quantization adjustment based on texture level |
| US8130828B2 (en) | 2006-04-07 | 2012-03-06 | Microsoft Corporation | Adjusting quantization to preserve non-zero AC coefficients |
| US8503536B2 (en) | 2006-04-07 | 2013-08-06 | Microsoft Corporation | Quantization adjustments for DC shift artifacts |
| US8059721B2 (en) | 2006-04-07 | 2011-11-15 | Microsoft Corporation | Estimating sample-domain distortion in the transform domain with rounding compensation |
| US8711925B2 (en) | 2006-05-05 | 2014-04-29 | Microsoft Corporation | Flexible quantization |
| US8238424B2 (en) | 2007-02-09 | 2012-08-07 | Microsoft Corporation | Complexity-based adaptive preprocessing for multiple-pass video compression |
| US8498335B2 (en) | 2007-03-26 | 2013-07-30 | Microsoft Corporation | Adaptive deadzone size adjustment in quantization |
| US8243797B2 (en) | 2007-03-30 | 2012-08-14 | Microsoft Corporation | Regions of interest for quality adjustments |
| US8442337B2 (en) | 2007-04-18 | 2013-05-14 | Microsoft Corporation | Encoding adjustments for animation content |
| WO2008151137A2 (en) * | 2007-06-01 | 2008-12-11 | The Trustees Of Columbia University In The City Of New York | Real-time time encoding and decoding machines |
| US8331438B2 (en) | 2007-06-05 | 2012-12-11 | Microsoft Corporation | Adaptive selection of picture-level quantization parameters for predicted video pictures |
| WO2009006405A1 (en) | 2007-06-28 | 2009-01-08 | The Trustees Of Columbia University In The City Of New York | Multi-input multi-output time encoding and decoding machines |
| FI20085161A0 (fi) * | 2008-02-22 | 2008-02-22 | Nokia Corp | Signaalin käsittely elektronisessa laitteessa |
| US8189933B2 (en) | 2008-03-31 | 2012-05-29 | Microsoft Corporation | Classifying and controlling encoding quality for textured, dark smooth and smooth video content |
| US8897359B2 (en) | 2008-06-03 | 2014-11-25 | Microsoft Corporation | Adaptive quantization for enhancement layer video coding |
| WO2012109407A1 (en) | 2011-02-09 | 2012-08-16 | The Trustees Of Columbia University In The City Of New York | Encoding and decoding machine with recurrent neural networks |
| US8644265B2 (en) * | 2011-09-30 | 2014-02-04 | Xiao-an Wang | Wideband analog channel information feedback |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2534737B2 (ja) * | 1987-11-24 | 1996-09-18 | 日本電気ホームエレクトロニクス株式会社 | ゴ―スト除去用フィルタ回路 |
| EP0421526B1 (en) * | 1989-10-06 | 1996-07-31 | Koninklijke Philips Electronics N.V. | Adaptive ghost cancellation circuit |
| US5121211A (en) | 1990-10-09 | 1992-06-09 | North American Philips Corporation | System for echo cancellation comprising an improved ghost cancellation reference signal |
| DE4028322A1 (de) * | 1990-09-06 | 1992-03-19 | Bosch Gmbh Robert | Verfahren zur verbesserung einer kanalparameterschaetzung und anordnung zu dessen durchfuehrung |
| US5111298A (en) * | 1990-10-09 | 1992-05-05 | North American Philips Corporation | Method and apparatus for communication channel identification and signal restoration |
| US5172232A (en) * | 1990-10-09 | 1992-12-15 | North American Philips Corporation | Method and apparatus for communication channel identification and signal restoration |
| US5179444A (en) * | 1990-10-09 | 1993-01-12 | North American Philips Corporation | System for echo cancellation comprising an improved ghost cancellation reference signal |
| US5047859A (en) * | 1990-10-09 | 1991-09-10 | North American Philips Corporation | Method and apparatus for communication channel identification and signal restoration |
| JP3351855B2 (ja) * | 1993-05-31 | 2002-12-03 | 株式会社日立国際電気 | 符号化伝送装置 |
-
1995
- 1995-12-18 US US08/573,857 patent/US5761088A/en not_active Expired - Fee Related
-
1996
- 1996-11-25 WO PCT/IB1996/001295 patent/WO1997023089A1/en not_active Ceased
- 1996-11-25 JP JP9522613A patent/JPH11501186A/ja not_active Abandoned
- 1996-11-25 DE DE69615005T patent/DE69615005T2/de not_active Expired - Fee Related
- 1996-11-25 EP EP96937462A patent/EP0809910B1/en not_active Expired - Lifetime
- 1996-11-25 KR KR1019970705745A patent/KR19980702348A/ko not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997023089A1 (en) | 1997-06-26 |
| EP0809910B1 (en) | 2001-09-05 |
| KR19980702348A (ko) | 1998-07-15 |
| DE69615005D1 (de) | 2001-10-11 |
| US5761088A (en) | 1998-06-02 |
| EP0809910A1 (en) | 1997-12-03 |
| DE69615005T2 (de) | 2002-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20031125 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20031125 |
|
| A72 | Notification of change in name of applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A721 Effective date: 20031125 |
|
| A762 | Written abandonment of application |
Free format text: JAPANESE INTERMEDIATE CODE: A762 Effective date: 20040921 |