SE9301955L - Sätt och apparat för filtrering av brus vid beslutsåterkopplad utjämning - Google Patents
Sätt och apparat för filtrering av brus vid beslutsåterkopplad utjämningInfo
- Publication number
- SE9301955L SE9301955L SE9301955A SE9301955A SE9301955L SE 9301955 L SE9301955 L SE 9301955L SE 9301955 A SE9301955 A SE 9301955A SE 9301955 A SE9301955 A SE 9301955A SE 9301955 L SE9301955 L SE 9301955L
- Authority
- SE
- Sweden
- Prior art keywords
- noise
- quantizer
- decision feedback
- feedback equalization
- filter
- Prior art date
Links
- 238000001914 filtration Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000001228 spectrum Methods 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/06—Control of transmission; Equalising by the transmitted signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Analogue/Digital Conversion (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/910,009 US5327460A (en) | 1992-07-07 | 1992-07-07 | Method and apparatus for filtering post decision feedback equalization noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE9301955D0 SE9301955D0 (sv) | 1993-06-08 |
| SE9301955L true SE9301955L (sv) | 1994-01-08 |
Family
ID=25428182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9301955A SE9301955L (sv) | 1992-07-07 | 1993-06-08 | Sätt och apparat för filtrering av brus vid beslutsåterkopplad utjämning |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5327460A (sv) |
| DE (1) | DE4322033B4 (sv) |
| FR (1) | FR2693611A1 (sv) |
| SE (1) | SE9301955L (sv) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5761243A (en) * | 1993-09-16 | 1998-06-02 | U.S. Philips Corporation | Digital receiver with noise filter which also serves as a feedback filter providing intersymbol interference reduction |
| US6285709B1 (en) * | 1997-10-31 | 2001-09-04 | 3 Com Corporation | Error filtering in a hybrid equalizer system |
| US6144697A (en) * | 1998-02-02 | 2000-11-07 | Purdue Research Foundation | Equalization techniques to reduce intersymbol interference |
| AU3218699A (en) | 1998-03-30 | 1999-10-18 | 3Com Corporation | Low complexity frequency estimator and interference cancellation method and device |
| US20030112370A1 (en) * | 2001-12-18 | 2003-06-19 | Chris Long | Adaptive expanded information capacity for communications systems |
| US6433835B1 (en) | 1998-04-17 | 2002-08-13 | Encamera Sciences Corporation | Expanded information capacity for existing communication transmission systems |
| US20030140351A1 (en) * | 1998-04-17 | 2003-07-24 | Hoarty W. Leo | Cable television system compatible bandwidth upgrade using embedded digital channels |
| GB2355629B (en) * | 1999-10-18 | 2004-02-11 | Mitel Corp | Precursor decision feedback equalizer (PDFE) |
| FI20000820A7 (sv) | 2000-04-06 | 2001-10-07 | Nokia Corp | Optimering av kanalekvalisator |
| US6870881B1 (en) * | 2000-08-24 | 2005-03-22 | Marvell International Ltd. | Feedforward equalizer for DFE based detector |
| US20030219085A1 (en) * | 2001-12-18 | 2003-11-27 | Endres Thomas J. | Self-initializing decision feedback equalizer with automatic gain control |
| US7180942B2 (en) * | 2001-12-18 | 2007-02-20 | Dotcast, Inc. | Joint adaptive optimization of soft decision device and feedback equalizer |
| US7580482B2 (en) * | 2003-02-19 | 2009-08-25 | Endres Thomas J | Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver |
| US7542508B2 (en) * | 2005-04-21 | 2009-06-02 | Lsi Logic Corporation | Continuous-time decision feedback equalizer |
| US8891607B2 (en) | 2012-09-06 | 2014-11-18 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Feed forward equalizer tap weight adaptation based on channel estimation |
| US8964827B2 (en) | 2013-03-07 | 2015-02-24 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Adaptation of equalizer settings using error signals sampled at several different phases |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583234A (en) * | 1983-08-15 | 1986-04-15 | Rockwell International Corporation | Decision feedback equalizing apparatus |
| NL8701333A (nl) * | 1987-06-09 | 1989-01-02 | Philips Nv | Inrichting voor het bestrijden van intersymboolinterferentie en ruis. |
| JPH0750863B2 (ja) * | 1987-09-25 | 1995-05-31 | 日本電気株式会社 | 受信器 |
| US4856031A (en) * | 1988-04-28 | 1989-08-08 | General Datacomm, Inc. | Adaptive multiharmonic phase jitter compensation |
| US5008903A (en) * | 1989-05-25 | 1991-04-16 | A.T. & T. Paradyne | Adaptive transmit pre-emphasis for digital modem computed from noise spectrum |
-
1992
- 1992-07-07 US US07/910,009 patent/US5327460A/en not_active Expired - Lifetime
-
1993
- 1993-05-07 FR FR9305508A patent/FR2693611A1/fr not_active Withdrawn
- 1993-06-08 SE SE9301955A patent/SE9301955L/sv not_active Application Discontinuation
- 1993-07-02 DE DE4322033A patent/DE4322033B4/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5327460A (en) | 1994-07-05 |
| SE9301955D0 (sv) | 1993-06-08 |
| DE4322033A1 (de) | 1994-01-13 |
| DE4322033B4 (de) | 2006-08-17 |
| FR2693611A1 (fr) | 1994-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 9301955-2 |