BR9509695A - Métodos de processar informações recebidas em sequências estimadas de simbolos e uma sequência de simbolos de sequência e sistema de comunicações - Google Patents
Métodos de processar informações recebidas em sequências estimadas de simbolos e uma sequência de simbolos de sequência e sistema de comunicaçõesInfo
- Publication number
- BR9509695A BR9509695A BR9509695A BR9509695A BR9509695A BR 9509695 A BR9509695 A BR 9509695A BR 9509695 A BR9509695 A BR 9509695A BR 9509695 A BR9509695 A BR 9509695A BR 9509695 A BR9509695 A BR 9509695A
- Authority
- BR
- Brazil
- Prior art keywords
- sequence
- methods
- information received
- communications system
- processing information
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
- H03M13/6331—Error control coding in combination with equalisation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
- H03M13/4161—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management
- H03M13/4169—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing path management using traceback
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
Landscapes
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Error Detection And Correction (AREA)
- Semiconductor Memories (AREA)
- Dc Digital Transmission (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/343,925 US5586128A (en) | 1994-11-17 | 1994-11-17 | System for decoding digital data using a variable decision depth |
PCT/US1995/015692 WO1996016483A2 (en) | 1994-11-17 | 1995-11-16 | A system for decoding digital data using a variable decision depth |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9509695A true BR9509695A (pt) | 1997-10-14 |
Family
ID=23348283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9509695A BR9509695A (pt) | 1994-11-17 | 1995-11-16 | Métodos de processar informações recebidas em sequências estimadas de simbolos e uma sequência de simbolos de sequência e sistema de comunicações |
Country Status (10)
Country | Link |
---|---|
US (1) | US5586128A (pt) |
EP (1) | EP0792540B1 (pt) |
JP (1) | JPH11500586A (pt) |
CN (1) | CN1171869A (pt) |
AU (1) | AU695996B2 (pt) |
BR (1) | BR9509695A (pt) |
CA (1) | CA2205602A1 (pt) |
DE (1) | DE69515684T2 (pt) |
MX (1) | MX9703536A (pt) |
WO (1) | WO1996016483A2 (pt) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
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US5684811A (en) * | 1995-09-01 | 1997-11-04 | Motorola, Inc. | Method and apparatus for decoding convolutionally encoded information |
US6028899A (en) * | 1995-10-24 | 2000-02-22 | U.S. Philips Corporation | Soft-output decoding transmission system with reduced memory requirement |
US5742621A (en) * | 1995-11-02 | 1998-04-21 | Motorola Inc. | Method for implementing an add-compare-select butterfly operation in a data processing system and instruction therefor |
US5905742A (en) * | 1995-12-27 | 1999-05-18 | Ericsson Inc. | Method and apparauts for symbol decoding |
JP3154679B2 (ja) * | 1996-10-18 | 2001-04-09 | 三菱電機株式会社 | 連接符号の誤り訂正復号装置及び復号方法 |
US6173429B1 (en) * | 1997-03-14 | 2001-01-09 | Harris Corporation | Apparatus for providing error correction data in a digital data transfer system |
US6212661B1 (en) | 1997-08-11 | 2001-04-03 | Seagate Technology, Inc. | Static viterbi detector for channels utilizing a code having time varying constraints |
CN1201479C (zh) | 1997-10-08 | 2005-05-11 | 西加特技术有限责任公司 | 在使用判定反馈的磁记录中检测数据的方法和设备 |
WO1999023760A1 (en) * | 1997-11-03 | 1999-05-14 | Harris Corporation | Receiver for a reconfigurable radio system and method therefor |
US6125149A (en) * | 1997-11-05 | 2000-09-26 | At&T Corp. | Successively refinable trellis coded quantization |
US6493162B1 (en) | 1997-12-05 | 2002-12-10 | Seagate Technology Llc | Frame synchronization for viterbi detector |
JP3131412B2 (ja) * | 1997-12-12 | 2001-01-31 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | デ−タ・スライス回路およびデ−タ・スライス方法 |
US6081738A (en) * | 1998-01-15 | 2000-06-27 | Lumend, Inc. | Method and apparatus for the guided bypass of coronary occlusions |
WO1999035977A1 (en) | 1998-01-16 | 1999-07-22 | Lumend, Inc. | Catheter apparatus for treating arterial occlusions |
FR2776873B1 (fr) * | 1998-03-25 | 2000-06-02 | Matra Communication | Procede de detection d'une sequence de symboles discrets a partir d'un signal d'observation, et processeur de viterbi mettant en oeuvre un tel procede |
KR100277685B1 (ko) * | 1998-10-09 | 2001-01-15 | 정선종 | 트렐리스 복호를 사용하는 복호기에서의 경로 메트릭의 통계치를 이용한 복잡도 감소 방법 |
US6760438B1 (en) * | 1999-07-01 | 2004-07-06 | Nortel Networks Limited | System and method for Viterbi decoding on encrypted data |
DE60021697T2 (de) * | 1999-10-13 | 2006-06-08 | Koninklijke Philips Electronics N.V. | Verfahren zur bestimmung einer trellisroute mit einer referenzmatrix |
US6961392B2 (en) * | 2000-08-18 | 2005-11-01 | Texas Instruments Incorporated | Joint equalization and decoding using a search-based decoding algorithm |
US20020031195A1 (en) * | 2000-09-08 | 2002-03-14 | Hooman Honary | Method and apparatus for constellation decoder |
US6961391B2 (en) | 2001-03-30 | 2005-11-01 | Motorola, Inc. | Signal processor used for symbol recovery and methods therein |
DE10155059A1 (de) * | 2001-11-09 | 2003-05-22 | Infineon Technologies Ag | Verfahren und Einrichtung zur beschleunigten Akquisition von kanalkodierten Steuerdaten, insbesondere des SIGNAL-Felds beim Standard IEEE 802.11a |
AU2002357739A1 (en) * | 2001-11-16 | 2003-06-10 | Morpho Technologies | Viterbi convolutional coding method and apparatus |
TW536872B (en) * | 2002-07-03 | 2003-06-11 | Via Optical Solution Inc | Viterbi decoding device and method for multi-input data and multi-output data |
AU2003259781A1 (en) * | 2002-08-13 | 2004-02-25 | Vanu, Inc. | Convolutional decoding |
US7171609B2 (en) * | 2003-02-03 | 2007-01-30 | Verisilicon Holdings Company Ltd. | Processor and method for convolutional decoding |
US20040268208A1 (en) * | 2003-06-27 | 2004-12-30 | Seagate Technology Llc | Computation of branch metric values in a data detector |
FR2857531B1 (fr) * | 2003-07-11 | 2005-12-02 | Cit Alcatel | Procede pour determiner une route spectrale dans un reseau de telecommunication optique |
US20050071734A1 (en) * | 2003-09-26 | 2005-03-31 | Broadcom Corporation | Methods and systems for Viterbi decoding |
US7287212B2 (en) * | 2003-09-26 | 2007-10-23 | Broadcom Corporation | Methods and systems for Viterbi decoding |
US7366462B2 (en) | 2003-10-24 | 2008-04-29 | Qualcomm Incorporated | Method and apparatus for seamlessly switching reception between multimedia streams in a wireless communication system |
US7392459B2 (en) * | 2004-04-14 | 2008-06-24 | Lucent Technologies Inc. | Method and apparatus for preventing a false pass of a cyclic redundancy check at a receiver during weak receiving conditions in a wireless communications system |
GB0416107D0 (en) * | 2004-07-19 | 2004-08-18 | British Telecomm | Wavelength selection |
GB0416110D0 (en) * | 2004-07-19 | 2004-08-18 | British Telecomm | Path establishment |
WO2006072179A1 (en) * | 2005-01-07 | 2006-07-13 | Med-Eng Systems Inc. | Protective garment |
US7752531B2 (en) * | 2007-09-12 | 2010-07-06 | Seagate Technology Llc | Defect sensing Viterbi based detector |
US8300739B2 (en) * | 2009-04-21 | 2012-10-30 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for generating soft bit values in reduced-state equalizers |
EP2797247A1 (en) | 2013-04-24 | 2014-10-29 | British Telecommunications Public Limited Company | Optical data transmission |
WO2014192269A1 (ja) * | 2013-05-29 | 2014-12-04 | Necネットワーク・センサ株式会社 | 適応等化処理回路および適応等化処理方法 |
US9654248B2 (en) | 2013-10-11 | 2017-05-16 | British Telecommunications Public Limited Company | Optical data transmission method and apparatus |
WO2019243021A1 (en) | 2018-06-21 | 2019-12-26 | British Telecommunications Public Limited Company | Path selection for content delivery network |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3789359A (en) * | 1972-10-04 | 1974-01-29 | Harris Intertype Corp | Synchronism indicator for a convolutional decoder |
US4087787A (en) * | 1977-04-19 | 1978-05-02 | Bell Telephone Laboratories, Incorporated | Decoder for implementing an approximation of the Viterbi algorithm using analog processing techniques |
JPS6059579B2 (ja) * | 1979-03-14 | 1985-12-25 | ソマ−ル株式会社 | 複写機用露光装置 |
US4583078A (en) * | 1984-11-13 | 1986-04-15 | Communications Satellite Corporation | Serial Viterbi decoder |
US4868830A (en) * | 1985-09-27 | 1989-09-19 | California Institute Of Technology | Method and apparatus for implementing a traceback maximum-likelihood decoder in a hypercube network |
US4833693A (en) * | 1985-11-21 | 1989-05-23 | Codex Corporation | Coded modulation system using interleaving for decision-feedback equalization |
JPS62233933A (ja) * | 1986-04-03 | 1987-10-14 | Toshiba Corp | ヴイタビ復号法 |
US4998253A (en) * | 1988-03-11 | 1991-03-05 | Kokusai Denshin Denwa Co., Ltd. | Syndrome sequential decoder |
JP2531533B2 (ja) * | 1988-08-25 | 1996-09-04 | 富士通株式会社 | 逐次復号器 |
SE462942B (sv) * | 1989-01-26 | 1990-09-17 | Ericsson Telefon Ab L M | Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare |
SE462943B (sv) * | 1989-01-26 | 1990-09-17 | Ericsson Telefon Ab L M | Saett och anordning foer frekvensstyrning av en koherent radiomottagare |
US5150381A (en) * | 1989-02-16 | 1992-09-22 | Codex Corporation | Trellis shaping for modulation systems |
DE3910739C3 (de) * | 1989-04-03 | 1996-11-21 | Deutsche Forsch Luft Raumfahrt | Verfahren zum Verallgemeinern des Viterbi-Algorithmus und Einrichtungen zur Durchführung des Verfahrens |
US5208816A (en) * | 1989-08-18 | 1993-05-04 | At&T Bell Laboratories | Generalized viterbi decoding algorithms |
SE465697B (sv) * | 1989-09-19 | 1991-10-14 | Ericsson Telefon Ab L M | Saett att i ett digitalt radiooeverfoeringssystem foer oeverfoering av signaler mellan en saendande och en mottagande radiostation alstra godhetstal foer hos den mottagande radiostationen erhaallna binaera siffror |
SE464902B (sv) * | 1989-10-24 | 1991-06-24 | Ericsson Telefon Ab L M | Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet |
SE465245B (sv) * | 1989-12-22 | 1991-08-12 | Ericsson Telefon Ab L M | Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser |
SE465597B (sv) * | 1990-02-16 | 1991-09-30 | Ericsson Telefon Ab L M | Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner |
DE69129768T2 (de) * | 1990-03-30 | 1999-02-25 | Nec Corp., Tokio/Tokyo | Störungsunempfindlicher Raumdiversityempfänger |
DE4027496A1 (de) * | 1990-08-30 | 1992-03-12 | Deutsche Forsch Luft Raumfahrt | Spreizverfahren zur uebertragung codierter, digitaler nachrichten |
US5151904A (en) * | 1990-09-27 | 1992-09-29 | The Titan Corporation | Reconfigurable, multi-user viterbi decoder |
FR2686751B1 (fr) * | 1992-01-24 | 1997-03-28 | France Telecom | Procede de decodage a maximum de vraisemblance a treillis de decodage sous-echantillonne, et dispositif de decodage correspondant. |
US5280489A (en) * | 1992-04-15 | 1994-01-18 | International Business Machines Corporation | Time-varying Viterbi detector for control of error event length |
US5341387A (en) * | 1992-08-27 | 1994-08-23 | Quantum Corporation | Viterbi detector having adjustable detection thresholds for PRML class IV sampling data detection |
EP0656712A1 (en) * | 1993-11-16 | 1995-06-07 | AT&T Corp. | Viterbi equaliser using variable length tracebacks |
-
1994
- 1994-11-17 US US08/343,925 patent/US5586128A/en not_active Expired - Fee Related
-
1995
- 1995-11-16 EP EP95943651A patent/EP0792540B1/en not_active Expired - Lifetime
- 1995-11-16 CA CA002205602A patent/CA2205602A1/en not_active Abandoned
- 1995-11-16 WO PCT/US1995/015692 patent/WO1996016483A2/en not_active Application Discontinuation
- 1995-11-16 BR BR9509695A patent/BR9509695A/pt not_active IP Right Cessation
- 1995-11-16 AU AU45070/96A patent/AU695996B2/en not_active Ceased
- 1995-11-16 MX MX9703536A patent/MX9703536A/es unknown
- 1995-11-16 JP JP8517114A patent/JPH11500586A/ja active Pending
- 1995-11-16 DE DE69515684T patent/DE69515684T2/de not_active Expired - Lifetime
- 1995-11-16 CN CN95197260A patent/CN1171869A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US5586128A (en) | 1996-12-17 |
EP0792540A2 (en) | 1997-09-03 |
DE69515684D1 (de) | 2000-04-20 |
CA2205602A1 (en) | 1996-05-30 |
DE69515684T2 (de) | 2000-07-20 |
AU4507096A (en) | 1996-06-17 |
WO1996016483A2 (en) | 1996-05-30 |
CN1171869A (zh) | 1998-01-28 |
EP0792540B1 (en) | 2000-03-15 |
WO1996016483A3 (en) | 1996-10-10 |
JPH11500586A (ja) | 1999-01-12 |
MX9703536A (es) | 1998-02-28 |
AU695996B2 (en) | 1998-08-27 |
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Legal Events
Date | Code | Title | Description |
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FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FF | Decision: intention to grant | ||
FG9A | Patent or certificate of addition granted | ||
B24C | Patent annual fee: request for for restoration |
Free format text: REFERENTE A 8A , 9A , 10A , 11A , 12A , 13A E 14A ANUIDADES. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE AO NAO CUMPRIMENTO DO DESPACHO 24.3 NA RPI 2048 DE 06/04/2010 E COMPROVACAO DO RECOLHIMENTO DA 15A, 16A E 17A ANUIDADES. |