ITRM950715A0 - - Google Patents
Info
- Publication number
- ITRM950715A0 ITRM950715A0 ITRM950715A ITRM950715A ITRM950715A0 IT RM950715 A0 ITRM950715 A0 IT RM950715A0 IT RM950715 A ITRM950715 A IT RM950715A IT RM950715 A ITRM950715 A IT RM950715A IT RM950715 A0 ITRM950715 A0 IT RM950715A0
- Authority
- IT
- Italy
Links
Classifications
-
- 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
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Error Detection And Correction (AREA)
- Communication Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/332,680 US5706313A (en) | 1994-11-01 | 1994-11-01 | Soft decision digital communication method and apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITRM950715A0 true ITRM950715A0 (US06373033-20020416-M00071.png) | 1995-10-30 |
| ITRM950715A1 ITRM950715A1 (it) | 1997-04-30 |
| IT1276582B1 IT1276582B1 (it) | 1997-11-03 |
Family
ID=23299356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT95RM000715A IT1276582B1 (it) | 1994-11-01 | 1995-10-30 | Procedimento ed apparecchio per comunicazioni digitali con metrica decisionale morbida |
Country Status (13)
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2745139A1 (fr) * | 1996-02-21 | 1997-08-22 | Philips Electronics Nv | Systeme de transmissions numeriques a modulation a phase continue |
| EP0795976A3 (de) * | 1996-03-13 | 2000-02-02 | Ascom Tech Ag | Verfahren zum Empfangen eines nach einem ETS-HIPERLAN-Standard kodierten und modulierten Signals |
| US5940446A (en) * | 1997-04-28 | 1999-08-17 | Stanford Telecommunications, Inc. | Maximum likelihood detection of MPSK bursts with inserted reference symbols |
| US6263466B1 (en) * | 1998-03-05 | 2001-07-17 | Teledesic Llc | System and method of separately coding the header and payload of a data packet for use in satellite data communication |
| US6487255B1 (en) | 1998-08-31 | 2002-11-26 | Ericsson Inc. | Information generation for coherent demodulation of differentially encoded signals |
| US6567474B1 (en) | 1999-03-02 | 2003-05-20 | Phonex Corporation | Digital wireless phone/modem jack capable of communications over the power lines using differential binary phase shift keying (DBPSK) |
| JP3801811B2 (ja) * | 1999-05-17 | 2006-07-26 | 京セラ株式会社 | 携帯テレビ電話端末 |
| JP3776283B2 (ja) * | 2000-03-17 | 2006-05-17 | 三菱電機株式会社 | 復調器、受信機、および通信システム |
| US6694469B1 (en) | 2000-04-14 | 2004-02-17 | Qualcomm Incorporated | Method and an apparatus for a quick retransmission of signals in a communication system |
| US7035354B2 (en) * | 2000-12-08 | 2006-04-25 | International Business Machine Corporation | CDMA multi-user detection with a real symbol constellation |
| JP3549519B2 (ja) * | 2002-04-26 | 2004-08-04 | 沖電気工業株式会社 | 軟出力復号器 |
| US7471903B1 (en) | 2002-06-26 | 2008-12-30 | Nortel Networks Limited | Optical communication system |
| US7161975B2 (en) * | 2002-11-27 | 2007-01-09 | International Business Machines Corporation | Enhancing CDMA multiuser detection by constraining soft decisions |
| US7191385B2 (en) * | 2003-04-24 | 2007-03-13 | Locus Location Systems, Llc | Error correction in a locating method and system |
| DE102004061857A1 (de) * | 2004-09-28 | 2006-04-06 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und Vorrichtung zur Trägerfrequenzsynchronisierung eines Offset-Quadraturphasenmodulierten Signals |
| US7496153B2 (en) * | 2004-10-14 | 2009-02-24 | Mitsubishi Electric Research Laboratories, Inc. | Modulating signals for coherent and differentially coherent receivers |
| CN100385886C (zh) * | 2004-11-18 | 2008-04-30 | 中国人民解放军理工大学通信工程学院 | 正交扩频差分相位调制中的差分比特软值输出方法 |
| US7398454B2 (en) * | 2004-12-21 | 2008-07-08 | Tyco Telecommunications (Us) Inc. | System and method for forward error correction decoding using soft information |
| US20060233233A1 (en) * | 2005-03-11 | 2006-10-19 | Welborn Matthew L | Method and device for receiving or transmitting a signal with encoded data |
| US7405678B2 (en) * | 2006-09-25 | 2008-07-29 | International Business Machines Corporation | Method of retrieving data from a storage device using a recovered read-back parameter |
| US20090161797A1 (en) * | 2007-06-08 | 2009-06-25 | Cowles Philip R | Satellite detection of automatic identification system signals |
| US7876865B2 (en) * | 2007-06-08 | 2011-01-25 | COM DEV International Ltd | System and method for decoding automatic identification system signals |
| US7860191B2 (en) | 2007-09-07 | 2010-12-28 | Qualcomm Incorporated | Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying) |
| US8780788B2 (en) * | 2009-09-25 | 2014-07-15 | Com Dev International Ltd. | Systems and methods for decoding automatic identification system signals |
| US9331774B2 (en) | 2010-06-09 | 2016-05-03 | Exactearth Ltd. | Systems and methods for segmenting a satellite field of view for detecting radio frequency signals |
| US9015567B2 (en) | 2012-04-12 | 2015-04-21 | Com Dev International Ltd. | Methods and systems for consistency checking and anomaly detection in automatic identification system signal data |
| CN105099609B (zh) * | 2014-05-15 | 2018-06-26 | 华为技术有限公司 | 软判决译码的方法和装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742533A (en) * | 1987-01-02 | 1988-05-03 | Motorola, Inc. | Soft decision digital communication apparatus |
| DE3910739C3 (de) * | 1989-04-03 | 1996-11-21 | Deutsche Forsch Luft Raumfahrt | Verfahren zum Verallgemeinern des Viterbi-Algorithmus und Einrichtungen zur Durchführung des Verfahrens |
| US5208836A (en) * | 1989-10-27 | 1993-05-04 | Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. | Method for bit detection at the receiver end of differentially coded binary or quaternary PSK signals in differential-coherent demodulation |
| US5134635A (en) * | 1990-07-30 | 1992-07-28 | Motorola, Inc. | Convolutional decoder using soft-decision decoding with channel state information |
| US5214675A (en) * | 1991-07-02 | 1993-05-25 | Motorola, Inc. | System and method for calculating channel gain and noise variance of a communication channel |
| US5204874A (en) * | 1991-08-28 | 1993-04-20 | Motorola, Inc. | Method and apparatus for using orthogonal coding in a communication system |
| DE9301170U1 (de) * | 1993-01-28 | 1994-06-01 | Robert Bosch Gmbh, 70469 Stuttgart | Inkohärenter Demodulator mit Viterbi-Detektion |
| EP0679000A1 (en) * | 1994-04-22 | 1995-10-25 | Koninklijke Philips Electronics N.V. | Soft quantisation |
-
1994
- 1994-11-01 US US08/332,680 patent/US5706313A/en not_active Expired - Fee Related
-
1995
- 1995-10-20 CA CA002161057A patent/CA2161057C/en not_active Expired - Fee Related
- 1995-10-25 JP JP7299314A patent/JPH08214037A/ja active Pending
- 1995-10-26 GB GB9521907A patent/GB2294851B/en not_active Expired - Fee Related
- 1995-10-27 ES ES009502093A patent/ES2113300B1/es not_active Expired - Lifetime
- 1995-10-27 FR FR9512691A patent/FR2726420A1/fr active Pending
- 1995-10-30 IT IT95RM000715A patent/IT1276582B1/it active IP Right Grant
- 1995-10-31 RU RU95118726A patent/RU2121232C1/ru active
- 1995-10-31 CN CN95118138.6A patent/CN1130832A/zh active Pending
- 1995-10-31 DE DE19540652A patent/DE19540652C2/de not_active Expired - Fee Related
- 1995-10-31 AU AU34543/95A patent/AU704779B2/en not_active Ceased
- 1995-10-31 FI FI955196A patent/FI955196A/fi unknown
- 1995-10-31 BR BR9505033A patent/BR9505033A/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US5706313A (en) | 1998-01-06 |
| CA2161057A1 (en) | 1996-05-02 |
| DE19540652C2 (de) | 1999-07-15 |
| ITRM950715A1 (it) | 1997-04-30 |
| CN1130832A (zh) | 1996-09-11 |
| FI955196A (fi) | 1996-05-02 |
| FI955196A0 (fi) | 1995-10-31 |
| IT1276582B1 (it) | 1997-11-03 |
| CA2161057C (en) | 1999-01-19 |
| FR2726420A1 (fr) | 1996-05-03 |
| ES2113300A1 (es) | 1998-04-16 |
| JPH08214037A (ja) | 1996-08-20 |
| AU704779B2 (en) | 1999-05-06 |
| GB2294851A (en) | 1996-05-08 |
| AU3454395A (en) | 1996-05-09 |
| RU2121232C1 (ru) | 1998-10-27 |
| BR9505033A (pt) | 1997-10-21 |
| DE19540652A1 (de) | 1996-05-02 |
| GB2294851B (en) | 1999-04-14 |
| GB9521907D0 (en) | 1996-01-03 |
| ES2113300B1 (es) | 1999-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted |