IT1291877B1 - Circuito rivelatore di errori per ricevitore digitale basato su soglia variabile dipendente dalla qualita' dei segnali - Google Patents
Circuito rivelatore di errori per ricevitore digitale basato su soglia variabile dipendente dalla qualita' dei segnaliInfo
- Publication number
- IT1291877B1 IT1291877B1 IT97RM000213A ITRM970213A IT1291877B1 IT 1291877 B1 IT1291877 B1 IT 1291877B1 IT 97RM000213 A IT97RM000213 A IT 97RM000213A IT RM970213 A ITRM970213 A IT RM970213A IT 1291877 B1 IT1291877 B1 IT 1291877B1
- Authority
- IT
- Italy
- Prior art keywords
- signals
- quality
- detector circuit
- error detector
- digital receiver
- Prior art date
Links
Classifications
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/201—Frame classification, e.g. bad, good or erased
-
- 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
-
- 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
- H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
-
- 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
-
- 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
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding
-
- 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
- H04L2001/0098—Unequal error protection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Quality & Reliability (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/632,701 US5815507A (en) | 1996-04-15 | 1996-04-15 | Error detector circuit for digital receiver using variable threshold based on signal quality |
Publications (2)
Publication Number | Publication Date |
---|---|
ITRM970213A1 ITRM970213A1 (it) | 1998-10-14 |
IT1291877B1 true IT1291877B1 (it) | 1999-01-21 |
Family
ID=24536573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT97RM000213A IT1291877B1 (it) | 1996-04-15 | 1997-04-14 | Circuito rivelatore di errori per ricevitore digitale basato su soglia variabile dipendente dalla qualita' dei segnali |
Country Status (5)
Country | Link |
---|---|
US (1) | US5815507A (it) |
CN (1) | CN1091980C (it) |
FR (1) | FR2748169B1 (it) |
GB (1) | GB2312359B (it) |
IT (1) | IT1291877B1 (it) |
Families Citing this family (82)
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FR2737948B1 (fr) * | 1995-08-16 | 1997-10-17 | Alcatel Mobile Comm France | Dispositif de commande de volume sonore pour recepteur de signaux de parole codes par blocs |
JP3009031B2 (ja) * | 1996-04-16 | 2000-02-14 | 日本電気株式会社 | 移動体交換局 |
FI113600B (fi) * | 1996-09-17 | 2004-05-14 | Nokia Corp | Signalointi digitaalisessa matkaviestinjärjestelmässä |
US6205130B1 (en) * | 1996-09-25 | 2001-03-20 | Qualcomm Incorporated | Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
US7788092B2 (en) * | 1996-09-25 | 2010-08-31 | Qualcomm Incorporated | Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
US6243568B1 (en) * | 1997-03-22 | 2001-06-05 | Sharp Laboratories Of America, Inc. | System and method for intuitively indicating signal quality in a wireless digital communications network |
JP2912323B1 (ja) | 1998-01-29 | 1999-06-28 | 日本放送協会 | デジタルデータの受信装置 |
US6066980A (en) * | 1998-04-07 | 2000-05-23 | Lsi Logic Corporation | Near Nyquist rate variable rate receiver |
GB2337904B (en) * | 1998-05-29 | 2003-03-12 | Nec Technologies | Frame erasure for digital data transmision systems |
GB2339123B (en) * | 1998-07-03 | 2003-03-26 | Nec Technologies | Frame erasure for digital transmission systems |
JP3327227B2 (ja) * | 1998-11-11 | 2002-09-24 | 三菱マテリアル株式会社 | 無線通信システム及び記録媒体 |
US6298084B1 (en) * | 1998-11-24 | 2001-10-02 | Motorola, Inc. | Bad frame detector and turbo decoder |
FR2786636B1 (fr) * | 1998-11-26 | 2001-05-04 | Cit Alcatel | Procede de reception de signaux, notamment de signaux de signalisation |
GB2348087B (en) * | 1999-03-13 | 2003-08-13 | Nec Technologies | Detection of unreliable frames in digital data transmission systems |
EP1059755A1 (en) * | 1999-06-09 | 2000-12-13 | Lucent Technologies Inc. | Unequal error protection for packet switched networks |
US6480472B1 (en) * | 1999-07-21 | 2002-11-12 | Qualcomm Incorporated | Mobile station supervision of the forward dedicated control channel when in the discontinuous transmission mode |
AU1034700A (en) * | 1999-10-11 | 2001-04-23 | Nokia Networks Oy | A method for identifying bad frames |
ATE304769T1 (de) * | 1999-12-27 | 2005-09-15 | Eine mobilstation mit einer auswahl zwischen zwei entzerrern | |
FR2804260B1 (fr) * | 2000-01-21 | 2002-10-18 | Mitsubishi Electric Inf Tech | Procede de transmission numerique de type a codage correcteur d'erreurs |
US6744748B1 (en) * | 2000-05-25 | 2004-06-01 | Vtech Communications Ltd. | Method and apparatus for monitoring errors in a wireless transceiver |
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US6738945B2 (en) * | 2001-03-14 | 2004-05-18 | Silicon Integrated System Corp. | Signal transmission device and method for avoiding transmission error |
DE10140114A1 (de) * | 2001-08-16 | 2003-03-13 | Infineon Technologies Ag | Vorrichtung und Verfahren zur Qualitätsprüfung von über einen Funkkanal übertragenen Datenpaketen |
US8812706B1 (en) | 2001-09-06 | 2014-08-19 | Qualcomm Incorporated | Method and apparatus for compensating for mismatched delays in signals of a mobile display interface (MDDI) system |
US6973579B2 (en) | 2002-05-07 | 2005-12-06 | Interdigital Technology Corporation | Generation of user equipment identification specific scrambling code for the high speed shared control channel |
CN101938493B (zh) | 2003-06-02 | 2013-10-16 | 高通股份有限公司 | 生成并实施一用于更高数据率的讯号协议和接口 |
CN101194482B (zh) | 2003-08-13 | 2015-11-25 | 高通股份有限公司 | 一种使通信系统中的主机与客户机间读写至少一个寄存器的方法与系统 |
US7127663B2 (en) * | 2003-08-28 | 2006-10-24 | Qualcomm Incorporate | Bad frame indicator for radio-telephone receivers in GSM mobile systems |
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US7188283B1 (en) * | 2003-09-11 | 2007-03-06 | Xilinx, Inc. | Communication signal testing with a programmable logic device |
US7817731B2 (en) * | 2003-09-22 | 2010-10-19 | Infineon Technologies Ag | Amplitude compression of signals in a multicarrier system |
US7453853B2 (en) * | 2003-10-09 | 2008-11-18 | Ericsson Technology Licensing Ab | Adaptive correlation of access codes in a packet-based communication system |
US7406070B2 (en) * | 2003-10-09 | 2008-07-29 | Telefonaktiebolaget L M Ericsson (Publ) | Adaptive threshold for HS-SCCH part 1 decoding |
CN1894931A (zh) | 2003-10-15 | 2007-01-10 | 高通股份有限公司 | 高数据速率接口 |
AU2004307162A1 (en) | 2003-10-29 | 2005-05-12 | Qualcomm Incorporated | High data rate interface |
EP2242231A1 (en) | 2003-11-12 | 2010-10-20 | Qualcomm Incorporated | High data rate interface with improved link control |
WO2005053272A1 (en) | 2003-11-25 | 2005-06-09 | Qualcomm Incorporated | High data rate interface with improved link synchronization |
EP2247068B1 (en) * | 2003-12-08 | 2013-09-25 | Qualcomm Incorporated | High data rate interface with improved link synchronization |
JP3963464B2 (ja) * | 2004-02-24 | 2007-08-22 | 株式会社東芝 | 無線通信装置及び周波数チャネル選択方法 |
BRPI0508582A (pt) | 2004-03-10 | 2007-08-14 | Qualcomm Inc | equipamento e método de interface de alta taxa de dados |
WO2005091593A1 (en) | 2004-03-17 | 2005-09-29 | Qualcomm Incorporated | High data rate interface apparatus and method |
US8645566B2 (en) | 2004-03-24 | 2014-02-04 | Qualcomm Incorporated | High data rate interface apparatus and method |
ATE518343T1 (de) | 2004-06-04 | 2011-08-15 | Qualcomm Inc | Schnittstellenvorrichtung und -verfahren für hohe datenraten |
US8650304B2 (en) | 2004-06-04 | 2014-02-11 | Qualcomm Incorporated | Determining a pre skew and post skew calibration data rate in a mobile display digital interface (MDDI) communication system |
US7197692B2 (en) * | 2004-06-18 | 2007-03-27 | Qualcomm Incorporated | Robust erasure detection and erasure-rate-based closed loop power control |
US8452316B2 (en) | 2004-06-18 | 2013-05-28 | Qualcomm Incorporated | Power control for a wireless communication system utilizing orthogonal multiplexing |
US7536626B2 (en) | 2004-06-18 | 2009-05-19 | Qualcomm Incorporated | Power control using erasure techniques |
KR100887299B1 (ko) | 2004-06-18 | 2009-03-06 | 콸콤 인코포레이티드 | 강건한 소거 검출 및 소거율 기반 폐루프 전력 제어 |
US7594151B2 (en) * | 2004-06-18 | 2009-09-22 | Qualcomm, Incorporated | Reverse link power control in an orthogonal system |
US7240252B1 (en) * | 2004-06-30 | 2007-07-03 | Sprint Spectrum L.P. | Pulse interference testing in a CDMA communication system |
US8873584B2 (en) | 2004-11-24 | 2014-10-28 | Qualcomm Incorporated | Digital data interface device |
US8539119B2 (en) | 2004-11-24 | 2013-09-17 | Qualcomm Incorporated | Methods and apparatus for exchanging messages having a digital data interface device message format |
US8692838B2 (en) | 2004-11-24 | 2014-04-08 | Qualcomm Incorporated | Methods and systems for updating a buffer |
US8723705B2 (en) | 2004-11-24 | 2014-05-13 | Qualcomm Incorporated | Low output skew double data rate serial encoder |
US8699330B2 (en) * | 2004-11-24 | 2014-04-15 | Qualcomm Incorporated | Systems and methods for digital data transmission rate control |
US8667363B2 (en) | 2004-11-24 | 2014-03-04 | Qualcomm Incorporated | Systems and methods for implementing cyclic redundancy checks |
US7742444B2 (en) | 2005-03-15 | 2010-06-22 | Qualcomm Incorporated | Multiple other sector information combining for power control in a wireless communication system |
US8848574B2 (en) | 2005-03-15 | 2014-09-30 | Qualcomm Incorporated | Interference control in a wireless communication system |
US8942639B2 (en) | 2005-03-15 | 2015-01-27 | Qualcomm Incorporated | Interference control in a wireless communication system |
US8750908B2 (en) | 2005-06-16 | 2014-06-10 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
US9055552B2 (en) | 2005-06-16 | 2015-06-09 | Qualcomm Incorporated | Quick paging channel with reduced probability of missed page |
WO2007050911A1 (en) | 2005-10-27 | 2007-05-03 | Qualcomm Incorporated | A method and apparatus for transmitting and receiving access grant block over f-ssch in wireless communication system |
JP5430938B2 (ja) | 2005-10-27 | 2014-03-05 | クゥアルコム・インコーポレイテッド | 無線通信システムにおける逆方向リンク・ローディングを推定するための方法及び装置 |
US20090207790A1 (en) | 2005-10-27 | 2009-08-20 | Qualcomm Incorporated | Method and apparatus for settingtuneawaystatus in an open state in wireless communication system |
US7434117B1 (en) * | 2005-10-28 | 2008-10-07 | Mediatek Inc. | Method and apparatus of determining bad frame indication for speech service in a wireless communication system |
US8730069B2 (en) | 2005-11-23 | 2014-05-20 | Qualcomm Incorporated | Double data rate serial encoder |
US8692839B2 (en) | 2005-11-23 | 2014-04-08 | Qualcomm Incorporated | Methods and systems for updating a buffer |
KR101181723B1 (ko) * | 2006-02-07 | 2012-09-19 | 삼성전자주식회사 | 무선 통신 시스템에서 페이징 메시지 디코딩 방법과 장치 |
CN101454681B (zh) * | 2006-03-31 | 2012-06-27 | 安立股份有限公司 | 被测试信号分析装置 |
US8442572B2 (en) | 2006-09-08 | 2013-05-14 | Qualcomm Incorporated | Method and apparatus for adjustments for delta-based power control in wireless communication systems |
US8670777B2 (en) | 2006-09-08 | 2014-03-11 | Qualcomm Incorporated | Method and apparatus for fast other sector interference (OSI) adjustment |
US8166354B2 (en) * | 2006-11-30 | 2012-04-24 | Research In Motion Limited | Apparatus, and associated method, for estimating a bit error rate of data communicated in a communication system |
DE102007029660B4 (de) * | 2007-06-27 | 2011-06-01 | Vega Grieshaber Kg | Adaptiver Fehlerzähler für ein drahtloses Feldgerät |
CN101350706B (zh) * | 2007-07-19 | 2011-02-23 | 展讯通信(上海)有限公司 | 坏帧标志及非可靠帧标志设置方法 |
US8046666B2 (en) * | 2007-08-08 | 2011-10-25 | Lsi Corporation | Combined DC restoration double detection and loops |
US8161357B2 (en) * | 2008-03-17 | 2012-04-17 | Agere Systems Inc. | Systems and methods for using intrinsic data for regenerating data from a defective medium |
US8429475B2 (en) * | 2009-02-27 | 2013-04-23 | Research In Motion Limited | State dependent advanced receiver processing in a wireless mobile device |
TWI400896B (zh) * | 2009-12-10 | 2013-07-01 | Univ Nat Central | Millimeter wave photoelectric switch launcher |
US20120300886A1 (en) * | 2011-05-27 | 2012-11-29 | Cristina Seibert | Methods for early termination of reception of a bit stream |
US10395541B2 (en) * | 2015-01-16 | 2019-08-27 | Texas Instruments Incorporated | Integrated fault-tolerant augmented area viewing system |
DE102015106201A1 (de) * | 2015-04-22 | 2016-10-27 | Intel IP Corporation | Schaltung, integrierte schaltung, empfänger, sendeempfänger und verfahren zum empfangen eines signals |
CN108447505B (zh) * | 2018-05-25 | 2019-11-05 | 百度在线网络技术(北京)有限公司 | 音频信号过零率处理方法、装置及语音识别设备 |
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JPH02299324A (ja) * | 1989-05-15 | 1990-12-11 | Mitsubishi Electric Corp | 音声符号化装置 |
JPH0828750B2 (ja) * | 1989-11-10 | 1996-03-21 | 富士通株式会社 | レシーバ回路における自動閾値制御方式 |
US5113400A (en) * | 1990-11-21 | 1992-05-12 | Motorola, Inc. | Error detection system |
US5321705A (en) * | 1990-11-21 | 1994-06-14 | Motorola, Inc. | Error detection system |
US5142551A (en) * | 1991-02-28 | 1992-08-25 | Motorola, Inc. | Signal weighting system for digital receiver |
SG47627A1 (en) * | 1991-06-03 | 1998-04-17 | British Telecomm | Radio system |
DE4118424A1 (de) * | 1991-06-05 | 1992-12-10 | Thomson Brandt Gmbh | Verfahren zur verarbeitung und wiedergabe empfangener digital codierter audio-daten und rundfunkempfaenger zum empfang von digital codierter ton-rundfunkdaten (dar) |
DE69231437T2 (de) * | 1991-12-26 | 2001-03-01 | Nec Corp., Tokio/Tokyo | System zur Steuerung der Sendeleistung mit Gewährleistung einer konstanten Signalqualität in einem Mobilkommunikationsnetzwerk |
WO1993022881A1 (en) * | 1992-04-24 | 1993-11-11 | Motorola Inc. | Method and apparatus for determining signal transmission quality levels of a transmitted signal |
US5331642A (en) * | 1992-09-01 | 1994-07-19 | International Business Machines Corporation | Management of FDDI physical link errors |
US5323421A (en) * | 1992-09-30 | 1994-06-21 | Motorola, Inc. | Method and apparatus of estimating channel quality in a receiver |
US5497383A (en) * | 1993-01-22 | 1996-03-05 | Motorola, Inc. | Error detector circuit for receiver operative to receive discretely-encoded signals |
US6092230A (en) * | 1993-09-15 | 2000-07-18 | Motorola, Inc. | Method and apparatus for detecting bad frames of information in a communication system |
FI94810C (fi) * | 1993-10-11 | 1995-10-25 | Nokia Mobile Phones Ltd | Menetelmä huonon GSM-puhekehyksen tunnistamiseksi |
FR2718306B1 (fr) * | 1994-03-31 | 1996-04-26 | Alcatel Mobile Comm France | Procédé d'adaptation de l'interface air, dans un système de radiocommunication vers des mobiles. |
FI944345A (fi) * | 1994-09-19 | 1996-03-20 | Nokia Telecommunications Oy | Menetelmä virheellisten puhekehysten tunnistamiseksi puhetta välittävän tietoliikennejärjestelmän vastaanottimessa, sekä tietoliikennejärjestelmän vastaanotin |
GB2305083B (en) * | 1995-09-07 | 2000-03-29 | Motorola Ltd | Method of bit error rate calculation and apparatus therefor |
-
1996
- 1996-04-15 US US08/632,701 patent/US5815507A/en not_active Expired - Lifetime
-
1997
- 1997-04-03 GB GB9706744A patent/GB2312359B/en not_active Expired - Fee Related
- 1997-04-08 FR FR9704263A patent/FR2748169B1/fr not_active Expired - Fee Related
- 1997-04-14 IT IT97RM000213A patent/IT1291877B1/it active IP Right Grant
- 1997-04-15 CN CN97103916A patent/CN1091980C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB9706744D0 (en) | 1997-05-21 |
GB2312359A (en) | 1997-10-22 |
US5815507A (en) | 1998-09-29 |
ITRM970213A1 (it) | 1998-10-14 |
GB2312359B (en) | 2000-07-12 |
CN1163515A (zh) | 1997-10-29 |
FR2748169A1 (fr) | 1997-10-31 |
FR2748169B1 (fr) | 2002-01-18 |
CN1091980C (zh) | 2002-10-02 |
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Legal Events
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