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ES2088716A1 - Sistema de deteccion de errores ean la recepcion de se¦ales codificadas transmitidas por radiofrecuencia. - Google Patents

Sistema de deteccion de errores ean la recepcion de se¦ales codificadas transmitidas por radiofrecuencia.

Info

Publication number
ES2088716A1
ES2088716A1 ES09250034A ES9250034A ES2088716A1 ES 2088716 A1 ES2088716 A1 ES 2088716A1 ES 09250034 A ES09250034 A ES 09250034A ES 9250034 A ES9250034 A ES 9250034A ES 2088716 A1 ES2088716 A1 ES 2088716A1
Authority
ES
Spain
Prior art keywords
signal
detection system
error detection
encoded
decoded
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.)
Granted
Application number
ES09250034A
Other languages
English (en)
Other versions
ES2088716B1 (es
Inventor
Adam F Gould
Phillip D Rasky
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of ES2088716A1 publication Critical patent/ES2088716A1/es
Application granted granted Critical
Publication of ES2088716B1 publication Critical patent/ES2088716B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block 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
    • H03M13/37—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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated 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
    • H04L1/20—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
    • H04L1/201—Frame classification, e.g. bad, good or erased
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Radio Transmission System (AREA)

Abstract

SISTEMA DE DETECCION DE ERRORES EN LA RECEPCION DE SEÑALES CODIFICADAS TRANSMITIDAS POR RADIOFRECUENCIA, QUE INDICA BLOQUES ERRONEOS DE SEÑALES BINARIAS DE INFORMACION QUE CONTIENEN BITS DEFORMADOS EN DENSIDADES TAN GRANDES QUE HACEN QUE UN DECODIFICADOR CONVOLUCIONAL GENERE UNA SEÑAL DECODIFICADA, INCORRECTA. UNA SEÑAL DECODIFICADA POR UN DECODIFICADOR CONVOLUCIONAL SE RECODIFICA MEDIANTE UN CODIFICADOR Y LA SEÑAL RECODIFICADA SE COMPARA CON LA SEÑAL RECIBIDA POR EL RECEPTOR. CUANDO PORCIONES DE LA SEÑAL RECODIFICADA DIFIEREN DEMASIADO DE LA SEÑAL REAL RECIBIDA SE GENERA UNA INDICACION DE BLOQUE ERRONEO.
ES09250034A 1990-11-21 1991-09-03 Sistema de deteccion de errores ean la recepcion de se¦ales codificadas transmitidas por radiofrecuencia. Expired - Fee Related ES2088716B1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/616,517 US5113400A (en) 1990-11-21 1990-11-21 Error detection system

Publications (2)

Publication Number Publication Date
ES2088716A1 true ES2088716A1 (es) 1996-08-16
ES2088716B1 ES2088716B1 (es) 1997-05-01

Family

ID=24469816

Family Applications (1)

Application Number Title Priority Date Filing Date
ES09250034A Expired - Fee Related ES2088716B1 (es) 1990-11-21 1991-09-03 Sistema de deteccion de errores ean la recepcion de se¦ales codificadas transmitidas por radiofrecuencia.

Country Status (13)

Country Link
US (1) US5113400A (es)
JP (1) JP2608005B2 (es)
AU (1) AU635865B2 (es)
CA (1) CA2070997C (es)
DE (2) DE4192982T (es)
DK (1) DK175993B1 (es)
ES (1) ES2088716B1 (es)
FR (1) FR2669794B1 (es)
GB (2) GB2255882B (es)
HK (1) HK1000355A1 (es)
IT (1) IT1249480B (es)
MX (1) MX9102156A (es)
WO (1) WO1992009953A1 (es)

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US5469452A (en) * 1991-09-27 1995-11-21 Qualcomm Incorporated Viterbi decoder bit efficient chainback memory method and decoder incorporating same
SE470372B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Metod jämte anordning att uppskatta kvaliten vid ramfelsdetektering i mottagaren hos ett radiokommunikationssystem
US5255343A (en) * 1992-06-26 1993-10-19 Northern Telecom Limited Method for detecting and masking bad frames in coded speech signals
US5497383A (en) * 1993-01-22 1996-03-05 Motorola, Inc. Error detector circuit for receiver operative to receive discretely-encoded signals
US5428631A (en) * 1993-02-01 1995-06-27 Qualcomm Incorporated Method and apparatus for resolving phase ambiguities in trellis coded modulated data
US5633881A (en) * 1993-02-22 1997-05-27 Qualcomm Incorporated Trellis encoder and decoder based upon punctured rate 1/2 convolutional codes
US5844922A (en) * 1993-02-22 1998-12-01 Qualcomm Incorporated High rate trellis coding and decoding method and apparatus
US5566206A (en) * 1993-06-18 1996-10-15 Qualcomm Incorporated Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver
CA2131674A1 (en) * 1993-09-10 1995-03-11 Kalyan Ganesan High performance error control coding in channel encoders and decoders
US6092230A (en) * 1993-09-15 2000-07-18 Motorola, Inc. Method and apparatus for detecting bad frames of information in a communication system
AUPM451394A0 (en) * 1994-03-16 1994-04-14 Telstra Corporation Limited A method and apparatus for measuring digital radio interference
AU679351B2 (en) * 1994-03-16 1997-06-26 Telstra Corporation Limited A method and apparatus for measuring digital radio interference
US5774496A (en) * 1994-04-26 1998-06-30 Qualcomm Incorporated Method and apparatus for determining data rate of transmitted variable rate data in a communications receiver
SE504396C2 (sv) * 1994-04-28 1997-01-27 Ericsson Telefon Ab L M Detektering av felaktigt mottagna dataramar i ett kommunikationssystem
US6004028A (en) * 1994-08-18 1999-12-21 Ericsson Ge Mobile Communications Inc. Device and method for receiving and reconstructing signals with improved perceived signal quality
JPH0877726A (ja) * 1994-09-06 1996-03-22 Hitachi Ltd ディジタル信号処理装置、誤り検出方法および記録媒体再生装置
JPH08329619A (ja) * 1994-10-27 1996-12-13 Hitachi Ltd データ再生方法、データ再生装置、およびデータ再生用回路
US5768291A (en) * 1994-12-29 1998-06-16 Motorola, Inc. Method and apparatus for error mitigating a received communication signal
US5615412A (en) * 1995-07-31 1997-03-25 Motorola, Inc. Digital squelch tail system and method for same
GB2305083B (en) * 1995-09-07 2000-03-29 Motorola Ltd Method of bit error rate calculation and apparatus therefor
US5844947A (en) * 1995-12-28 1998-12-01 Lucent Technologies Inc. Viterbi decoder with reduced metric computation
US5815507A (en) * 1996-04-15 1998-09-29 Motorola, Inc. Error detector circuit for digital receiver using variable threshold based on signal quality
AU716341B2 (en) * 1996-06-12 2000-02-24 Au Optronics Corporation Monitoring system of multimedia communication terminal
US5996103A (en) * 1996-07-31 1999-11-30 Samsung Information Systems America Apparatus and method for correcting errors in a communication system
US5864799A (en) * 1996-08-08 1999-01-26 Motorola Inc. Apparatus and method for generating noise in a digital receiver
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
JP2001501790A (ja) * 1996-09-25 2001-02-06 クゥアルコム・インコーポレイテッド 復号された音声パラメータを用いる移動電話で受信された不良データパケットの検出を行う方法およびその装置
DE19647314A1 (de) * 1996-11-13 1998-05-14 Siemens Ag Verfahren zum Erkennen von Fehlern bei der Datenübertragung
US5926489A (en) * 1996-11-22 1999-07-20 Lsi Logic Corporation Non-equalized digital receiver using block decoding with erasure and error correction
US6963589B1 (en) * 1997-07-03 2005-11-08 Canon Kabushiki Kaisha Information processing apparatus for and method of transmitting and/or receiving broadcast signal
JPH1168584A (ja) * 1997-08-11 1999-03-09 Mitsubishi Electric Corp ビタビ復号装置、ビタビ復号装置における畳み込み符号の入力タイミング制御方法及び入力タイミング制御装置
US6084926A (en) * 1997-12-08 2000-07-04 Ericsson Inc. Method and system for demodulating radio signals
US6850883B1 (en) * 1998-02-09 2005-02-01 Nokia Networks Oy Decoding method, speech coding processing unit and a network element
FI108825B (fi) * 1998-03-16 2002-03-28 Nokia Corp Menetelmä estimoida kanavan bittivirhesuhde ja vastaanotin
KR100586871B1 (ko) 1998-09-18 2006-06-07 코닌클리케 필립스 일렉트로닉스 엔.브이. 부분 응답 최대 가능성(피.알.엠.엘.) 비트 검출기를 위한진폭 레벨의 발생
US6298084B1 (en) * 1998-11-24 2001-10-02 Motorola, Inc. Bad frame detector and turbo decoder
US6208699B1 (en) 1999-09-01 2001-03-27 Qualcomm Incorporated Method and apparatus for detecting zero rate frames in a communications system
JP3881157B2 (ja) * 2000-05-23 2007-02-14 株式会社エヌ・ティ・ティ・ドコモ 音声処理方法及び音声処理装置
EP1204232A1 (en) * 2000-11-06 2002-05-08 Lucent Technologies Inc. Detection of uncorrectable data blocks in coded communications systems
US7533320B2 (en) * 2000-11-14 2009-05-12 Interdigital Technology Corporation Wireless transmit/receive unit having a turbo decoder with circular redundancy code signature comparison and method
US7263143B1 (en) * 2001-05-07 2007-08-28 Adaptix, Inc. System and method for statistically directing automatic gain control
DE10226902B4 (de) * 2002-06-17 2008-11-06 Westenweller, Alex Verfahren und Vorrichtung zum Erkennen von schlechten oder unzuverlässigen Codewortblöcken
US7840884B2 (en) * 2003-12-23 2010-11-23 Telefonaktiebolaget L M Ericsson (Publ) Turbo decoding with iterative estimation of channel parameters
US20050141651A1 (en) * 2003-12-30 2005-06-30 Jiayi Zhuang Method and system for modifying branch metric of Viterbi decoder for uncorrelated signals

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US4633470A (en) * 1983-09-27 1986-12-30 Cyclotomics, Inc. Error correction for algebraic block codes
US4843607A (en) * 1987-12-17 1989-06-27 Cyclotomics, Inc. Multiple error trapping
GB2216753A (en) * 1988-03-03 1989-10-11 Mitsubishi Electric Corp Communication system with concatenated coding error correction
US4914660A (en) * 1988-04-08 1990-04-03 Sanyo Electric Co., Ltd. Method and apparatus for decoding error correcting code
US4967413A (en) * 1986-07-26 1990-10-30 Nec Corporation Burst signal detection apparatus

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JPS6386620A (ja) * 1986-09-30 1988-04-18 Canon Inc デコ−ダの動作誤り検出装置
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Patent Citations (5)

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US4633470A (en) * 1983-09-27 1986-12-30 Cyclotomics, Inc. Error correction for algebraic block codes
US4967413A (en) * 1986-07-26 1990-10-30 Nec Corporation Burst signal detection apparatus
US4843607A (en) * 1987-12-17 1989-06-27 Cyclotomics, Inc. Multiple error trapping
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Also Published As

Publication number Publication date
FR2669794B1 (fr) 1994-01-14
ES2088716B1 (es) 1997-05-01
GB2285202B (en) 1995-08-30
CA2070997C (en) 1996-12-31
GB2255882A (en) 1992-11-18
DK86092D0 (da) 1992-06-30
DE4192982T (es) 1992-12-10
US5113400A (en) 1992-05-12
ITRM910877A0 (it) 1991-11-20
ITRM910877A1 (it) 1993-05-20
GB9506238D0 (en) 1995-05-17
MX9102156A (es) 1992-07-08
FR2669794A1 (fr) 1992-05-29
DK175993B1 (da) 2005-11-07
DK86092A (da) 1992-06-30
GB9215424D0 (en) 1992-09-16
GB2255882B (en) 1995-07-19
AU635865B2 (en) 1993-04-01
JPH05503825A (ja) 1993-06-17
GB2285202A (en) 1995-06-28
HK1000355A1 (en) 1998-03-06
JP2608005B2 (ja) 1997-05-07
WO1992009953A1 (en) 1992-06-11
AU8514791A (en) 1992-06-25
IT1249480B (it) 1995-02-23
DE4192982C2 (de) 1994-05-26

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