AR017522A1 - Un receptor de senales de television digital (dtv) - Google Patents

Un receptor de senales de television digital (dtv)

Info

Publication number
AR017522A1
AR017522A1 ARP980105362A ARP980105362A AR017522A1 AR 017522 A1 AR017522 A1 AR 017522A1 AR P980105362 A ARP980105362 A AR P980105362A AR P980105362 A ARP980105362 A AR P980105362A AR 017522 A1 AR017522 A1 AR 017522A1
Authority
AR
Argentina
Prior art keywords
signal
qam
vsb
dtv
final
Prior art date
Application number
ARP980105362A
Other languages
English (en)
Original Assignee
Samsung Electronics Co Ltd
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
Priority claimed from US09/021,946 external-priority patent/US5966188A/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of AR017522A1 publication Critical patent/AR017522A1/es

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382Demodulation or channel decoding, e.g. QPSK demodulation
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/373Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35 with erasure correction and erasure determination, e.g. for packet loss recovery or setting of erasures for the decoding of Reed-Solomon codes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/65Purpose and implementation aspects
    • H03M13/6502Reduction of hardware complexity or efficient processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

Un radioreceptor que utiliza el mismo sintonizador para recibir una senal de television digital (DTV) seleccionada, independientemente de que se trate unasenal de amplitud modulada en cuadratura (QAM) o de banda lateral residual (VSB); la senal IF final se digitaliza a una velocidad que es un multiplo de lasfrecuencias de símbolos tanto de la senal de QAM, como de la senal VSB para sincronizar respecto de la banda base. Las frecuencias portadoras IF finales QAM yVSB se regulan para que sean submultiplos del multiplo de ambas frecuencias de símbolos de las senales QAM y VSB, aplicando las senales de control automáticode frecuencia y fase (AFPC) desarrolladas en los circuitos digitalesde un oscilador local del sintonizador. Las senales de DTVde banda base obtenidas mediantela sincronizacion de las senales IF finales tienen una velocidad de muestras superior a la velocidad de símbolos para facilitar la sintonizacion de lossímbolos. Las senales de DTV de banda base correspondientes a la velocidad de símbolos se convierten a decimal antes de realizarse la ecualizacion de canales,a fin de reducir la cantidad de multiplicadores requeridos en el filtro de ecualizacion de canales.
ARP980105362A 1998-02-11 1998-10-27 Un receptor de senales de television digital (dtv) AR017522A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/021,946 US5966188A (en) 1996-12-26 1998-02-11 Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers

Publications (1)

Publication Number Publication Date
AR017522A1 true AR017522A1 (es) 2001-09-12

Family

ID=21807004

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980105362A AR017522A1 (es) 1998-02-11 1998-10-27 Un receptor de senales de television digital (dtv)

Country Status (8)

Country Link
JP (1) JPH11284932A (es)
KR (1) KR100276772B1 (es)
CN (1) CN1226117A (es)
AR (1) AR017522A1 (es)
AU (1) AU720014B2 (es)
BR (1) BR9803857A (es)
CA (1) CA2249035A1 (es)
SG (1) SG85096A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06508805A (ja) * 1991-08-05 1994-10-06 ザ、ブロクター、エンド、ギャンブル、カンパニー 差込み式ハンドル
KR100353861B1 (ko) * 1999-11-11 2002-09-26 한국전자통신연구원 주파수 매핑 근사 함수를 이용한 광대역 주파수 자동 채널선택 장치 및 그 방법
US8059711B2 (en) * 2003-01-28 2011-11-15 Thomson Licensing Robust mode staggercasting
US7502411B2 (en) * 2004-03-05 2009-03-10 Silicon Image, Inc. Method and circuit for adaptive equalization of multiple signals in response to a control signal generated from one of the equalized signals
DE102004054893A1 (de) * 2004-11-12 2006-05-24 Micronas Gmbh Verfahren und Schaltungsanordnung zur Kanalfilterung analog oder digital modulierter TV-Signale
JP4674103B2 (ja) * 2005-03-15 2011-04-20 富士通セミコンダクター株式会社 受信装置及び受信信号の処理方法
CN104284058A (zh) * 2013-07-09 2015-01-14 晨星半导体股份有限公司 滤波系统、滤波方法、电视信号接收器以及接收方法
US11885874B2 (en) * 2018-12-19 2024-01-30 Semiconductor Components Industries, Llc Acoustic distance measuring circuit and method for low frequency modulated (LFM) chirp signals
KR20210034997A (ko) * 2019-09-23 2021-03-31 에스케이하이닉스 주식회사 반도체장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5648987A (en) * 1994-03-24 1997-07-15 Samsung Electronics Co., Ltd. Rapid-update adaptive channel-equalization filtering for digital radio receivers, such as HDTV receivers
US5715012A (en) * 1996-03-13 1998-02-03 Samsung Electronics Co., Ltd. Radio receivers for receiving both VSB and QAM digital HDTV signals
KR960020485A (ko) * 1994-11-14 1996-06-17 이헌조 에이치디티브이(hdtv) 수신장치
US5852477A (en) * 1997-06-25 1998-12-22 Samsung Electronics Co., Ltd. Digital TV receivers with poly-phase analog-to-digital conversion of baseband symbol coding

Also Published As

Publication number Publication date
KR100276772B1 (ko) 2001-01-15
BR9803857A (pt) 1999-12-14
JPH11284932A (ja) 1999-10-15
CA2249035A1 (en) 1999-08-11
AU8712198A (en) 1999-08-26
AU720014B2 (en) 2000-05-18
KR19990071401A (ko) 1999-09-27
SG85096A1 (en) 2001-12-19
CN1226117A (zh) 1999-08-18

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