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
Links
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- 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
- H03M13/373—Decoding 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
-
- 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
- H03M13/65—Purpose and implementation aspects
- H03M13/6502—Reduction 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.
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)
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)
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 |
-
1998
- 1998-09-04 SG SG9803424A patent/SG85096A1/en unknown
- 1998-09-26 KR KR1019980040162A patent/KR100276772B1/ko not_active IP Right Cessation
- 1998-09-29 CN CN98120772A patent/CN1226117A/zh active Pending
- 1998-09-29 CA CA002249035A patent/CA2249035A1/en not_active Abandoned
- 1998-09-30 AU AU87121/98A patent/AU720014B2/en not_active Ceased
- 1998-09-30 BR BR9803857-5A patent/BR9803857A/pt not_active IP Right Cessation
- 1998-09-30 JP JP10278812A patent/JPH11284932A/ja active Pending
- 1998-10-27 AR ARP980105362A patent/AR017522A1/es unknown
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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