BRPI0409893A - sintonizador multicanal usando transformada cosseno discreta - Google Patents

sintonizador multicanal usando transformada cosseno discreta

Info

Publication number
BRPI0409893A
BRPI0409893A BRPI0409893-5A BRPI0409893A BRPI0409893A BR PI0409893 A BRPI0409893 A BR PI0409893A BR PI0409893 A BRPI0409893 A BR PI0409893A BR PI0409893 A BRPI0409893 A BR PI0409893A
Authority
BR
Brazil
Prior art keywords
signals
discrete cosine
transponder
tuner
cosine transform
Prior art date
Application number
BRPI0409893-5A
Other languages
English (en)
Inventor
David Lowell Mcneely
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0409893A publication Critical patent/BRPI0409893A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

"SINTONIZADOR MULTICANAL USANDO TRANSFORMADA COSSENO DISCRETA". Um receptor de satélite inclui um sintonizador multicanal para processar uma pluralidade de diferentes sinais do transponder para fornecer simultaneamente uma pluralidade de diferentes fluxos de bits de pelo menos dois sinais do transponder. O sintonizador multicanal inclui (a) um desmultiplexador para desmultiplexar um sinal recebido representando a pluralidade de sinais do transponder em uma pluralidade de sinais de amostras, cada sinal do transponder levando um fluxo de bits, (b) uma pluralidade de filtros bifurcados operantes na pluralidade de sinais de amostras para fornecer uma pluralidade de sinais filtrados, e (c) um elemento da transformada do cosseno discreta operante na pluralidade de sinais filtrados para fornecer simultaneamente pelo menos dois dos fluxos de bits.
BRPI0409893-5A 2003-05-02 2004-04-30 sintonizador multicanal usando transformada cosseno discreta BRPI0409893A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/428,614 US7054281B2 (en) 2003-05-02 2003-05-02 Multi-channel tuner using a discrete cosine transform
PCT/US2004/013585 WO2004100433A2 (en) 2003-05-02 2004-04-30 A multi-channel tuner using a discrete cosine transform

Publications (1)

Publication Number Publication Date
BRPI0409893A true BRPI0409893A (pt) 2006-05-23

Family

ID=33310451

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0409893-5A BRPI0409893A (pt) 2003-05-02 2004-04-30 sintonizador multicanal usando transformada cosseno discreta

Country Status (9)

Country Link
US (1) US7054281B2 (pt)
EP (1) EP1620963B1 (pt)
JP (1) JP4620047B2 (pt)
KR (1) KR20060003070A (pt)
CN (1) CN1820439A (pt)
BR (1) BRPI0409893A (pt)
MX (1) MXPA05011612A (pt)
MY (1) MY135792A (pt)
WO (1) WO2004100433A2 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7623580B2 (en) * 2003-06-30 2009-11-24 Nxp B.V. Simultaneous multiple channel receiver
US7419096B2 (en) * 2004-06-04 2008-09-02 Impinj, Inc. RFID joint acquisition of time sync and timebase
JP2006229510A (ja) * 2005-02-17 2006-08-31 Sharp Corp ディジタル衛星放送システム、送信局、受信機
US8005121B2 (en) * 2005-05-04 2011-08-23 Thomson Licensing Apparatus and method for re-synthesizing signals
CN101171756B (zh) * 2005-05-04 2013-01-02 汤姆森特许公司 用于接收多个信道的系统和方法
JP4402005B2 (ja) 2005-05-13 2010-01-20 株式会社ソニー・コンピュータエンタテインメント 受信装置
KR100749813B1 (ko) * 2005-07-25 2007-08-16 삼성전자주식회사 방송 수신/전송 디바이스, 무선 ａ／ｖ 시스템, 및 무선ａ／ｖ 시스템의 제어방법
US7916816B2 (en) * 2006-05-12 2011-03-29 Broadcom Corporation Hardware allocation in a multi-channel communication environment
US8086197B2 (en) * 2008-11-12 2011-12-27 Nxp B.V. Multi-channel receiver architecture and reception method
CA2825707A1 (en) * 2011-01-21 2012-07-26 Tommy Yu Systems and methods for selecting digital content channels using low noise block converters including digital channelizer switches
US9131265B2 (en) * 2011-05-19 2015-09-08 Maxlinear, Inc. Method and system for providing satellite television service to a premises
US8718474B2 (en) * 2011-05-27 2014-05-06 Nec Laboratories America, Inc. Chromatic dispersion compensation using sign operations and lookup tables

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2066851C (en) * 1991-06-13 1996-08-06 Edwin A. Kelley Multiple user digital receiver apparatus and method with combined multiple frequency channels
CA2066540C (en) * 1991-06-13 1998-01-20 Edwin A. Kelley Multiple user digital receiving apparatus and method with time division multiplexing
US5224062A (en) * 1992-03-17 1993-06-29 Sun Microsystems, Inc. Method and apparatus for fast implementation of inverse discrete cosine transform in a digital image processing system using optimized lookup tables
US5629736A (en) * 1994-11-01 1997-05-13 Lucent Technologies Inc. Coded domain picture composition for multimedia communications systems
JP3158932B2 (ja) * 1995-01-27 2001-04-23 日本ビクター株式会社 信号符号化装置及び信号復号化装置
US6473409B1 (en) * 1999-02-26 2002-10-29 Microsoft Corp. Adaptive filtering system and method for adaptively canceling echoes and reducing noise in digital signals
US6449244B1 (en) * 1999-05-10 2002-09-10 Trw Inc. Implementation of orthogonal narrowband channels in a digital demodulator
JP2002245027A (ja) * 2001-02-15 2002-08-30 Seiko Epson Corp フィルタリング処理方法およびフィルタリング処理装置
JP2005501490A (ja) * 2001-08-24 2005-01-13 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ビデオフレームのフィールドの加算
US6704372B2 (en) * 2001-09-18 2004-03-09 Broadlogic Network Technologies Inc. Digital implementation of multi-channel demodulators

Also Published As

Publication number Publication date
JP4620047B2 (ja) 2011-01-26
EP1620963A4 (en) 2011-09-21
EP1620963B1 (en) 2016-06-01
WO2004100433A3 (en) 2005-08-25
KR20060003070A (ko) 2006-01-09
MY135792A (en) 2008-06-30
WO2004100433A2 (en) 2004-11-18
MXPA05011612A (es) 2006-04-27
JP2007521719A (ja) 2007-08-02
EP1620963A2 (en) 2006-02-01
US20040218692A1 (en) 2004-11-04
US7054281B2 (en) 2006-05-30
CN1820439A (zh) 2006-08-16

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Legal Events

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B08L Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette]

Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 9A E 10A ANUIDADES.

B08I Publication cancelled [chapter 8.9 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2258 DE 15/04/2014 POR TER SIDO INDEVIDA.

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 9A, 10A, 11A, 12A, 13A, 14A, 15A E 16A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.