中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.025 seconds)

    5.
    发明专利
    未知

    公开(公告)号：BRPI0414065A

    公开(公告)日：2006-10-24

    申请号：BRPI0414065

    申请日：2004-09-02

    Applicant: QUALCOMM INC

    Inventor： VIJAYAN RAJIV ,  KHANDEKAR AAMOD ,  LING FUYUN ,  WALKER KENT ,  MURALI RAMASWAMY

    IPC: H04H20/00 ,  H04J3/24 ,  H04L1/00 ,  H04L5/02 ,  H04L5/06 ,  H04L25/02 ,  H04L27/26 ,  H04W4/06 ,  H04W28/06 ,  H04W72/04 ,  H04J11/00 ,  H04Q7/00 ,  H04B7/00 ,  H04L12/28

    Abstract: Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.

    MULTIPLEXION Y TRANSMISION DE MULTIPLES CORRIENTES DE DATOS EN UN SISTEMA DE COMUNICACION INALAMBRICO DE PORTADORA MULTIPLE.
    6.
    发明专利
    MULTIPLEXION Y TRANSMISION DE MULTIPLES CORRIENTES DE DATOS EN UN SISTEMA DE COMUNICACION INALAMBRICO DE PORTADORA MULTIPLE. 未知

    公开(公告)号：MXPA06002405A

    公开(公告)日：2006-06-20

    申请号：MXPA06002405

    申请日：2004-09-02

    Applicant: QUALCOMM INC

    Inventor： WALKER KENT

    IPC: H04H20/00 ,  H04J3/24 ,  H04L20060101 ,  H04L1/00 ,  H04L5/02 ,  H04L5/06 ,  H04L25/02 ,  H04L27/26 ,  H04W4/06 ,  H04W28/06 ,  H04W72/04 ,  H04L00/00

    Abstract: Se describen tecnicas para multiplexar y transmitir multiples corrientes de datos; la transmision de las multiples corrientes de datos ocurre en "super-tramas"; cada super-trama tiene una duracion de tiempo predeterminada y ademas esta dividida en multiples (por ejemplo, cuatro) tramas; cada bloque de datos para cada corriente de datos es codificado en el exterior para generar un bloque de codigo correspondiente; cada bloque de codigo es dividido en multiples sub-bloques, y cada paquete de datos en cada bloque de codigo es codificado en el interior y modulado para generar simbolos de modulacion para el paquete; los multiples sub-bloques para cada bloque de codigo son transmitidos en las multiples tramas de la misma super-trama, un sub-bloque por trama; a cada corriente de datos se le asigna un numero de unidades de transmision en cada super-trama y se le asignan unidades de transmision especifica para lograr un empaque eficiente; un dispositivo inalambrico puede seleccionar y recibir corrientes de datos individuales.

    CONTENT-ADAPTIVE MULTIMEDIA CODING AND PHYSICAL LAYER MODULATION
    10.
    发明申请
    CONTENT-ADAPTIVE MULTIMEDIA CODING AND PHYSICAL LAYER MODULATION 审中-公开
    内容适应性多媒体编码和物理层调制

    公开(公告)号：WO2008027815A3

    公开(公告)日：2008-05-08

    申请号：PCT/US2007076845

    申请日：2007-08-27

    Applicant: QUALCOMM INC ,  WALKER KENT ,  LING FUYUN ,  RAVEENDRAN VIJI

    Inventor： WALKER KENT ,  LING FUYUN ,  RAVEENDRAN VIJI

    IPC: H04L1/00 ,  H04L29/08 ,  H04N7/26

    CPC classification number: H04L1/00 ,  H04N19/12 ,  H04N19/136 ,  H04N19/179

    Abstract: This disclosure describes content-adaptive coding and modulation techniques. In particular, this disclosure describes techniques in which both a multimedia coding mode and a physical layer modulation scheme are adaptively selected based on content of a multimedia sequence. When the content changes such that either the coding or the modulation scheme can be improved, the coding and/or modulation may be changed to better optimize to the changed content. In one aspect, this disclosure provides a method of processing multimedia data, the method comprising selecting a multimedia coding mode for an encoder to encode the multimedia data and a physical layer modulation scheme for transmission of the multimedia data based on content of the multimedia data.

    Abstract translation: 本公开描述了内容自适应编码和调制技术。 特别地，本公开描述了其中基于多媒体序列的内容自适应地选择多媒体编码模式和物理层调制方案的技术。 当内容改变使得可以改进编码或调制方案时，可以改变编码和/或调制以更好地优化改变的内容。 在一个方面，本公开提供了一种处理多媒体数据的方法，该方法包括为编码器选择多媒体编码模式以对多媒体数据进行编码，并且基于多媒体数据的内容选择用于传输多媒体数据的物理层调制方案。

Patent Agency Ranking