公开(公告)号：EP1615441A1

公开(公告)日：2006-01-11

申请号：EP04015819.8

申请日：2004-07-06

Applicant: STMicroelectronics S.r.l.

Inventor： Vitali, Andrea Lorenzo ,  Olivieri, Stefano

IPC: H04N7/26 ,  H04N7/64

CPC classification number: H04N19/67 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/37 ,  H04N19/39 ,  H04N19/48 ,  H04N19/59 ,  H04N19/61

Abstract: A system and method for encoding digital signals (S) for transmission over a channel by allocating redundant channel encoding bits, includes at least one encoder (F';F'';SE) configured for:

subjecting the digital signals (S) to multiple description coding (MDC) to produce therefrom multiple description encoded signals (A to E), and
allocating at least part of the redundant channel encoding bits to the multiple description encoded signals (A to E).

Balanced multiple description coding and unbalanced multiple description coding is used, as well as cascading techniques and unequal channel encoding.

Abstract translation: 一种用于编码用于通过分配冗余信道编码比特在信道上传输的数字信号（S）的系统和方法，包括至少一个编码器（F'; F“; SE），其被配置为：对数字信号（S）进行多次 描述编码（MDC），从而产生多个描述编码信号（A至E），并将至少部分冗余信道编码比特分配给多个描述编码信号（A至E）。 使用平衡多描述编码和不平衡多描述编码，以及级联技术和不等信道编码。

公开(公告)号：EP1603339A1

公开(公告)日：2005-12-07

申请号：EP04012878.7

申请日：2004-06-01

Applicant: STMicroelectronics S.r.l.

Inventor： Melpignano, Diego ,  Olivieri, Stefano

IPC: H04N7/24 ,  H04L1/00 ,  H04N7/26 ,  H04N7/36 ,  H04N7/64

CPC classification number: H04N21/44245 ,  H04L1/0014 ,  H04L1/0026 ,  H04L1/0083 ,  H04L1/16 ,  H04N19/174 ,  H04N19/503 ,  H04N19/89 ,  H04N21/2343 ,  H04N21/2402 ,  H04N21/44209 ,  H04N21/6437 ,  H04N21/8451

Abstract: A method for communicating video data on a wireless channel in a packet-switched network, that includes the steps.of operating at a wireless terminal (100) a compression (10; 204) in packets (106, 108) on the video data during a video coding operation, detecting wireless channel conditions and adapting control parameters of the video coding operation to the detected wireless channel conditions. The compression operation is a robust header compression operation (204) and the step of adapting control parameters of said video coding operation is performed in dependence of information (200, 210, 110) about the wireless channel conditions detected on a feedback channel made available in a decompression step (202) associated to the compression operation (204).
Preferred application in mobile phones and video over IP applications.

Abstract translation: 一种用于在分组交换网络中的无线通信的信道的视频数据的方法，做了包括steps.of在无线终端（100）的压缩（10; 204）在运行阶段上的视频数据到数据包（106，108） 视频编码手术，检测无线信道条件并调整视频编码手术的控制参数，以所检测到的无线信道状况。 压缩手术是一种稳健报头压缩手术（204）和调整所述视频编码手术的控制参数的步骤中的信息而被执行（200，210，110）有关的反馈信道检测到的无线信道状况可用在 关联到压缩手术（204）的解压缩步骤（202）。 在移动电话和IP视频应用优选的应用。