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    • 2. 发明申请
    • DATA TRANSMISSION NETWORK
    • 数据传输网络
    • WO2009066208A2
    • 2009-05-28
    • PCT/IB2008054758
    • 2008-11-13
    • KONINKL PHILIPS ELECTRONICS NVFILIPPI ALESSIOTOLHUIZEN LUDOVICUS M G MRIETMAN RONALD
    • FILIPPI ALESSIOTOLHUIZEN LUDOVICUS M G MRIETMAN RONALD
    • H04L1/06
    • H04L1/0668H04L1/0625
    • The present invention relates to a data transmission network, in particular a single frequency network (SFN), comprising a space-time block code (STBC) encoder for encoding user data of a user data stream into channel symbols of two or more channel data streams for transmission and a plurality of transmitters in a transmission area for transmitting said channel data streams using the same frequency channel for reception by one or more receivers located in said transmission area, wherein the number of transmitters is larger than the number of channel data streams and wherein each channel data stream is transmitted by at least one transmitter. To enable the deployment of STBCs in an SFN and a uniform gain in the coverage area of the SFN the data transmission network further comprises control means for controlling, which channel data stream is transmitted by which transmitter, such that all channel data streams are simultaneously transmitted, that at least two transmitters are transmitting the same channel data stream and that at least one transmitter is changing which channel data stream it transmits.
    • 本发明涉及一种数据传输网络,特别是一种单频网络(SFN),包括用于将用户数据流的用户数据编码成两个或多个信道数据流的信道符号的空时块码(STBC)编码器 用于传输的多个发射机和用于使用相同的频道发射所述信道数据流的多个发射机,用于由位于所述传输区域中的一个或多个接收机接收,其中发射机的数量大于信道数据流的数量, 其中每个信道数据流由至少一个发射机发送。 为了能够在SFN中部署STBC并且在SFN的覆盖区域中具有均匀的增益,数据传输网络还包括控制装置,用于控制哪个信道数据流由哪个发射机发送,使得所有信道数据流被同时传输 至少两个发射机正在发送相同的信道数据流,并且至少一个发射机正在改变其发射哪个信道数据流。
    • 10. 发明申请
    • ENCODING AND DECODING APPARATUS AND CORRESPONDING METHODS
    • 编码和解码设备及相关方法
    • WO2005119678A1
    • 2005-12-15
    • PCT/IB2005/051730
    • 2005-05-26
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.HEKSTRA, Andries, P.TOLHUIZEN, Ludovicus, M., G., M.
    • HEKSTRA, Andries, P.TOLHUIZEN, Ludovicus, M., G., M.
    • G11B20/14
    • G11B20/10009G11B20/00086G11B20/1426
    • The present invention relates to an encoding apparatus and method for encoding a user data stream (m) into a channel data stream (y) as well as to a corresponding decoding apparatus and method. To improve the worst case BER behavior of storage systems and increase reliability, in particular which ensure a low BER without a large loss of information rate, particularly in two-dimensional optical storage systems or in communication systems, an encoding apparatus is proposed according to the invention which comprises: an expansion unit for transforming said user data stream (m) to an intermediate data stream (i) comprising at least one more symbol than said user data stream (m), a processing unit (100, 200, 500, 600) for iteratively determining for each scrambling stream (c) from a scrambling code (C) the value (v) of a figure of merit for the scrambling stream (c) using said intermediate data stream (i), a selection unit (300) for selecting an optimum merit value (v_opt) from said merit values (v) and for selecting an optimum scrambling stream (ç opt) for which the figure of merit equals said optimum merit value (v_opt), and at least one mapping unit (400) for mapping the symbols of said optimum scrambling stream (ç opt) onto the corresponding symbols of said intermediate data stream (i) to obtain said channel data stream (y) for output to a channel.
    • 本发明涉及一种用于将用户数据流(m)编码成信道数据流(y)的编码装置和方法,以及相应的解码装置和方法。 为了改善存储系统的最差情况BER行为并提高可靠性,特别是确保低BER而不会大量信息丢失的损失,特别是在二维光学存储系统或通信系统中,提出了一种编码装置 包括:扩展单元,用于将所述用户数据流(m)变换为包括比所述用户数据流(m)至少一个符号的中间数据流(i);处理单元(100,200,500,600,600 ),用于使用所述中间数据流(i)从扰码(C)迭代确定用于加扰流(c)的品质因数值(v)的每个加扰流(c),选择单元(300) 用于从所述优值(v)中选择最佳优值(v_opt),并且用于选择品质因数等于所述最优优值(v_opt)的最佳加扰流(çopt)以及至少一个映射单元(400 )用于映射symbo 将所述最佳加扰流(çopt)的ls加到所述中间数据流(i)的相应符号上,以获得用于输出到信道的所述信道数据流(y)。