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    • 122. 发明授权
    • System and method for deinterleaving digital data
    • 用于解交织数字数据的系统和方法
    • US5566183A
    • 1996-10-15
    • US348424
    • 1994-12-02
    • Andrzej F. Partyka
    • Andrzej F. Partyka
    • H04L1/00H03M13/23H03M13/27H03M13/41H04Q7/38G06F11/00
    • H03M13/2764
    • A deinterleaver for reordering elements of an interleaved digital data sequence (data packet) to obtain an original digital data sequence. The deinterleaver is used in a mobile station operating in a mobile communication system. The interleaved digital data sequence is previously generated by interleaving elements of an original digital data sequence such that digital data elements located in successive positions of the original digital data sequence are located in positions separated by one or more intervening digital data elements in the interleaved digital data sequence. The deinterleaver comprises a data buffer for storing the interleaved digital data sequence; a decoder to generate a first address of a desired data element of the interleaved digital data sequence, the first address corresponding to a position of the desired data element in the original digital data sequence; and an address twister to translate the first address to a second address corresponding to a position of the desired data element in the interleaved digital data sequence; wherein the data buffer is accessed according to the second address to retrieve the desired data element of the original digital data sequence.
    • 一种去交织器,用于对交织的数字数据序列(数据分组)的元素重新排序以获得原始数字数据序列。 解交织器用于在移动通信系统中操作的移动台中。 先前通过交织原始数字数据序列的元素来产生交错的数字数据序列,使得位于原始数字数据序列的连续位置的数字数据元素位于由交织数字数据中的一个或多个中间数字数据元素隔开的位置 序列。 解交织器包括用于存储交织的数字数据序列的数据缓冲器; 解码器,用于生成所述交错数字数据序列的所需数据元素的第一地址,所述第一地址对应于所述原始数字数据序列中期望数据元素的位置; 以及地址扭转器,用于将所述第一地址转换为与所述交织的数字数据序列中的期望数据元素的位置相对应的第二地址; 其中根据第二地址访问数据缓冲器以检索原始数字数据序列的期望数据元素。
    • 127. 发明授权
    • De-interleaving mechanism involving a multi-banked LLR buffer
    • 涉及多段LLR缓冲器的解交织机制
    • US08572332B2
    • 2013-10-29
    • US12404613
    • 2009-03-16
    • Ali RostamPishehRaghu N. ChallaIwen YaoDavie J. SantosMrinal M. Nath
    • Ali RostamPishehRaghu N. ChallaIwen YaoDavie J. SantosMrinal M. Nath
    • G06F12/00
    • H03M13/2785H03M13/2764H03M13/2771H03M13/2775H03M13/6566
    • A de-interleaver generates a plurality of De-interleaved Reorder Physical (DRP) addresses to simultaneously write a corresponding plurality of LLR values into a multi-banked memory such that not more than one LLR value is written into each bank of the multi-banked memory at a time. A sequence of such parallel writes results in the LLR values of a transmission of a sub-packet being stored in the memory. Address translation performed during generation of the DRP addresses causes the LLR values to be stored within the banks such that a decoder can read LLR values out of the memory in a de-interleaved sequence. Each memory location of a bank is a word-location for storing multiple related LLR values, where one LLR value is stored along with its parity values. The ability to simultaneously write to multiple LLR values is used to clear locations in a fast and efficient manner.
    • 解交织器产生多个解交织重排物理(DRP)地址,以将对应的多个LLR值同时写入多存储存储器,使得不多于一个LLR值被写入多存储体的每个存储体 一次记忆 这种并行写入的序列导致存储在存储器中的子包的传输的LLR值。 在生成DRP地址期间执行的地址转换导致LLR值被存储在存储体中,使得解码器可以以解交织的顺序读出存储器中的LLR值。 存储体的每个存储器位置是用于存储多个相关LLR值的字位置,其中一个LLR值与其奇偶校验值一起存储。 用于同时写入多个LLR值的能力用于以快速有效的方式清除位置。
    • 129. 发明授权
    • Odd-even interleaving while changing the operating mode in a digital video broadcasting (DVB) standard
    • 在数字视频广播(DVB)标准中改变操作模式时,奇偶交织
    • US08175142B2
    • 2012-05-08
    • US12435657
    • 2009-05-05
    • Samuel Asanbeng AtungsiriMatthew Paul Athol Taylor
    • Samuel Asanbeng AtungsiriMatthew Paul Athol Taylor
    • H03H7/30
    • H04L27/2602H03M13/2742H03M13/2764H04L1/0071H04L27/2647H04N21/6112
    • A data processing apparatus to map input data symbols to be communicated onto a predetermined number of sub-carrier signals of Orthogonal Frequency Division Multiplexed OFDM symbols. The predetermined number of sub-carrier signals is determined in accordance with one of a plurality of operating modes and the input data symbols include first sets of data symbols and second sets of input data symbols. The data processing apparatus includes a controller, an address generator, and an interleaver memory. The controller is configured, when operating in accordance with an even interleaving process, to read out a first set of the input data symbols from the interleaver memory on to the sub-carrier signals of an even OFDM symbol using read addresses generated by the address generator, and to write in a second set of the input data symbols into the interleaver memory using the addresses generated by the address generator.
    • 一种数据处理装置,用于将要传送的输入数据符号映射到正交频分复用OFDM符号的预定数量的副载波信号。 根据多种操作模式中的一种确定预定数量的副载波信号,并且输入数据符号包括第一组数据符号和第二组输入数据符号。 数据处理装置包括控制器,地址发生器和交织器存储器。 当根据偶数交织处理操作时,控制器被配置为使用由地址生成器生成的读取地址从交织器存储器读出第一组输入数据符号到偶数OFDM符号的副载波信号 并且使用由地址生成器生成的地址将第二组输入数据符号写入交织器存储器。
    • 130. 发明授权
    • Parallel pruned bit-reversal interleaver
    • 并行修剪的位反转交织器
    • US08127105B2
    • 2012-02-28
    • US12264880
    • 2008-11-04
    • Mohamad Mansour
    • Mohamad Mansour
    • G06F12/00
    • H03M13/2764H03M13/276
    • A parallel lookahead pruned bit-reversal interleaver algorithm and architecture have been proposed. The algorithm interleaves a packet of length N in at most log(N)−1 steps compared to N steps using existing sequential algorithms, and has a simple architecture amenable for high-speed applications. The proposed algorithm is valuable for emerging wireless standards especially those that employ PBRI channel (de-)interleavers on long packets in reducing interleaving latency on the transmitter side and deinterleaving latency on the receiver side.
    • 已经提出了并行的前瞻性修剪的位反转交织器算法和架构。 该算法使用现有的顺序算法,与N个步骤相比,以最多log(N)-1个步长交织长度为N的数据包,并且具有适用于高速应用的简单架构。 所提出的算法对于新兴的无线标准是有价值的,特别是那些在长分组上采用PBRI信道(去)交织器来减少发送机侧的交织等待时间并在接收机侧解交织等待时间的算法。