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    • 1. 发明申请
    • DEINTERLEAVER FOR A MULTI-STAGE INTERLEAVING SCHEME WITH PROCESSING OF BIT PAIRS
    • 用于处理位对的多级交互方案的消除器
    • WO2008032261A3
    • 2008-05-22
    • PCT/IB2007053643
    • 2007-09-10
    • NXP BVPU TIANYANSAWITZKI SERGEI V
    • PU TIANYANSAWITZKI SERGEI V
    • H03M13/27
    • H03M13/2796H03M13/271H03M13/276
    • A deinterleaver (10) for a wireless communication device is provided that is simple and inexpensive to implement. In particular, a deinterleaver for deinterleaving a stream of data bits representing a plurality of symbols that have been interleaved using a multi-stage interleaving scheme is provided, the deinterleaver comprising preprocessing means (12) for ordering the data bits in the stream into pairs, such that the data bits in the pair are consecutive data bits from a symbol; at least one memory (16,18) for storing the paired bits, such that each pair of data bits is stored in a respective location in the memory; and a read and write address generator (20) for the at least one memory, the generator being adapted to determine the addresses in the at least one memory that pairs of data bits are to be stored, and to determine the addresses in the at least one memory that pairs of data bits are to be read from.
    • 提供了一种用于无线通信设备的解交织器(10),其实现简单且便宜。 特别地,提供了一种解交织器,用于对表示使用多级交织方案交织的多个符号的数据比特流进行解交织,所述解交织器包括用于将流中的数据比特排列成对的预处理装置(12) 使得该对中的数据位是来自符号的连续数据位; 至少一个用于存储所述配对位的存储器(16,18),使得每对数据位被存储在所述存储器中的相应位置中; 以及用于所述至少一个存储器的读取和写入地址生成器(20),所述发生器适于确定所述至少一个存储器中的数据位对将被存储的地址,并且至少确定所述地址 一个要读取的数据位对的存储器。
    • 4. 发明申请
    • CANONICAL SIGNED DIGIT MULTIPLIER
    • 经典签名数字乘法器
    • WO2006103601A2
    • 2006-10-05
    • PCT/IB2006050892
    • 2006-03-23
    • KONINKL PHILIPS ELECTRONICS NVPU TIANYANBI LEI
    • PU TIANYANBI LEI
    • G06F7/533
    • G06F7/5332
    • A multiplier is able to multiply an input data value by a selected constant value in CSD form. The selected constant value has a plurality of pairs of bits, and the multiplier includes multiplexers, each controlled by a respective pair of bits of the selected constant value. Each of the multiplexers has a plurality of inputs, and is connected to receive the input data value, the inverse of the input data value, and all zeros on said inputs, and it is controlled such that it outputs either the input data value, the inverse of the input data value, or all zeros, depending on the values of the respective pair of bits of the selected constant value. Variable shift blocks are each connected to receive an input from a respective one of said multiplexers, and are each adapted to shift their received input by a first bit shift value or a second bit shift value, depending on the values of the respective pair of bits of the selected constant value, wherein the first bit shift value and the second bit shift value differ by 1. The multiplier also includes combination circuitry, for receiving the outputs from the plurality of shift blocks, and for combining the outputs from the plurality of shift blocks and applying further bit shifts, to form an output value equal to the result of multiplying the input data value by the selected constant value.
    • 乘数能够以CSD形式将输入数据值乘以选定的常数值。 所选择的常数值具有多个位对,并且乘法器包括多路复用器,每个由多个选择的常数值的相应位组控制。 每个多路复用器具有多个输入,并且被连接以接收输入数据值,输入数据值的倒数和所述输入上的全零,并且它被控制成使得其输出输入数据值, 取决于所选常数值的相应位对的值,输入数据值的倒数或全零。 可变移位块各自被连接以接收来自所述多路复用器中的相应一个的输入,并且各自适于根据相应的位对的值将其接收到的输入移位第一位移位值或第二位移位值 其中所述第一位移位值和所述第二位移位值相差1.所述乘法器还包括组合电路,用于接收来自所述多个移位块的输出,并且用于组合来自所述多个移位的输出 块并且进一步进行位移,以形成等于将输入数据值乘以选定常数值的结果的输出值。