会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 105. 发明申请
    • Data demodulation for a CDMA communication system
    • CDMA通信系统的数据解调
    • US20050083998A1
    • 2005-04-21
    • US10688145
    • 2003-10-17
    • Tao LiLi Zhang
    • Tao LiLi Zhang
    • H04J11/00H04B1/707
    • H04B1/707H04B2201/70707H04J13/0044H04J13/12
    • An integrated circuit that performs data demodulation on partially despread symbols includes a despreading unit, a channel compensation unit, and a symbol combiner. The despreading unit despreads input samples and provides despread symbols for a first code channel with a first spreading factor. The channel compensation unit multiplies the despread symbols with channel estimates and provides demodulated symbols. The symbol combiner combines groups of demodulated symbols to obtain recovered data symbols for a second code channel with a second spreading factor that is an integer multiple of the first spreading factor. The channel compensation and symbol combining are dependent on whether or not transmit diversity is used. For a TDM design, despread symbols for multiple first code channels are processed in a TDM manner, one channel at a time, to obtain recovered data symbols for multiple second code channels. The channel compensation unit and symbol combiner can be operated in a pipelined manner.
    • 对部分解扩符号执行数据解调的集成电路包括解扩单元,信道补偿单元和符号组合器。 解扩单元对输入样本进行解扩,并为具有第一扩频因子的第一码信道提供解扩符号。 信道补偿单元将解扩符号与信道估计相乘,并提供解调符号。 符号组合器组合解调符号组,以获得具有作为第一扩频因子的整数倍的第二扩展因子的第二码信道的恢复数据符号。 信道补偿和符号组合取决于是否使用发射分集。 对于TDM设计,针对多个第一代码信道的解扩符号以TDM方式一次处理一个信道,以获得多个第二代码信道的恢复数据符号。 信道补偿单元和符号组合器可以以流水线方式操作。
    • 107. 发明授权
    • Variable length instruction decoder
    • 可变长度指令解码器
    • US06425070B1
    • 2002-07-23
    • US09044086
    • 1998-03-18
    • Qiuzhen ZouGilbert C. SihInyup KangQuaeed MotiwalaDeepu JohnLi ZhangHaitao ZhangWay-Shing Lee
    • Qiuzhen ZouGilbert C. SihInyup KangQuaeed MotiwalaDeepu JohnLi ZhangHaitao ZhangWay-Shing Lee
    • G06F9302
    • G06F9/3816G06F9/30014G06F9/30098G06F9/30149G06F9/30152G06F9/3885G06F15/7857
    • The present invention is a novel and improved method and circuit for digital signal processing. One aspect of the invention calls for the use of a variable length instruction set. A portion of the variable length instructions may be stored in adjacent locations within memory space with the beginning and ending of instructions occurring across memory word boundaries. Furthermore, additional aspects of the invention are realized by having instructions contain variable numbers of instruction fragments. Each instruction fragment causes a particular operation, or operations, to be performed allowing multiple operations during each clock cycle. Thus, multiple operations are performed during each clock cycle, reducing the total number of clock cycles necessary to perform a task. The exemplary DSP includes a set of three data buses over which data may be exchanged with a register bank and three data memories. The use of more than two data buses, and especially three data buses, realizes another aspect of the invention, which is significantly reduced bus contention. One embodiment of the invention calls for the data buses to include one wide bus and two narrow buses. The wide bus is coupled to a wide data memory and the two narrow buses are coupled to two narrow data memories. Another aspect of the invention is realized by the use of a register bank that has registers accessible by at least two processing units. This allows multiple operations to be performed on a particular set of data by the multiple processing units, without reading and writing the data to and from a memory. The processing units in the exemplary embodiment of the invention include an arithmetic logic (ALU) and a multiply-accumulate (MAC) unit. When combined with the use of the multiple bus architecture, highly parallel instructions, or both, an additional aspect of the invention is realized where highly pipelined, multi-operation, processing is performed.
    • 本发明是用于数字信号处理的新颖且改进的方法和电路。 本发明的一个方面要求使用可变长度指令集。 可变长度指令的一部分可以存储在存储器空间内的相邻位置,同时跨越存储器字边界的指令的开始和结束。 此外,通过使指令包含可变数量的指令片段来实现本发明的附加方面。 每个指令片段导致执行特定操作或操作,允许在每个时钟周期期间进行多个操作。 因此,在每个时钟周期期间执行多个操作,减少执行任务所需的总时钟周期数。 示例性DSP包括一组三个数据总线,数据可以通过该数据总线与寄存器组和三个数据存储器交换。 使用两条以上的数据总线,特别是三条数据总线,实现了本发明的另一方面,这显着减少了总线竞争。 本发明的一个实施例要求数据总线包括一个宽的总线和两个窄的总线。 宽总线耦合到宽数据存储器,并且两个窄总线耦合到两个窄数据存储器。 通过使用具有可由至少两个处理单元访问的寄存器的寄存器组来实现本发明的另一方面。 这允许通过多个处理单元对特定数据集执行多个操作,而不向存储器读取和写入数据。 本发明的示例性实施例中的处理单元包括算术逻辑(ALU)和乘法累加(MAC)单元。 当结合使用多总线架构,高度并行指令或两者时,实现本发明的另一方面,其中执行高度流水线化,多操作的处理。
    • 108. 发明授权
    • Electrodialysis including filled cell electrodialysis
(electrodeionization)
    • 电渗析包括填充细胞电渗析(电去离子)
    • US5679228A
    • 1997-10-21
    • US571403
    • 1995-12-13
    • Irving D. ElyanowWayne A. McRaeKeith J. SimsLi Zhang
    • Irving D. ElyanowWayne A. McRaeKeith J. SimsLi Zhang
    • A23C9/144B01D61/44B01D61/46B01D61/48B01D61/58B01J47/08C01B11/04C01B11/06C02F1/42C02F1/44C02F1/467C02F1/469C02F9/00
    • A23C9/144B01D61/44B01D61/48B01D61/58B01J47/08C01B11/04C01B11/06C02F1/441C02F1/469B01D61/025B01D61/027B01D61/145B01D61/147B01D61/422C02F1/42C02F1/44C02F1/4674C02F1/4693C02F1/4695C02F2101/163C02F2201/46115C02F9/00
    • Improved electrodialysis (ED) stacks are disclosed having one or more components selected from the group: a) cation exchange membranes having ion exchange groups predominantly sulfonic acid groups and a minor amount of weakly acidic and/or weakly basic groups or membranes which are selective to monovalent cations and simultaneously therewith, cation exchange granules selective to monovalent cations as packing in the dilute compartments; b) anion exchange membranes having as ion exchange groups only quaternary ammonium and/or quaternary phosphonium groups and substantially no primary, secondary and/or tertiary amine and/or phosphine groups or membranes which are selective to monovalent anions simultaneously therewith, anion exchange granules selective to monovalent anions as packing in the dilute compartments; c) as packing in the dilute compartment, anion exchange granules which are selective to monovalent anions, or cation exchange granules which are selective to monovalent cations, or cation exchange granules having as exchange groups a predominant amount of sulfonic acid groups and a minor amount of weakly acidic and/or weakly basic groups, or anion exchange granules consisting of organic polymers having as anion exchange groups only quaternary ammonium and/or quaternary phosphonium groups and almost no primary, secondary and/or tertiary amine and/or phosphine groups.
    • 公开了改进的电渗析(ED)堆叠,其具有一个或多个选自以下的组分:a)具有主要为磺酸基团的离子交换基团和少量弱酸性和/或弱碱性基团或膜的阳离子交换膜, 一价阳离子,同时具有选择性的阳离子交换颗粒,作为填充在稀室中的一价阳离子; b)具有作为离子交换基团的离子交换基团的阴离子交换膜仅具有季铵和/或季鏻基团,并且基本上不具有与单价阴离子同时选择性的伯,仲和/或叔胺和/或膦基或膜,阴离子交换颗粒选择性 作为包装在稀释室中的单价阴离子; c)作为稀释室中的填料,对单价阴离子有选择性的阴离子交换颗粒,或对一价阳离子有选择性的阳离子交换颗粒,或具有主要量的磺酸基和交替基团的阳离子交换颗粒, 弱酸性和/或弱碱性基团或由具有阴离子交换基团的有机聚合物组成的阴离子交换颗粒仅为季铵和/或季鏻基团,并且几乎不具有伯,仲和/或叔胺和/或膦基团。