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    • 5. 发明授权
    • Memory system for storing data from variable numbers of input data
streams
    • 用于存储来自可变数量的输入数据流的数据的存储器系统
    • US4975880A
    • 1990-12-04
    • US188882
    • 1988-05-02
    • Daniel G. KnierimJohn A. Martin
    • Daniel G. KnierimJohn A. Martin
    • G01R33/387G01R13/20G01R13/22G11C7/00G11C7/10G11C8/00
    • G11C7/10G11C7/00
    • The present invention constitutes a memory system comprising a multiple number of individual memory units (40-47) for storing digital data from a variable number of data input streams and for efficiently using the memory capacities of the memory units in the system by controlling the routing of data between the memory units. Each one of the memory units includes a set of input multiplexers (100-103), a set of shift/shadow registers (110-113) and a memory component (120) having a RAM memory array (121). The components of the memory units are implemented on a single integrated circuit chip. The input multiplexers allow alternate data streams to be selected for input to the shift/shadow registers. The shift/shadow registers are operative for enabling data to be transferred to and from the memory array at speeds slower than the rate at which these data are received by the system. The memory units are interconnected so that data can be routed from the outputs of the units to the inputs of other units in the system as alternative input data. Alternative memory systems are also provided which include memory units arranged for storing data bits of equal significance level within each memory unit through the use of internal connections between the outputs of shift/shadow registers and the input multiplexers in the units which facilitate the internal routing of data within individual memory units.
    • 本发明构成一种存储系统,其包括多个单独的存储单元(40-47),用于存储来自可变数量的数据输入流的数字数据,并且通过控制路由来有效地使用系统中的存储器单元的存储器容量 的存储器单元之间的数据。 每个存储单元包括一组输入多路复用器(100-103),一组移位/影子寄存器(110-113)和具有RAM存储器阵列(121)的存储器组件(120)。 存储器单元的组件在单个集成电路芯片上实现。 输入多路复用器允许选择备用数据流以输入到移位/影子寄存器。 移位/影子寄存器用于使数据能够以比系统接收这些数据的速率慢的速度传送到存储器阵列和从存储器阵列传送。 存储器单元互连,使得数据可以从单元的输出路由到系统中的其他单元的输入,作为替代的输入数据。 还提供了替代存储器系统,其包括存储器单元,其被布置用于通过使用便于内部路由的单元中的移位/影子寄存器和输入多路复用器之间的内部连接来存储每个存储器单元内的相同重要性级别的数据位 单个内存单元中的数据。