专利内容由知识产权出版社提供
专利名称:Bubble memory system having defective
minor loops
发明人:Farooq M. Quadri申请号:US06/055993申请日:19790709公开号:US04321692A公开日:19820323
摘要:Disclosed is a bubble memory system that includes a plurality of bubblememory chips. Each of the chips have a number of minor loops, but only a predeterminedportion of the loops are utilized to store information therein. The remaining loops maybe defective and are not used. Data words that are to be stored in the bubble memorychips are passed through a first FIFO circuit which scrambles the bits in the words prior totheir storage in the bubble memory chips. Due to this scrambling operation, no bits arestored in the defective loops. Data bits that are received from the bubble memory chipsare passed thorugh a second FIFO circuit. There, all of the bits of each word are thenrealigned and presented at the FIFO output in parallel.
申请人:NATIONAL SEMICONDUCTOR CORPORATION
代理机构:Brown & Martin
更多信息请下载全文后查看