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METHOD AND APPARATUS FOR ACCESSING HORIZONTAL SEQUENCES AND RECTANGULAR SUBARRAYS FROM AN ARRAY IN A MODIFIED WORD ORGANIZED RANDOM ACCESS MEMORY SYSTEM
METHOD AND APPARATUS FOR ACCESSING HORIZONTAL SEQUENCES AND RECTANGULAR SUBARRAYS FROM AN ARRAY IN A MODIFIED WORD ORGANIZED RANDOM ACCESS MEMORY SYSTEM
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机译:在改进的单词组织的随机访问存储器系统中从阵列访问水平序列和矩形子阵列的方法和装置
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摘要
A conventional word organized random access memory is modified for image processing operations so that the pq image points of any 1 × pq or p × q subarray of an rp × sq or smaller image array stored in the memory can be extracted or updated in a single memory cycle. The invention contemplates pq memory modules labeled from 0 to pq- 1 for storing the image points, each module being able to store rs points in distinguishable cells, only one cell of which is randomly accessible in a single instant of time. The invention further contemplates accessing circuitry for causing each image point I(i,j) of an image array to be routed to or from a memory module M(i,j) according to the relation M(i,j) =(iq+j)//pq, where (iq+j)//pq is the remainder resulting from the integer division of (iq+j) by pq. The accessing circuitry additionally causes image point I(i,j) to be stored into or retrieved from a cell location A(i,j) of module M(i,j) according to the relation A(i,j)=(i/p)s+(j/q), where i/p and j/q represent integer quotients.
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