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Abstract

Data is stored in and read from a semiconductor memory system including multiple memory integrated circuits in data units commonly exchanged with a rotating memory device. One or more data units to be stored are clustered with a multiplicity of other data units stored in the semi conductor memory to form a cluster of data units. The cluster of data units is compressed, and the compressed cluster of data units is then error correction coded. The compressed cluster of data units is then stored in the semiconductor memory with a multiplicity of contiguous data bits being stored in a single memory integrated circuit. Data compression reduces the number of memory integrated circuits required, thereby reducing both cost and power consumption. Data is stored in and read out of the memory integrated circuits serially such that only a single memory integrated circuit is active at a time, further reducing power consumption.

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First Claim