Patent Document ID: 4386416
Application ID: 06261123

Base Claim:
1. A system for compressing data by reducing the number of binary bits required to represent the data comprising: memory means for storing each of a plurality of selected units of a set of units in unit positions to form a library, each unit position having a memory address expressed in bits, processing means for detecting each unit in the data and searching the memory to determine if the respective unit in the data is in the library, and alternatively compiling data representative of the units which are not stored in the memory library or the addresses of the units which are stored in the memory library together with a code indicating which alternative is compiled in each instance.

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Claim 6:
6. The system of claim 1 wherein the memory means for storing the selected units is a memory into which data representative of the units can be written and from which the data representative of the units can be read.