| 摘要 |
An encoding circuit for retrieval apparatus wherein retrieval or access phrases are entered via an alphanumeric keyboard which converts each character into a m bit binary code. The phrases are then broken into segments of n characters each of which are logically compared with each other in a particular manner so that the first bit of the first segment's first character is compared with the first bit of the second segment's first character, etc. The results of this first comparison is then similarly compared with the character bits of the next segment, and the cycle is repeated for any additional segments.
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