Data string retrieval apparatus for IC card

Details Data string retrieval apparatus for IC card Data string retrieval apparatus for IC card

1989-03-16

1990-10-30

Zache, Raulfe B.

Boots, shoes, and leggings

364963, 3649635, 3649294, G06F 100

Patent

active

049673912

ABSTRACT:
Two access buses are arranged such that one access bus connects a memory section from which data is retrieved to a retrieval section, and the other access bus is connected to a control section. The two access buses are connected to each other through a gate. While the retrieval section is operated, the gate is disabled. Otherwise, the gate is enabled. Key words located at different positions are sampled, and compared with a plurality of key words externally supplied. A data string to be retrieved is then recognized in accordance with a combination of a plurality of comparison results. In addition, retrieval is performed upon determination whether data string length data added to the start portion of the data string or predetermined data string length data supplied from the control section is used as data string length data for generating the start address of the next data string.

REFERENCES:
patent: 4068301 (1978-01-01), Ishino et al.
patent: 4152762 (1979-05-01), Bird et al.

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