Data processing method in recognition system

Details Data processing method in recognition system Data processing method in recognition system

1989-05-02

1990-07-10

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 8, 364132, 364138, 36447411, 364478, G06K 900

Patent

active

049411810

ABSTRACT:
A recognition system including a data carrier which is attached to a moving article and which has a memory storing identification data of the article and a control system communicating with the data carrier without any contact therebetween. The control system includes a higher-level controller, a plurality of lower-level controllers connected thereto, and read/write heads connected to the lower-level controllers. The higher-level controller sequentially sends an auto read/write command to the lower-level controllers. In response thereto, when the data carrier approaches one of the lower-level controllers, the lower-level controller communicates with the data carrier so as to access the memory thereof. The lower-level controller temporarily keeps a result of the memory access (the response from the data carrier) such that on receiving a command from the higher-level controller, the lower-level controller transmits the memory access result thus temporarily kept therein to the higher-level controller.

REFERENCES:
patent: 4577344 (1986-03-01), Warren et al.
patent: 4587607 (1986-05-01), Kurakake
patent: 4731733 (1988-03-01), Knoll
patent: 4827425 (1987-05-01), Linden
patent: 4837704 (1989-06-01), Lengefeld
patent: 4841431 (1989-06-01), Takagi et al.

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