Automatic status discriminator

Details Automatic status discriminator Automatic status discriminator

1989-12-20

1991-06-11

Perkey, W. B.

354433, G03B 708, G03B 1505

Patent

active

050236474

ABSTRACT:
An automatic status discriminator has a distance measuring unit for calculating the distance to a target object to provide a signal corresponding to the distance. A reflection coefficient calculation unit calculates the reflection coefficient of the target object on the basis of the signal provided from the distance measuring unit. A light intensity measuring unit provides signals respectively corresponding to the brightness of the target object and the brightness of a region near the target object. An adjusting unit adjusts the signal corresponding to the brightness of the target object on the basis of the reflection coefficient obtained from the reflection coefficient calculation unit to provide the adjusted signal. A status discriminating means compares the signal corresponding to the brightness of the region near the target object with the output from the adjusting unit to thereby discriminate the status of the target object.

REFERENCES:
patent: 3583299 (1971-06-01), Land
patent: 3836920 (1974-09-01), Uchiyama et al.
patent: 3855601 (1974-12-01), Uchiyama et al.
patent: 4063257 (1977-12-01), Mashimo et al.
patent: 4664495 (1987-05-01), Alyfuku et al.

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