Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2005-08-02
2005-08-02
Luu, Thanh X. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C700S106000
Reexamination Certificate
active
06924473
ABSTRACT:
A parts shelf (2) has a configuration in which a storage box holding member for holding a plurality of parts storage boxes and a sensor holding member for holding photoelectric sensors are provided separately from each other. As the photoelectric sensor, an area sensor (100) capable of sensing coordinates of a position in which light is shielded in a predetermined two-dimensional area close to the front of the storage box holding member is employed. In an information processor (1), information of parts corresponding to a plurality of parts storage boxes of the storage box holding member and sizes and positions of the storage boxes is pre-stored. On the basis of the pre-stored information and the light-shielded position coordinates sensed by the area sensor, the storage box storing apart, the hand of the operator has reached is sensed.
REFERENCES:
patent: 6748295 (2004-06-01), Tilles et al.
patent: 05-042461 (1993-02-01), None
patent: 10-301472 (1998-11-01), None
Foley & Lardner LLP
Sohn Seung C.
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