Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-10-04
2009-08-04
Le, Que T (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S22300B
Reexamination Certificate
active
07569806
ABSTRACT:
An embodiment of the present invention comprises: at least one light-emitting portion that emits light; a plurality of light-receiving portions, disposed at intervals in the passing direction of the moving object, that receive and detect light emitted from the light-emitting portion and reflected by the moving object; a holding portion that holds information indicating the passing direction of the moving object corresponding to a change in the detection outputs of the light-receiving portions occurring when the light-receiving portions receive the light reflected by the moving object; and a determination portion that determines the passing of the moving object based on the passing direction of the moving object as held by the holding portion and the detection outputs of the light-receiving portions occurring when the light-receiving portions receive the light reflected by the next moving object.
REFERENCES:
patent: 5427444 (1995-06-01), Griesemer
patent: 2001-318164 (2001-11-01), None
patent: 2006-71621 (2006-03-01), None
patent: 2006-136410 (2006-06-01), None
Birch & Stewart Kolasch & Birch, LLP
Le Que T
Sharp Kabushiki Kaisha
LandOfFree
Moving object detection photointerrupter having a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moving object detection photointerrupter having a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moving object detection photointerrupter having a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4057821