Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2006-04-25
2006-04-25
Pyo, Kevin (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S222100, C340S555000
Reexamination Certificate
active
07034280
ABSTRACT:
The invention relates to a light grid having a transmitter strip for the transmission of a plurality of light beams and a receiver strip for the reception of these light beams, an evaluation unit for the processing of received signals generated in dependence on the light beams received and a memory for reference values which can be compared with the received signals by means of the evaluation unit, with a position transducer being provided for the determination of the position of an object introduced into the monitored zone of the evaluation unit being able to be supplied with position signals supplied by the position transducer and the comparison of the reference values with the received values being able to be carried out in dependence on the position signals.
REFERENCES:
patent: 4430568 (1984-02-01), Yoshida et al.
patent: 5065418 (1991-11-01), Bermbach et al.
patent: 5243183 (1993-09-01), Barron, Jr. et al.
patent: 5424532 (1995-06-01), Occheto et al.
patent: 5461227 (1995-10-01), Blau
patent: 1093192 (1981-01-01), None
patent: 295 00 873.3 (1995-04-01), None
patent: 44 22 497 (1996-01-01), None
patent: 44 24 537 (1996-01-01), None
patent: 196 01 661 (1997-07-01), None
patent: 197 30 885 (1999-01-01), None
patent: 198 35 884 (2000-02-01), None
patent: 199 46 476 (2001-03-01), None
patent: 100 38 025 (2002-03-01), None
patent: 101 42 161 (2003-03-01), None
Beck Michael
Haberstroh Frank
Rieger Daniel
Harness Dickey & Pierce
Pyo Kevin
Sick AG
LandOfFree
Light grid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light grid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light grid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3585486