Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1989-12-19
1992-02-25
Shaver, Kevin P.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209639, 209939, 2502521, 356237, 358106, B07C 5342, G01N 2188, H04N 5335
Patent
active
050905767
ABSTRACT:
Method and apparatus for sorting objects dependent on optical characteristics thereof. The objects are conveyed through a longitudinal sorting zone. Light reflected from the objects passing the zone is detected by at least one imaging device having at least one single line array of equally spaced light sensitive imaging elements. The line array of imaging elements is repeatedly read out in series for providing a primary line signal comprising for each scan of the line array a primary group of primary intervals corresponding to respective imaging elements. Information representing light detected by each group of primary intervals is allocated to a secondary group of secondary intervals having the same duration of a secondary line signal for each scan such that the distribution of information allocated to a secondary group corresponds linearly to the distribution of the optical properties in the zone. Allocation is possible by scanning each imaging element for the same period of time and storing the information thus obtained in one or more locations of a memory according to a predetermined distribution table. Allocation is also possible by scanning the imaging elements with different periods of time dependent on a predetermined duration table providing the secondary line signal which can be supplied to a memory which receives a constant clock frequency during writing thereof. In each case the second line signal is provided when the respective memory is read out with a constant clock frequency. Secondary intervals of secondary line signals obtained from different imaging devices may then relate to identical parts of the zone for comparison purposes and for driving object rejectors corresponding to the parts dependent on the comparison results.
REFERENCES:
patent: 3545610 (1970-12-01), Kelly et al.
patent: 3901388 (1975-08-01), Kelly
patent: 3977526 (1976-08-01), Gordon et al.
patent: 4352430 (1982-10-01), Maier et al.
patent: 4491868 (1985-01-01), Berridge, Jr. et al.
patent: 4581632 (1986-04-01), Davis et al.
patent: 4909930 (1990-03-01), Cole
Elbicon N.V.
Shaver Kevin P.
Wacyra Edward M.
LandOfFree
Method and apparatus for sorting a flow of objects as a function does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for sorting a flow of objects as a function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for sorting a flow of objects as a function will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1887565