The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 1991
Filed:
Oct. 10, 1989
Roderick A Cooley, Harpenden, GB;
ANthony J Cronshaw, Stapleford, GB;
Xerox Corporation, Stamford, CT (US);
Abstract
A color detection and/or recognition apparatus comprises a twin row array (16) of detector elements, each element being arranged to produce an electrical signal on detection of a given color. The two rows (21, 22) each comprise a plurality of groups of detector elements, with the elements in each group of at least one of the arrays being sensitive to a respective different color, with corresponding elements in the two rows being sensitive to different colors, and with the four elements of adjacent corresponding pairs of elements in the two rows being sensitive to at least three different colors. THe electrical signals are processed to provide a determination of the detection of color or the recognition of a color. The two rows of detector elements, typically photosensitive sites in CCD arrays, may be formed closely adjacent one another on the same semiconductor substrate, together with CCD shift registers (23, 24) along the outside edges of the two rows. A line buffer delay circuit (25) may be provided for the outputs of one of the rows.