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:
Mar. 31, 1981
Filed:
Oct. 30, 1978
Applicant:
Inventor:
Raymond E Babb, Fremont, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
356402 ; 356407 ; 356243 ;
Abstract
Apparatus for color grading of products such as fruits, vegetables, et cetera, employing a light source for illuminating the product and means for detecting and comparing the reflectance to measure certain product properties. For calibration, a target of known color is moved in front of the light source and the resulting signal is compared with a reference signal to generate a modifying signal. For automatic calibration of the apparatus this modifying signal is stored and thereafter used to adjust all subsequent readout signals.