24/06/2005 - Controller General of Patents, Designs, and Trade Marks

(21) Application No. 676/DEL/1997 A (22) Date of filing of Application: 18/03/1997
(54) Title of the invention: “METHOD AND APARATUS AUTOMATICALLY CHECKING THE PRINTING
QUALITY FOR MULTICOLOR IMAGE”
(51) International Classification 7 : G06K 9/00
(30) Priority Data:
(31) Document No.: MI96A000568
(32) Date: 22/03/1996
(33) Name of convention country: ITALY
(66) Filed U/s 5(2): NIL
(61) Patent of addition to application No.: NA
(62) Filed on: NA
(63) Divisional to Application No.: NIL
(64) Filed on: NA
Total No Of Page: 12
(57) Abstract:
(71) Name of the applicant:
DA LA RUE GIORI S.A, A SWISS
COMPANY
Address of the Applicant:
4, Rue De La Paix, 1003 Lausanne,
Switzerland.
(72) Name of the Inventor:
DA LA RUE GIORI
A sheet of paper (1) with the image to be checked passes in front of a camera (3) designed to
capture three chromatic images and to emit three signals (S1, S2, S3). These signals are introduced
into a device (4) applying a function F which comprises coefficients (K1, K2, K3, K10, K20, K30)
previously recorded in a suitable device (2). The single signal (5) resulting from the function F is
delivered to a device (6) for checking the printing.
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