Patent ID: 7387245
Filing Date: 2008-06-17
Classification: G06K

Abstract:
1. An information pattern discriminating apparatus for discriminating product based on information pattern signal detected of the product by a sensor while one of the product and the sensor is moved relative to the other of the product and the sensor, which said apparatus comprises: a standard signal storage unit for storing a standard information pall em signal detected within a designated time width in connection with a product that is used as a standard product; a time deviation width setting unit for setting a predetermined tolerated time deviation width of the information pattern signal of the product; and a determining unit for comparing the information pattern signal, detected of the product, with the standard information pattern signal and for performing an OK determination in the event that the information pattern signal coincides with the standard information pattern signal within the tolerated time deviation width, but an NG determination in the event that the information pattern signal does not coincide with the standard information pattern signal within the tolerated time deviation width, wherein the determining unit is further operable to determine that the information pattern signal and the standard information pattern coincide with each other in the event that the time width of the information pattern signal is different from the designated time width of the standard information pattern signal, the ratio of respective times of constituent patterns of those information pattern signals is the same among different constituent patterns, but that the information pattern signal and the standard information pattern do not coincide with each other in the event that the time width of the information pattern signal deviates from the designated time width by a quantity equal to a predetermined value or more.