| 摘要 |
#CMT# #/CMT# The device has a processing unit (10) receiving signals from a charge coupled device (CCD) camera (8) and mirrors to extract luminance levels of the signals in correlation with a thickness dimension of a stack (5), and to generate a determined signal i.e. filtered signal. An extraction unit extracts a periodic pattern representing one of thin products (2), from the determined signal. A calculation unit calculates number of products by intercorrelation using the pattern, to determine number of patterns corresponding to the number of products by histogram. #CMT# : #/CMT# Independent claims are also included for the following: (1) a method of processing a signal from a detection circuit of a thin product counting device (2) a computer program comprising a set of instructions for performing a signal processing method. #CMT#USE : #/CMT# Device for counting a set of thin products e.g. portable objects such as chip cards, stacked side by side and processed by a personalization machine and a logical personalization station (all claimed), along a determined direction in a maintenance unit i.e. rectangular tray. #CMT#ADVANTAGE : #/CMT# The device reliably counts the number of thin products in a lot of small series, in an automated manner and with a better rate, even in case of presence of certain stacking irregularities in the lot. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of a thin product counting device with a contact image sensor (CIS) module covering a stack. 2 : Thin products 4 : Rectangular tray 5 : Stack 8 : Charge coupled device camera 10 : Processing unit. |
