公开(公告)号：EP1422655A3

公开(公告)日：2004-10-13

申请号：EP03078607.3

申请日：2003-11-13

申请人： EASTMAN KODAK COMPANY

发明人： Phinney, Jennifer J., c/o Eastman Kodak Company ,  Phinney, Daniel P., c/o Eastman Kodak Company ,  Pultorak, David M., c/o Eastman Kodak Company ,  Blish, Nelson A., c/o Eastman Kodak Company

IPC分类号： G06K13/16 ,  B65H7/12 ,  B65H9/20 ,  H04N1/00

CPC分类号： B65H7/125 ,  B65H2553/30 ,  G01N29/075 ,  G01N2291/0237 ,  G01N2291/106

摘要： An apparatus (10) for detection of multiple documents (42) in a document transport system comprises a first transmitter (13) emitting a first signal at a first interval through a document feed path (40). A first sensor (14) detects the first signal from the first transmitter (13). A second transmitter (15) emits a second signal at a second interval through the document feed path (40). A second sensor (16) detects the second signal from the second transmitter (15).

公开(公告)号：EP1148012A3

公开(公告)日：2003-01-08

申请号：EP01201279.5

申请日：2001-04-09

申请人： EASTMAN KODAK COMPANY

发明人： Phinney, Daniel P., c/o Eastman Kodak Company ,  Pultorak, David M., c/o Eastman Kodak Company ,  Titus, Albert H., c/o Eastman Kodak Company

IPC分类号： B65H7/12

CPC分类号： B65H7/125 ,  B65H2553/30 ,  G01N29/075 ,  G01N2291/0237

摘要： According to one aspect of the present invention an apparatus for multiple document detection comprises an ultrasonic transmitter (14) for transmitting an ultrasonic signal (16). An ultrasonic receiver (20) receives the ultrasonic signal (17), after it passes through the at least one of the multiple documents (18). A phase comparator (24) compares the transmitted ultrasonic signal (16) and the received ultrasonic signal (17), and an amplitude measurement circuit (26) compares the received ultrasonic signal (17) to a reference. A microprocessor (32) compares an information signal (28) from the phase comparator (24) and an information signal (30) from the amplitude measurement circuit (26) to a predetermined threshold to determine if multiple documents are present.

摘要翻译： 。根据用于超声波发射器（14），用于超声信号（16）的发射的多个原稿检测包括装置的本发明的一个方面。 一种超声波接收器（20）接收超声信号（17），它穿过所述多个文档的至少一个（18）之后。 相位比较器（24）比较反mitted超声信号（16）和所述接收到的超声波信号（17），和振幅测量电路（26）接收到的超声信号（17）比较的参考。 微处理器（32）进行比较，以从相位比较器（24）和从振幅测量电路（26）与预定阈值的信息信号（30）的信息信号（28），以确定是否多个文件是否存在。