公开(公告)号：EP2041692A1

公开(公告)日：2009-04-01

申请号：EP07747535.8

申请日：2007-06-27

申请人： Nedap Agri B.V.

发明人： STEKELENBURG, Jan Cornelis

IPC分类号： G06K7/00

CPC分类号： G06K7/0008

摘要： A transceiver (1) device for responder signals provided by responders of a radio-frequency identification system, comprising a transmitter (2) which generates a transmitter signal on the basis of a crystal oscillator (3) and supplies it to at least one antenna (4) for forming an interrogation field for responders, and a receiving device connected with the at least one antenna for receiving signals generated by a responder, provided with means for reconstructing the original transmitter signal from the antenna signal and with an adding device with a negative input, to which the reconstructed signal is supplied, and a positive input, to which the antenna signal is supplied, wherein the output of the adding device (16) is connected with an AM receiver (17), which provides a responder signal as an output signal, and a method for obtaining a responder signal from an antenna signal of a transceiver device (1).

公开(公告)号：EP1949035A1

公开(公告)日：2008-07-30

申请号：EP06824264.3

申请日：2006-11-20

申请人： Nedap Agri B.V.

发明人： VERSTEGE, Albertino Bernardo Maria ,  ZENTS, Otto Theodorus Jozef ,  BENEDICTUS, Hans

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01D5/251 ,  A61D17/00

CPC分类号： A61D17/002 ,  G01D5/2515 ,  G01P13/00 ,  H01H35/022 ,  H01H35/147 ,  H01H36/0066

摘要： A motion detector, in particular suitable for animals, comprising at least one motion element, wherein an element movable within a predetermined area is located, which brings about an electrical connection in at least one position, wherein the movable element is a magnetic element, which can move along a path of travel formed by a cavity in the motion element, and wherein, near the path of travel, at least one magnetically sensitive switching element is placed, which can be influenced by the magnetic element.

公开(公告)号：EP2160698A1

公开(公告)日：2010-03-10

申请号：EP08766801.8

申请日：2008-06-13

申请人： Nedap Agri B.V.

发明人： ROOSENBOOM, Derk Jan

IPC分类号： G06K7/00

CPC分类号： G06K7/0008 ,  G06K7/10336 ,  G06K7/10356

摘要： A system for recognizing animals in a detection zone (4) wherein the animals are provided with a label (6.i) that responds by transmitting a return signal with information when the label is (6.i) introduced into an electromagnetic interrogation field, provided with at least a transmitting and receiving system (2) for transmitting the electromagnetic interrogation field in the detection zone (4) and for receiving a return signal from a label (6.i) located in the detection zone (4), whereby the transmitting and receiving system (2) is provided with a plurality of antennas (8.i) for receiving a return signal from at least one label (6.i) present in the detection zone (4) wherein the antennas (8.i) are designed and arranged to discretely receive electromagnetic signals which come from mutually different subzones (4.i) wherein the subzones (4.i) in combination from the detection (4) zone.