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公开(公告)号:US20210007513A1
公开(公告)日:2021-01-14
申请号:US16980597
申请日:2019-03-14
发明人: Graham Murdoch , Ganesh Nagendra
摘要: A shelf (100) for use in electronic reading applications includes a printed circuit board (PCB) (102) and a shelf member (110). The PCB carries a plurality of electronic components (104) which define a circuit board topography having relief features standing proud of a surface (106) of the PCB. The shelf member (110) has a first side (112) and an opposed, second side (114). The second side of the shelf member has recesses (116) corresponding to a negative of the circuit board topography, and the surface (106) of the PCB is attached to the second side (114) of the shelf member so that the electronic components (104) are received within the recesses (116) of the shelf member (110).
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公开(公告)号:US20220230004A1
公开(公告)日:2022-07-21
申请号:US17608614
申请日:2020-06-18
发明人: Graham Murdoch , Tai Wai Pong , Ganesh Nagendra , Yuxin Sun
IPC分类号: G06K7/10
摘要: An RFID system (200) includes an RFID reader (202), an antenna array (204) and a length compensation unit (215). The RFID reader (202) is configured to interrogate RFID antennas. The antenna array (204) includes two or more RFID antennas (206) connectable to the RFID reader (202) via a series of cable links (208). Each RFID antenna (206) is associated with a respective cable link (208), and each cable link (208) has a cable length. The length compensation unit (215) is associated with each RFID antenna (206), and is configured to adjust a total cable length between the RFID reader (202) and a respective RFID antenna (206) to be an effective cable length.
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公开(公告)号:US11989614B2
公开(公告)日:2024-05-21
申请号:US17608614
申请日:2020-06-18
发明人: Graham Murdoch , Tai Wai Pong , Ganesh Nagendra , Yuxin Sun
IPC分类号: G06K7/10
CPC分类号: G06K7/10356
摘要: An RFID system (200) includes an RFID reader (202), an antenna array (204) and a length compensation unit (215). The RFID reader (202) is configured to interrogate RFID antennas. The antenna array (204) includes two or more RFID antennas (206) connectable to the RFID reader (202) via a series of cable links (208). Each RFID antenna (206) is associated with a respective cable link (208), and each cable link (208) has a cable length. The length compensation unit (215) is associated with each RFID antenna (206), and is configured to adjust a total cable length between the RFID reader (202) and a respective RFID antenna (206) to be an effective cable length.
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公开(公告)号:US20230289719A1
公开(公告)日:2023-09-14
申请号:US18019615
申请日:2021-08-03
发明人: Graham Murdoch , Ganesh Nagendra
IPC分类号: G06Q10/087 , H01Q1/22 , H01Q7/00 , G06K7/10
CPC分类号: G06Q10/087 , H01Q1/2216 , H01Q7/00 , G06K7/10316
摘要: An RFID read antenna assembly (100) for use on a metal substrate (20) is used to read an RFID tag (22) carried by an article (12) positioned relative to the metal substrate. The antenna assembly comprises a high permeability layer (104) mountable to the metal substrate, an elongate carrier (114) mounted to the high permeability layer and defining a longitudinal axis (106), and at least one antenna coil (102) carried by the elongate carrier. The at least one antenna coil has a plurality of uniformly spaced transversely arranged portions (116) defining a sequence of antenna loops (105) of substantially constant width. The width of each antenna loop is substantially the same as the spacing between adjacent transversely arranged portions.
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