公开(公告)号：US09864882B1

公开(公告)日：2018-01-09

申请号：US14713204

申请日：2015-05-15

申请人： GEOTOLL INC.

发明人： Wyatt D. Geist ,  Jaime A. Borras

IPC分类号： G06K7/10

CPC分类号： G06K7/10158 ,  G06K19/07766 ,  G06Q10/00

摘要： A battery-less RFID tag device with an RFID antenna assembly and RFID transmitter, which harvests power from an RF source is disclosed. The RF source can be a mobile phone, and embedded system, and the like. The RFID device can include an energy harvesting component, an energy conversion component, an energy storing component, a non-transitory memory, a controller, and an RFID transmitting component. The energy harvesting component can inductively harvest energy from RF transmissions, which charges a capacitor to power other RFID device components, including the RFID transmitter. In one embodiment, the battery-less RFID tag device can be utilized in conjunction with a mobile phone for vehicle toll payments, which are RFID based.

公开(公告)号：US09978009B1

公开(公告)日：2018-05-22

申请号：US14713145

申请日：2015-05-15

申请人： GEOTOLL INC.

发明人： Wyatt D. Geist ,  Jaime A. Borras

IPC分类号： G06K19/07 ,  G06K19/077

CPC分类号： G06K19/0727 ,  G06K19/07783 ,  H01Q1/2225 ,  H01Q1/248 ,  H01Q9/285

摘要： An RFID tag device with an RFID antenna assembly that increases transmission range of the RFID tag device when adhesively coupled to a mobile device. The RFID tag device includes a RF interface that operates at a first RF frequency, a controller coupled to the RF interfaces, and the RFID antenna assembly. The RFID antenna assembly includes a first and a second dipole elements, each shaped as a half rectangle with an additional segment joining the respective element to a tuning element. The RFID antenna also includes a tuning element, which is a loop antenna, connecting the RF interface to the controller. A structure of the RF antennal assembly, when the RFID tag device is coupled to a mobile device, causes the mobile device to function as a reflector to increase gain of the RFID antenna assembly thereby improving transmission range.