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2. 发明申请

WO2019048539A1 A RECEIVER DEVICE FOR TOUCH COMMUNICATION 审中-公开
公开(公告)号：WO2019048539A1
公开(公告)日：2019-03-14
申请号：PCT/EP2018/073990
申请日：2018-09-06
申请人： ETH ZURICH
发明人： MAGNO, Michele
IPC分类号： H04B13/00 , H02J50/00
摘要： According to the present invention there is provided a receiver device comprising, a first electrode (3) which can capacitive couple to an electrode of a transmitter device; a second electrode (5) which can capacitive couple to said electrode of said transmitter device; an energy harvesting circuit (7), which comprises a first capacitor (9), wherein said first electrode (3) is electrically connected to the energy harvesting circuit (7) so that energy from a signal which was transmitted from the electrode of the transmitter device and received at the first electrode (3), can be used to increase voltage across the first capacitor (9); and a comparator (15), wherein the first capacitor (9) is electrically connected to a positive supply input terminal (15c) of the comparator (15) so that voltage across the first capacitor (9) can be used to power the comparator (15); a demodulator circuit (11) wherein said second electrode (5) is electrically connected to the demodulator circuit (11); a first filter circuit (17), which comprises a second capacitor (32), which is electrically connected to an output (11b) of the demodulator circuit (11), so that energy from a signal which was transmitted from the electrode of the transmitter device and received at the second electrode (5) can be use to increase voltage across the second capacitor (32); wherein an output (11b) of the demodulator circuit (11) is electrically connected to a second input terminal (15b) of the comparator (15); and wherein the second capacitor (32) is electrically connected to a first input terminal (15a) of the comparator (15) so that the voltage across the second capacitor (32) defines a reference voltage at the first input terminal (15a) of the comparator 15; a second filter circuit (47) for filtering signals provided at an output terminal (15e) of the comparator (15). There is further provided an assembly which includes said receiver device, and a method of communication between a transmitter and the receiving device.

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