IMPLANTABLE DEVICE WITH REMOTE READOUT
First Claim
1. A remotely readable electronic device (10), comprisinga) a resonance circuit (12) with a receiver (L) for taking up RF signals and with a switching system (S1, S2) for selectively setting the resonance circuit to one of at least three given resonance states with different resonance frequencies (ω
-
00, ω
10, ω
01, ω
11);
b) a control unit (13) for controlling the switching system according to a predetermined protocol of data encoding.
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Accused Products
Abstract
The invention relates to a remotely readable electronic device (10), particularly an implantable device, with an O associated reader (20). The device comprises a resonance circuit (12) that can selectively be set into one of at least three different resonance states, wherein this state can wirelessly be sensed by the remote reader. In a particular embodiment, the resonance circuit (12) comprises two capacitors (C1, C2) that can selectively be connected or disconnected to the resonance circuit (12). The reader (20) preferably scans a given frequency range to detect spectral absorption patterns that correspond to certain resonance states of the resonance circuit (12).
8 Citations
10 Claims
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1. A remotely readable electronic device (10), comprising
a) a resonance circuit (12) with a receiver (L) for taking up RF signals and with a switching system (S1, S2) for selectively setting the resonance circuit to one of at least three given resonance states with different resonance frequencies (ω -
00, ω
10, ω
01, ω
11);b) a control unit (13) for controlling the switching system according to a predetermined protocol of data encoding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
00, ω
Specification