Low-noise biopotential acquisition system for dry electrode application
AssigneeMediatek Inc.
InventorChih-Hsin Chen
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Abstract
The present invention provides a circuitry of a biopotential acquisition system, where the circuitry includes an input node, an ETI transmitter, a capacitor and an ETI receiver. The input node is configured to receive an input signal from an electrode of the biopotential acquisition system. The ETI transmitter is configured to generate a transmitter signal. A first node of the capacitor is coupled to the ETI transmitter, and a second node of the capacitor is coupled to the input node. The ETI receiver is coupled to the input node, and is configured to receive the transmitter signal via the capacitor to generate an ETI.
Claims9
A circuitry of a biopotential acquisition system, comprising:
- an input node, configured to receive an input signal from an electrode of the biopotential acquisition system;
- an electrode-tissue impedance (ETI) transmitter, configured to generate a transmitter signal;
- a capacitor, wherein a first node of the capacitor is coupled to the ETI transmitter, and a second node of the capacitor is coupled to the input node;
- and
- an ETI receiver, coupled to the input node, configured to receive the transmitter signal via the capacitor to generate an ETI.
Dependencies are inferred from the claim text.