PHASE COMPENSATION FOR MULTI-STIMULUS CONTROLLER
First Claim
1. A method of determining a compensated phase matrix for a multi-stimulus demodulation process, the method comprising:
- measuring individual phase characteristics of each drive line and sense line combination of a multi-stimulus sensing system, wherein measuring individual phase characteristics includes stimulating a first drive line with a first stimulation signal, receiving, at a plurality of receive channels, sense signals resulting from the stimulation signals, determining the individual phase delays of each pair of first drive line and corresponding sense line; and
forming the compensated phase matrix based on the individual phase characteristics.
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Abstract
Determining a compensated phase matrix for a multi-stimulus demodulation process is provided. A first drive line of a multi-stimulus sensing system is selected, and a stimulation signal is transmitted on the selected drive line. A channel gain resulting from the stimulation signal is measured from a received sense signal resulting from the stimulation signal. The measured channel gain is compared with a known channel gain to obtain an individual phase compensation for the selected drive line. A compensated phase matrix is formed of the individual phase compensation values for multiple drive lines.
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Citations
4 Claims
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1. A method of determining a compensated phase matrix for a multi-stimulus demodulation process, the method comprising:
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measuring individual phase characteristics of each drive line and sense line combination of a multi-stimulus sensing system, wherein measuring individual phase characteristics includes stimulating a first drive line with a first stimulation signal, receiving, at a plurality of receive channels, sense signals resulting from the stimulation signals, determining the individual phase delays of each pair of first drive line and corresponding sense line; and forming the compensated phase matrix based on the individual phase characteristics. - View Dependent Claims (2, 3, 4)
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Specification