CAPACITIVE MEASUREMENT PROCESSING FOR MODE CHANGES
First Claim
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1. A processing system for hybrid detection comprising:
- a sensor module coupled to a plurality of sensor electrodes, and configured to;
drive a first subset of the plurality of sensor electrodes with first transmitter signals,receive, corresponding to the first transmitter signals, first resulting signals from a second subset of the plurality of sensor electrodes,receive second resulting signals from the second subset while the second subset are driven with modulated signals; and
a determination module configured to;
determine a first plurality of profiles based on the second resulting signals,segment the first plurality of profiles into one dimensional intervals to obtain a plurality of segments;
determine a plurality of regions of interest using the plurality of segments,determine a set of contiguous regions based on the first resulting signals,select, from the set of contiguous regions, a set of valid contiguous regions using the plurality of regions of interest, andreport positional information for each contiguous region in the set of valid contiguous regions.
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Abstract
Hybrid detection includes determining a first profiles based on multiple capacitive measurements, segmenting the first profiles into one dimensional intervals to obtain multiple segments, determining multiple regions of interest using the segments, and determining a set of contiguous regions based on multiple mutual capacitive measurements. Hybrid detection further includes selecting, from the set of contiguous regions, a set of valid contiguous regions using the regions of interest, and reporting positional information for each contiguous region in the set of valid contiguous regions.
25 Citations
20 Claims
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1. A processing system for hybrid detection comprising:
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a sensor module coupled to a plurality of sensor electrodes, and configured to; drive a first subset of the plurality of sensor electrodes with first transmitter signals, receive, corresponding to the first transmitter signals, first resulting signals from a second subset of the plurality of sensor electrodes, receive second resulting signals from the second subset while the second subset are driven with modulated signals; and a determination module configured to; determine a first plurality of profiles based on the second resulting signals, segment the first plurality of profiles into one dimensional intervals to obtain a plurality of segments; determine a plurality of regions of interest using the plurality of segments, determine a set of contiguous regions based on the first resulting signals, select, from the set of contiguous regions, a set of valid contiguous regions using the plurality of regions of interest, and report positional information for each contiguous region in the set of valid contiguous regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for hybrid detection comprising:
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determining a first plurality of profiles based on a plurality of capacitive measurements; segmenting the first plurality of profiles into one dimensional intervals to obtain a plurality of segments; determining a plurality of regions of interest using the plurality of segments; determining a set of contiguous regions based on a plurality of mutual capacitive measurements; selecting, from the set of contiguous regions, a set of valid contiguous regions using the plurality of regions of interest; and reporting positional information for each contiguous region in the set of valid contiguous regions. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An input device for hybrid detection comprising:
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a plurality of sensor electrodes comprising a first subset and a second subset; and a processing system configured to; determine a first plurality of profiles based on a first plurality of resulting signals obtained based on modulated signals, segment the first plurality of profiles into one dimensional intervals to obtain a plurality of segments; determine a plurality of regions of interest using the plurality of segments, determine a set of contiguous regions based on a second plurality resulting signals obtained by transmitting transmitter signals using the first subset and receiving resulting signals using the second subset, select, from the set of contiguous regions, a set of valid contiguous regions using the plurality of regions of interest, and report positional information for each contiguous region in the set of valid contiguous regions. - View Dependent Claims (20)
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Specification