BASELINE UPDATE FOR INPUT OBJECT DETECTION
First Claim
Patent Images
1. A processing system comprising:
- a sensor circuitry coupled to a plurality of sensor electrodes, and configured to;
drive the plurality of sensor electrodes, andacquire, from the plurality of sensor electrodes and based on driving the plurality of sensor electrodes, a plurality of resulting signals of a sensing region; and
a processing circuitry configured to;
determine a first plurality of raw measurements from the plurality of resulting signals,obtain a masked region of the sensing region based on the first plurality of raw measurements,generate a baseline update value using a subset of the first plurality of raw measurements corresponding to an unmasked region of the sensing region, the unmasked region and the masked region being concurrently existing locations in the sensing region,update a baseline value of the masked region using the baseline update value to obtain an updated baseline, anddetect a location of an input object using the updated baseline.
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Abstract
Baseline update for input object detection includes determining raw measurements from resulting signals acquired for a sensing region, obtaining a masked region of the sensing region based on the raw measurements, and generating a baseline update value using a subset of the raw measurements corresponding to an unmasked region. A baseline value of the masked region is updated using the baseline update value to obtain an updated baseline. A location of an input object is detected using the updated baseline.
5 Citations
20 Claims
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1. A processing system comprising:
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a sensor circuitry coupled to a plurality of sensor electrodes, and configured to; drive the plurality of sensor electrodes, and acquire, from the plurality of sensor electrodes and based on driving the plurality of sensor electrodes, a plurality of resulting signals of a sensing region; and a processing circuitry configured to; determine a first plurality of raw measurements from the plurality of resulting signals, obtain a masked region of the sensing region based on the first plurality of raw measurements, generate a baseline update value using a subset of the first plurality of raw measurements corresponding to an unmasked region of the sensing region, the unmasked region and the masked region being concurrently existing locations in the sensing region, update a baseline value of the masked region using the baseline update value to obtain an updated baseline, and detect a location of an input object using the updated baseline. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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determining a first plurality of raw measurements from a plurality of resulting signals acquired for a sensing region; obtaining a masked region of the sensing region based on the first plurality of raw measurements; generating a baseline update value using a subset of the first plurality of raw measurements corresponding to an unmasked region of the sensing region, the unmasked region and the masked region are concurrently existing locations in the sensing region; updating a baseline value of the masked region using the baseline update value to obtain an updated baseline; and detecting a location of an input object using the updated baseline. - View Dependent Claims (11, 12, 13, 14)
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15. An input device comprising:
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a plurality of sensor electrodes; and a processing system operatively connected to the sensor electrodes and configured to; drive the plurality of sensor electrodes, acquire, from the plurality of sensor electrodes and based on driving the plurality of sensor electrodes, a plurality of resulting signals of a sensing region, determine a first plurality of raw measurements from the plurality of resulting signals, obtain a masked region of the sensing region based on the first plurality of raw measurements, generate a baseline update value using a subset of the first plurality of raw measurements corresponding to an unmasked region of the sensing region, the unmasked region and the masked region are concurrently existing locations in the sensing region, update a baseline value of the masked region using the baseline update value to obtain an updated baseline, and detect a location of an input object using the updated baseline. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification