CAPACITIVE TOUCH SENSING WITH LUMPED SENSORS

CAPACITIVE TOUCH SENSING WITH LUMPED SENSORS

In an embodiment, a touch sensing circuit comprises a plurality of sensor channels and a controller circuit coupled to the plurality of sensor channels. The controller circuit is configured to: map the sensor channels to lumped sensors; scan, during a scan period, the lumped sensors to detect touch...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUBRAMANIAN Ramaprasad, WHELAN Rian, CLEARY Feargal
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:In an embodiment, a touch sensing circuit comprises a plurality of sensor channels and a controller circuit coupled to the plurality of sensor channels. The controller circuit is configured to: map the sensor channels to lumped sensors; scan, during a scan period, the lumped sensors to detect touch input; and responsive to detecting touch input associated with at least one of the lumped sensors, scan the sensor channels mapped to the at least one lumped sensor.