Patent ID: 9692875
Date: 2017-06-27
CPC Classifications: H04M

Claim:
1. A non-transitory computer-readable medium comprising code that, when executed by a processor, causes an apparatus to: receive capacitance measurements measured by at least two capacitive sensors of a handheld device, including: (1) left capacitive sensor configured to provide capacitance measurements related to a first portion of a hand adjacent to the left side of the handheld device and (2) right capacitive sensor configured to provide capacitance measurements related to a second portion of the hand adjacent to the right side of the handheld device; and determine a type of grip of the hand on the handheld device based on the capacitance measurements, wherein the capacitance measurements include a differential capacitance measurement between the left capacitive sensor and the right capacitive sensor, a single-ended capacitance measurement of the left capacitive sensor, and a single-ended capacitance measurement of the right capacitive sensor; and apply a predetermined algorithm, wherein applying the predetermined algorithm comprises: wherein the magnitude of the differential capacitance measurement and the sum are used by the algorithm to determine the type of grip, and wherein the type of grip specifies placements of the palm, digits, and thumb on the handheld device in a particular configuration.