US 10,884,152 B2 · Grip sensing method and apparatus

Abstract

Disclosed herein are grip sensing method and apparatus. The grip sensing method includes generating a sensing count by differentially amplifying a voltage potential of a grip channel based on a predetermined correction offset and performing digital conversion, comparing the sensing count with a predetermined base value to determine whether a touch condition is satisfied, performing baseline tracking for determining a baseline count based on the sensing count when the sensing count is less than the base value and the touch condition is not satisfied, stopping the baseline tracking and performing temperature compensation with respect to the baseline count using a temperature sensor mounted therein when the sensing count is equal to or greater than the base value and the touch condition is satisfied, and sensing an event based on the sensing count and the temperature-compensated baseline count.

Claims20

Dependent claims

A grip sensing method comprising:

generating a sensing count by differentially amplifying a voltage potential of a grip channel based on a predetermined correction offset and performing digital conversion;
comparing the sensing count with a predetermined base value to determine whether a touch condition is satisfied;
performing baseline tracking for determining a baseline count based on the sensing count when the sensing count is less than the base value and the touch condition is not satisfied;
stopping the baseline tracking and performing temperature compensation with respect to the baseline count using a temperature sensor mounted therein when the sensing count is equal to or greater than the base value and the touch condition is satisfied;
and
sensing an event based on the sensing count and the temperature-compensated baseline count.

3 more elements

A grip sensing apparatus comprising:

an amplifier configured to differentially amplify a voltage potential of a grip channel based on a predetermined correction offset;
an analog-to-digital converter configured to perform digital conversion with respect to output of the amplifier to generate a sensing count;
a comparator configured to compare the sensing count with a predetermined base value;
a baseline tracking unit configured to determine a baseline count based on the sensing count when the sensing count is less than the base value as a result of comparison by the comparator;
a temperature compensator configured to stop the baseline tracking and perform temperature compensation with respect to the baseline count using a temperature sensor mounted therein, when the sensing count is equal to or greater than the base value as a result of comparison by the comparator;
and
a sensing unit configured to sense an event based on the sensing count and the temperature-compensated baseline count.

4 more elements

Dependencies are inferred from the claim text.

Grip sensing method and apparatus

Life of this patent

Grip sensing method and apparatus

Life of this patent

Abstract

Claims20