US 9,791,978 B2 · Optical touch module for sensing touch object and touch detecting method thereof

Abstract

An optical touch module and a touch detecting method thereof are provided. The optical touch module includes a plurality of sensing components, at least one carrier component and a control unit. The sensing components are configured to sense a touch object located on a touch plane. The carrier component carries and rotates at least one of the sensing components to change sensing directions of the sensing components relative to the touch plane. The control unit is coupled to the sensing components and the carrier component and divides the touch plane into a plurality of regions based on the sensing components. The control unit controls the rotation of the carrier component to change the sensing direction of the at least one sensing component, such that the sensing components sense the regions. The control unit calculates a coordinate of the touch object according to sensing results of the sensing components.

Claims15

Dependent claims

An optical touch module, comprising:

two or more sensors, configured to sense a touch object on a touch plane, wherein a distance between any two of the two or more sensors is pre-defined and fixed;
at least one carrier configured to carry and rotate at least one of the sensors to change a sensing direction of the at least one sensor relative to the touch plane while sensing the touch object;
and
a controller electrically connected to the at least one carrier and the sensors,
wherein the controller divides up and defines the touch plane into a plurality of regions based on the sensors, controls rotation of at least one of the at least one carrier to change the sensing direction of the at least one sensor carried by the carrier while sensing the touch object, such that the sensors dynamically and automatically sense the regions alternately to obtain a plurality of sensing results, and calculates a coordinate of the touch object in the touch plane according to the sensing results.

2 more elements

A touch detecting method of an optical touch module, wherein the optical touch module comprises two or more sensors and at least one carrier, a distance between any two of the two or more sensors is pre-defined and fixed, the at least one carrier carries at least one of the sensors to change a sensing direction of the at least one of the sensors relative to a touch plane while performing sensing the touch object, the touch detecting method comprising:

dividing up and defining the touch plane into a plurality of regions based on the sensors;
rotating at least one of the at least one carrier to respectively change the sensing direction of the at least one of the sensors carried by the at least one carrier while sensing the touch object, such that the sensors alternately sense the regions dynamically and automatically to obtain a plurality of sensing results;
and
obtaining a coordinate of a touch object in the touch plane based on the sensing results.

1 more element

Dependencies are inferred from the claim text.

Optical touch module for sensing touch object and touch detecting method thereof

Life of this patent

Optical touch module for sensing touch object and touch detecting method thereof

Life of this patent

Abstract

Claims15