Method for detecting tracks of touch inputs on touch-sensitive panel and related computer program product and electronic apparatus using the same

An electronic apparatus, comprising:

• a touch-sensitive panel;
• and
• a processor, coupled to the touch-sensitive panel, for detecting M touch positions of M touch inputs on the touch-sensitive panel during a first period, and for detecting N touch positions of N touch inputs on the touch-sensitive panel during a second period, wherein M and N are positive integers and M is less than or equal to N;
• the processor is further used for selecting a specific touch input from the M touch inputs, wherein the specific touch input corresponds to a specific touch position of the M touch positions;
• and the processor is further used for determining a track of the specific touch input on the touch-sensitive panel according to N distances that are between the specific touch position and the N touch positions respectively.

A computer program product, having program instructions used for executing the following steps:

• during a first period, detecting M touch positions of M touch inputs on the touch-sensitive panel;
• during a second period, detecting N touch positions of N touch inputs on the touch-sensitive panel, wherein M and N are positive integers and M is less than or equal to N;
• selecting a specific touch input from the M touch inputs, wherein the specific touch input corresponds to a specific touch position of the M touch positions;
• and
• determining a track of the specific touch input on the touch-sensitive panel according to N distances that are between the specific touch position and the N touch positions respectively.

An apparatus for detecting tracks of touch inputs on a touch-sensitive panel, comprising:

• a first means, for detecting M touch positions of M touch inputs on the touch-sensitive panel during a first period, and for detecting N touch positions of N touch inputs on the touch-sensitive panel during a second period, wherein M and N are positive integers and M is less than or equal to N;
• a second means, for selecting a specific touch input from the M touch inputs, wherein the specific touch input corresponds to a specific touch position of the M touch positions;
• and
• a third means, for determining a track of the specific touch input on the touch-sensitive panel according to N distances that are between the specific touch position and the N touch positions respectively.