Controlling a device by tracking movement of hand using acoustic signals

A computer program product for tracking a movement of an object, the computer program product comprising a computer readable storage medium having program code embodied therewith, the program code comprising the programming instructions for:

• receiving acoustic signals from said object using one or more microphones in a device;
• transforming at least a portion of said received acoustic signals into sinusoids whose frequencies are proportional to at least one of the following:
• an angle-of-arrival and a propagation distance of said object;
• deriving a distance profile or an angle-of-arrival-distance profile by evaluating frequencies of said sinusoids;
• estimating an angle of arrival and/or a distance based on said distance profile or said angle-of-arrival-distance profile;
• and
• determining a current location of said object based on said estimated angle of arrival and/or said estimated distance.

A device, comprising:

• a memory for storing a computer program for tracking a movement of an object;
• and
• a processor connected to said memory, wherein said processor is configured to execute the program instructions of the computer program comprising:
• receiving acoustic signals from said object using one or more microphones in a device;
• transforming at least a portion of said received acoustic signals into sinusoids whose frequencies are proportional to at least one of the following:
• an angle-of-arrival and a propagation distance of said object;
• deriving a distance profile or an angle-of-arrival-distance profile by evaluating frequencies of said sinusoids;
• estimating an angle of arrival and/or a distance based on said distance profile or said angle-of-arrival-distance profile;
• and
• determining a current location of said object based on said estimated angle of arrival and/or said estimated distance.