Patent ID: 8614676

Claim:
A method of controlling a virtual object on a display of an electronic device by finger motion of a user without touching said display of said electronic device comprising: providing a housing to receive a finger motion detecting device attached to an upper surface of said housing for detecting motion of a user finger wherein said finger motion detecting device is not on said display of the electronic device; a controller received in said housing for generating a control signal; a communication interface for connecting between said finger motion detecting device and said electronic device; detecting said finger motion by said finger motion detecting device to generate a first control signal; providing vocal control through a microphone and vocal control software of said electronic device to output a second control signal through voice recognition; controlling said virtual object displayed on said display in response to said first or second control signal or a combination thereof through said communication interface without touching said display of said device; and wherein said finger motion device includes a CMOS or CCD sensor, and said finger motion detecting further includes a step of capturing an image of said finger, followed by analysis of image change of said finger motion by said CMOS or CCD sensor.