Patent ID: 8732623

Claim:
One or more processor-accessible memory devices comprising processor-executable instructions that, when executed, direct a device to perform actions comprising: detecting a head of a user and a mouth of the user; detecting movement of the mouth from a first position to a second position, the first position being a closed mouth position and the second position being an open mouth position, wherein an upper lip of the mouth and a lower lip of the mouth are moved apart by at least a threshold distance; in response to the detecting the movement of the mouth from the first position to the second position, creating a start point of a character stroke on a display; detecting horizontal movement of the head; in response to the detecting of the horizontal movement of the head, extending the character stroke horizontally on the display; detecting vertical movement of the head; in response to the detecting of the vertical movement of the head, extending the character stroke vertically on the display; detecting diagonal movement of the head; in response to the detecting of the diagonal movement of the head, extending the character stroke diagonally on the display; detecting movement of the mouth from the second position to the first position; in response to detecting the movement of the mouth from the second position to the first position, creating an end point of the character stroke on the display; detecting a voice of the user; and in response to the detecting the voice of the user, extending a length of at least one character stroke based on the voice of the user.