Patent ID: 8638298

Claim:
A mouse comprising: a housing; a container secured in the housing and full of insulative liquid; a sphere suspended in the liquid, the sphere being made of conductive material; a plurality of first sensors and a plurality of second sensors being attached to inner sidewalls of the container, each of the first sensors being a charged contact, each of the second sensors being an uncharged contact, adjacent two of the plurality of first sensors being spaced from each other by a second sensor of the plurality of the second sensors, and adjacent two of the plurality of second sensors being spaced from each other by one of the plurality of the first sensors, when any of the first sensors and any of the second sensors being simultaneously contacted by the sphere, the contacted second sensor being charged; a timing unit configured to time the time, and comprising a pulse circuit and a counter; a processor comprising: a detecting module electrically connected to the second sensors, configured to determine whether any one of the second sensors is charged, direct the timing unit to time the time during the period of any second sensor being charged, and further generate a position signal recording the position of the charged second sensor, and further configured to direct the pulse circuit to generate pulse signals during the period of any one of the second sensor being charged, direct the counter to calculate the number of the pulse signals; a direction determining module configured to determine the movement direction of a cursor according to the position signal generated by the detecting module; a distance determining module configured to determine the movement distance of the cursor according to the time timed by the timing unit and a table, and further configured to determine the movement distance of the cursor according to the number of the pulse signals and a first table, the first table comprising a first column recording the number of the pulse signals, and a second column recording the movement distance of the cursor, the movement distance corresponding to a number of pixels, each one of pulse signals corresponding to one movement distance of the cursor; and an executing module configured to generate cursor control signal for controlling movement of the cursor according to the determined movement direction and the determined movement distance.