Patent ID: 9557832
Date: 2017-01-31
CPC Classifications: G06F,G09G

Claim:
1. A cursor control apparatus, adapted to adjust a velocity of a cursor displayed on a benchmark display unit and an extended display unit such that the velocities of the cursor on the extended display unit and the benchmark display unit are substantially equal, the cursor control apparatus comprising: a cursor control unit for generating a displacement value when moved on the benchmark display unit; and a processing unit coupled to the benchmark display unit, the extended display unit, and the cursor control unit to calculate a resolution (dots per inch, DPI) ratio of the extended display unit to the benchmark display unit in a same axial direction, wherein the DPI ratio in the same axial direction comprises a first DPI ratio of the extended display unit to the benchmark display unit in a first axial direction and a second DPI ratio of the extended display unit to the benchmark display unit in a second axial direction; wherein the processing unit multiplies a first displacement value of the cursor control unit in the first axial direction by the first DPI ratio so as to obtain a first modified displacement value in the first axial direction, multiplies a second displacement value of the cursor control unit in the second axial direction by the second DPI ratio so as to obtain a second modified displacement value in the second axial direction, moves the cursor on the extended display unit according to the first and second modified displacement values, and moves the cursor on the benchmark display according to the first and second displacement values, such that the velocities of the cursor on the extended display unit and the benchmark display unit are substantially equal.