公开(公告)号：JPH0322125A

公开(公告)日：1991-01-30

申请号：JP14885290

申请日：1990-06-08

Applicant: APPLE COMPUTER

Inventor： POORU EMU DONOBUAN ,  SUUII TON CHIA

IPC: G06F3/038 ,  G06F3/023 ,  G06F3/048 ,  G09G5/08

Abstract: PURPOSE: To minimize the movement of a cursor by sampling the parts of an electric signal, which are temporarily discreted, by means of a cursor controller and executing respective samples in the designated section of the function of prediction speed in the movement of the cursor controller. CONSTITUTION: This cursor controller generates the electric signal expressing a position and at least two parts of the electric signal, which is temporarily discreted, are sampled. The respective samples are executed in a designated period and the designated period is the function of prediction speed in the movement of the cursor controller. The sampled parts are compared mutuallyt and with the precedingly sampled electric signal. Comparison is analyzed for deciding whether or not the signal is transmitted to a cursor so as to execute movement in the display of a computer controller. Thus, the 'jitter' of the cursor when the cursor controller is substantially still is minimized.