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Method and system to automatically adjust pointer sensitivity dependent on movement velocity for precisely positioning of the cursor

IP.com Disclosure Number: IPCOM000015108D
Original Publication Date: 2001-Aug-04
Included in the Prior Art Database: 2003-Jun-20
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Abstract

Method and system to automatically adjust pointer sensitivity dependent on movement velocity for precisely positioning of the cursor Disclosed is a method and system to automatically adjust pointer sensitivity dependent on movement velocity for precisely positioning of the cursor on a computer screen. Precisely positioning a cursor by using a pointer device (such as a mouse) often causes problems. Current positioning systems are based on the distance over which the pointing device has been moved. Since the area in which the cursor moves (typically the whole screen) is relatively large compared to the size of objects on the screen, positioning the cursor on these small objects is difficult. This problem will increase as the objects become smaller or the size of the screen increases.

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Method and system to automatically adjust pointer sensitivity dependent on

movement velocity for precisely positioning of the cursor

Disclosed is a method and system to automatically adjust pointer sensitivity dependent on movement velocity for precisely positioning of the cursor on a computer screen.

Precisely positioning a cursor by using a pointer device (such as a mouse) often causes problems. Current positioning systems are based on the distance over which the pointing device has been moved. Since the area in which the cursor moves (typically the whole screen) is relatively large compared to the size of objects on the screen, positioning the cursor on these small objects is difficult. This problem will increase as the objects become smaller or the size of the screen increases.

Logitech* has developed a partial mechanical solution for this problem : place two scrolling wheels or buttons on the mouse, which enables the user to scroll with the wheels or buttons to position the pointer on the screen with more accuracy. It is obvious this solution requires a physical apparatus to solve the problem. The invention which is presented solves the problem with software.

The presented invention tracks the velocity of the mouse for a period of time. This velocity is used to determine if the user requires more sensitivity in positioning the cursor or does not need a change in sensitivity.

Pointer moves

105Table 1:

 - initial upper support value, - increased upper support v...