0818751-A1 is referenced by 32 patents and cites 4 patents.

A method for suppressing noise in a touchpad cursor control device which operates by scanning at one of a plurality of scanning frequencies a number of inputs associated with a touchpad, comprises the steps of measuring the noise level at each one of said plurality of scanning frequencies and setting the scanning frequency of the touchpad cursor control device to the one of the plurality of scanning frequencies having the lowest noise level.

Title
Object position detector with noise suppression feature
Application Number
EP19970304153 19970613
Publication Number
0818751 (A1)
Application Date
June 13, 1997
Publication Date
January 14, 1998
Inventor
Leroy Lieven P
US
Gillespie David W
US
Allen Timothy P
US
Pritchard Jeffrey O
US
Assignee
Synaptics
US
IPC
G06K 11/16
G06F 03/041
G06F 03/033
G06F 03/044
G06F 03/033
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