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A data processing system attached with a data input device for inputting individual data into the system corresponding to the first and the second coordinates of the device under the user^s interaction, the device comprising: generation means for generating a signal indicating the first and second coordinates; low-pass filter means for signal filtering; sampling means for sampling filtered signals at a sampling frequency; which is characterized in that the sampling means comprises: first holding means for holding a first sample related to the first coordinate value; second holding means for holding a second sample related to the second coordinate value; filter control means operative for at least temporarily reducing the cut-off frequency of the filter means to a value substantially lower than the sampling frequency.
TW085101837A1995-02-211996-02-14Data processing system and data input device
TW325546B
(en)