Method and apparatus for noise filtering for an input device

Details Method and apparatus for noise filtering for an input device Method and apparatus for noise filtering for an input device

1995-11-15

1998-10-20

Saras, Steven

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

345157, G09G 500, G09G 508

Patent

active

058253513

ABSTRACT:
A method and apparatus in an electronically controlled system such as a portable computer are provided for minimizing effects of noise picked up by an input device such as a touch-sensitive capacitive coupling input pad where a conductive stylus may be used on the pad to control the cursor movement on a display device. The present invention removes the cursor jitters on the display device that is associated with the input device and provides for quick cursor responses corresponding to quick motion input by the conductive stylus on the input pad.

REFERENCES:
patent: 4255617 (1981-03-01), Carau, Sr. et al.
patent: 4454417 (1984-06-01), May
patent: 4680429 (1987-07-01), Murdock et al.
patent: 5012231 (1991-04-01), Felsenstein
patent: 5113042 (1992-05-01), Mletzko
patent: 5272469 (1993-12-01), Memarzadeh
patent: 5326940 (1994-07-01), Doubrava et al.

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