Coordinate input apparatus

Details Coordinate input apparatus Coordinate input apparatus

1993-09-30

1996-01-16

Chin, Stephen

Telegraphy

Systems

Position coordinate determination for writing

345177, C08C 2100

Patent

active

054849675

ABSTRACT:
Some components of a vibration input to an input guarantee region on a vibration transmission plate directly reach a vibration sensor, but some other components are reflected by the end portion of the vibration transmission plate, and then reach the vibration sensor. A vibration suppressor is attached to a peripheral edge of the vibration transmission plate, and is located along the path of the vibration reflected by the end portion of the vibration transmission plate to the vibration sensor. Since the vibration sensor is attached to a corner portion of the vibration transmission plate where no vibration suppressor is attached, a decrease in coordinate detection precision caused by reflected waves can be suppressed, and a compact apparatus can be realized.

REFERENCES:
Patent abstracts of Japan, vol. 013, No. 257, Kokai 1-214921 (Yoshimura et al.), Aug. 1989.

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