Coordinate input apparatus

Details Coordinate input apparatus Coordinate input apparatus

1991-10-17

1993-08-24

Schreyer, Stafford

Telegraphy

Systems

Position coordinate determination for writing

367907, 340706, G08C 2100

Patent

active

052391388

ABSTRACT:
A coordinate input apparatus determines the coordinates of contact of a vibration pen with a vibration transmission plate by detecting vibrations from the pen through a vibration sensor. Constants required for measurement are generated in a constant determination circuit on the basis of vibration cycle measurements and a circuit measures the cycle of the detected vibrations from the vibration sensor using the determined constants. Automatic determination of constants eliminates inaccuracies due to component variations and reduces production costs and maintenance.

REFERENCES:
patent: 4886943 (1989-12-01), Suzuki et al.
patent: 4931965 (1990-06-01), Kaneko et al.

Affiliated with

Also associated with

Rating

Coordinate input apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coordinate input apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coordinate input apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-830770