Hand held digitizer

Details Hand held digitizer Hand held digitizer

1990-03-06

1992-07-21

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340706, 178 18, 33 1M, G09G 302

Patent

active

051326736

ABSTRACT:
A digitizer for digitizing a trace on a two-dimensional surface, in which the surface is defined by a longitudinal Y direction and a transverse X direction. The digitizer includes a frame mounted on at least three wheels such that the frame is movable only along the Y direction, a cursor mounted on the frame such that the cursor moves in relation to the frame in the X direction; a rotary optical encoder for determining the direction and amount of movement of at least one of the wheels; a pair of linear optical encoders for determining the direction and amount of movement of the cursor; and electronic circuits, including a microcomputer unit, for receiving information from the optical encoders which is indicative of the X and Y position of the cursor and for transmitting data, serially, to a host computer. The information may then be displayed and processed on a host computer in accordance with known devices.

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Brochure by Tamaya showing Planix 5000 Digitizing Area-Line Meter, undated but no later than Oct., 1989.

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