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Issue No. 06 - June (1970 vol. 19)
ISSN: 0018-9340
pp: 546-548
An inexpensive computer graphical input device giving Cartesian coordinates with better than 1-mm resolution is described. The technique works equally well for two-or three-dimensional input variants of the device.
Digital stylus, graphical input, sonic pen, three-dimensional input, two-dimensional input.
P. de Bruyne, A.E. Brenner, "A Sonic Pen: A Digital Stylus System", IEEE Transactions on Computers, vol. 19, no. , pp. 546-548, June 1970, doi:10.1109/T-C.1970.222973
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