Wireless pen-type input device for use with a computer

Details Wireless pen-type input device for use with a computer Wireless pen-type input device for use with a computer

1991-04-10

1992-11-24

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

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

340707, G09G 302

Patent

active

051666685

ABSTRACT:
A wireless input device for computer comprises a pen-type input device having a source of light capable of transmitting pulses. Two light receiving elements are provided and these light receiving element are disposed for detecting an incident angle of light inputted from the source of light. The wireless input device also has an input unit body having an operational unit for calculating the position of the pen-type input device from the amounts of light detected by the two light receiving elements.

REFERENCES:
patent: 4550250 (1985-10-01), Mueller et al.
patent: 4578674 (1986-03-01), Baker et al.
patent: 4682159 (1987-07-01), Davison
patent: 4688933 (1987-08-01), Lapeyre
patent: 4949080 (1990-08-01), Mikau

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