Cordless pointing apparatus

Details Cordless pointing apparatus Cordless pointing apparatus

1992-10-05

1995-11-21

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345157, G09G 302

Patent

active

054691931

ABSTRACT:
A cordless peripheral pointing apparatus selects a position for transmission to a processing system. The apparatus comprises a hand-held pointer including a transmitter continually transmitting a through-the-air signal. A fixed base unit is positioned in proximity to the pointer and includes a receiver receiving the through-the-air transmitted signal, a processor for processing the received signal to determine position of the pointer relative to the fixed receiver in response to the received signal, and transmitter for transmitting information representing the determined position to a processing system.

REFERENCES:
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patent: 3710122 (1973-01-01), Burcher et al.
patent: 4209255 (1980-06-01), Heynau et al.
patent: 4550250 (1985-10-01), Mueller et al.
patent: 4578674 (1986-03-01), Baker et al.
patent: 4654648 (1987-03-01), Herrington et al.
patent: 4688933 (1987-08-01), Lapeyre
patent: 4939508 (1990-07-01), Lawrence et al.
patent: 4978861 (1990-12-01), Sabater et al.
patent: 5166668 (1992-11-01), Aoyagi

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