Method and apparatus for position determination

Details Method and apparatus for position determination Method and apparatus for position determination

1990-03-19

1991-04-23

Schreyer, Stafford D.

Telegraphy

Systems

Position coordinate determination for writing

367907, G08C 2100

Patent

active

050092774

ABSTRACT:
A form of the disclosed invention employs data validation and screening based on the proximity of sequentially measured data points. Another form of the invention detects noisy conditions manifested in a pilot signal measurement, and discards data taken just after (and/or, if desired, just before) detection of the condition.

REFERENCES:
patent: 3626483 (1971-12-01), Whetstone et al.
patent: 3647962 (1972-03-01), Whetstone
patent: 3838212 (1974-09-01), Whetstone et al.
patent: 4012588 (1977-03-01), Davis et al.
patent: 4124838 (1978-11-01), Kiss
patent: 4317005 (1982-02-01), de Bruyne
patent: 4886943 (1989-12-01), Suzuki et al.
patent: 4891474 (1990-01-01), Kelly

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