Communications: radio wave antennas – Antennas – With support for antenna – reflector or director
Reexamination Certificate
2006-07-25
2006-07-25
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
With support for antenna, reflector or director
C343S832000, C343S912000
Reexamination Certificate
active
07081866
ABSTRACT:
The invention relates to a method for displacing a moving plate (20) of a hexapod (100) whose legs (1, 2, 3, 4, 5, 6) are provided with a length adjusting device from an orientation Viwhich is defined by the azimuth-elevation coordinates thereof (αi, βi) towards an orientation Vi+1which is defined by the azimuth-elevation coordinates thereof (αi+1, βi+1), characterized in that it comprises stages wherein: a law is defined which defines an offset distance d according to the orientation of the plate (20); the offset distance corresponding to the orientation Vi+1is determined; the adjustment devices are controlled in order to modify the lengths L1–L6of the legs (1, 2, 3, 4, 5, 6) in order to displace the moving plate (20) from orientation V1to orientation Vi+1and to offset it in relation to the normal on the fixed base (10) of the hexapode (100) via the centre OA of said base (10) on the azimuth plane of Vi+1of the distance d.
REFERENCES:
patent: 4771585 (1988-09-01), Onoda et al.
patent: 5604593 (1997-02-01), McMurtry
patent: 6041500 (2000-03-01), Terpstra
patent: 6542132 (2003-04-01), Stern
Blakely & Sokoloff, Taylor & Zafman
Chen Shih-Chao
IN-SNEC
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