Boots – shoes – and leggings
Patent
1987-05-26
1989-01-17
Lall, Parshotam S.
Boots, shoes, and leggings
36442601, 324166, 377 24, G01P 336
Patent
active
047991780
ABSTRACT:
A system and method for determining the rotational speed of a rotating member is described that determines speed from signals having a frequency directly proportional to the rotational speed. The speed signals are counted during each of successive sampling intervals. At the end of each sampling interval, the rotational speed is determined based on a calculation interval that is the time interval from the next-to-last speed signal generated in the prior sampling interval to the last speed signal generated and the number of speed signals occurring in the calculation interval. The resulting overlapping calculation intervals minimize the influence of one speed signal on successive determinations of rotational speed.
REFERENCES:
patent: 4485452 (1984-11-01), Cording et al.
patent: 4506339 (1985-03-01), Kuhnlein
patent: 4569027 (1986-02-01), Nakano et al.
patent: 4581713 (1986-04-01), Fennel
patent: 4674049 (1987-06-01), Kubo
Bell Myron H.
Harding Robert L.
Hersberger Jill G.
Spadafora Peter J.
Conkey Howard N.
Delco Electronics Corporation
Goldman David C.
Lall Parshotam S.
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