Boots – shoes – and leggings
Patent
1991-06-03
1992-12-08
Malzahn, David H.
Boots, shoes, and leggings
G06F 1531
Patent
active
051703688
ABSTRACT:
A digital decimation filter including: a shift register array having N shift registers connected to each other is series for storing an input data at every input sampling interval, a switch circuit for selecting signals from output signals respectively outputted from the N shift registers, a conversion circuit for linearly converting a signal being inputted to the shift register array and the signals selected by the switch circuit into a single signal, and an accumulative addition circuit for integrating the single signal repeatedly a predetermined number of times. The switch circuit selects M signals S.sub.n, S.sub.2n, . . . , S.sub.Mn from the output signals S.sub.1, S.sub.2, . . . , S.sub.n of the N shift registers when a decimation ratio indicative of a ratio of an input sampling frequency to an output sampling frequency is n, where N, M and n are integers satisfying an inequality N.gtoreq.M.times.n.
REFERENCES:
patent: 4819252 (1989-04-01), Christopher
patent: 4972360 (1990-11-01), Cukier et al.
patent: 5018090 (1991-05-01), Shiratsuchi
patent: 5051981 (1991-09-01), Kline
Malzahn David H.
Sharp Kabushiki Kaisha
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