Boots – shoes – and leggings
Patent
1985-05-30
1987-06-30
Chin, Gary
Boots, shoes, and leggings
340347CC, 340347DA, 364580, H03K 1302
Patent
active
046775811
ABSTRACT:
Analog input/output apparatus includes a plurality of digital to analog converters (18, 20, 22, 24, 26) and a plurality of interfacing means (4, 6, 8, 10, 12, 14, 16) for interfacing the converters with a central processing unit (2). A plurality of current and voltage sources (28, 30, 32, 34, 36, 38, 40, 42) are connected to the converters for providing a plurality of voltage and current stimuli signals and monitor signals. A signal measurement channel (44, 46, 48, 52) is responsive to the monitor signals and is controlled by the interfacing means (4-16), and multiplexers (44, 46) are wrapped around the measurement channel to provide a self-calibration channel (50). The central processing unit is responsive to the self-calibration channel output for determining the correction to be applied to the stimuli signals.
REFERENCES:
patent: 4375072 (1983-02-01), Rice
patent: 4399426 (1983-08-01), Tan
patent: 4551709 (1985-11-01), Merchant et al.
patent: 4587477 (1986-05-01), Hornak et al.
patent: 4607248 (1986-08-01), Botka et al.
Malka Jacob H.
Thurakal Philip J.
Allied Corporation
Chin Gary
Herndon H. R.
Massung Howard G.
Protigal Stanley N.
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