Boots – shoes – and leggings
Patent
1996-04-11
1996-11-26
Voeltz, Emanuel T.
Boots, shoes, and leggings
364481, 364487, 371 221, G01R 19145
Patent
active
055792367
ABSTRACT:
A voltage/current measuring unit includes a signal generating source having a digital error detecting unit and a digital-to-analog converter (DAC) connected in series, a current measuring resistor having first and second terminals respectively connected to an output terminal of the signal generating source and a connection terminal, a voltage measuring circuit connected to the digital error detecting unit for measuring a voltage at said second terminal of the current measuring resistor and for providing a voltage feedback signal to the signal generating source, a current measuring circuit connected to the digital error detecting unit for measuring a voltage across the first and second terminals of the current measuring resistor, and for providing a current feedback signal to said signal generating source, the voltage measuring circuit and current measuring circuit both include analog-to-digital converters for respectively converting a voltage appearing at the second terminal of the current measuring resistor and a voltage appearing across the first and second terminals of the current measuring resistor into digital voltage values that are fed to the signal generating source.
REFERENCES:
patent: 4637020 (1987-01-01), Schinabeck
patent: 4646299 (1987-02-01), Schinabeck et al.
patent: 5146224 (1992-09-01), Kitayoshi
patent: 5243344 (1993-09-01), Koulopoulos et al.
patent: 5298859 (1994-03-01), McEachern et al.
patent: 5298898 (1994-03-01), Brunheim
patent: 5301072 (1994-04-01), Wilson
patent: 5325051 (1994-06-01), Germer et al.
Hewlett Packard Operation and Service Manual "Model 4145A--Semiconductor Parameter Analyzer" Yokogawa-Hewlett-Packard, Ltd. 1982, pp. 8-104-8-112.
"Intelligent Instrument Streamlines dc Semiconductor Parameter Measurements", K. Maeda, et al., Hewlett-Packard Journal, Oct. 1982, pp. 3-20.
Tamamura Toshio
Tanida Shinichi
Hewlett--Packard Company
Voeltz Emanuel T.
Wachsman Hal D.
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