Method and apparatus for reducing microprocessor speed requirements in data acquisition applications
US6507799B2 · kind B2 · utility
8Cited by
32References
24Claims
0Family size
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Key dates
| Filing date | Feb 26, 2001 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06F2103/46
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method and apparatus for improving microprocessor data acquisition. Noise in analog signals is removed by a low pass filter with a variable cutoff frequency controlled to cut off all frequencies above a frequency range of interest. The filtered signal is sampled by an analog-to-digital converter at a sampling rate which is variable and controlled to sample at a rate that is at least two times the low pass filter cutoff frequency thereby reducing the rate at which data is passed to a microprocessor and reducing the need for speed in the microprocessor's processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.