Analog to digital conversion using an integrater and a sample and hold circuit
US5172117A · kind A · utility
28Cited by
18References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1989 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Jun 19, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/60
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog to digital signal converter includes an integrator and a sample and hold circuit. Precisely repeatable timing signals for both the integrator and sample and hold circuit are provided by a microprocessor. The device provides low pass filtering without the phase lag normally associated with linear filters. The device allows one set of data to be acquired while the previous set of data is being digitized. The device is especially applicable to analysis of data generated by a spectrophotometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.