Process control transmitter with adaptive analog-to-digital converter
US5909188A · kind A · utility
15Cited by
11References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Feb 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/462
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transmitter for use in a process control setting includes a sensor adapted to couple to a process and provide a sensor output related to a parameter of the process. A modulator coupled to the sensor output responsively provides a digital bit stream output representative of the sensor output. A filter provides a current decimation output. A comparator compares a previous decimation output with the current decimation output. Circuitry is provided for transmitting an output related to the parameter based upon the current decimation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.