Digitally controlled adaptive slew rate delta modulator
US5208595A · kind A · utility
5Cited by
12References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Aug 21, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M3/022
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A delta modulator automatically adjusting the slewing rate is disclosed. In the absence of a transition in the output data of a delta modulator, the current used for the integrator of the delta modulator is increased. When the comparator of the modulator indicates that the feedback signal of the modulator has overshot the input signal, the current is decreased or reversed until the two signals are approximately equal as signalled by a 50% duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.