Software controlled adaptive delta modulator
US5457714A · kind A · utility
23Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1992 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Oct 13, 2012 |
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, a parameter 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 parameter 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.