Digital trigger
US4888588A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1988 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Oct 17, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/14
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A digital trigger for a digitizing instrument having multiple analog-to-digital converters employed in interleaved fashion and in which the clock phase and period of a trigger point can be accurately determined. The digital trigger includes a digital comparator for comparing the output signals of each analog-to-digital converter to a trigger threshold level to generate a trigger signal at the output of the comparator if a trigger point occurs on the output signal. The outputs of the collective digital comparators are routed to decoding logic which generates a digital signal that indicates the phase of the clock period in which the trigger point occurred. The outputs of collective digital comparators are also logically ORed together for detecting if a trigger point occurred during a clock period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.