Analogue/digital interface circuit
US6993693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Nov 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/318541
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analogue/digital interface circuit is disclosed in which an integral bistable circuit has its state changed by the arrival of an incoming analogue signal, however transient, and irrespective of when it arrives relative to the clock signal driving the digital circuit. The use of a bistable (flip-flop) circuit enables each parth of the interface circuit to be traversed when scan test signals are applied to it. Concurrently with the application of such signals, an inhibition signal is applied to the analogue signal inlet to prevent the arrival of any subsequency analogue signals from changing the state of the signal-storage element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.