Non-retriggerable one-shot circuit
US5331208A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1992 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Aug 3, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/0232
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A non-retriggerable one-shot circuit for extracting information representative of a clock having a period T from a sequence of input pulses such that the interval between two consecutive input pulses is either T or T/2 comprises a frequency detector for developing a reference voltage dependent on T, an interval measurement circuit connected to receive the input pulses and developing a voltage dependent on the time that has elapsed since receiving an input pulse, a comparator for comparing the voltage developed by the interval measurement circuit with the reference voltage and providing an output pulse when a predetermined relationship exists therebetween, and an enabling device connected between the input terminal and the interval measurement circuit and responsive to an output pulse for allowing a pulse received at the input terminal to be communicated to the interval measurement circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.