Apparatus for synchronizing clock signals
US4999526A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1989 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jul 25, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0337
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Apparatus for synchronizing a clock signal to a pulse comprises a clock signal generator (1) for generating a first clock signal having a frequency equal to that of a desired clock signal. A delay circuit (2) to which the first clock signal is fed generates a number of time delayed versions of the first clock signal, each time delay being less than the period of the first clock signals. Logic (9) compares the time delayed versions of the first clock signal and the original clock signal at the time of occurrence of the pulse and selects as the desired clock signal, a version of the first clock signal which has changed state close to the time of occurence of the pulse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.