Device for checking the skew between two clock signals
US5498983A · kind A · utility
13Cited by
10References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Sep 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/31725
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device checks the skew between two clock signals among a plurality of clock signals having the same frequency. The two clock signals of each possible pair of clock signals respectively enable two successive flip-flops that are initially set at distinct states. The whole set of the flip-flops is connected in a looped shift register configuration. An alarm signal is provided by an Exclusive-OR gate receiving the outputs of two successive flip-flops of the shift register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.