Pulse detector for determining phase relationship between signals
US6525520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Apr 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0688
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A pulse detector detects if a clock pulse signal is in phase with a reference clock pulse signal in an efficient manner with very high accuracy. The pulse detector includes a first delay unit adapted to receive an input clock pulse signal and to delay the input clock pulse signal by a first pre-specified delay for output as output clock pulse signal, and a second delay unit adapted to delay the output clock pulse signal by a second pre-specified delay. A sampling unit is adapted to sample the input clock pulse signal and the output of the second delay unit at a sampling time defined by a reference clock pulse signal and to output the samples for phase delay indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.