High speed linear half-rate phase detector
US7057418B1 · kind B1 · utility
8Cited by
5References
13Claims
0Family size
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Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R25/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high-speed, half rate phase detector provides an effective solution to the problem of XOR gate response to the minimum width signal precursors (Q1 and Q2) of a phase signal that indicates a phase difference between a data signal and a clock signal by combining the precursor signals in a multiplexer and combining the multiplexed signal with the data signal in an XOR gate. This affords the transition information in the transitions of the precursor signals, which is significant of phase difference, without requiring the XOR gate to respond to the minimum widths of those pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.