Precision digital phase shift element
US5650738A · kind A · utility
4Cited by
3References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 21, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Dec 21, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/285
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A precision digital phase shift element for achieving precise phase shift of an input pulse train signal. The output is a pulse train at a frequency equal to the input signal frequency divided by N, and having N equally spaced phase states. The relative phase state of the output signal is reliably controlled by selective deletion of pulses from the input signal pulse train. The selective deletion can be achieved by selectively gating the input pulse train, or by use of a dual modulus frequency divider circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.