In-phase and quadrature sampling circuit
US5621345A · kind A · utility
50Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Apr 15, 1997 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D7/165
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit that provides samples of in-phase and quadrature components of an input waveform includes an oversampling ADC that receives the input waveform and converts the input waveform to digital samples at an oversampling rate. A first digital filter, coupled to the ADC, receives the digital samples from the ADC and provides the in-phase component samples of the input waveform. A second digital filter, coupled to the ADC, receives the digital samples from the ADC and provides the quadrature component samples of the input waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.