Phase detector for low power applications
US6806742B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2003 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D13/006
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A low-power phase detector with differential output may comprise a control signal generator. In one embodiment, two cyclic waveforms whose phase relationship is to be measured may be input to a control signal generator. The control signal generator may output a first control signal corresponding to the first cyclic waveform such that the control signal is de-asserted at a specific point with respect to the first cyclic waveform. For example, the control signal may be de-asserted corresponding to the rising edge of the first cyclic waveform. The control signal generator may also output a second control signal corresponding to the second cyclic waveform such that the control signal is asserted at a specific point with respect to the second cyclic waveform. For example, the control signal may be asserted corresponding to the falling edge of the second cyclic waveform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.