Zero-offset phase detector apparatus and method
US11374578B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 6, 2020 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Nov 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/093
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A phase detection circuit includes a first phase detection path having a first input to receive a first signal, and a second input to receive a second signal. Asynchronous transition detection circuitry detects an early/late relationship between the first signal and the second signal when at least one of the first signal and the second signal transitions from a first state to a second state. Output circuitry generates a control signal with a value based on the early/late relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.