Clock data recovery for automotive vision system
US10749664B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2019 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Mar 16, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0004
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a slicer circuit, a frequency acquisition circuit, a phase acquisition circuit and an oscillator circuit. The slicer circuit may be configured to (i) generate an output signal by slicing a data signal in response to a clock signal and (ii) generate a crossing signal in response to the data signal and the clock signal. The frequency acquisition circuit may be configured to generate a first control signal and a second control signal in response to the data signal and the clock signal. The phase acquisition circuit may be configured to generate a third control signal in response to the first control signal and the data crossing signal. The oscillator circuit may be configured to generate the clock signal in response to the second control signal and the third control signal. The second control signal may shift an adjustable frequency range of the clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.