USB controller with automatic clock generation and method thereof
US10031881B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2017 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Apr 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0042
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A USB controller with automatic clock generation comprising: an oscillating generator is used for generating an initial clock; a first phase locked loop is used for receiving the initial clock and outputting a controller operating clock having a first frequency; a controller is used for detecting at least one universal serial bus device and outputting an initial frame signal having a second frequency; a second phase lock loop is used for receiving the initial frame signal and outputting a sync frame signal having the first frequency; a third phase lock loop for receiving the sync frame signal and outputting a stabilizing frame signal having the first frequency; and a multiplexer is used for receiving the controller operating clock and the stabilizing frame signal and transmitting the controller operating clock or the stabilizing frame signals to the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.