Bi-directional universal serial bus booster circuit
US7474117B1 · kind B1 · utility
7Cited by
4References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 2008 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | May 27, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4072
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of transmitting a signal on a bi-directional universal serial bus (“USB”) circuit for boosting a signal on a USB bus disclosed. The circuit includes a first stage inverting buffer coupled to a second stage inverting buffer to form a non-inverting buffer circuit. A high pass filter is coupled in series with the non-inverting buffer circuit to provide AC coupling to the USB bus and to allow fast signal edges through the circuit. The booster circuit is arranged to improve signal quality over a USB bus to allow additional USB devices and longer USB busses to be utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.