Method and apparatus for monitoring universal serial bus activity
US6119194A · kind A · utility
40Cited by
7References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1998 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Mar 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A USB host controller provides transaction type status signals indicating USB activity type. The status signals include a bulk status bit signal indicative of bulk activity on a USB, a control status bit signal indicative of control activity on the USB, an isochronous status bit signal indicative of isochronous activity on the USB and an interrupt status bit signal indicative of an acknowledged interrupt on the USB. In addition a programmable mask register is provided for masking any or all of the status bits. The status bits may be combined and provided as a single signal indicative of USB activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.