Patent · US Active

Serial advanced technology attachment device presence detection and hot-plug in low power mode

US7565457B2 · kind B2 · utility

9Cited by

3References

24Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Eng Hun Ooi · Bukit Mertajam, MY
Fei Deng · Folsom, US
Jien-Hau Ng · Kuala Kangsar, MY
Serge Bedwani · Folsom, US
Siang Lin Tan · Bukit Mertajam, MY

Key dates

Filing date	Jun 30, 2006
Grant date	Jul 21, 2009
Priority date	—
Expiry date	Jun 26, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG06F13/4081
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, circuit, and system are disclosed. In one embodiment, the method comprises sending a step pulse across a serial advanced technology attachment (SATA) transmission line, determining the length of time the transmission line takes to charge from common mode voltage to supply voltage, and determining whether a device is connected to the SATA transmission line based on the length of the transmission line charge time.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.