Patent · US Active

Providing power to an accessory during portable computing device hibernation

US8756445B2 · kind B2 · utility

6Cited by

40References

26Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Robert J. Walsh · Sunnyvale, US
Jeff Terlizzi · Sunnyvale, US
Jahan Minoo · San Jose, US
Lawrence G. Bolton · Fremont, US

Key dates

Filing date	Jun 3, 2010
Grant date	Jun 17, 2014
Priority date	—
Expiry date	Apr 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F1/3209
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A portable computing device (PCD) can selectively supply power to an accessory during PCD hibernation. In some embodiments, the PCD's default behavior is to disable accessory power output during hibernation, and this default behavior can be overridden in response to a request from a connected accessory. The accessory can use the power supplied during PCD hibernation to detect user input (or other) events and wake the PCD from hibernation in response to a detected event. Some accessories can wake the PCD by emulating accessory detachment and reattachment.

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