Invention Grant
- Patent Title: Managing and revoking power allocated through bus interfaces
- Patent Title (中): 管理和撤销通过总线接口分配的电力
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Application No.: US13629385Application Date: 2012-09-27
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Publication No.: US09529398B2Publication Date: 2016-12-27
- Inventor: Fernando A. Urbina , J. Rhoads Hollowell, II , Steven Lee , Steven J. Sfarzo , Paul M. Thompson
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Blank Rome LLP
- Main IPC: G06F1/26
- IPC: G06F1/26 ; G06F1/32 ; G06F1/00

Abstract:
The disclosed embodiments provide a system that manages power allocated through a set of bus interfaces on a computer system. During operation, the system obtains a first request for revocable current beyond a reserved current for a first bus interface from the set of bus interfaces, wherein the request is associated with a first device connected to the first bus interface. Next, the system allocates the revocable current to the first bus interface from an extra-current budget for the set of bus interfaces. Upon detecting a connection of a second device that requires non-revocable current over the extra-current budget to a second bus interface from the set of bus interfaces, the system transmits a first notification to the first device to relinquish the revocable current. Finally, the system allocates the non-revocable current to the second device from the relinquished revocable current.
Public/Granted literature
- US20140075212A1 MANAGING AND REVOKING POWER ALLOCATED THROUGH BUS INTERFACES Public/Granted day:2014-03-13
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