Invention Grant
US08417979B2 Method and system for progressive power reduction of inactive device while maintaining ready status with host
有权
同时保持主机准备状态的非活动设备逐渐降低功率的方法和系统
- Patent Title: Method and system for progressive power reduction of inactive device while maintaining ready status with host
- Patent Title (中): 同时保持主机准备状态的非活动设备逐渐降低功率的方法和系统
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Application No.: US12978376Application Date: 2010-12-23
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Publication No.: US08417979B2Publication Date: 2013-04-09
- Inventor: John E. Maroney
- Applicant: John E. Maroney
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: G06F1/32
- IPC: G06F1/32

Abstract:
The embodiments provide a system and method for device power control. In particular, the embodiments enable a device, such as a direct attached storage device coupled to a host, to enter into a mode that consumes less power. In one embodiment, the mode is self-initiated and triggered based on a preset timeout of non-use or other condition. Alternatively, this reduced power mode may be initiated based on a request by the host. During the reduced power mode of operation, the device may continue to appear active or on-line to its host. However, if its non-use persists, the device may employ a progression of power saving actions. If needed by the host, the direct attached storage device is configured to respond as if it were on-line and reverse one or more of the progression of power saving actions.
Public/Granted literature
- US20120166828A1 METHOD AND SYSTEM FOR POWER CONTROL TO MINIMIZE POWER CONSUMPTION Public/Granted day:2012-06-28
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