专利名称:Data storage device and control method for
power-save modes thereof
发明人:Hiroshi Oshikawa,Daisuke
Kawamata,Hirofumi Saitoh,Tsuguaki Kowa
申请号:US11285929申请日:20051123
公开号:US20060129703A1公开日:20060615
专利附图:
摘要:Embodiments of the invention realize a power-save mode which preventsreduction in performance of a data storage device. The HDD as an embodiment of the
present invention, upon receiving a request for switching to a power-save mode (PMREQ)from the host, judges whether the serial interface should be switched to the power-savemode based on the execution status of the command. When the HDD has determinednot to switch the serial interface to the power-save mode, the HDD transmits a negativeresponse (PMNACK) to the host and keep the serial interface in the active mode. Bydenying switching to a power-save mode when data transfer is executed within a shortperiod of time, etc., it is possible to prevent reduction in performance of the data storagedevice.
申请人:Hiroshi Oshikawa,Daisuke Kawamata,Hirofumi Saitoh,Tsuguaki Kowa
地址:Kanagawa JP,Kanagawa JP,Kanagawa JP,Kanagawa JP
国籍:JP,JP,JP,JP
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