Invention Grant
US07925799B2 Serial ATA interface control circuit and power management method wherein start and completion of data transfer is monitored during DMA operations using memory control unit
有权
串行ATA接口控制电路和电源管理方法，其中使用存储器控制单元的DMA操作期间监视数据传输的启动和完成
- Patent Title: Serial ATA interface control circuit and power management method wherein start and completion of data transfer is monitored during DMA operations using memory control unit
- Patent Title (中): 串行ATA接口控制电路和电源管理方法，其中使用存储器控制单元的DMA操作期间监视数据传输的启动和完成
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Application No.: US12103937Application Date: 2008-04-16
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Publication No.: US07925799B2Publication Date: 2011-04-12
- Inventor: Takumi Komori
- Applicant: Takumi Komori
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-119906 20070427; JP2008-050961 20080229
- Main IPC: G06F13/18
- IPC: G06F13/18 ; G06F3/06 ; G06F1/32
Abstract:
A serial ATA interface interfaces an ASIC with a HDD. A transfer start monitoring unit monitors start of data transfer between the ASIC and the HDD and a transfer completion monitoring unit monitors completion of the data transfer. A power management control unit controls power consumption of the ASIC and the HDD based on monitoring results obtained from the transfer start monitoring unit and the transfer completion monitoring unit.
Public/Granted literature
- US20080270642A1 INTERFACE CONTROL CIRCUIT, IMAGE PROCESSING APPARATUS, AND POWER MANAGEMENT METHOD Public/Granted day:2008-10-30
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