发明名称 Software controlled power limiting in USB to SATA bridge
摘要 A Universal Serial Bus (USB) to Serial ATA (SATA) bridge device and method for operating same in a USB connected mass storage subsystem supports software management of power consumption. The USB to SATA bridge estimates power consumption based on known power consumption characteristics of SATA disk drives when performing commands involved in accessing SATA drive, or takes measurements of power consumption during execution of commands to determine when responses to a USB host device are to be delayed. By selectively delaying responses to the USB host device issuing the commands, the USB to SATA bridge manages the rate at which the host issues commands to the USB mass storage subsystem and is thereby able to automatically limit power consumption of the USB mass storage subsystem to that that available over the USB link.
申请公布号 US8924749(B2) 申请公布日期 2014.12.30
申请号 US201012972773 申请日期 2010.12.20
申请人 SMSC Holdings S.A.R.L. 发明人 Intrater Gideon David
分类号 G06F1/32;G06F1/26 主分类号 G06F1/32
代理机构 King & Spalding L.L.P. 代理人 King & Spalding L.L.P.
主权项 1. A method of limiting power consumption of a first device, the first device responsive to commands from a second device, the method comprising: determining a maximum allowable power consumption for the first device; receiving, at the first device from the second device, a command to be performed by the first device; determining an amount of power that would be consumed by the first device during performance of the command; sending, to the second device from the first device, a response to the command wherein the response signals the second device to transmit an additional command to the first device; if the amount of power that would be consumed by the first device during performance of the command would be greater than the maximum allowable power consumption for the first device, adjusting the power consumption of the first device wherein adjusting power consumption of the first device includes delaying the transfer of the response to the command; and performing the command at the first device.
地址 Luxembourg LU