In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the...http://www.google.com/patents/US7747885?utm_source=gb-gplus-sharePatent US7747885 - Electronic device with serial ATA interface and power saving method for serial ATA buses
