Source: http://www.google.com/patents/US7836319?dq=5631832
Timestamp: 2014-03-13 11:12:44
Document Index: 783433846

Matched Legal Cases: ['art 216', 'art 217', 'art 213', 'art 214', 'art 214', 'art 211', 'art 213', 'art 213', 'art 213', 'Application No. 095127395']

Patent US7836319 - Controlling power supply to a storage device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA power control apparatus includes a driver for controlling an operation of a storage device, a filter driver for monitoring a state of the storage device, and a management program part for controlling a power supply to the storage device. The management program part is configured to output a control...http://www.google.com/patents/US7836319?utm_source=gb-gplus-sharePatent US7836319 - Controlling power supply to a storage deviceAdvanced Patent SearchPublication numberUS7836319 B2Publication typeGrantApplication numberUS 11/459,234Publication dateNov 16, 2010Filing dateJul 21, 2006Priority dateJul 26, 2005Also published asCN1904802A, CN100458653C, EP1748348A2, US20070025195Publication number11459234, 459234, US 7836319 B2, US 7836319B2, US-B2-7836319, US7836319 B2, US7836319B2InventorsJang Geun Oh, Seo Kwang KimOriginal AssigneeLg Electronics Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (14), Non-Patent Citations (1), Referenced by (8), Classifications (17), Legal Events (1) External Links: USPTO, USPTO Assignment, EspacenetControlling power supply to a storage deviceUS 7836319 B2Abstract A power control apparatus includes a driver for controlling an operation of a storage device, a filter driver for monitoring a state of the storage device, and a management program part for controlling a power supply to the storage device. The management program part is configured to output a control signal based upon the monitored state to a control part operatively connected to the storage device.
BACKGROUND This description relates to power control for a storage device, such as an optical disk drive.
SUMMARY In one general aspect, power of a storage device may be controlled to reduce power dissipation and extend the lifespan of a battery by shutting off power to the storage device after a predetermined time period of inactivity.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a computer system to which a general auxiliary device is connected.
DETAILED DESCRIPTION In general, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
The control part 216 controls a peripheral device, such as the ODD 221. The EC firmware part 217 controls an operation of an embedded device. The OS part 213 may be an operating system, such as Windows XP� available from Microsoft Corporation. The filter driver 212 and the management program part 214 can also be implemented as a single program.
The management program part 214 sets the ODD power state information of the ODD driver part 211 to �D3� through the filter driver 212. Accordingly, the cutting-off of the ODD power is performed after the ODD power state is set to D3, and the switch 222 is off after the ODD power state is set to D3.
In another implementation, an auto run off function of the OS may be used to stop the polling operation of the OS part 213. The power is shut off after the ODD power state is set to D3, so that the presence of the ODD 221 can still be verified by the OS part 213 that periodically polls the ODD that is in a shut-off state. If the ODD power state information is �D3,� the OS part 213 recognizes the ODD 221 as being in the D3 state, which is the maximum power-saving state while being connected to the system.
extern �C� NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject, IN
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS6067628 *Apr 9, 1998May 23, 2000Intel CorporationMethod to monitor universal serial bus hub overcurrentUS6226237 *Aug 19, 1998May 1, 2001O2 Micro International Ltd.Low power CD-ROM player for portable computerUS6591368 *Jul 30, 1999Jul 8, 2003Samsung Electronics Co., Ltd.Method and apparatus for controlling power of computer system using wake up LAN (local area network) signalUS20010043528Apr 24, 2001Nov 22, 2001Harutaka SekiyaDevice and method of recording information on an optical discUS20020096626Jan 22, 2002Jul 25, 2002Daisuke IshizukaImage input system, image input apparatus, image input method, program, and storage mediumUS20040117679 *Jul 31, 2003Jun 17, 2004Lg Electronics Inc.Apparatus and method for managing power in computer systemUS20050010828 *Mar 25, 2004Jan 13, 2005Lg Electronics Inc.Device and method for managing power in computer systemUS20050044436 *Aug 23, 2004Feb 24, 2005Microsoft CorporationDynamic power control apparatus, systems and methodsUS20060095797 *Oct 30, 2004May 4, 2006Tsung-Yung HungSwitching device for selective delivery of electrical powerUS20060129857 *May 5, 2005Jun 15, 2006Quanta Computer Inc.Power-saving device for notebook computerGB2408839A Title not availableJPH09262356A Title not availableTW514896B Title not availableTW595203B Title not available* Cited by examinerNon-Patent CitationsReference1Taiwan Search Report dated Jul. 17, 2009 for Application No. 095127395, 1 page.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8176345 *Feb 26, 2009May 8, 2012Kabushiki Kaisha ToshibaPower saving operation for a media driveUS8385164 *Jan 6, 2010Feb 26, 2013Lenovo (Beijing) LimitedOptical disk drive and computerUS8526276 *Dec 21, 2012Sep 3, 2013Lenovo (Beijing) LimitedOptical disk drive capable of reducing power consumptionUS8549332 *Oct 26, 2010Oct 1, 2013Dell Products, LpSystem for combined input output module and zero power optical disk drive with advanced integration and powerUS20100199292 *Jan 6, 2010Aug 5, 2010Lenovo (Beijing) LimitedOptical disk drive and computerUS20120084576 *Sep 9, 2011Apr 5, 2012Kabushiki Kaisha ToshibaInformation processing apparatus and power supply control methodUS20120102338 *Oct 26, 2010Apr 26, 2012Dell Products, LpSystem for Combined Input Output Module and Zero Power Optical Disk Drive with Advanced Integration and PowerUS20130111233 *Dec 21, 2012May 2, 2013Lenovo (Beijing) LimitedOptical disk drive and computer* Cited by examinerClassifications U.S. Classification713/323, 713/310, 713/320, 713/340, 713/321, 713/330, 713/322, 713/300, 713/324International ClassificationG06F13/10, G06F1/32Cooperative ClassificationY02B60/32, G06F1/3256, G06F1/3221, Y02B60/125European ClassificationG06F1/32P1C4, G06F1/32P5P2Legal EventsDateCodeEventDescriptionJul 24, 2006ASAssignmentOwner name: LG ELECTRONICS INC., KOREA, REPUBLIC OFFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OH, JANG GEUN;KIM, SEO KWANG;REEL/FRAME:017984/0899Effective date: 20060719RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google