WO2004107145A1 - 省電力化阻害要因特定システム、情報処理装置、省電力化阻害要因特定方法、プログラム、及び記録媒体 - Google Patents
省電力化阻害要因特定システム、情報処理装置、省電力化阻害要因特定方法、プログラム、及び記録媒体 Download PDFInfo
- Publication number
- WO2004107145A1 WO2004107145A1 PCT/JP2004/007097 JP2004007097W WO2004107145A1 WO 2004107145 A1 WO2004107145 A1 WO 2004107145A1 JP 2004007097 W JP2004007097 W JP 2004007097W WO 2004107145 A1 WO2004107145 A1 WO 2004107145A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- operation mode
- unit
- factor
- power saving
- main device
- Prior art date
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
Definitions
- Power saving obstruction factor identification system information processing device, power saving obstruction factor identifying method, program, and recording medium
- the present invention relates to a power saving hindrance factor specifying system, an information processing apparatus, a power saving hindrance factor specifying method, a program, and a recording medium.
- the present invention relates to an information processing apparatus that specifies an inhibiting factor that inhibits power saving.
- Non-patent document 1 Internet ⁇ URL: http://www.intel.com/jp/home/technolog y / processor / processon3_2.htm>
- an object of the present invention is to provide a power saving obstruction factor identifying system, an information processing apparatus, a power saving obstructing factor identifying method, a program, and a recording medium that can solve the above-mentioned problems. I do. This object is achieved by a combination of features described in the independent claims. The dependent claims define further advantageous embodiments of the present invention.
- an information processing apparatus for specifying an impeding factor that impedes power saving, has a plurality of operation modes having different power consumptions, and responds to a request from a sub device.
- a main device that changes the operation mode, an operation mode detector that detects the operation mode of the main device, and a history of the operation mode of the main device detected by the operation mode detector.
- An information processing apparatus comprising: a sub-device that has transmitted a request to the main device, or an obstruction factor identification unit that identifies a process of the main device in response to a request from the sub device as the obstruction factor.
- Provided are a method for identifying a factor for inhibiting power saving by the information processing apparatus, a program for the information processing apparatus, and a recording medium on which the program is recorded. You.
- FIG. 1 shows an example of a configuration of an information processing apparatus 100 according to an embodiment of the present invention.
- the information processing apparatus 100 has a plurality of operation modes in which power consumption is different from each other in order to save power of the system, and switches these operation modes appropriately.
- the system identifies the impeding factors that hinder the system's power saving by hindering the switch to the operation mode with low power consumption S, and executes appropriate operations to eliminate the impeding factors. Power saving.
- the information processing apparatus 100 is an example of the power saving obstruction factor identification system of the present invention.
- the information processing device 100 includes a central processing unit 102, a host controller 104, a main memory 106, a graphic controller 108, a display device 110, a system controller 112, a communication IZF 114, a bus master device 116, an I / O chip 118, and a flexible disk.
- a drive 120, a hard disk drive 122, and a CD-ROM drive 124 are provided.
- the host controller 104 connects the central processing unit 102 and the graphic controller 108 that access the main memory 106 at a high transfer rate to the main memory 106.
- the graphics controller 108 acquires image data generated on the frame buffer provided in the main memory 106 by the central processing unit 102 or the like, and displays the image data on the display device 110.
- the graphic controller 108 may have a frame buffer for storing image data generated by the central processing unit 102 or the like.
- the central processing unit 102 executes the instructions stored in the main memory 116. Further, the central processing unit 102 has a cache memory 126 for storing data read from the main memory 116, and performs consistency control for matching the contents of the cache memory 126 with the contents of the main memory 116.
- the central processing unit 102 is an example of the main device of the present invention, and has a plurality of operation modes having different power consumptions.
- the central processing unit 102 includes a CO operation mode as an example of a first operation mode, a C1 operation mode and a C2 operation mode as an example of a second operation mode, and a third operation mode. And a C3 operation mode and a C4 operation mode, which are one example.
- the CO operation mode is an operation mode in which an instruction execution process for executing an instruction stored in the main memory 106 is performed.
- the instruction execution processing is not performed and the central processing unit
- the external clock is supplied to the central processing unit 102.
- the internal clock of the central processing unit 102 is stopped. This is the operation mode for performing the sex control process.
- the C3 operation mode is an operation mode in which the external clock to the central processing unit 102 is stopped and the instruction execution processing and the consistency control processing are not performed.
- the operation mode in which the power supply voltage to the central processing unit 102 is, for example, 1.05 V It is.
- the C4 operation mode is an operation mode in which the external clock to the central processing unit 102 is stopped and the instruction execution processing and the consistency control processing are not performed, and the power supply voltage to the central processing unit 102 is set to C3. This operation mode is lower than the power supply voltage of the operation mode, for example, 0.75V.
- the driving voltage or the driving current may be different from each other, or the clock frequency of the external clock or the internal clock may be different from each other.
- the operation mode switches from the CO operation mode to the C4 operation mode, the power consumption decreases in order.
- the C1 operation mode, the C2 operation mode, the C3 operation mode, and the C4 operation mode may have different latencies when returning to the CO operation mode.
- the central processing unit 102 responds to requests from the host controller 104, the graphic controller 108, the system controller 112, the communication I / F 114, the bus master device 116, the ⁇ / O chip 118, etc., which are examples of the sub device of the present invention. Then, the operation mode is changed.
- the central processing unit 102 executes the program installed in the hard disk drive 122 and read out to the main memory 106, so that the operation mode detection unit 128, the inhibition factor identification unit 130, and the power saving operation execution Functions as the unit 132.
- the operation mode detection unit 128 detects the operation mode of the central processing unit 102.
- the obstruction factor identification unit 130 communicates a request to the central processing unit 102 based on the history of the operation mode of the central processing unit 102 detected by the operation mode detection unit 128, the communication IZF 114, the bus master device 116, or the IZO chip 118 Alternatively, the processing of the central processing unit 102 in response to a request from the host controller 104 is specified as a hindrance factor that hinders power saving of the central processing unit 102.
- the hard disk drive 122 is an example of the power saving operation storage unit of the present invention.
- the operation to be performed when the factor identification unit 130 identifies the inhibition factor is associated with the inhibition factor and stored as a database.
- the power saving operation execution unit 132 when the impeding factor identifying unit 130 identifies the obstructing factor, removes the obstructing factor. It performs an operation stored in the base.
- the main memory 106 outputs the stored data to the central processing unit 102 or the bus master device 116.
- the main memory 106 stores data received from the central processing unit 102 or the bus master device 116.
- the main memory 120 receives and stores programs and data from the flexible disk drive 120, the hard disk drive 122, or the CD-ROM drive 124 via the central processing unit 102.
- the system controller 112 includes relatively low-speed input / output devices such as an I / O chip 118 and a flexible disk drive 120 and relatively high-speed input / output devices such as a node disk drive 122 and a CD-ROM drive 124. An output device is connected.
- the flexible disk drive 120 reads the program or data from the flexible disk 136 and provides the program or data to the central processing unit 102 via the main memory 106.
- the IZO chip 118 connects various input / output devices via, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like, in addition to the flexible disk drive 120.
- the hard disk drive 122 stores programs and data used by the information processing apparatus 100.
- the CD-ROM drive 124 reads a program or data from the CD-ROM 138 and provides the program or data to the central processing unit 102 via the main memory 106.
- a communication I / F 114 and a bus master device 116 are connected to the system controller 112 via a PCI bus 134.
- the bus master device 116 is a device that controls input / output with the outside, and is, for example, a device that controls a USB mouse.
- the bus master device 116 accesses the main memory 116 as needed.
- Communication The IZF 114 communicates with other devices via a network.
- Communication IZF is an example of the wireless communication unit of the present invention, and may be a wireless LAN interface that performs wireless communication!
- the system controller 112 sends a memory access request signal output to access the main memory 116 to each of a plurality of input / output devices, for example, the bus master device 116. Receive from. Then, the system controller 112 causes any of the plurality of bus master devices 116 to access the main memory 106.
- the system controller 112 When the operation mode of the central processing unit 102 is the first operation mode, the system controller 112 sends a stop instruction to the central processing unit 102, for example, periodically. Then, when receiving the stop permission signal from the central processing unit 102, the system controller 112 shifts the operation mode of the central processing unit 102 to the third operation mode.
- the system controller 112 receives the interrupt request for restarting the instruction execution processing of the central processing unit 102, and sends it to the central processing unit 102 via the host controller 104. In response to this, the central processing unit 102 shifts from the third operation mode to the first operation mode and performs an instruction execution process.
- the interrupt request here is, for example, an interval timer interrupt that is input so that the central processing unit 102 periodically executes an instruction group for performing a process of detecting an executable process.
- the system controller 112 receives an interrupt request for restarting the consistency control process of the central processing unit 102, and receives the interrupt request via the host controller 104. It is sent to the processing device 102. In response to this, the central processing unit 102 shifts from the third operation mode to the first operation mode and performs a consistency control process.
- the interrupt request is an IZO interrupt output from the bus master device 116 to the central processing unit 102 via the system controller 112 when the bus master device 116 accesses the main memory 106.
- the program provided to the information processing apparatus 100 is stored in a recording medium such as a flexible disk 136, a CD-ROM 138, or an IC card and provided by a user.
- the program is read from the recording medium, installed in the information processing device 100 via the IZO chip 118 or the like, and executed in the information processing device 100.
- the program installed and executed on the information processing apparatus 100 includes an operation mode detection module, an obstacle factor identification module, and a power saving operation execution module.
- the operation that each module causes the information processing device 100 to perform is the same as the operation of the operation mode detection unit 128, the inhibition factor identification unit 130, and the power saving operation execution unit 132 in the information processing device 100 described above. Therefore, the description is omitted.
- the programs or modules described above may be stored in an external storage medium.
- an optical recording medium such as a DVD or PD
- a magneto-optical recording medium such as an MD
- a tape medium such as an IC card
- a semiconductor memory such as an IC card, or the like
- a storage device such as a node disk, a RAM, or the like provided in a server system connected to a dedicated communication network or the Internet may be used as a recording medium, and the program may be provided to the information processing device 100 via the network.
- FIG. 3 shows an example of an operation flow of the power saving inhibiting factor identification method in the central processing unit 102 according to the present embodiment.
- the operation mode detection unit 128 detects the operation mode of the central processing unit 102 for a predetermined time period of, for example, several seconds to several minutes (S100), and thereby, a plurality of operation modes, that is, the first operation mode, The occupancy of each of the second operation mode and the third operation mode is calculated (S102). For example, using an API (Application Program Interface), the operating system monitors the operation mode to determine the occupancy. Then, based on the occupancy calculated by the operation mode detection unit 128, the inhibition factor identification unit 130 identifies an inhibition factor that hinders power saving of the central processing unit 102.
- API Application Program Interface
- the operation mode detection unit 128 outputs the unit of the central processing unit 102 to the third operation mode.
- the number of transitions per time is further detected (S106).
- the inhibition factor specifying unit 130 determines that the operation state of the central processing unit 102 is optimal and that the central processing unit 102 It is determined that the power saving is not hindered (S110).
- the power saving operation execution unit 132 notifies the user that the central processing unit 102 is in an ideal operation state, for example, by displaying it on the display device 110 (S112).
- the inhibition factor identification unit 130 identifies the device that has transmitted the request to the central processing unit 102 as the inhibition factor. For example, the inhibition factor specifying unit 130 specifies a device that frequently generates an interrupt by referring to an interrupt source of an interrupt request such as an IZO interrupt received by the central processing unit 102 (S114).
- the power saving operation execution unit 132 executes the operation stored in the database of the hard disk 122 in association with the device specified by the inhibition factor specifying unit 130 (S116). For example, the power saving operation execution unit 132 causes the display device 110 to display a message asking the user for permission to stop the operation of the device specified by the inhibition factor specifying unit 130. Then, when the user gives permission to stop the device, the power saving operation execution unit 132 stops the operation of the device, and the operation mode detection unit 128 Re-calculate the occupancy of. Then, based on the occupation ratio calculated again by the operation mode detecting unit 128, the hindrance factor specifying unit 130 determines whether or not the device is a hindrance factor, and notifies the user together with an appropriate solution or the like.
- the power saving operation executing unit 132 may stop the operation of the device without the permission of the user.
- the impairment factor specifying unit 130 specifies the communication IZF 114, which is a wireless communication unit, as an impediment factor
- the communication IZF 114 cannot communicate due to radio interference
- Communication You may stop the operation of IZF114.
- the central processing unit 102 performs the consistency control process because the access to the main memory 116 by the master device 126 has occurred. The transition to the C3 operating mode is prevented.
- the inhibition factor identification unit 130 identifies the bus master device 116 that accesses the main memory 106 without passing through the central processing unit 102 as an inhibition factor (S120). For example, the inhibition factor identification unit 130 identifies the inhibition factor by checking the operating state of the USB controller, the video device, and the like.
- the power saving operation execution unit 132 executes the operation stored in the database of the hard disk 122 in association with the bus master device 116 specified by the inhibition factor specifying unit 130 (S116). For example, the power saving operation execution unit 132 causes the display device 110 to display a message requesting the user to permit the stop of the operation of the bus master device 116 specified by the inhibition factor specifying unit 130. Then, when the user power is also permitted to stop the bus master device 116, the power saving operation execution unit 132 stops the operation of the bus master device 116, and the operation mode detection unit 128 The occupancy of each of the operation modes is calculated again.
- the hindrance factor specifying unit 130 determines whether or not the bus master device 116 is the hindrance factor, and takes an appropriate solution. Notify the user to. Specifically, “Remove the USB mouse to use the battery for a long time.”, “The video device is preventing power saving. Update the video driver.” Notify the user of the message.
- the central processing unit 102 executes an instruction execution process to shift to the C3 operation mode. Is hindered. Therefore, the inhibition factor identification unit 130 identifies a process executed by the central processing unit 102 as an inhibition factor (S122).
- the hindrance factor specifying unit 130 determines, based on the usage rate of the central processing unit 102 by each process, for example, detected by a performance monitor. Thus, a process that is an obstacle may be specified.
- the power-saving operation executing unit 132 executes the operation stored in the database of the hard disk 122 in association with the process specified by the inhibition factor specifying unit 130 (S116). For example, the power saving operation execution unit 132 causes the display device 110 to display a message asking the user for permission to stop the operation of the process identified by the inhibition factor identification unit 130, an appropriate solution, and the like, and display the message. Notify the user.
- the power-saving operation execution unit 132 may notify the information on the operation state of the central processing unit 102 to a remote user via a communication network such as the Internet. Good.
- the operation mode detection unit 128 transmits the request to the central processing unit 102 while obtaining, for example, the user's permission to stop the operation of the device, or A plurality of occupancies may be calculated by detecting an operation mode while sequentially stopping the processing of the central processing unit 102 in response to a request from the device. Then, based on the plurality of occupancies calculated by the operation mode detection unit 128, the hindrance factor specifying unit 130 may specify the hindrance factor that hinders power saving of the central processing unit 102.
- the hindrance factor can be specified accurately. It is also possible to easily identify obstacles that are difficult for noticeable users to notice. Furthermore, based on the operation stored in advance in association with the impediment factor, the user is notified of the cause or the solution that is preventing the power saving, and the impeding factor is automatically determined based on the user's instruction or automatically. Can be removed. Therefore, the central processing unit 102 enables a transition to the C3 operation mode or the C4 operation mode with low power consumption. Therefore, power saving of the central processing unit 102 can be realized, and the operation time of the information processing apparatus 100 such as a notebook personal computer can be extended by the battery.
- the central processing unit 102 has been described as an example of the device, the main device of the present invention has a plurality of operation modes having different power consumptions, and transitions between the operation modes according to a request of an external sub device.
- the central processing unit 102 may be another device as long as it is a device to be controlled.
- the host controller 104, the graphic controller 108, the system controller 112, or the IZO chip 118 may be used.
- the power saving obstruction factor specifying system described above using the information processing apparatus 100 as an example of the power saving obstructing factor specifying system of the present invention may be a system including a network such as a WAN or a LAN. Good.
- the main device of the present invention may be a server computer, and the sub-device of the present invention may be a client computer.
- FIG. 1 is a diagram showing an example of a configuration of an information processing apparatus 100.
- FIG. 2 is a diagram showing an example of an operation mode of a central processing unit 102.
- FIG. 3 is a diagram showing an example of an operation flow of the central processing unit 102.
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Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04745306.3A EP1635247B1 (en) | 2003-05-27 | 2004-05-25 | Power saving inhibiting factor identification system, information processing device, power saving inhibiting factor identification method, program, and recording medium |
JP2005506477A JP4038224B2 (ja) | 2003-05-27 | 2004-05-25 | 省電力化阻害要因特定システム、情報処理装置、省電力化阻害要因特定方法、プログラム、及び記録媒体 |
KR1020057022630A KR100890692B1 (ko) | 2003-05-27 | 2004-05-25 | 데이터 처리 시스템 |
CA2527326A CA2527326C (en) | 2003-05-27 | 2004-05-25 | Method and apparatus for specifying factors that impede power savings of a processor |
US11/284,582 US7395441B2 (en) | 2003-05-27 | 2005-11-22 | Method and apparatus for specifying factors that impede power savings of a processor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003148752 | 2003-05-27 | ||
JP2003-148752 | 2003-05-27 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/284,582 Continuation US7395441B2 (en) | 2003-05-27 | 2005-11-22 | Method and apparatus for specifying factors that impede power savings of a processor |
Publications (1)
Publication Number | Publication Date |
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WO2004107145A1 true WO2004107145A1 (ja) | 2004-12-09 |
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ID=33487128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/007097 WO2004107145A1 (ja) | 2003-05-27 | 2004-05-25 | 省電力化阻害要因特定システム、情報処理装置、省電力化阻害要因特定方法、プログラム、及び記録媒体 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7395441B2 (ja) |
EP (1) | EP1635247B1 (ja) |
JP (1) | JP4038224B2 (ja) |
KR (2) | KR20060013415A (ja) |
CA (1) | CA2527326C (ja) |
WO (1) | WO2004107145A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007295145A (ja) * | 2006-04-24 | 2007-11-08 | Fuji Xerox Co Ltd | 画像処理装置、機器情報要求元の特定方法、及びプログラム |
JP2010526374A (ja) * | 2007-05-02 | 2010-07-29 | アドバンスト・マイクロ・ディバイシズ・インコーポレイテッド | 低パワーキャッシュアクセスモードを備えたデータ処理デバイス |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7336264B2 (ja) * | 2019-05-29 | 2023-08-31 | 株式会社マキタ | バッテリパック |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08130595A (ja) * | 1994-10-31 | 1996-05-21 | Ricoh Co Ltd | ファクシミリ装置 |
JP2001331244A (ja) * | 2000-05-19 | 2001-11-30 | Fujitsu Ltd | 情報機器及び省電力モード切替方法及び省電力モード切替プログラムを格納した記録媒体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5339445A (en) * | 1992-11-16 | 1994-08-16 | Harris Corporation | Method of autonomously reducing power consumption in a computer sytem by compiling a history of power consumption |
KR100199831B1 (ko) * | 1996-01-15 | 1999-06-15 | 구자홍 | 영상기기의 절전 제어회로 |
JPH10173832A (ja) * | 1996-12-13 | 1998-06-26 | Ricoh Co Ltd | ファクシミリ装置 |
JPH10240557A (ja) * | 1997-02-27 | 1998-09-11 | Mitsubishi Electric Corp | 待機冗長化システム |
KR19990069292A (ko) * | 1998-02-06 | 1999-09-06 | 구자홍 | 역률개선용 전력 절감회로 |
WO1999067766A2 (en) * | 1998-06-03 | 1999-12-29 | Cryptography Research, Inc. | Balanced cryptographic computational method and apparatus for leak minimization in smartcards and other cryptosystems |
US20020194511A1 (en) * | 2001-06-18 | 2002-12-19 | Swoboda Gary L. | Apparatus and method for central processing unit power measurement in a digital signal processor |
JP3600556B2 (ja) * | 2001-06-29 | 2004-12-15 | 株式会社東芝 | 情報処理装置 |
US7123829B2 (en) * | 2003-08-29 | 2006-10-17 | Ricoh Company, Ltd. | Digital camera and power supply apparatus used therefor |
-
2004
- 2004-05-25 EP EP04745306.3A patent/EP1635247B1/en not_active Expired - Lifetime
- 2004-05-25 CA CA2527326A patent/CA2527326C/en not_active Expired - Lifetime
- 2004-05-25 KR KR1020057022312A patent/KR20060013415A/ko not_active Application Discontinuation
- 2004-05-25 JP JP2005506477A patent/JP4038224B2/ja not_active Expired - Lifetime
- 2004-05-25 WO PCT/JP2004/007097 patent/WO2004107145A1/ja active Search and Examination
- 2004-05-25 KR KR1020057022630A patent/KR100890692B1/ko active IP Right Grant
-
2005
- 2005-11-22 US US11/284,582 patent/US7395441B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08130595A (ja) * | 1994-10-31 | 1996-05-21 | Ricoh Co Ltd | ファクシミリ装置 |
JP2001331244A (ja) * | 2000-05-19 | 2001-11-30 | Fujitsu Ltd | 情報機器及び省電力モード切替方法及び省電力モード切替プログラムを格納した記録媒体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1635247A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007295145A (ja) * | 2006-04-24 | 2007-11-08 | Fuji Xerox Co Ltd | 画像処理装置、機器情報要求元の特定方法、及びプログラム |
JP2010526374A (ja) * | 2007-05-02 | 2010-07-29 | アドバンスト・マイクロ・ディバイシズ・インコーポレイテッド | 低パワーキャッシュアクセスモードを備えたデータ処理デバイス |
Also Published As
Publication number | Publication date |
---|---|
JP4038224B2 (ja) | 2008-01-23 |
EP1635247B1 (en) | 2014-07-16 |
KR100890692B1 (ko) | 2009-03-26 |
KR20060013415A (ko) | 2006-02-09 |
CA2527326C (en) | 2015-07-28 |
KR20060058055A (ko) | 2006-05-29 |
JPWO2004107145A1 (ja) | 2006-07-20 |
CA2527326A1 (en) | 2004-12-09 |
EP1635247A4 (en) | 2011-05-25 |
US20060107080A1 (en) | 2006-05-18 |
US7395441B2 (en) | 2008-07-01 |
EP1635247A1 (en) | 2006-03-15 |
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