CN1578941A - Power managing in a system having internal USB hub - Google Patents
Power managing in a system having internal USB hub Download PDFInfo
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- CN1578941A CN1578941A CNA018230091A CN01823009A CN1578941A CN 1578941 A CN1578941 A CN 1578941A CN A018230091 A CNA018230091 A CN A018230091A CN 01823009 A CN01823009 A CN 01823009A CN 1578941 A CN1578941 A CN 1578941A
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- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims description 34
- 238000010168 coupling process Methods 0.000 claims description 34
- 238000005859 coupling reaction Methods 0.000 claims description 34
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- 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
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Power Sources (AREA)
Abstract
A method and system for managing power in a computer system is disclosed. The computer system (100) includes a host (102). The method and system include providing a Universal Serial Bus (USB) hub (106), at least one USB connector (104, 108, 110) and attach/removal detection logic (120). The at least one USB connector is coupled with the USB hub. The attach/removal detection logic is coupled with the USB hub. The attach/removal detection logic determines whether a USB device is connected to the at least one USB connector, logically decouples the USB hub from the host if the USB device is not connected to the at least one USB connector and logically couples the USB hub to the host if the USB device is connected to the at least one USB connector.
Description
Technical field
The present invention is relevant with computer system, and more specifically, the present invention is relevant for the method and system of carrying out power management in the system with internal USB hub.
Background technology
The USB connected mode is just day by day popularized in computer system.Fig. 1 describes the conventional computer system 10 with USB connector.This conventional computer system 10 may be various computer system, comprises such as notebook or desk-top computer or the like.Conventional computer system 10 comprises main frame 12, first USB connector 14, usb hub 16, USB connector 18 and 20, reaches power supply 22.Main frame 12 comprises integrated circuit and processor thus (clearly not showing), and this processor is used for moving the operating system (clearly not showing) of computer system 10.For example, main frame 12 may comprise 4 groups of INTEL
TM(Intel) integrated circuit.Therefore, this main frame 12 may comprise INTEL
TMProcessor, these processor operations MICROSOFT
TMThe operating system of (Microsoft).Conventional computer system 10 also comprises USB connector 14.This conventional computer system 10 may comprise another USB connector (clearly showing) and can move according to indication.Because the USB connected mode is very universal, so conventional computer system 10 need have the great quantity of USB connector.Therefore, provide the usb hub that connects main frame 12 and USB connector 18 and 20.Thus, usb hub 16 allows extra USB connector 18 and 20 to be incorporated in the computer system 10.For normally moving, this usb hub can be connected to power supply 22 to obtain power supply.Generally speaking, conventional computer system 10 comprises the assembly 12,14,16,18,20 and 22 that is incorporated in the casing.
Although conventional computer system 10 can be moved,, those of ordinary skill in the art may use the power that is higher than expectation yet should being not difficult to recognize this traditional computer 10.For some operating system and processor, such as MICROSOFT
TMOperating system and some INTEL
TMProcessor uses the USB device that is connected to USB connector will make processor can't be in minimum power state, i.e. Tong Cheng C3 state.In other words, because the implementation of some usb host, if the operating system of main frame 12 detects the existence of USB device, then processor can't enter its minimum power state.In conventional computer system 10, and desired as the USB specification, the operating system in the main frame 12 is regarded usb hub 16 as USB device, and this usb hub 16 is incorporated in this conventional computer system 10.Therefore, although do not use any external USB equipment, system always detects the existence of USB device.As a result, the processor in the main frame 12 can't enter minimum power state forever.Therefore this traditional computer 10 can consume the power that is higher than expectation.If this traditional computer 10 is for to have the computer system of Move Mode, as notebook, then this problem especially merits attention.In this type of computer system, power supply 22 comprises battery, is used for when Move Mode to conventional computer system 10 power supplies.When being in Move Mode, we wish to allow that main frame 12 enters minimum power state, to save battery electric quantity, for example when use main frame 12 not yet in effect.Because the processor of main frame 12 can't enter minimum power state, the battery power consumption will be faster.This battery may be lost electric weight, and modern user can't use this conventional computer system 10 when needed.
Therefore, we need a kind of system and method, are used to provide a cover system, and this system allows that the computer system with usb hub carries out power management.The present invention just addresses that need.
Summary of the invention
The present invention proposes a kind of method and system that are used for power management in the computer system.This computer system comprises main frame.These method and system comprise to be provided usb hub, at least one USB connector and contacts/remove the detection logic.Described at least one USB connector and usb hub coupling.Contact/remove the coupling of detection logic and usb hub.Contact/remove the detection logic and determined whether that USB device is connected to described at least one USB connector, if USB device does not connect described at least one USB connector, then contact/remove and detect logic usb hub and host logic decoupling zero, and if USB device has connected described at least one USB connector, then contact/remove and detect logic with usb hub and host logic coupling.
According to the system and method that disclose in this place, the present invention enters lower power state by the processor in the permission main frame makes the power supply in this computer system obtain management.
Description of drawings
Fig. 1 is the conventional computer system block scheme with usb hub.
Fig. 2 has the block scheme of the unified embodiment of department of computer science of usb hub for foundation is of the present invention.
Fig. 3 is the block scheme according to another embodiment of the computer system with usb hub of the present invention.
Fig. 4 for according to second embodiment of computer system with usb hub of the present invention than more detailed block diagram.
Embodiment
The improvement of the present invention and computer system is relevant.Propose following description and be in order to make those of ordinary skills can make and use the present invention, and following description is to propose under the situation of answering patented claim and requirement thereof.Various modification to preferred embodiment will be apparent for those skilled in the art, and universal principle also can be applicable to other specific embodiment referred in this.Therefore, the present invention is not limited to illustrated embodiment, and should cover the widest scope of principle described herein and feature.
Conventional computer system can comprise main frame, usb hub and be integrated in a plurality of USB connector in the single unit.Described main frame generally comprises one or organize integrated circuit more, this one or organize integrated circuit more and comprise at least one processor, this processor is used to move the operating system (" OS ") of conventional computer system.Because USB device is just day by day general, so usb hub and main frame coupling.USB device and conventional computer system coupling are allowed in a plurality of USB connector and usb hub coupling, described a plurality of USB connector.Although conventional computer system can be allowed USB device and this conventional computer system collocation use of a greater number, those of ordinary skill in the art will understand suitably managing electrical power of conventional computer system.Particularly desired as the USB specification, conventional computer system is used as usb hub the USB device that is connected to this conventional computer system.Therefore, the processor in the conventional computer system main frame can't enter some power rating.As a result, this conventional computer system is higher than consumption the power of expectation.
The present invention proposes the method and system of managing electrical power in a kind of computer system.This computer system comprises main frame.These method and system comprise to be provided usb hub, at least one USB connector and contacts/remove the detection logic.Described at least one USB connector and usb hub coupling.Contact/remove the coupling of detection logic and usb hub.Contact/remove the detection logic and determine whether USB device is connected to described at least one USB connector, if USB device does not connect at least one USB connector, then with usb hub and host logic decoupling zero, and if USB device connects at least one USB connector, then with usb hub and host logic coupling.
The present invention will be described by the assembly of some assembly and OS and given number.Yet those of ordinary skill in the art will be realized that this method and system can equally effectively move for other assembly, other OS and other component count.And, for the purpose of clear, with many parts of omitting according to computer system of the present invention.
For being described more specifically, now see also Fig. 2 according to method and system of the present invention.Fig. 2 describes the high-level block diagram according to one embodiment of the present of invention, is computer system 100.The USB connector 108 and 110 that this computer system 100 comprises main frame 102, first USB connector 104, usb hub 106, be connected to usb hub 106 with the power supply 112 of usb hub 106 couplings, contact/remove and detect logical one 20 and connector 122.Main frame 102, first USB connector 104, usb hub 106, USB connector 108 and 110, and power supply 112 preferably with the main frame 12 of conventional computer system 10 shown in Figure 1, first USB connector 14, usb hub 16, USB connector 18 and 20, and power supply 22 basic identical.
Consult Fig. 2, contact/remove and detect logical one 20 and be coupled to USB connector 108 and 110 and be coupled to power supply 112 and usb hub 106 by connector 122.This contact/remove detection logical one 20 detection USB device (not shown)s whether to insert one of USB connector 108 and 110.If USB device does not connect any USB connector 108 and 110, then contact/remove and detect logic usb hub 106 and main frame 102 logic decoupling zeros.In addition, if USB device is coupled to any USB connector 108 and 110, this contact/remove and detect logical one 20 with this usb hub 106 and the coupling of main frame 102 logics.Contact/remove detection logical one 20 and finish above operation by control linkage device 122.Particularly, contact/remove logical one 20 control linkage devices 122 to finish following operation: when USB device was coupled to any USB connector 108 and 110, connector 122 was coupled to power supply 112 with usb hub 106; And when USB device is not coupled to any USB connector 108 and 110, connector 122 will not make usb hub 106 and power supply 112 couplings.Therefore, only when one or more USB connector 108 and 110 is used by usb hub 106, just supply power to usb hub 106.
Contact/remove detection logical one 20 by use, computer system 100 is managing electrical power preferably.When having only usb hub 106 energized, the operating system of main frame 102 could be discerned usb hub 106.One or more USB connector 108 and 110 usb hub 106 ability energized 112 have just in use been guaranteed only to work as because contact/remove detection logical one 20 and connector 122, so have only when USB device is connected to one or more USB connector 108 and 110, operating system could be discerned usb hub 106.In other words, when USB device is not coupled with one of USB connector 108 and 110, usb hub 106 and main frame 102 logic decoupling zeros.Similarly, when USB device was connected with one or more USB connector 108 and 110, usb hub 106 logics were coupled to main frame.Even physically usb hub 106 keeps and being connected of main frame 102 always, above-mentionedly still set up.Therefore, have only when one or more USB connector 108 and 110 just in use, the operating system of main frame 102 just is used as usb hub 106 as the USB device that is coupled to main frame 102.Therefore, when described connector did not use, the processor of main frame 102 can enter minimum power state.Therefore, can be because of the existence of usb hub 106 electric consumption unnecessarily.Event is the power supply of managing computer system 100 preferably.
Fig. 3 is the block scheme according to another embodiment of the present invention, for computer system 100 with usb hub '.Computer system 100 ' comprise and computer system 100 similar assemblies.Therefore, these similar assemblies indicate with like numerals will.Yet for the purpose of clear, some assembly is also not shown.Computer system 100 ' comprise main frame 102 ', be connected to main frame 102 ' USB connector 104 ', usb hub 106 ', and and the USB connector 108 of usb hub 106 ' coupling ' reach 110 '.Computer system 100 ' also comprise contact/remove detect logical one 20 ' and connector 122 ', yet, computer system 100 ' in, connector 122 ' be coupling in main frame 102 ' and usb hub 106 ' between.If USB device do not connect any USB connector 108 ' and 110 ', then contact/remove and detect logical one 20 ' will usb hub 106 ' and main frame 102 ' logic decoupling zero.If USB device connect any USB connector 108 ' and 110 ', then contact/remove and detect logical one 20 ' will usb hub 106 ' and main frame 102 ' logic coupling.Contact/remove and detect logical one 20 ' by control linkage device 122 ' execution above-mentioned functions.Particularly, contact/remove logical one 20 ' control linkage device 122 ' to finish following function: when USB device is coupled to any USB connector 108 ' and 110 ' time, connector 122 ' with usb hub 106 ' be coupled to main frame 102 '.In addition, contact/remove and detect logical one 20 ' control linkage device 122 ' to finish following function: when USB device is not coupled to any USB connector 108 ' and 110 ' time, connector 122 ' will not make usb hub 106 ' and main frame 102 ' be coupled.
By use contact/remove detect logical one 20 ', the managing electrical power of computer system 100 ' preferably.Have only main frame 102 ' and usb hub 106 ' coupling, main frame 102 ' operating system could discern usb hub 106 '.Because contact/remove detect logical one 20 ' and connector 122 ' only when the ability of one or more USB connector 108 ' and 110 ' when just using with usb hub 106 ' be coupled to main frame 102 ', be connected to one or more USB connector 108 ' and 110 ' time so have only when USB device, operating system could discern usb hub 106 '.In other words, when USB device not with USB connector 108 ' and 110 ' one of during coupling, usb hub 106 ' and host logic decoupling zero.Similarly, when USB device and one or more USB connector 108 ' and 110 ' when being connected, usb hub 106 ' logic is coupled to main frame.Therefore, have only when one or more USB connector 108 ' and 110 ' when just using, main frame 102 ' operating system just usb hub 106 ' be used as is coupled to main frame 102 ' USB device.Therefore when these connectors do not use, main frame 102 ' processor can enter minimum power state.Therefore, not can because of usb hub 106 ' existence and electric consumption unnecessarily.So preferably managing computer system 100 ' power supply.
Fig. 4 be according to the second embodiment of the present invention than more detailed block diagram, for having usb hub 106 " computer system 100 ".This computer system 100 " comprises and computer system 100 similar assemblies.Therefore, these similar assemblies indicate with like numerals will.Yet for the purpose of clear, some assembly does not mark.Computer system 100 " comprises processor 102 " (on the main frame that processor 102 " places computer system 100 "), usb hub 106 ", and USB connector 108 " and 110 ".Computer system 100 " also comprises and contacts/remove detection logical one 20 " and connector 122 ".Furthermore, computer system 100 ' ' comprise transient suppressor (transient suppressor) 124.This transient suppressor is used for preventing the infringement that static discharge caused when the USB device (not shown) is thermally coupled to connector 110 " and 108 ".Contact/remove and detect logic and comprise integrated circuit 126 and 128 and logic gate 130,132 and 134.Connector 122 " is FET (field effect transistor).Therefore, connector 122 " be not the connector of ordinary meaning, because this connector 122 " not physically with usb hub 106 " and processor 102 " are removed coupling.On the contrary, " why be connector, be because of its permission usb hub 106 " logic is coupled to processor 102 " or with the two logic decoupling zero to this connector 122.When USB device is connected to USB connector 108 " or 110 ", contact/remove detection logical one 20 " enabling signal H8USBON.When this signal enabling, FET122 " is activated.Therefore when USB device was connected to connector 108 " or 110 ", the circuit 121 between between processor 102 " and usb hub 106 " can be driven to a high position.As a result, only when USB connector 108 " or 110 " when just using, usb hub 106 " just can connection processing device 102 ".So have only when USB connector 108 " or 110 " when just using, processor 102 " just with usb hub 106 " is used as USB device.At All Other Times, processor 102 " operation with usb hub 106 " is used as and is not present in computer system 100 " in.Therefore, when USB connector 108 ' ' with 110 ' ' when not using, processor 102 " can enter minimum power state.So managing computer system 100 preferably " power supply.
The present invention has disclosed a kind of method and system, is used to manage the power supply of the system with internal USB hub.Although the present invention is described according to illustrated embodiment, those of ordinary skill in the art should be understood that for all embodiment can carry out various variation, and these variations will still belong within principle of the present invention and the scope.Therefore, under principle that does not depart from appended right application and scope prerequisite, those of ordinary skill in the art can carry out many modifications.
Industrial applicability
The present invention can be used to manage the demand to power supply in the communication electric system.
Claims (12)
1. the system of a managing computer system power supply, this computer system comprises main frame, described system comprises:
USB (universal serial bus) (USB) hub;
At least one USB connector with this usb hub coupling; And
With the coupling of this usb hub contact/remove the detection logic, this contact/remove the detection logic to be used for determining whether USB device is connected with described at least one USB connector, if USB device is not connected with described at least one USB connector, then with usb hub and this host logic decoupling zero, and if USB device is connected with described at least one USB connector, then with this usb hub and the coupling of this host logic.
2. the system as claimed in claim 1 wherein contacts/removes and detects logic and main frame coupling, and wherein if USB device is not connected with at least one USB connector, and described contact/remove the detection logic will disconnect being connected of usb hub and main frame.
3. system as claimed in claim 2, wherein contact/remove and detect logic when USB device is not connected with at least one USB connector, first signal is provided, and when USB device is connected with at least one USB connector, secondary signal is provided, and this system further comprises:
With main frame, contact/remove the connector that detects logic and usb hub coupling, this connector is used for usb hub is connected to main frame with the response secondary signal, and usb hub and the disconnection of this main frame are connected to respond first signal.
4. the system as claimed in claim 1, wherein said computer system further comprises the power supply with the usb hub coupling, and, then contact/remove and detect being connected of logic disconnection usb hub and power supply wherein if USB device is not connected with at least one USB connector.
5. system as claimed in claim 4, wherein contact/remove and detect logic when USB device is not connected with at least one USB connector, first signal is provided, and when USB device is connected with described at least one USB connector, secondary signal is provided, and this system further comprises:
With power supply, contact/remove the connector that detects logic and usb hub coupling, this connector is used for usb hub is connected to power supply with the response secondary signal, and disconnects being connected to respond first signal of usb hub and power supply.
6. the system as claimed in claim 1 wherein when USB device is not connected with at least one USB connector, allows that this computer system enters minimum power state.
7. method that is used for the control computer system power supply, this system comprise main frame and the coupling of this main frame USB (universal serial bus) (USB) hub and and at least one USB connector of this usb hub coupling, this method comprises the following steps:
(a) determine whether USB device is connected with at least one USB connector;
(b) if USB device is not connected with at least one USB connector, then with usb hub and host logic decoupling zero; And
(c) if USB device is connected with at least one USB connector, then with usb hub and host logic coupling.
8. method as claimed in claim 7, wherein determining step (a), logic decoupling zero step (b) and logic coupling step (c) contact/remove the execution of detection logic by use.
9. method as claimed in claim 8, wherein logic decoupling zero step (b) further comprises the following steps:
(b1), then disconnect being connected of usb hub and main frame if USB device is not connected with at least one USB connector.
10. method as claimed in claim 9, it breaks Connection Step (b1) and further comprises the following steps:
(b1i) when USB device is not connected with at least one USB connector, use contacts/removes the detection logic first signal is provided, and when USB device is connected with at least one USB connector, use contacts/removes the detection logic secondary signal is provided, and contacts/remove detection logic and main frame and described at least one connector coupling; And
(b1ii) use with main frame, contact/remove the connector that detects logic and usb hub coupling, usb hub being connected to power supply, and disconnect being connected of usb hub and power supply to respond first signal with the response secondary signal.
11. method as claimed in claim 8, wherein said computer system further comprise the power supply with the usb hub coupling, and wherein further comprise the following steps: with logic decoupling zero step (b)
(b1), then disconnect being connected of usb hub and this power supply if USB device is not connected with at least one USB connector.
12. method as claimed in claim 11, it breaks Connection Step (b1) and further comprises the following steps:
(b1i) when USB device is not connected with at least one USB connector, use contacts/removes the detection logic first signal is provided, and when USB device is connected with at least one USB connector, use contacts/removes the detection logic secondary signal is provided, and contacts/remove detection logic and power supply and described at least one connector coupling; And
(b1ii) use with power supply, contact/remove the connector that detects logic and usb hub coupling, usb hub being connected to power supply, and disconnect being connected of usb hub and power supply to respond first signal with the response secondary signal.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26300701P | 2001-01-18 | 2001-01-18 | |
| US60/263,007 | 2001-01-18 | ||
| US09/802,659 US6928562B2 (en) | 2001-03-09 | 2001-03-09 | Method and system for managing power in a system having an internal USB HUB |
| US09/802,659 | 2001-03-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1578941A true CN1578941A (en) | 2005-02-09 |
| CN1256643C CN1256643C (en) | 2006-05-17 |
Family
ID=26949608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018230091A Expired - Lifetime CN1256643C (en) | 2001-01-18 | 2001-12-11 | Power managing in a system having internal USB hub |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1360571A4 (en) |
| JP (1) | JP3810368B2 (en) |
| KR (1) | KR100523417B1 (en) |
| CN (1) | CN1256643C (en) |
| CZ (1) | CZ20031965A3 (en) |
| HU (1) | HUP0302769A3 (en) |
| PL (1) | PL205182B1 (en) |
| TW (1) | TWI222553B (en) |
| WO (1) | WO2002065264A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102193613A (en) * | 2010-03-09 | 2011-09-21 | 张乃千 | Energy-and-electricity-saving control method for electronic device |
| CN102834817A (en) * | 2010-03-26 | 2012-12-19 | 电力系统技术有限公司 | Power adapter having a universal serial bus hub |
| CN103198033A (en) * | 2012-01-06 | 2013-07-10 | 联阳半导体股份有限公司 | Apparatus and method of identifying a USB or an MHL device |
| CN104461992A (en) * | 2014-10-31 | 2015-03-25 | 苏州达方电子有限公司 | Electronic device |
| CN111309660A (en) * | 2020-02-17 | 2020-06-19 | 深圳市普威技术有限公司 | Host device, terminal device and data interaction system |
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| JP2004287960A (en) * | 2003-03-24 | 2004-10-14 | Fuji Photo Film Co Ltd | Host/function device |
| JP2005182462A (en) * | 2003-12-19 | 2005-07-07 | Toshiba Corp | Electronic appliance, unit driving device and method for controlling interface of unit driving device |
| TW200603011A (en) | 2004-05-10 | 2006-01-16 | Sony Computer Entertainment Inc | Mobile terminal and USB device |
| JP5016783B2 (en) * | 2004-08-11 | 2012-09-05 | 株式会社東芝 | Information processing apparatus and power supply control method thereof |
| KR101145542B1 (en) | 2004-10-27 | 2012-05-15 | 엘지전자 주식회사 | Apparatus and method for controling Power Management |
| US7512720B2 (en) * | 2005-04-29 | 2009-03-31 | Sigmatel, Inc. | System and method for accessing universal serial bus networks |
| JP2006344159A (en) | 2005-06-10 | 2006-12-21 | Toshiba Information Systems (Japan) Corp | Communication controller for common bus connecting device |
| KR100763948B1 (en) * | 2005-07-12 | 2007-10-05 | 삼성전자주식회사 | display apparatus Comprising USB Universial Serial Bus Hub |
| JP2007156921A (en) * | 2005-12-06 | 2007-06-21 | Y E Data Inc | Failure detection/recovery system of usb device, program thereof, recording medium with the program recorded thereon, and failure detection/recovery method |
| US7849334B2 (en) * | 2006-09-29 | 2010-12-07 | Intel Coporation | Transitioning a computing platform to a low power system state |
| JP2009009337A (en) * | 2007-06-27 | 2009-01-15 | Sharp Corp | Signal processor and power saving method in signal processor |
| TW201015286A (en) * | 2008-10-02 | 2010-04-16 | Alcor Micro Corp | Bridging device with power-saving function |
| KR100932481B1 (en) * | 2009-04-24 | 2009-12-17 | 손청하 | USS power supply and its method |
| KR101729511B1 (en) | 2010-05-25 | 2017-04-24 | 삼성전자 주식회사 | Computer system and control method thereof |
| US9792239B2 (en) * | 2014-02-27 | 2017-10-17 | Genesis Technology Usa, Inc. | Tablet case with switching circuit for on-the-go USB port |
| IT201900005822A1 (en) | 2019-04-15 | 2020-10-15 | Phoenix Ict S R L S | GENERAL PURPOSE PERIPHERAL ADAPTER FOR COMPUTER |
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2001
- 2001-12-11 EP EP01273738A patent/EP1360571A4/en not_active Ceased
- 2001-12-11 CZ CZ20031965A patent/CZ20031965A3/en unknown
- 2001-12-11 JP JP2002564719A patent/JP3810368B2/en not_active Expired - Fee Related
- 2001-12-11 KR KR10-2003-7009350A patent/KR100523417B1/en not_active IP Right Cessation
- 2001-12-11 WO PCT/US2001/047259 patent/WO2002065264A1/en active IP Right Grant
- 2001-12-11 PL PL362602A patent/PL205182B1/en unknown
- 2001-12-11 HU HU0302769A patent/HUP0302769A3/en unknown
- 2001-12-11 CN CNB018230091A patent/CN1256643C/en not_active Expired - Lifetime
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2002
- 2002-01-15 TW TW091100463A patent/TWI222553B/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102193613A (en) * | 2010-03-09 | 2011-09-21 | 张乃千 | Energy-and-electricity-saving control method for electronic device |
| CN102834817A (en) * | 2010-03-26 | 2012-12-19 | 电力系统技术有限公司 | Power adapter having a universal serial bus hub |
| CN102834817B (en) * | 2010-03-26 | 2016-08-03 | 电力系统技术有限公司 | There is the power adapters of universal serial bus concentrator |
| CN103198033A (en) * | 2012-01-06 | 2013-07-10 | 联阳半导体股份有限公司 | Apparatus and method of identifying a USB or an MHL device |
| CN104461992A (en) * | 2014-10-31 | 2015-03-25 | 苏州达方电子有限公司 | Electronic device |
| CN104461992B (en) * | 2014-10-31 | 2018-07-06 | 苏州达方电子有限公司 | Electronic device |
| CN111309660A (en) * | 2020-02-17 | 2020-06-19 | 深圳市普威技术有限公司 | Host device, terminal device and data interaction system |
| CN111309660B (en) * | 2020-02-17 | 2021-07-09 | 深圳市普威技术有限公司 | Host device, terminal device and data interaction system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030070915A (en) | 2003-09-02 |
| PL362602A1 (en) | 2004-11-02 |
| EP1360571A1 (en) | 2003-11-12 |
| CZ20031965A3 (en) | 2003-11-12 |
| TWI222553B (en) | 2004-10-21 |
| WO2002065264A1 (en) | 2002-08-22 |
| KR100523417B1 (en) | 2005-10-25 |
| HUP0302769A2 (en) | 2003-11-28 |
| PL205182B1 (en) | 2010-03-31 |
| JP2004521419A (en) | 2004-07-15 |
| JP3810368B2 (en) | 2006-08-16 |
| EP1360571A4 (en) | 2009-03-04 |
| HUP0302769A3 (en) | 2005-08-29 |
| CN1256643C (en) | 2006-05-17 |
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