CN101477397A - External connection device control method of display - Google Patents
External connection device control method of display Download PDFInfo
- Publication number
- CN101477397A CN101477397A CNA2008100019318A CN200810001931A CN101477397A CN 101477397 A CN101477397 A CN 101477397A CN A2008100019318 A CNA2008100019318 A CN A2008100019318A CN 200810001931 A CN200810001931 A CN 200810001931A CN 101477397 A CN101477397 A CN 101477397A
- Authority
- CN
- China
- Prior art keywords
- external device
- display
- normal operation
- operation state
- device circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Controls And Circuits For Display Device (AREA)
- Power Sources (AREA)
Abstract
The invention relates to an external device control method for a display. When the display is under a normal operating state, after the external device is connected with an external device circuit of the display, the external device is set under the normal operating state; when the display enters into a power-down mode or an off mode, a microcontroller of the display controls a power control unit of the external device circuit so as to power the external device circuit and the connected external device continuously, and controls the external device circuit and the external device to maintain the normal operating state; and when the display enters into the power-down mode or the off mode, the problem that the operation of the external device fails due to the power failure of the external device connected with the display is prevented.
Description
Technical field
The present invention relates to a kind of external connection device control method, especially relate to a kind of control method that is connected in external device on the display.
Background technology
Along with the universalness that USB, IEEE 1394 (firewire) etc. has hot plug and is connected in series the interface of extendibility (seriesexpandability), the external device of using this class interface is also more and more diversified.With the USB external device is example, the usb connecting port of known computer is positioned at the back side/front of main frame, and for more convenient use USB external device (also because USB interface support polyphone extendibility), on user's interface arrangement (as display, keyboard even mouse), also begin to be provided with the expansion port that can connect the USB device now, make the more convenient use of USB external device of supporting hot plug and polyphone extendibility.
Generally speaking, because these USB external devices are connected to main frame by display, the power supply supply to USB external device circuit is also controlled in the power supply control of display.In other words, the known USB external device that is connected on the display can fail along with the closing (or display enters sleep state) of display power supply, does like this and brings many inconvenience can for the user when connecting use USB external device by display.For example be connected in USB interface CD writer on the display in burning or transmission during data, display power supply is closed (or entering sleep state) can cause the CD writer power-off simultaneously, so that interrupt the transmission of data.For example use the wireless network card of USB interface or the sound card of USB interface again, if be connected in the usb connecting port on the display, then in order to make the normal operation of wireless network or computing machine audio function energy, display must be kept the state of unlatching for a long time, in case when causing unnecessary power consumption of display or display to enter sleep state or closed condition like this, can cause the problem of wireless network interruption or audio disabler.
Summary of the invention
The invention provides a kind of external connection device control method of display, wherein a display has an external device circuit, be used for connecting an external device, this display also has a microcontroller, be used for controlling this display and this external device setting or break away from a normal operation state, comprise following step: when this external device connects this external device circuit, this external device is set in this normal operation state; And when this display of this microprocessor controls breaks away from this normal operation state, this external device is set in this normal operation state.
The present invention also provides a kind of external connection device control method of display, wherein a display has an external device circuit, be used for connecting an external device, this display also has a microcontroller, be used for controlling this display and this external device circuit setting or break away from a normal operation state, this method comprises step: when this display is arranged at this normal operation state, this external device circuit is set in this normal operation state; And when this display of this microprocessor controls breaks away from this normal operation state, this external device circuit is set in this normal operation state.
Description of drawings
Fig. 1 is a kind of method flow diagram of controlling the display external device of the present invention.
Fig. 2 is for using the synoptic diagram of the present invention's one display system.
The reference numeral explanation
10 display systems, 20 displays
30 interface cards, 32 microcontrollers
34 screen control circuits, 40 external device circuit
45 power control units, 50 power circuits
60 external device S100-S160 steps
Embodiment
Fig. 1 is a kind of method flow diagram of controlling the display external device of the present invention, and Fig. 2 is then for using a display system 10 synoptic diagram of method of the present invention.Display system 10 is controlled the power supply or the function of an external device 60 with the control mode that is independent of a display 20.Method step is as follows:
Step S100: the power supply of opening display 20, display 20 enter a normal operation state, and the function of the external device circuit 40 on the display 20 is also enabled the normal operation state that enters simultaneously;
Step S110: detect an external device 60 that is connected in external device circuit 40;
Step S120: on display 20, start external device 60 independent controls and set;
Step S140: display 20 enters power down mode (standby mode) or closed condition (poweroff mode);
Step S160: control external device circuit 40 maintains this normal operation state.
Before display 20 power supplys were not opened, a power circuit 50 on the display 20 (it is used for alternating current is converted to DC current and offers display 20) can power supply be given an interface card 30 (it has a microcontroller 32) of controlling display 20 and external device circuit 40.But owing to display 20 power supplys are not opened, so microcontroller 32 can not produce any signal to display 20 and external device circuit 40.Behind display 20 electric power startings in step S100, microcontroller 32 control displays 20 enter the normal operation state that can show video signal, the function that is arranged at external device circuit 40 is simultaneously also controlled by microcontroller 32 and is enabled, that is external device circuit 40 also enters a normal operation state, external device circuit 40 can be operated external device 60 power supplies and control external device 60 when connecting external device 60.Therefore wherein external device circuit 40 and external device 60 meet universal serial bus (universal serial bus, USB) specification or IEEE 1394 specifications have features such as hot plug and serial connection extendibility.
Owing to the invention provides and a kind ofly can independently control the power supply of external device 60 on the display 20 and the method for function, therefore can set power supply or function that whether display 20 enters independent control external device 60, by a screen control circuit 34 (on screen display, OSD), the user can set the independent control (as step S120) that starts external device 60 power supplys and function under the situation that display 20 is opened.After this independent control function starts, then behind a Preset Time, break away from this normal operation state when display 20, enter power down mode or closed condition, or when directly closing display 20 power supplys by the user (step S140), microcontroller 32 can be provided with external device circuit 40 and continue to maintain in this normal operation state (step S160).In other words, microcontroller 32 can control external device circuit 40 on a power control unit 45 continue to external device 60 power supplies and control external device 60 runnings, the function of enabling external device circuit 40 as microcontroller 32 among the step S100.Therefore can reach when display 20 enters power down mode or closed condition, but be connected in external device 60 purpose of normal operation still on the display 20.If the user is under the situation that display 20 is opened, do not set the independent control that starts external device 60 power supplys and function (promptly not execution in step S120), then behind a Preset Time, break away from this normal operation state when display 20, enter power down mode or closed condition, or when directly closing display 20 power supplys (step S140) by the user, external device 60 these normal operating conditionss of disengaging that microcontroller 32 is also controlled external device circuit 40 and connected are to reach the power saving purpose.
Among this external step S110, when external device 60 connects external device circuit 40 (it provides a connectivity port to be electrically connected for external device 60), microcontroller 32 confirms that by external device 60 and external device circuit 40 formed electric power loops or a signal channel external device 60 is connected in external device circuit 40.Therefore, be hinged with circuits 40 outside and be set at this normal operation state following time, microcontroller 32 can be arranged at this normal operation state with the external device 60 that is connected in external device circuit 40 by detecting this electric power loop or this signal channel.
The function that the present invention independently controls by external device power supply and display on the setting of the screen control circuit in the display system display.Be under the normal operation state at display, behind an external device circuit of external device connection display, this external device be set in the normal operation state.When display enters power down mode or closed condition, power control unit in the display system in this external device circuit of a microprocessor controls continues this external device power supply to this external device circuit and connection, and controls this external device circuit and this external device is kept the normal operation state.When display enters power saving or closed condition, can prevent to be connected in external device on the display causes the external device operational failure because of outage problem.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. the external connection device control method of a display, wherein a display has an external device circuit, is used for connecting an external device, and this display also has a microcontroller, be used for controlling this display and this external device setting or break away from a normal operation state, this method comprises step:
When this external device connects this external device circuit, this external device is set in this normal operation state; And
When this display of this microprocessor controls breaks away from this normal operation state, this external device is set in this normal operation state.
2. the method for claim 1, wherein when this external device connects this external device circuit, this external device is set comprises step in this normal operation state: detect this external device and be connected in the formed electric power loop of this external device circuit, this microcontroller is provided with this external device in this normal operation state by detecting this electric power loop.
3. the method for claim 1, wherein when this external device connects this external device circuit, this external device is set comprises step in this normal operation state: detect this external device and be connected in the formed signal channel of this external device circuit, this microcontroller is provided with this external device in this normal operation state by detecting this signal channel.
4. the method for claim 1, wherein when this display of this microprocessor controls breaks away from this normal operation state, this external device is set comprises step in this normal operation state: a power control unit of controlling on this external device circuit is powered to this external device.
5. the external connection device control method of a display, wherein a display has an external device circuit, be used for connecting an external device, this display also has a microcontroller, be used for controlling this display and this external device circuit setting or break away from a normal operation state, this method comprises step:
When this display is arranged at this normal operation state, this external device circuit is set in this normal operation state; And
When this display of this microprocessor controls breaks away from this normal operation state, this external device circuit is set in this normal operation state.
6. method as claimed in claim 5, wherein when this display is arranged at this normal operation state, this external device circuit is set comprises step in this normal operation state: when this external device connected this external device circuit and forms an electric power loop, this microcontroller was provided with this external device in this normal operation state by detecting this electric power loop.
7. method as claimed in claim 5, wherein when this display is arranged at this normal operation state, this external device circuit is set comprises step in this normal operation state: when this external device connected this external device circuit and forms a signal channel, this microcontroller was provided with this external device in this normal operation state by detecting this signal channel.
8. method as claimed in claim 5, wherein when this display of this microprocessor controls breaks away from this normal operation state, this external device circuit is set comprises step in this normal operation state: a power control unit of controlling on this external device circuit is powered to this external device.
9. method as claimed in claim 5, wherein this display can be arranged at a normal operation state, a power down mode, a closed condition thrin, when this display of this microprocessor controls breaks away from this normal operation state, it is when this microcontroller is provided with this display in this power down mode in this normal operation state that this external device circuit is set, and this external device circuit is set in this normal operation state.
10. method as claimed in claim 5, wherein this display can be arranged at a normal operation state, a power down mode, a closed condition thrin, when this display of this microprocessor controls breaks away from this normal operation state, it is when this microcontroller is provided with this display in this closed condition in this normal operation state that this external device circuit is set, and this external device circuit is set in this normal operation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100019318A CN101477397A (en) | 2008-01-03 | 2008-01-03 | External connection device control method of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100019318A CN101477397A (en) | 2008-01-03 | 2008-01-03 | External connection device control method of display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101477397A true CN101477397A (en) | 2009-07-08 |
Family
ID=40838123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100019318A Pending CN101477397A (en) | 2008-01-03 | 2008-01-03 | External connection device control method of display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101477397A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656541A (en) * | 2010-01-21 | 2012-09-05 | 密克罗奇普技术公司 | External device power control during low power sleep mode without central processing unit intervention |
| CN110262652A (en) * | 2019-05-31 | 2019-09-20 | 联想(北京)有限公司 | A kind of electronic equipment and its screen locking method |
| CN110610689A (en) * | 2019-09-20 | 2019-12-24 | 合肥惠科金扬科技有限公司 | Voltage distribution method and device of display interface and display equipment |
| CN111176417A (en) * | 2019-12-30 | 2020-05-19 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN111459435A (en) * | 2020-03-31 | 2020-07-28 | 联想(北京)有限公司 | Electronic device and control method |
-
2008
- 2008-01-03 CN CNA2008100019318A patent/CN101477397A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656541A (en) * | 2010-01-21 | 2012-09-05 | 密克罗奇普技术公司 | External device power control during low power sleep mode without central processing unit intervention |
| CN102656541B (en) * | 2010-01-21 | 2016-06-29 | 密克罗奇普技术公司 | The external device (ED) Electric control intervened without CPU in low power sleep mode |
| CN110262652A (en) * | 2019-05-31 | 2019-09-20 | 联想(北京)有限公司 | A kind of electronic equipment and its screen locking method |
| CN110610689A (en) * | 2019-09-20 | 2019-12-24 | 合肥惠科金扬科技有限公司 | Voltage distribution method and device of display interface and display equipment |
| CN111176417A (en) * | 2019-12-30 | 2020-05-19 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN111176417B (en) * | 2019-12-30 | 2022-03-25 | 联想(北京)有限公司 | Electronic device and information processing method |
| CN111459435A (en) * | 2020-03-31 | 2020-07-28 | 联想(北京)有限公司 | Electronic device and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6274949B1 (en) | Back-up power accessory for a computer | |
| US7853815B2 (en) | Method and apparatus for controlling power supply in a computer system under low power consumption mode | |
| CN101859173B (en) | Electronic device for reducing power consumption during sleep mode of computer motherboard and motherboard thereof | |
| US8862916B2 (en) | Wireless control of power sockets based on host and signal quality | |
| US9021288B2 (en) | Method and apparatus for recovery from low power state | |
| CN101299678B (en) | Method and system for implementing electrification of interface plate in open application structure | |
| JP2011503692A (en) | Configuration comprising first electronic device and power supply unit, and operation method of electronic device | |
| CN203366017U (en) | Building talk-back intelligent terminal and crash restart system for same | |
| US8719608B2 (en) | Control apparatus for a computer, main board and computer | |
| JP2010108423A (en) | Information processor | |
| CN101539796A (en) | Method for automatically turning on or turning off display and display capable of being automatically turned on or turned off | |
| CN104520783A (en) | Standby power interception apparatus for computer and computer peripheral device | |
| CN102778943A (en) | State control method and device and portable terminal | |
| CN101477397A (en) | External connection device control method of display | |
| TW201028838A (en) | Standby power-saving system and computer power-on & power-off method thereof | |
| US20070206019A1 (en) | Computer having removable input/output device | |
| CN105929922A (en) | Electronic device | |
| CN201352831Y (en) | Liquid crystal television multi-signal wake-up circuit with ultra-low power consumption | |
| CN102314194A (en) | Portable computer | |
| CN101661319A (en) | Power socket device and method for controlling same | |
| CN101826685B (en) | Power supply socket device special for computer | |
| CN101526841B (en) | Computer system and power saving method | |
| KR100965611B1 (en) | Stand-by power saving apparatus for pc | |
| TW200947197A (en) | An interactive auto-power-saving switch assembly | |
| WO2011098000A1 (en) | Power adapter and portable computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090708 |