CN1584781A - Circuit device for combined cold starting key on portable data products - Google Patents
Circuit device for combined cold starting key on portable data products Download PDFInfo
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- CN1584781A CN1584781A CN 03154632 CN03154632A CN1584781A CN 1584781 A CN1584781 A CN 1584781A CN 03154632 CN03154632 CN 03154632 CN 03154632 A CN03154632 A CN 03154632A CN 1584781 A CN1584781 A CN 1584781A
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- circuit
- key
- cold boot
- portable message
- processing unit
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Abstract
A circuit device to form cold start up key for portable device consists of on/off key for cutting off or switching on the first circuit and hot start up key for cutting off or switching on the second circuit. It features that two keys are pressed down simultaneously to cut off two circuit for connecting on a switch driving circuit to realize cold start up portable data device.
Description
Technical field
The present invention relates to a kind of circuit arrangement in the portable message product, refer in particular to a kind of circuit arrangement that has synthetic cold boot key at the portable message product.
Background technology
Along with IT industry is constantly progressive, the portable message device product is universal day by day on market, yet in the start mode of portable message device product three kinds of modes are arranged: start shooting again mode, heat start key of Pause key (on/offkey) recovered start mode and the cold boot key mode of starting shooting again.Wherein, Pause key start mode is to interrupt signal, wakes the system in stopping up; Heat start key start mode again be when starting shooting again still the retention system information and remove the data that is temporary in the storer in storer; Cold boot key start mode again is to remove system information all in storer when starting shooting again.And in existing portable message device product, cold boot key start mode again is to be realized by the reset button (ResetKey) of hardware or the mode of cutting off the electricity supply (battery is disassembled).Other increases that a reset button must be opened the replacement keyhole on casing and the complicacy that increases mechanism; and the mode of cutting off the electricity supply is very inconvenient for the user, again, and for general vast user; there are a lot of people usually to obscure the function of heat start key and cold boot key, also cause the inconvenience in the use.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of portable message product to have the circuit arrangement of synthetic cold boot key, expanding the function of original key, need not to be provided with separately the cold boot key, reduces product complexity and makes things convenient for the user to use.
For realizing above-mentioned purpose, of the present invention a kind ofly have the circuit arrangement of synthetic cold boot key at the portable message product, mainly comprises:
One first on-off circuit is to control its conducting and cut-out by Pause key; One second switch circuit is to be connected with this first on-off circuit, and this second switch circuit is to control conducting and cut-out by heat start key; One switch driving circuit, be and connect this two on-off circuit, and its output terminal is connected in the replacement pin of central processing unit, and serving as when cutting off simultaneously when this first and second on-off circuit, this switch driving circuit is switched on and produces a signal at output terminal and come this portable message device product of cold boot.
The described circuit arrangement that has synthetic cold boot key at the portable message product, wherein the Pause key that connected of this first on-off circuit provides a sleep mode function, when promptly suspending, the last information of system is stored in the storer, after waiting recovering start again, screen demonstrates the last information of system before the shutdown at once.
The described circuit arrangement that has synthetic cold boot key at the portable message product, wherein the heat start key that connected of this second switch circuit is in order to when system starts shooting again, to central processing unit send a look-at-me with the retention system information in storer, and remove the temporary transient data be stored in the storer.
Described have the circuit arrangement of synthetic cold boot key at the portable message product, and wherein first, second on-off circuit and this switch driving circuit are made up of a N type metal-oxide-semifield-effect electric crystal respectively.
Described have the circuit arrangement of synthetic cold boot key at the portable message product, and wherein the drain in this first, second on-off circuit is to connect together, and be connected with gate in this switch driving circuit.
Described have the circuit arrangement of synthetic cold boot key at the portable message product, wherein all direct ground connection of the source electrode of this first, second on-off circuit and this switch driving circuit.
Described have the circuit arrangement of synthetic cold boot key at the portable message product, and wherein this first on-off circuit has a circuit to be connected to look-at-me first pin of central processing unit, so that for this central processing unit is sent the look-at-me of replacement.
Described have the circuit arrangement of synthetic cold boot key at the portable message product, and wherein this second switch circuit has a circuit to be connected to look-at-me second pin of central processing unit, so that for this central processing unit is sent look-at-me.
The invention has the advantages that, realize the effect of cold boot jointly, reduction product complexity and make things convenient for the user to use with Pause key and heat start key.
Description of drawings
For enabling to further specify structure of the present invention, feature and purpose thereof, the attached now detailed description with accompanying drawing and preferred embodiment is as the back:
Fig. 1 shows circuit arrangement synoptic diagram of the present invention.
Embodiment
Relevant portable message product of the present invention has the circuit arrangement of synthetic cold boot key, please be earlier with reference to circuit arrangement synoptic diagram shown in Figure 1, and it mainly is made up of first on-off circuit 1, second switch circuit 2 and switch driving circuit 3.Wherein, first on-off circuit 1 has a Pause key 11, and second switch circuit 2 has a hot key 21 of starting shooting, and Pause key 11 is that the automatic spring of meeting be the keyswitch of original state after a kind of the pushing with heat start key 21.
Aforesaid first on-off circuit 1 is to comprise the look-at-me line 12 that a N type MOS field-effect electric crystal 4 and is connected to look-at-me first pin of central processing unit, and this first on-off circuit, 1 conducting and cut-out are to be controlled by this Pause key 11.This second switch circuit 2 is to be connected in parallel with first on-off circuit 1, and it also comprises the look-at-me line 22 that a N type MOS field-effect electric crystal 4 and is connected to look-at-me second pin of central processing unit, its conducting and cut-out are to be controlled by heat start key 21, wherein, the drain of the N type MOS field-effect electric crystal 4 of this first on-off circuit 1, second switch circuit 2 connects together.This switch driving circuit 3 is and connects this first on-off circuit 1 and second switch circuit 2, and it also comprises a N type MOS field-effect electric crystal 4, wherein, the source electrode of the N type MOS field-effect electric crystal 4 of this first on-off circuit 1, second switch circuit 2 and this switch driving circuit 3 is ground connection all directly, and the output terminal of this switch driving circuit 3 is the replacement pins that are connected to the electronegative potential conducting of central processing unit.
The Pause key 11 of first on-off circuit 1 when not pushing, N type MOS field-effect electric crystal 4 conductings of first on-off circuit 1, look-at-me line 12 is a noble potential; When Pause key 11 is pushed, the N type MOS field-effect electric crystal 4 of first on-off circuit 1 is closed, look-at-me line 12 is an electronegative potential at this moment, and activation central processing unit (figure does not show), that is the first look-at-me pin of a look-at-me to central processing unit sent in the action of the electronegative potential by look-at-me line 12 (ActiveLow), and the system that makes enters halted state (sleep pattern), can make the system recovery start if push a Pause key again, suspend preceding state and return back to rapidly, when system halt, the last information of system is to be stored in the storer, and screen can demonstrate the preceding last information of system of shutdown at once to wait recovering to start shooting afterwards.
The heat start key 21 of second switch circuit 2 is not pushed constantly, and look-at-me line 22 is a noble potential; When Pause key 21 is pushed, the N type MOS field-effect electric crystal 4 of second switch circuit 2 is closed, look-at-me line 22 is an electronegative potential at this moment, and activation central processing unit (figure does not show), that is the second look-at-me pin of look-at-me to central processing unit sent in the action of the electronegative potential by look-at-me line 12, make system information still remain in the storer, and remove the temporary transient data be stored in the storer, to realize traditional heat start key mode of starting shooting again.
When simultaneously when depressing Pause key 11 and heat start key 21, first on-off circuit 1 cuts out all simultaneously with the MOS field-effect electric crystal 4 of second switch circuit 2, and make MOS field-effect electric crystal 4 conductings of this switch driving circuit 3, and cause output terminal is electronegative potential, the replacement pin electronegative potential that is connected to central processing unit with order moves, and realizes the cold boot effect.
As known from the above, the present invention realizes the cold boot function to depress first on-off circuit 1 simultaneously with second switch circuit 2, wherein, this first on-off circuit 1 is to have the function that a Pause key 11 comes control system to suspend, and can realize that Pause key recovers the start mode if only push Pause key 11, this second switch circuit 2 is to have a heat start key 21 to control this second switch circuit 2 and be conducting or cut-out, and can reach the heat start key mode of starting shooting again if only push this heat start key 21.
It should be noted that above-mentioned many embodiment are convenient to explanation and are given an example, the interest field that the present invention advocated is from should be being as the criterion according to claim is described, but not only limits to the foregoing description.
Claims (8)
1, a kind of have the circuit arrangement of synthetic cold boot key at the portable message product, it is characterized in that, mainly comprises:
One first on-off circuit is to control its conducting and cut-out by Pause key;
One second switch circuit is to be connected with this first on-off circuit, and this second switch circuit is to control conducting and cut-out by heat start key;
One switch driving circuit, be and connect this two on-off circuit, and its output terminal is connected in the replacement pin of central processing unit, and serving as when cutting off simultaneously when this first and second on-off circuit, this switch driving circuit is switched on and produces a signal at output terminal and come this portable message device product of cold boot.
2, the circuit arrangement that has synthetic cold boot key at the portable message product according to claim 1, it is characterized in that, wherein the Pause key that connected of this first on-off circuit provides a sleep mode function, when promptly suspending, the last information of system is stored in the storer, after waiting recovering start again, screen demonstrates the last information of system before the shutdown at once.
3, the circuit arrangement that has synthetic cold boot key at the portable message product according to claim 1, it is characterized in that, wherein the heat start key that connected of this second switch circuit is in order to when system starts shooting again, to central processing unit send a look-at-me with the retention system information in storer, and remove the temporary transient data be stored in the storer.
4, according to claim 1 have the circuit arrangement of synthetic cold boot key at the portable message product, it is characterized in that wherein first, second on-off circuit and this switch driving circuit are made up of a N type metal-oxide-semifield-effect electric crystal respectively.
5, according to claim 4 have the circuit arrangement of synthetic cold boot key at the portable message product, it is characterized in that wherein the drain in this first, second on-off circuit is to connect together, and be connected with gate in this switch driving circuit.
6, according to claim 4 have the circuit arrangement of synthetic cold boot key at the portable message product, it is characterized in that, wherein all direct ground connection of the source electrode of this first, second on-off circuit and this switch driving circuit.
7, the circuit arrangement that has synthetic cold boot key at the portable message product according to claim 1, it is characterized in that, wherein this first on-off circuit has a circuit to be connected to look-at-me first pin of central processing unit, so that this central processing unit is sent the look-at-me of replacement.
8, the circuit arrangement that has synthetic cold boot key at the portable message product according to claim 1, it is characterized in that, wherein this second switch circuit has a circuit to be connected to look-at-me second pin of central processing unit, so that this central processing unit is sent look-at-me.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03154632 CN1584781A (en) | 2003-08-21 | 2003-08-21 | Circuit device for combined cold starting key on portable data products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03154632 CN1584781A (en) | 2003-08-21 | 2003-08-21 | Circuit device for combined cold starting key on portable data products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1584781A true CN1584781A (en) | 2005-02-23 |
Family
ID=34597998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03154632 Pending CN1584781A (en) | 2003-08-21 | 2003-08-21 | Circuit device for combined cold starting key on portable data products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1584781A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902337A (en) * | 2011-07-29 | 2013-01-30 | 纬创资通股份有限公司 | Power supply switching system, computer system and restarting control method thereof |
| CN104081314A (en) * | 2012-07-27 | 2014-10-01 | 惠普发展公司，有限责任合伙企业 | Implementing power off state in computing device |
-
2003
- 2003-08-21 CN CN 03154632 patent/CN1584781A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902337A (en) * | 2011-07-29 | 2013-01-30 | 纬创资通股份有限公司 | Power supply switching system, computer system and restarting control method thereof |
| CN102902337B (en) * | 2011-07-29 | 2015-06-10 | 纬创资通股份有限公司 | Power supply switching system, computer system and restarting control method thereof |
| CN104081314A (en) * | 2012-07-27 | 2014-10-01 | 惠普发展公司，有限责任合伙企业 | Implementing power off state in computing device |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |