CN1243315C - Computer system possessing optical drive feed-return chip control circuit - Google Patents
Computer system possessing optical drive feed-return chip control circuit Download PDFInfo
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- CN1243315C CN1243315C CN 03110651 CN03110651A CN1243315C CN 1243315 C CN1243315 C CN 1243315C CN 03110651 CN03110651 CN 03110651 CN 03110651 A CN03110651 A CN 03110651A CN 1243315 C CN1243315 C CN 1243315C
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- sheet
- rom drive
- retreat
- advance
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Abstract
The present invention relates to a computer system having a circuit for controlling an optical driver to feed and withdraw disks. The computer system comprises a host board and a key, wherein the host board is electrically connected with an optical driver to control the optical driver for feeding and withdrawing disks, the key is arranged on the shell of the computer system and is electrically connected with the host board. The key can be pressed to send a control signal to the host board, the host board can control the optical driver to execute a disk feeding action or a disk withdrawing action according to the control signal, and therefore, the state of the optical driver is changed. Therefore, the disk feeding action and the disk withdrawing action of the optical driver can be executed by software in a mode similar to hardware under the condition without the support of a window operation system, without the detection of the disk feeding and withdrawing state of the optical driver and without the use of the disk feeding and withdrawing key of the optical driver. The efficiencies of reaction time shortening, convenient operation, etc., are achieved.
Description
[technical field]
The present invention relates to a kind of CD drive advance and retreat patch control circuit, be meant especially and a kind ofly need do not detect action, need not use the advance and retreat sheet key of CD-ROM drive itself and not need the computer system with CD drive advance and retreat patch control circuit of Windows support.
[background technology]
In the past in the time will making the CD drive advance and retreat CD video disc that is arranged on the main frame, the simplest method is exactly the advance and retreat sheet key of directly pressing on the control panel of CD-ROM drive, at this moment can to detect CD-ROM drive be at present after advancing sheet or moving back the sheet state in the internal circuit loop of CD-ROM drive, make CD-ROM drive carry out the action of advance and retreat sheet again, therefore, in order to allow the user conveniently push this advance and retreat sheet key, the control panel of CD-ROM drive must outer be exposed at outside the computer host machine casing, but so, with regard to the computer host machine integral outward appearance, but can destroy the aesthetic feeling of whole computer host machine casing.So, in order to promote aesthetic feeling, therefore A designer person on computer host machine casing corresponding to CD-ROM drive storage tank opening part, one shifting board is set the control panel of CD-ROM drive is covered in, thus, when user's desire utilizes the control panel of CD-ROM drive to advance and retreat the sheet operation, just must open or remove this shifting board earlier, so that when the user often will operate this control panel, just this shifting board of switch repeatedly caused the inconvenience in the use.
In addition, except above-mentioned hardware controls advance and retreat sheet mode, the user also can carry out the CD drive advance and retreat patch action in the software control mode via computer window operating system, at this moment, it be to advance the sheet state or moving back the sheet state that Windows can earlier detect CD-ROM drive, and then issues orders and allow CD-ROM drive carry out the action of advance and retreat sheet.But, because this kind mode need just can be finished through the detection of the numerous and diverse order of Windows and the support of differentiation and driver, need to wait for the long reaction time, and can't under other operating system, (for example DOS) carry out, also inconvenient for the user.
[summary of the invention]
The object of the present invention is to provide a kind of computer system with CD drive advance and retreat patch control circuit, the advance and retreat sheet key that it does not need complicated Windows to detect step and need not use CD-ROM drive itself just can be to make CD drive advance and retreat patch near the hardware controls mode.
So the present invention has the computer system of CD drive advance and retreat patch control circuit, comprise a motherboard and a button.This motherboard is electrically connected with this CD-ROM drive, in order to control this CD drive advance and retreat patch.This button is electrically connected with this motherboard, and this button can be pressed and give this motherboard to send a control signal, makes it control this CD-ROM drive according to this control signal and carries out into sheet or move back one of them action of sheet, thereby change the state of this CD-ROM drive.Therefore, can not need the Windows support, need not detect the CD drive advance and retreat patch state and need not use under the situation of advance and retreat sheet key of CD-ROM drive itself, carry out the advance and retreat sheet action of CD-ROM drive by software to approach hardware mode, and reach effects such as shortening reaction time and convenient use.
[description of drawings]
Below by most preferred embodiment and accompanying drawing the computer system that the present invention has the CD drive advance and retreat patch control circuit is elaborated, in the accompanying drawing:
Fig. 1 is the circuit block diagram of first embodiment of the computer system of the present invention with CD drive advance and retreat patch control circuit.
Fig. 2 is the circuit block diagram of second embodiment of the computer system of the present invention with CD drive advance and retreat patch control circuit.
[embodiment]
In detailed description, can be expressly understood aforementioned and other technology contents, characteristics and effect of the present invention below in conjunction with the embodiment of accompanying drawing.
Consulting shown in Figure 1ly, is first embodiment that the present invention has the computer system 1 of CD drive advance and retreat patch control circuit, and it mainly comprises a motherboard 2 and a button 3.
Motherboard 2 is main is responsible for being communicated with of its central processing units, internal memory and display card and peripheral interface, and CD-ROM drive 4 of the present invention is to be located on the host machine casing (not shown) of a desk-top computer for group, it is electrically connected with the motherboard 2 of computing machine usually, to be carried out such as advance and retreat sheet or broadcast actions such as (play) by motherboard 2 control CD-ROM drives 4.And in fact, CD-ROM drive 4 is to be connected on the motherboard 2 in order to control the South Bridge chip 21 of peripheral unit by an IDE on the motherboard 2 (Integrated Drive Electronics, integrated drive circuit) interface 20.And, CD-ROM drive 4 itself has a control panel (not shown), and on this control panel, be typically provided with an advance and retreat sheet key, but as described in " background technology " part, for making the host machine casing overall appearance, some host machine casing in the past can hide with the control panel of a shifting board with CD-ROM drive 4, so that CD-ROM drive 4 is hidden in the host machine casing.
And button 3 of the present invention is to be arranged in addition on the host machine casing (not shown) of computer system (desk-top computer) 1, and be electrically connected with South Bridge chip 21 on the motherboard 2, and the invention is characterized in: when CD-ROM drive 4 is hidden in the computer host machine casing, as shown in Figure 1, but user's pressing keys 3, button 3 will send a control signal to South Bridge chip 21 this moment, order about a GP I/O (the General Purpose I/O of South Bridge chip 21, general purpose I/O control signal wire) sends a SMI (System Management Interrupt, system management interrupt) signal is given central processing unit (CPU) and Basic Input or Output System (BIOS) (BIOS), make BIOS send " advancing sheet " and " moving back sheet " two ATAPI (Advanced Technology Attachment Packet Interface continuously via South Bridge chip 21 and ide interface 20, AT additional packets interface) CD-ROM drive 4 is given in order, and makes CD-ROM drive 4 produce following situation:
1. if CD-ROM drive 4 is in and advances the sheet state, then when CD-ROM drive 4 is received these two ATAPI orders, because CD-ROM drive 4 is in into sheet state, order is just not performed by CD-ROM drive 4 so first " advances sheet ", and the next one that continues " moves back sheet " when order, and CD-ROM drive 4 will be carried out this order and move back the sheet action.
2. if CD-ROM drive 4 is in and moves back the sheet state, then when CD-ROM drive 4 is received first order of " advancing sheet ", just carry out the sheet action, order and in carrying out the sheet process, skip over second " moving back sheet ".
Therefore, by the explanation of above-mentioned first embodiment as can be known, when button 3 is pressed, will produce a control signal and give South Bridge chip 21, make its notice BIOS send two continuous " advancing sheet " and reach " moving back sheet " order control CD-ROM drive 4, and need and need not use under the situation of advance and retreat sheet key of CD-ROM drive 4 itself through the detection step of Windows, make CD-ROM drive 4 carry out " advancing sheet " action under the sheet state moving back, or advancing to carry out " moving back sheet " action under the sheet state.
Then with reference to shown in Figure 2, it is the second embodiment of the present invention, what they were different with first embodiment is, in the BIOS of motherboard 2, more be provided with the advance and retreat sheet state of a flag buffer 23 in order to the record CD-ROM drive, for example, when CD-ROM drive advanced sheet, BIOS 22 can be made as 0 (sheet is advanced in expression) with the state value of flag, when CD-ROM drive moved back sheet, the state value that BIOS 22 is about to flag was made as 1 (moving back sheet).And generally computing machine is when a start, and CD-ROM drive should be in and advance the sheet state, and this moment, the initial value of flag state value was first state value 0.So, when user's desire makes CD-ROM drive 4 move back sheet and during pressing keys 3, button 3 is sent a control signal and is given South Bridge chip 21, make it send the state value that smi signal notice BIOS 22 changes flag, for example, the state value of flag is become second state value 1 (moving back the sheet state) by first state value 0 (advancing the sheet state), BIOS 22 sends one " moving back sheet " order according to the state value (1) of flag then, and deliver to CD-ROM drive 4 by South Bridge chip 21 and ide interface 20, make its execution move back the action of sheet.Similarly, when the user desires to make CD-ROM drive 4 to advance sheet and once more during pressing keys 3, flag will become first state value 0 by second state value 1, and BIOS 22 sends one " advancing sheet " order according to the state value (0) of flag and gives CD-ROM drive 4, makes it carry out the into action of sheet.Finish the advance and retreat sheet control of CD-ROM drive 4 thus.
By the explanation of above-mentioned second embodiment as can be known, by the advance and retreat sheet state of a flag buffer 23 record CD-ROM drives 4 is set in BIOS 22, the feasible state value that when button 3 is pressed, will change flag, and making BIOS 22 produce corresponding advance and retreat sheet order according to the state value of flag, control CD-ROM drive 4 is carried out the action of advance and retreat sheet.
So, utilize the present invention to have the computer system 1 of CD drive advance and retreat patch control circuit, when the control panel of CD-ROM drive 4 is hidden in the main frame, just can utilize the button 3 control CD-ROM drives 4 advance and retreat sheets that are located on the computer host machine casing easily, and because the present invention saves the detection step of CD-ROM drive 4, can shorten the reaction time of CD-ROM drive 4, and have the effect that is similar to hardware controls CD-ROM drive 4.
In sum, the present invention has the computer system 1 of advance and retreat sheet control circuit, when CD-ROM drive 4 is hidden in main case of computer inside, provide a button 3 that is located on the host machine casing to push for the user, and send control signal, the BIOS 22 of notice motherboard 2 produces the software control mode of suitable advance and retreat sheet order with the control CD drive advance and retreat patch, not only do not need the support of Windows, and do not have numerous and diverse order and detect step, the reaction time of CD-ROM drive 4 is effectively shortened, and has the effect of the hardware controls of approaching, and the present invention also can free operant under other operating system (for example DOS), unrestricted, for the user,, be a selection more easily really than aforementioned mode of operation in the past.
Claims (4)
1, a kind of computer system with CD drive advance and retreat patch control circuit, wherein,
This computer system comprises:
One motherboard is electrically connected with this CD-ROM drive, in order to control this CD drive advance and retreat patch; And
One button is electrically connected with this motherboard, and this button can be pressed and give this motherboard to send a control signal, makes it control the state that this CD-ROM drive is carried out sheet into or moved back this CD-ROM drive of sheet one of them action the change according to this control signal;
Wherein, this control signal is to deliver to the South Bridge chip of this motherboard, make its Basic Input or Output System (BIOS) of notifying this motherboard send " advancing sheet " and " moving back sheet " two orders continuously and give this CD-ROM drive, make and be in this CD-ROM drive that moves back the sheet state and carry out into the sheet action, or this CD-ROM drive that makes the sheet state into of being in carries out and moves back the sheet action, thereby changes the advance and retreat sheet state of this CD-ROM drive.
2, a kind of computer system with CD drive advance and retreat patch control circuit, wherein,
This computer system comprises:
One motherboard is electrically connected with this CD-ROM drive, in order to control this CD drive advance and retreat patch; And
One button is electrically connected with this motherboard, and this button can be pressed and give this motherboard to send a control signal, makes it control the state that this CD-ROM drive is carried out sheet into or moved back this CD-ROM drive of sheet one of them action the change according to this control signal;
Wherein, also be provided with a flag buffer in the Basic Input or Output System (BIOS) of this motherboard in order to write down this CD drive advance and retreat patch state, and this control signal is to deliver to the South Bridge chip of this motherboard, the flag state value that makes it notify this Basic Input or Output System (BIOS) to change this flag buffer, and give this CD-ROM drive according to the control command that this flag state value sends a correspondence, when this flag state value is one first state value, make and be in this CD-ROM drive that moves back the sheet state and carry out into the sheet action, this CD-ROM drive of the sheet state into of being in is carried out moved back the sheet action, thereby change the advance and retreat sheet state of this CD-ROM drive.
3, the computer system that has the CD drive advance and retreat patch control circuit as claimed in claim 1 or 2, wherein, this button is provided in a side of on the host machine casing of this computer system.
4, the computer system that has the CD drive advance and retreat patch control circuit as claimed in claim 1 or 2, wherein, this computer system is a computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110651 CN1243315C (en) | 2003-04-18 | 2003-04-18 | Computer system possessing optical drive feed-return chip control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03110651 CN1243315C (en) | 2003-04-18 | 2003-04-18 | Computer system possessing optical drive feed-return chip control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1538313A CN1538313A (en) | 2004-10-20 |
| CN1243315C true CN1243315C (en) | 2006-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03110651 Expired - Lifetime CN1243315C (en) | 2003-04-18 | 2003-04-18 | Computer system possessing optical drive feed-return chip control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1243315C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1959826B (en) * | 2006-11-09 | 2011-06-22 | 凌阳科技股份有限公司 | Control circuit of limit switch in optical disk drive, and control method |
| CN101826350B (en) * | 2009-03-05 | 2012-05-30 | 纬创资通股份有限公司 | Electronic device with CD-ROM drive and application thereof |
-
2003
- 2003-04-18 CN CN 03110651 patent/CN1243315C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1538313A (en) | 2004-10-20 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: MSI Computer (Shenzhen) Co.,Ltd. Assignor: MICRO-STAR INTERNATIONAL CO.,LTD. Contract fulfillment period: 2008.3.25 to 2016.3.25 Contract record no.: 2009990000088 Denomination of invention: Computer system possessing optical drive feed-return chip control circuit Granted publication date: 20060222 License type: Exclusive license Record date: 20090216 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.3.25 TO 2016.3.25; CHANGE OF CONTRACT Name of requester: WEIMENG ELECTRONIC ( KUNSHAN ) CO., LTD. Effective date: 20090216 |
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| CX01 | Expiry of patent term |
Granted publication date: 20060222 |
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| CX01 | Expiry of patent term |