CN101345075B - Display equipment for disk drive state - Google Patents
Display equipment for disk drive state Download PDFInfo
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- CN101345075B CN101345075B CN2007101278866A CN200710127886A CN101345075B CN 101345075 B CN101345075 B CN 101345075B CN 2007101278866 A CN2007101278866 A CN 2007101278866A CN 200710127886 A CN200710127886 A CN 200710127886A CN 101345075 B CN101345075 B CN 101345075B
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- disk drive
- display unit
- status signal
- display device
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Abstract
The invention discloses a display device used for displaying the current state of a magnetic disc machine, comprising a first display unit, a second display unit and a logic unit; the first display unit displays corresponding information according to the driving of a first state signal output by a previous-step circuit; the logic unit is coupled to the second display unit; the logic unit decides whether a second state signal output by the previous-step circuit drives the second display unit according to the first state signal, and further achieving the efficacy of precisely displaying the current state of the magnetic disc machine.
Description
Technical field
The invention relates to a kind of disk drive device, and particularly relevant for a kind of disk drive state display device.
Background technology
Generally speaking, of disk drive mainly is to be used to refer to the present duty of disk drive.For example indicate the disk drive current state in failure or the data reconstruction, allow the user can know the present residing state of disk drive well.And this display device can be applied in any hardware system with disk drive, for example computer, servomechanism or multimedia play system or the like.
Figure 1A is in the explanation conventional art, the circuit block diagram of of disk drive.This display device comprises light emitting diode 101 and 102.Front stage circuits 103 is then mainly in order to produce the signal of driven for emitting lights diode 101 and 102.Light emitting diode 101,102 is respectively the diode that can show two kinds of different colours.Wherein light emitting diode 102 is one can send the diode of blue light, represents disk drive in data read state or normal condition.101 of light emitting diodes are one can send the diode of ruddiness, the state that can represent disk drive to rebuild in failure or data.The shown state of light emitting diode then is to decide by the signal that front stage circuits 103 is transmitted.In this display device, three kinds of different signals of front stage circuits 103 outputs are respectively logic high, the square wave of a logic low and a characteristic frequency, three kinds of waveforms shown in Figure 1B and 1C.
Please be simultaneously with reference to Figure 1A and Figure 1B, when the state of prime circuit 103 disk drive that detects is a normal condition, front stage circuits 103 can be given light emitting diode 101 by the high signal of output logic, makes red light emitting diodes 101 not luminous to represent that disk drive does not have unusual condition that (being normal condition) takes place.When the state of disk drive that prime circuit 103 detects is failure (fail) state, front stage circuits 103 can be given light emitting diode 101 by the output logic low signal, so can make it continue to send ruddiness by driven for emitting lights diode 101, representing the state of front stage circuits 103 disk drive that detects be status of fail.When the state of prime circuit 103 disk drive that detects is that data are rebuild (rebuild) state, front stage circuits 103 can be exported the square-wave signal of characteristic frequency and give light emitting diode 101, so can make it intermittently send red flash of light by driven for emitting lights diode 101, interior data be rebuild with the expression disk drive.
Please be simultaneously with reference to Figure 1A and Fig. 1 C, when prime circuit 103 can't detect disk drive, front stage circuits 103 can be given light emitting diode 102 by the high signal of output logics, makes blue LED 102 not luminous to represent that disk drive does not exist.When prime circuit 103 can detect disk drive, front stage circuits 103 can be given light emitting diode 102 by the output logic low signals, make it continue to send blue light so understand driven for emitting lights diode 102, and the state of representing the disk drive that detects is a normal condition.When prime circuit 103 disk drive that detects is carrying out data access, front stage circuits 103 can be exported the square-wave signal of characteristic frequency and give light emitting diode 102, so can make it intermittently send blue flash of light by driven for emitting lights diode 102, carry out data access operation with the expression disk drive.
Though front stage circuits 103 can be exported unlike signal to light emitting diode 101,102 according to the state of disk drive.And light emitting diode 101 and 102 also can be done suitable demonstration according to the signal driving.But but existing the not clear situation of some states in the practical operation produces.For example, when the state of prime circuit 103 disk drive that detects is data reconstruction (rebuild) state, because disk drive also is to be in inner partly corrupted data, must be from another disk drive access desired data in the middle of the system to rebuild disk drive.So the characteristic frequency square-wave signal that on behalf of disk drive, front stage circuits 103 rebuild except meeting output is given the light emitting diode 101, also can export the characteristic frequency square-wave signal of representing disk drive carrying out data access and give light emitting diode 102.So can driven for emitting lights diode 101,102 intermittently flash simultaneously, cause the state of present disk drive ambiguous not clear, can't differentiate.In the practical operation, there is the not clear situation of some states in example as can be known really thus.
Summary of the invention
Viewpoint of the present invention just provides a kind of display device of disk drive state, drives shinny shortcoming simultaneously for avoiding first display unit and second display unit, reaches the effect of certain reflection disk drive current state.
The present invention proposes a kind of disk drive state display device, comprises following element: first display unit, second display unit and a logical block.First display unit is exported the driving of first status signal and is shown corresponding informance according to front stage circuits.Logical block is coupled to second display unit.Whether logical block determines to allow front stage circuits export second status signal according to first status signal and removes to drive second display unit.
Whether the present invention, selects to allow second status signal remove to drive second display unit according to first status signal by logical block, to show the present mode of operation of disk drive.Therefore, avoid first, second display unit to show simultaneously and cause the state of present disk drive ambiguous not clear, can't differentiate.In procedure for displaying, accurately control the status signal of disk drive, make display unit can reflect the present residing state of disk drive really.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Fig. 1 is in the explanation conventional art, the signal graph that front stage circuits produced that the circuit block diagram of disk drive state display device is inner with device.
Fig. 2 is the display device circuit block diagram of the explanation embodiment of the invention.
Fig. 3 is the logic unit circuit calcspar of display device in the explanation embodiment of the invention.
Fig. 4 is the shift register of logical block inside in the explanation embodiment of the invention and the action principle of Sheffer stroke gate.
Fig. 5 is the display device circuit block diagram of another embodiment.
Fig. 6 is the circuit block diagram of its logical block inside.
Embodiment
Fig. 2 illustrates the circuit block diagram of disk drive state display device in the present embodiment.This disk drive state display device 200 comprises: resistance 201, first display unit 202, second display unit 203, with logical block 205.Have this field and know usually the knowledgeable can determine whether to dispose impact damper 204 between the front stage circuits 206 and first display unit 202 according to its demand, use the ability that the first status signal SS1 drives first display unit that increases.If the first status signal SS1 that front stage circuits 206 is exported has enough abilities and drives first display unit 202, then this impact damper 204 can be cancelled.In addition, have this field know usually the knowledgeable also can be according to its demand first and second display unit of accomplished in various ways.For example, present embodiment is to realize first display unit with red light emitting diodes 202, and realizes second display unit with blue LED 203.
One termination of resistance 201 is received voltage source V DD, and the other end of resistance 201 is connected in the anode of red light emitting diodes 202 and blue LED 203, is used to give anode one driving voltage of diode 202 and 203.In the present embodiment, red light emitting diodes 202 will show that disk drive is in the state of failure and data reconstruction at present.Blue LED 203 will show that disk drive is in the state of normal and data access at present.The input end of impact damper 204 is connected in front stage circuits 206 and receives the first status signal SS1 that it is exported; The output terminal of impact damper 204 is connected in the negative electrode of red light emitting diodes 202, uses the driving force that promotes 206 pairs of red light emitting diodes 202 of front stage circuits.
The first status signal SS1 that front stage circuits 206 is exported can be various signal.For example in the present embodiment, the first status signal SS1 just has three kinds of different forms.Please be simultaneously with reference to Fig. 2 and Figure 1B, when the state of prime circuit 206 disk drive that detects is normal state, front stage circuits 206 can be given red light emitting diodes 202 by the high signal of output logic, makes red light emitting diodes 202 not luminous to represent that disk drive does not have unusual condition that (being normal condition) takes place.When the state of disk drive that prime circuit 206 detects is failure (fail) state, front stage circuits 206 can be given red light emitting diodes 202 by the output logic low signal, so can drive red light emitting diodes 202 makes it continue to send ruddiness, representing the state of front stage circuits 206 disk drive that detects is status of fail.When the state of prime circuit 206 disk drive that detects is that data are rebuild (rebuild) state, front stage circuits 206 can be exported the square-wave signal of characteristic frequency and give red light emitting diodes 202, make it intermittently send red flash of light so can drive red light emitting diodes 202, interior data is rebuild with the expression disk drive.
The output terminal of logical block 205 is connected with the negative electrode of blue LED 203.The first status signal SS1 that logical block 205 is exported according to front stage circuits 206 and determine whether to allow front stage circuits 206 second status signal of exporting remove to drive blue LED 203.The internal circuit of logical block 205 comprises as shown in Figure 3: impact damper 301, Sheffer stroke gate 302 and shift register 303.Shift register 303 is the shift register of the corresponding many outputs of an input.For example in the present embodiment, shift register 303 is the shift register of a bit to eight bits.The input end of shift register 303 is connected with the first status signal SS1 that front stage circuits 206 is exported.Each bit output terminal then is connected in regular turn with each input end of Sheffer stroke gate 302.Sheffer stroke gate 302 is the Sheffer stroke gate of the corresponding output of many inputs.Its input bit number should equate with the shift register 303 of prime.For example in the present embodiment, because of its shift register 303 is the shift register of a bit to eight bits, so Sheffer stroke gate 302 is required to be the Sheffer stroke gate of eight bits to a bit.The Enable Pin of the output terminal of Sheffer stroke gate 302 and impact damper 301 couples.The Enable Pin of impact damper 301 can be low enable or height enables to drive, but in the present embodiment, owing to be coupled to the right and wrong door 302 of Enable Pin, so the Enable Pin of impact damper 301 enables driving for low.The input end of impact damper 301 receives and comes from the second status signal SS2 that front stage circuits 206 is exported.And the output terminal of impact damper 301, then the cathode terminal with the second display unit blue LED 203 is connected.
The second status signal SS2 that front stage circuits 206 is exported can be various signal.For example in the present embodiment, the second status signal SS2 that front stage circuits 206 is exported has the form of three kinds of differences.Please also refer to Fig. 2 and Fig. 1 C, when prime circuit 206 can't detect disk drive, front stage circuits 206 can the high signal of output logics be given the input end of impact damper 301.When prime circuit 206 can detect disk drive, front stage circuits 206 can the output logic low signals be given the input end of impact damper 301.When prime circuit 206 disk drive that detects is carrying out data access, the square-wave signal that front stage circuits 206 can the output characteristic frequency is given the input end of impact damper 301.
Because impact damper 301 also need be confirmed the output state of Sheffer stroke gate 302 simultaneously, could determine whether to allow the blue LED driven for emitting lights.Therefore understand the action principle of shift register 303 and Sheffer stroke gate 302 first.The first status signal SS1 that shift register 303 will be intercepted from the front stage circuits 206 of Fig. 2 reads the Sheffer stroke gate 302 that sends eight bits behind 8 bits in regular turn.Sheffer stroke gate 302 is through producing output after the NAND operation, the Enable Pin by impact damper 301 determines whether allowing the second status signal SS2 drive blue LED 203 again.
Fig. 4 A shows that the first status signal SS1 that is intercepted from front stage circuits 206 is 1, is 0 so Sheffer stroke gate 302 exports the Enable Pin of impact damper 301 to.On behalf of the first status signal SS1, this also do not make red light emitting diodes 202 luminous at present.Because the Enable Pin of impact damper 301 enables for low, so the second status signal SS2 can drive blue LED 203 by impact damper 301.This moment, then blue LED 203 is not luminous did not exist with the expression disk drive if the second status signal SS2 is a logic high signal.If the second status signal SS2 is a logic low signal, drive blue LED 203 and make it continue to send blue light, the state of representing the disk drive that detects is a normal condition.If the second status signal SS2 is the square-wave signal of characteristic frequency, drive blue LED 203 and make it intermittently send blue flash of light, carrying out data access operation with the expression disk drive.
Fig. 4 B shows that the first status signal SS1 that is intercepted from front stage circuits 206 is 0, so Sheffer stroke gate 302 is output as 1.Because it is status of fail that the first status signal SS1 remains the state of 0 expression disk drive, so Sheffer stroke gate 302 output logics 1 make impact damper 301 forbidden energy.So the second status signal SS2 can't drive blue LED 203.But it is shinny that the first status signal SS1 still can drive red light emitting diodes 202 conductings, is failure to show present disk drive state.
Fig. 4 C shows the first status signal SS1 from front stage circuits 206 output characteristic frequency square waves, and the output result of the shift register 303 interceptings first status signal SS1 is 01010101, so the output of Sheffer stroke gate 302 is still 1.Because the first status signal SS1 presents the characteristic frequency square wave and represents that promptly disk drive rebuilds (that is at present disk drive be the alarm condition that is in error in data) to interior data, therefore makes impact damper 301 forbidden energy by Sheffer stroke gate 302 output logics 1.So the second status signal SS2 can't drive blue LED 203.But it is shinny that the first status signal SS1 still can drive red light emitting diodes 202, shows that present disk drive state is during data are rebuild.So, can avoid disk drive when data are rebuild state, blue LED 203 and shinny situation of 202 while of red light emitting diodes.
Fig. 5 is the disk drive state display device circuit block diagram of another embodiment of the present invention.This disk drive state display device 500 comprises: resistance 501, first display unit 502, second display unit 503, logical block 506, with impact damper 504,505.One end of resistance 501 is connected to voltage source V DD, and the other end is coupled to the anode of first display unit 502 and second display unit 503.The negative electrode of first display unit 502 then is coupled to the output terminal of impact damper 504.The negative electrode of second display unit 503 then is coupled to the output terminal of impact damper 505.Impact damper 504 input ends receive the first status signal SS1.The input end of impact damper 505 is coupled to the output terminal of logical block 506.The main effect of impact damper 504,505 is for increasing by the driving force of the first status signal SS1 and the second status signal SS2.The signal condition of visual front stage circuits 507 and whether determine configuration impact damper 504,505 in disk drive state display device 500.
Wherein, the internal circuit of logical block 506 comprises as shown in Figure 6: switch element 601, Sheffer stroke gate 602 and shift register 603.Have this field know usually the knowledgeable can be according to its demand accomplished in various ways switch element 601.For example, present embodiment is to realize this switch element with transmission lock 610.The input end of transmission lock 610 receives the second status signal SS2, and Enable Pin receives the output signal of Sheffer stroke gate 602, and output terminal then is coupled to the input end of impact damper 505.Its principle of operation is identical with the impact damper 301 of Fig. 3.Each input end of Sheffer stroke gate 602 is coupled to each output terminal of shift register 603.The input end of shift register 603 receives the first status signal SS1 of front stage circuits 507.The input end bit number of Sheffer stroke gate 602 need equate with the output terminal bit number of shift register 603.The principle of operation of its each element is all identical with each element operation principle of first embodiment, no longer repeats at this.
In sum, the foregoing description connects logical block because of the negative electrode at second display unit, and judges that the first status signal SS1 that front stage circuits transmitted is logic high, logic low or optional frequency square wave.Use and select the second status signal SS2 whether can drive second display unit.So can effectively avoid two display units with driven possibility of time, make the disk drive state display device can more effectively react the disk drive current state.And then reach the effect of accurate demonstration disk drive current state.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (12)
1. disk drive state display device, in order to show the mode of operation of a disk drive according to the driving of a front stage circuits, this disk drive state display device comprises:
One first display unit is in order to export the driving of one first status signal and to show corresponding informance according to this front stage circuits;
One second display unit; And
One logical block is coupled to this second display unit, removes to drive this second display unit in order to determine whether to allow this front stage circuits export one second status signal according to this first status signal.
2. disk drive state display device as claimed in claim 1 is characterized in that, this first display unit comprises one first look light emitting diode, and this second display unit comprises one second look light emitting diode.
3. disk drive state display device as claimed in claim 2 is characterized in that, also comprises:
One resistance, its first end couples a system voltage, and its second end is coupled to the anode of this first look light emitting diode and this second look light emitting diode.
4. disk drive state display device as claimed in claim 1 is characterized in that, also comprises:
One first impact damper, it is coupled between this front stage circuits and this first display unit.
5. disk drive state display device as claimed in claim 1 is characterized in that, this logical block comprises:
One shift register has an input end and a plurality of output terminal, and wherein the input end of this shift register receives this first status signal;
One Sheffer stroke gate has a plurality of input ends and an output terminal, and wherein each input end is coupled to one of them output terminal of this shift register separately; And
One second impact damper, the one Enable Pin is coupled to the output terminal of this Sheffer stroke gate, the input end of this second impact damper receives this second status signal that this front stage circuits is exported, whether and the output terminal of this second impact damper is coupled to this second display unit, wherein determine to allow this second status signal remove to drive this second display unit through the control of this Enable Pin.
6. disk drive state display device as claimed in claim 1 is characterized in that, this logical block comprises:
One shift register has an input end and a plurality of output terminal, and wherein the input end of this shift register receives this first status signal;
One Sheffer stroke gate has a plurality of input ends and an output terminal, and wherein each input end is coupled to one of them output terminal of this shift register separately; And
One switch element, one control end of this switch element is coupled to the output terminal of this Sheffer stroke gate, the input end of this switch element receives this second status signal that this front stage circuits is exported, whether and the output terminal of this switch element is coupled to this second display unit, wherein determine to allow this second status signal remove to drive this second display unit through the control of this control end.
7. disk drive state display device as claimed in claim 6 is characterized in that, this switch element comprises:
One transmission lock, the one Enable Pin is as the control end of this switch element, the input end of this transmission lock receives this second status signal that this front stage circuits is exported, whether and the output terminal of this transmission lock is coupled to this second display unit, wherein determine to allow this second status signal remove to drive this second display unit through the control of this Enable Pin.
8. disk drive state display device as claimed in claim 6 is characterized in that, also comprises:
One second impact damper, it is coupled between this transmission lock and this second display unit.
9. disk drive state display device as claimed in claim 1 is characterized in that, this first display unit is in order to show whether this disk drive lost efficacy.
10. disk drive state display device as claimed in claim 1 is characterized in that, this first display unit is in order to show whether this disk drive carries out data and rebuild.
11. disk drive state display device as claimed in claim 1 is characterized in that, this second display unit is in order to show whether this disk drive is normal.
12. disk drive state display device as claimed in claim 1 is characterized in that, this second display unit is in order to show whether this disk drive carries out data access.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101278866A CN101345075B (en) | 2007-07-10 | 2007-07-10 | Display equipment for disk drive state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101278866A CN101345075B (en) | 2007-07-10 | 2007-07-10 | Display equipment for disk drive state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101345075A CN101345075A (en) | 2009-01-14 |
| CN101345075B true CN101345075B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101278866A Expired - Fee Related CN101345075B (en) | 2007-07-10 | 2007-07-10 | Display equipment for disk drive state |
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| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852432A (en) * | 1994-10-26 | 1998-12-22 | Daewoo Electronics Co., Ltd. | Function display controlling method for a composite apparatus of CDG player and VCR and apparatus thereof |
| CN1779847A (en) * | 2004-11-25 | 2006-05-31 | 建兴电子科技股份有限公司 | Auxiliary operation method for digital image player |
-
2007
- 2007-07-10 CN CN2007101278866A patent/CN101345075B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5852432A (en) * | 1994-10-26 | 1998-12-22 | Daewoo Electronics Co., Ltd. | Function display controlling method for a composite apparatus of CDG player and VCR and apparatus thereof |
| CN1779847A (en) * | 2004-11-25 | 2006-05-31 | 建兴电子科技股份有限公司 | Auxiliary operation method for digital image player |
Non-Patent Citations (1)
| Title |
|---|
| JP特表2003-507833A 2003.02.25 |
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| CN101345075A (en) | 2009-01-14 |
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Granted publication date: 20110504 Termination date: 20160710 |