CN1136566C - Rotation speed controlling method and device for CD machine - Google Patents
Rotation speed controlling method and device for CD machine Download PDFInfo
- Publication number
- CN1136566C CN1136566C CNB991085000A CN99108500A CN1136566C CN 1136566 C CN1136566 C CN 1136566C CN B991085000 A CNB991085000 A CN B991085000A CN 99108500 A CN99108500 A CN 99108500A CN 1136566 C CN1136566 C CN 1136566C
- Authority
- CN
- China
- Prior art keywords
- value
- input signal
- change
- rotating speed
- speed
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Rotational Drive Of Disk (AREA)
Abstract
The present invention relates to a method for controlling the rotary speed of a main shaft motor of an optical disk machine. A motor is used for driving an optical disk in the optical disk machine to rotate, and the user can utilize an optical disk input panel to set the rotary speed of the optical disk machine in the most suitable state. The method utilizes the input signals input by the user and makes judgment to the input signals; when the input signals make the criterion of a certain alteration rotary speed true, the alteration value of the rotating speed of the main shaft motor is set; the alteration value can be a negative value or a positive value according to the criterion of the alteration rotary speed, which represents that the speed of the main shaft motor is increased or decreased. The criterion of the alteration rotary speed can be used as the time constant of the input signals, and then, the judgment to the duration time or the judgment to a specific triggering can be carried out to achieve the function of changing the rotary speed of the main shaft motor.
Description
Technical field
The present invention system is about a kind of CD player, particularly about a kind of by the CD player button, or broadcast interface, or computer peripheral input media are controlled the method and the device thereof of (real-time control) CD player rotating speed immediately.
Background technology
CD player, for example CD-ROM, DVD-ROM, CD-RW, DVD-RAM reappear or pen recorder etc. optical data, widely are configured on the multimedia computer system, become one of this computer system primary element.
Prior art about the CD player control system is listed below now: United States Patent (USP) the 4th, 485, No. 337; United States Patent (USP) the 4th, 783, No. 774; United States Patent (USP) the 5th, 289, No. 097; United States Patent (USP) the 5th, 246, No. 479; United States Patent (USP) the 5th, 345, No. 347; And the 077th, No. 858 (notification number is 273, No. 026) of the Taiwan patent number of checking and approving invention.
Now CD player read or storage data in the speed of CD system with doubly speed expression (1 times of speed=150k hyte/second), and the doubly speed that is directly connected to CD and reads/store be the Spindle Motor that CD player internal drive CD rotates, that is the rotating speed of Spindle Motor is faster, and the doubly speed that CD reads/stores is just bigger.The speed control of general CD player, when beginning to read to coil, it is times fast for its predetermined maximum to set doubly speed that CD reads/stores.Under some particular cases, for example lose burnt (out-of-focus), eccentric (eccentric), vibration etc. and cause the not good situation of dish rate of reading, CD player can fall times speed automatically to go to attempt reading, to obtain more correct data read.In addition, for some CDs that has format and can be determined form, CD player then can go to read according to the standard setting one specific multiple of form/store CD, read the dish rate and reach the best.Above-mentioned format is for example: the CD-Audio of Red Book (Red Book) institute standard, CD-ROM Mode1, the CD-ROM Mode2 of yellow book (Yellow Book) institute standard, CD-ROM Mode2/XA Forml, the CD-ROMMode2/XA Form2 of Green Book (Green Book) institute standard, " can write down the CD standard " (Recordable Compact Disc Standard) of Orange Book (Orange Book) institute standard, and even in the DVD standard to Audio, Video, Read-Only Disc fixed form ... or the like.Usually these specific formats systems one of are recorded in the CD player in the firmware.If the form of CD fails to meet the specific format reference table that is recorded in the CD player firmware, for example by application form that specific standard extended out, or some special forms such as MP3, computer game (PC-Game), Deng the CD of form, CD player is considered as it general data dish form and reads optical disc data with maximum times speed.Above-mentioned form beyond the specific format reference table, unless CD player has the corresponding decoding function wafer of increasing or collocation that decoding software is arranged, the rotating speed that comes the conversion CD player is judged in active via the decoding software/hardware, but relatively also can increase on cost and the degree of difficulty.
Now CD player read/speed of storage data (doubly speed) grows with each passing day, related some unavoidable noises of following, for example wind is cut sound (wind-cutting), vibration and motor running sound etc.But be regarded as the CD of general data dish form for some special formats, the CD of form such as MP3 and computer game for example, it can't judged under the specific format and is coming reading of data with maximum times speed, the various noises that this moment is above-mentioned, especially add the laying particular stress on of CD (because of dish different), can have a greatly reduced quality to the acousto-optic visual and sound effects of its reproduction most probably.
Though each tool invention of case or creation purpose before above-mentioned these CD player control system, the doubly facilitating functions of speed that makes the user adjust CD player voluntarily all is not provided, with eliminate the user do not desire the noise heard.Purpose of the present invention promptly is to provide a kind of method of controlling motor rotary speed, this kind method can be according to user's demand, utilize the input panel of this CD player, perhaps broadcast interface, or the input of this computer system such as keyboard, slide-mouse periphery input one control signal, with the rotating speed of the Spindle Motor of controlling this CD player to its rotating speed of thinking fit.
Summary of the invention
Purpose of the present invention is a kind of method of controlling motor rotary speed that provides, this method can be according to user's demand, utilize the input panel of this CD player, or broadcast interface, or the input of this computer system such as keyboard, slide-mouse periphery input one control signal, with the rotating speed of the Spindle Motor of controlling this CD player.
For realizing above-mentioned purpose of the present invention, the method of rotating speed of one Spindle Motor of a kind of control one CD player is provided, this Spindle Motor system drives a CD that places in this CD player and rotates, it is characterized in that this method comprises the following step: (1) determines one to be allowed to rotating speed according to a predetermined way; (2) adjust this Spindle Motor and operate under a control rotating speed Wc, this control rotating speed Wc system equals this and is allowed to rotating speed; (3) accept an input signal; (4) judge whether this input signal makes a change rotating speed criterion set up; (5) if step (4) for certainly, then (i) should control rotating speed Wc addition and change variate Wa and form and change variable speed Wd, (ii) adjusted this Spindle Motor to operate under this change rotating speed Wd; (6) if step (4) is to negate, then keep the value of this control rotating speed Wc in the step (2), wherein this predetermined criterion system with the time constant of this input signal as benchmark, when the time constant of this input signal during greater than one first predetermined value and less than one second predetermined value, this change value Wa is one first value, when the time constant of this input signal during greater than this second predetermined value, this change value Wa is one second value, and this first value and this second value are inverse value each other.
The present invention also provides the method for the rotating speed of one of a kind of control one CD player Spindle Motor, this Spindle Motor system drives and one of places in this CD player CD to rotate, it is characterized in that this method comprises the following step: (1) determines one to be allowed to rotating speed according to a predetermined way; (2) adjust this Spindle Motor and operate under a control rotating speed Wc, this control rotating speed Wc system equals this and is allowed to rotating speed; (3) accept an input signal; (4) with reference to a specific format table of comparisons, check whether the form of this CD meets form listed in this table of comparisons; (5) if step (4) for certainly, is then kept the value of this control rotating speed Wc in the step (2); (6) if, then judging this input signal for negative, step (4) whether make a change rotating speed criterion set up; (7) if step (6) for certainly, then (i) should control rotating speed Wc addition and change variate Wa and form and change variable speed Wd; (ii) adjusting this Spindle Motor operates under this change rotating speed Wd; (8) if step (6) is to negate, then keep the value of this control rotating speed Wc in the step (2), wherein, this predetermined criterion system with the time constant of this input signal as benchmark, when the time constant of this input signal during greater than one first predetermined value and less than one second predetermined value, this change value Wa is one first value, when the time constant of this input signal during greater than this second predetermined value, this change value Wa is one second value, and this first value and this second value are inverse value each other.
Another object of the present invention system provides the device of one of a kind of control one CD player principal axis motor rotation speed, and this Spindle Motor system drives and one of places in this CD player CD to rotate.This device cording body is implemented the method for the invention described above, and this device comprises change speed decision unit, a change speed performance element and a speed control unit.These unit subdivisions are not carried out with the subroutine in an electronic circuit or the control program.This change speed decision unary system is accepted an input signal from periphery, whether changes speed according to a change rotating speed criterion decision.This change speed performance element is according to the decision that changes speed and himself carry out rule in order to export a control tach signal.This speed control unit, it is according to this control tach signal, in order to adjust the rotating speed of this Spindle Motor.
Can and be further understood with reference to the accompanying drawings by following detailed Description Of The Invention about advantage of the present invention and feature of the present invention.
Description of drawings
Fig. 1 is mechanism and the electronic component synoptic diagram that announcement one can be used the optical disk system of the inventive method;
Fig. 2 discloses the process flow diagram of using a method of the present invention;
Fig. 3 discloses the system unit synoptic diagram of using one of the present invention device.
Embodiment
See also Fig. 1, this figure is mechanism and the electronic component figure that discloses a typical disk driving system.This disk driving system comprises one read/write head/CD composite set (Pickup head/disc assembly, HDA), wherein have one and activate device (actuator) 11, this activates device and comprises that a radial coil winding (coil), focuses on (focus) coil winding and a rotation motor.This activates device 11 read/write head 12 is positioned to CD 13 lip-deep different radial positions.Read/write head/CD assembly also comprises and reads pre-amplification circuit (preamplifier) 18, for amplifying from data and servo (servo) data that optical disc surface read.Also comprise a read buffers (read buffer) in the circuit 18, for the data of a certain track of read (track) are sent in regular turn.(Digital Signal Processor DSP) 19 receives the simulation reading of data of being sent here by circuit 18 in read/write head/CD assembly to digital signal processor.As know technology, and digital signal processor 19 comprises a fetch channel analog filter (filter), and it provides simulating signal to a pulse detector (not being shown among the figure).The output of pulse detector is original data read data, is sent to a data extractor (not being shown among the figure).Each element 15,19 in the disc drives circuit via a bus 102, is made interface with a microprocessor 10 and is linked up.As everyone knows, comprise the address on the bus 102; Control and data-signal.The disc drives control circuit further comprises servocontrol part (servo controlsection) 15, for detecting and handling from CD 13 and read next servo data, servo data is to (Burst), synchronizing pulse and orbital number etc. about servosignal.Servocontrol part 15 via bus 102, links with this microprocessor 10, and servocontrol part 15 operates and relevant servo the flowing of sequential and correction data of reading of control.Servocontrol part 15 also comprises servo controller (servo controller), analog/digital converter and digital/analog converter.Simulation output 151 by 15 outputs of servocontrol part is sent to this activated drive circuit 90.This activated drive circuit 90 comprises a power amplification control circuit, and it provides one to activate drive signal to a power amplifier (power amplifier), and power amplifier provides control circuit to actuating device 11 more in regular turn.Shown system also comprises a Spindle Motor control Driver Circuit 14, one controls and reads/the interior Spindle Motor (spindle motor) 16 of CD assembly, so that drive this CD 13 rotations.System also comprises a host computer interface 17, and by gathering line 171 and 102, it operates so that the passage of interelement control of host computer and relevant peripheral and data to be provided.One memory buffer 93 is provided with coordinating the difference of data transmission rate between data transmission rate between host computer interface 17 and the host computer and host computer interface 17 and the CD.In other words, the memory buffer 93 temporary transient data of reading that store from CD 13.Digital signal processor 19 is also exported a feedback signal 191 to digital motor speed control circuit 91, this motor speed control circuit 91 with feedback signal 191 with make comparisons by these microprocessor 10 output signals.Result relatively is, with the data transmission rate viewpoint, whether the present rotating speed of motor is too soon or too slow.This result is used to control this motor driver 14, and 14 of this motor drivers provide electric energy to Spindle Motor 16.Element 92 is digital/analog converter (DAC), and element 94 is an amplifier.
The flow process system of Fig. 2 discloses the method for the present invention of using, and this method system responds the input signal that the user imported, and controls the rotating speed of one of CD player Spindle Motor immediately.This Spindle Motor system drives one and places the CD in this CD player to rotate.Below will do one to every step of this method describes in detail.Step 20 is beginning.The step 21 that continues is according to a predetermined way, for example judge this CD form, whether lose Jiao etc., decide one to be allowed to rotating speed.The step 22 that continues is that this Spindle Motor of control operates under a control rotating speed Wc, and this control rotating speed Wc equals this to be allowed to rotating speed.The step 23 that continues is to carry out the general utility functions of this CD player.When carrying out the general utility functions of CD player, enter step 24 at any time, this step 24 is to wait for a peripheral input signal.If, judging this input signal for affirming that then execution in step 25, step 24 whether make a change rotating speed criterion set up.If step 24 is for negating the execution in step 23 of then going back.If step 25 is for affirming, then execution in step 26, should control rotating speed Wc addition one rotating speed change value Wa and form and change variable speed Wd, and execution in step 27 then, control this Spindle Motor and under this change rotating speed Wd, turn round, and function as one of execution in step 23 CD player of then going back.If step 25 is for negating, then execution in step 28, and this step system carries out this periphery input signal and one of defines the function and then the general utility functions of execution in step 23 CD player of going back.
In a preferred embodiment, this input signal can be by one of this CD player input panel input, if the input periphery input of one of computer system of settling by this CD player, for example broadcast interface of a form menu form, an or slide-mouse key, an or keyboard hot key (hot key).
In a preferred embodiment, method provided by the present invention is executed in the control program with judging rule system, for example be executed in the control program of the microprocessor 10 shown in Fig. 1, and this microprocessor 10 has the function of carrying out method of the present invention, and with the interrupt routine inspection or in main loop program fixedly inspection whether the input of this periphery input signal is arranged.In another specific embodiment, judgement rule provided by the present invention and manner of execution system form with hardware circuit, and can reach the function of the above-mentioned software program of confession of method of the present invention.
In a preferred embodiment, this change rotating speed criterion system is with the time constant of this periphery input signal, that is the length of duration is as the benchmark of judging.For example, with the time constant of this periphery input signal as judgment standard in, when the time constant of this periphery input signal less than one first predetermined value, then should be considered as a specific function of this CD player is triggered by the periphery input signal, sow head as playing, play fast, jumping, suspend, stop, advancing dish, move back dish etc.; When the time constant of this periphery input signal during greater than this first predetermined value and less than one second predetermined value, this rotating speed change value Wa is a negative value, causes this Spindle Motor by reduction of speed; When the time constant of this periphery input signal during greater than this second predetermined value, this rotating speed change value Wa be one on the occasion of, cause this Spindle Motor by speedup.In another preferred embodiment, this change rotating speed criterion is to the benchmark of specific triggering as judgement with this periphery input signal.For example, push play button one second on the broadcast panel of CD player, push ESC Escape one second on the broadcast space of a whole page of CD player promptly to this Spindle Motor speedup promptly to this Spindle Motor reduction of speed.
In a preferred embodiment, the absolute value of this rotating speed change value Wa is a predetermined value, for example 5 times of speed.In another preferred embodiment, the absolute value of this rotating speed change value Wa system is with reference to a control rotating speed table of comparisons and determine, for example, when control rotating speed Wc is 40 times of speed, 30 times of speed, 20 times when fast, this rotating speed change value Wa is 5 times of speed, 4 times of speed and 3 times of speed in regular turn.
In a preferred embodiment, further carry out a format checking step between this step 25 and the step 26, this format checking step system is with reference to a specific format table of comparisons, whether the form of checking this CD meets form listed in this table of comparisons, if negate, then execution in step 26, if affirm then execution in step 28.This kind way can allow the CD of some specific formats carry out under set times speed, to keep the effect of its audio-visual broadcast.
The system unit synoptic diagram system of Fig. 3 discloses and uses a device of the present invention, and this device system responds the input signal 30 that the user may import at any time, and controls the rotating speed of one of CD player Spindle Motor 34 immediately.This Spindle Motor 34 is to drive one to place the CD in this CD player to rotate.This input signal 30 is by one of this CD player input panel input, or the input periphery input of one of the computer system of settling by this CD player, the broadcast interface of a form menu form for example, a slide-mouse key, or a keyboard hot key (hot key).This device comprises change speed decision unit 31, a change speed performance element 32 and a speed control unit 33.This change speed decision unit 31 is to accept this input signal 30, and portion does a judgement to this input signal 30 within it, when this input signal 30 meets a change speed criterion, promptly exports a variable rate signal Va to this change speed performance element 32.This change speed performance element 32 is according to this variable rate signal, and will export behind its this variable rate signal of control rate signal Vc addition Va that one of prestores.This speed control unit 33 is according to this control rate signal Vc, in order to adjust the rotating speed of this Spindle Motor 34.Comprising in this alleged unit is to carry out with electronic circuit, or carries out with the subroutine in the program of this principal axis motor rotation speed of control.
In a preferred embodiment, this change speed criterion system is with the time constant of this input signal 30, that is the length of duration is as the benchmark of judging.For example, with the time constant of this input signal 30 as judgment standard in, the time constant of this input signal 30 is during greater than this first predetermined value and less than one second predetermined value, this change value Va is a negative value, causes this Spindle Motor by reduction of speed; When the time constant of this periphery input signal during greater than this second predetermined value, this change value Va be one on the occasion of, cause this Spindle Motor by speedup.In another preferred embodiment, this change rotating speed criterion system is with the benchmark of 30 pairs of specific triggerings of this input signal as judgement.For example, push play button one second on the broadcast panel of CD player, push ESC Escape one second on the broadcast space of a whole page of CD player promptly to this Spindle Motor speedup promptly to this Spindle Motor reduction of speed.
In a preferred embodiment, the absolute value of this change value Va is a predetermined value, for example 5 times of speed.In another preferred embodiment, the absolute value of this change value Va system is with reference to a control rotating speed table of comparisons and determine, for example, when principal axis motor rotation speed is 40 times of speed, 30 times of speed, 20 times when fast, this change value Va is 5 times of speed, 4 times of speed and 3 times of speed in regular turn.
In a preferred embodiment, this change speed decision unit 31 further can detect the form of CD with reference to a specific format table of comparisons, the form of this CD is if meet form listed in this table of comparisons, and this variable rate signal is not exported in this 31 of unit of change speed decision; The form of this CD is not if meet form listed in this table of comparisons, and this variable rate signal is exported in this 31 of change speed decision unit.This kind way can allow the CD of some specific formats carry out under set times speed, to keep the effect of its audio-visual broadcast.
Above-mentioned method and device all can be by the buttons on the CD player input panel, or keyboard, or broadcast interface, or application program waits and set the times fast of CD player immediately, think optimal times of speed to the user.And can not influence under design of original function and the specification situation, allow rotating speed that the user adjusts CD player voluntarily operate under than noiselessness and doubly fast enough situations, user one so promptly is being provided function quite easily one.
By the above detailed description of preferred embodiments, be that hope can be known description feature of the present invention and spirit more, and be not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain various changes and being arranged in the claim scope of the present invention of property such as have.For example, in the present invention in order to the circuit of concrete this predetermined criterion of enforcement, the people who knows this art all can other equality circuit replace it.Therefore, the category of claim of the present invention should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (24)
1. the method for rotating speed of a Spindle Motor of control one CD player, this Spindle Motor system drives a CD that places in this CD player and rotates, and it is characterized in that this method comprises the following step:
(1) determine one to be allowed to rotating speed according to a predetermined way;
(2) adjust this Spindle Motor and operate under a control rotating speed Wc, this control rotating speed Wc system equals this and is allowed to rotating speed;
(3) accept an input signal;
(4) judge whether this input signal makes a change rotating speed criterion set up;
(5) if step (4) is certainly, then
(i) should control rotating speed Wc addition and change variate Wa and form and change variable speed Wd,
(ii) adjusting this Spindle Motor operates under this change rotating speed Wd;
(6) if step (4) for negating, is then kept the value of this control rotating speed Wc in the step (2),
Wherein this predetermined criterion system with the time constant of this input signal as benchmark, when the time constant of this input signal during greater than one first predetermined value and less than one second predetermined value, this change value Wa is one first value, when the time constant of this input signal during greater than this second predetermined value, this change value Wa is one second value, and this first value and this second value are inverse value each other.
2. the method for claim 1 is characterized in that, this change rotating speed criterion system is judged by a testing circuit or a control program.
3. method as claimed in claim 2, it is characterized in that, this predetermined criterion system with the certain trigger of this input signal as benchmark, when this input signal system triggers as one first, this change value Wa is a negative value, when this input signal system triggers as one second, this change value Wa be one on the occasion of.
4. method as claimed in claim 3 is characterized in that, the absolute value of this change value Wa is a predetermined value or is to decide with reference to a control rotating speed Wc table of comparisons.
5. method as claimed in claim 4 is characterized in that, this CD player system is configured on the computer system, and this computer system comprises an input media, and wherein this input signal system imports by this input media.
6. method as claimed in claim 4 is characterized in that this CD player has an input panel, and wherein this input signal system is imported by this input panel.
7. method as claimed in claim 4 is characterized in that, this CD player system is configured on the computer system, and this computer system comprises the broadcast interface of a form menu form or program form, and wherein this input signal system imports by this broadcast interface.
8. the method for the rotating speed of control one of one CD player Spindle Motor, this Spindle Motor system drives and one of places in this CD player CD to rotate, and it is characterized in that this method comprises the following step:
(1) determine one to be allowed to rotating speed according to a predetermined way;
(2) adjust this Spindle Motor and operate under a control rotating speed Wc, this control rotating speed Wc system equals this and is allowed to rotating speed;
(3) accept an input signal;
(4) with reference to a specific format table of comparisons, check whether the form of this CD meets form listed in this table of comparisons;
(5) if step (4) for certainly, is then kept the value of this control rotating speed Wc in the step (2);
(6) if, then judging this input signal for negative, step (4) whether make a change rotating speed criterion set up;
(7) if step (6) is certainly, then
(i) should control rotating speed Wc addition changes variate Wa and forms and change variable speed Wd;
(ii) adjusting this Spindle Motor operates under this change rotating speed Wd;
(8) if step (6) for negating, is then kept the value of this control rotating speed Wc in the step (2),
Wherein, this predetermined criterion system with the time constant of this input signal as benchmark, when the time constant of this input signal during greater than one first predetermined value and less than one second predetermined value, this change value Wa is one first value, when the time constant of this input signal during greater than this second predetermined value, this change value Wa is one second value, and this first value and this second value are inverse value each other.
9. method as claimed in claim 8 is characterized in that, this change rotating speed criterion system is judged by a testing circuit or a control program.
10. method as claimed in claim 9, it is characterized in that, this predetermined criterion system with the certain trigger of this input signal as benchmark, when this input signal system triggers as one first, this change value Wa is a negative value, when this input signal system triggers as one second, this change value Wa be one on the occasion of.
11., it is characterized in that the absolute value of this change value Wa is a predetermined value or is to decide with reference to a control rotating speed Wc table of comparisons as claim 9 or 10 described methods.
12. method as claimed in claim 11 is characterized in that, this CD player system is configured on the computer system, and this computer system comprises an input media, and wherein this input signal system imports by this input media.
13. method as claimed in claim 11 is characterized in that, this CD player has an input panel, and wherein this input signal system is imported by this input panel.
14. method as claimed in claim 11 is characterized in that, this CD player system is configured on the computer system, and this computer system comprises the broadcast interface of a form menu form or program form, and wherein this input signal system imports by this broadcast interface.
15. the device of the rotating speed of control one of one a CD player Spindle Motor, this Spindle Motor system drives and one of places in this CD player CD, it is characterized in that this device comprises:
One change speed decision unit, it accepts an input signal, selective property ground output one variable rate signal Va;
One change speed performance element, it is to export after with its this variable rate signal of control rate signal Vc addition Va that prestores according to this variable rate signal;
One speed control unit, it is according to this control rate signal Vc, in order to adjust the rotating speed of this Spindle Motor.
16. device as claimed in claim 15 is characterized in that, this change speed decision unit, this change speed performance element and this speed control unit system carry out with a circuit respectively.
17. device as claimed in claim 16, it is characterized in that, this change speed decision unary system determines this speed change degree signal Va according to the time constant of this input signal, when the time constant of this input signal during greater than one first predetermined value and less than one second predetermined value, this variable rate signal Va is one first signal, when the time constant of this input signal during greater than this second predetermined value, this variable rate signal Va is a secondary signal, and this first signal and this secondary signal inverse value each other.
18. device as claimed in claim 16, it is characterized in that, this change speed decision unary system with the certain trigger of this input signal as benchmark, when this input signal system triggers as one first, this variable rate signal Va is a negative value, when this input signal system triggers as one second, this variable rate signal Va be one on the occasion of.
19. device as claimed in claim 17 is characterized in that, the absolute value of this change signal Va is a predetermined value or is to decide with reference to a control rotating speed Wc table of comparisons.
20. device as claimed in claim 18 is characterized in that, the absolute value of this change signal Va is a predetermined value or is to decide with reference to a control speed per hour Wc table of comparisons.
21. as claim 19 or 20 described devices, it is characterized in that, this change speed decision unit is further according to the form of this CD, and optionally export this variable rate signal Va, when the format character of this CD is unified form listed in the specific format table of comparisons, this variable rate signal is not then exported in this change speed decision unit, and when the form of this CD did not meet form listed in this table of comparisons, this variable rate signal was then exported in this change speed decision unit.
22. device as claimed in claim 21 is characterized in that, this CD player system is configured on the computer system, and this computer system comprises an input media, and wherein this input signal system imports by this input media.
23. device as claimed in claim 21 is characterized in that, this CD player has an input panel, and wherein this input signal system is imported by this input panel.
24. device as claimed in claim 21 is characterized in that, this CD player system is configured on the computer system, and this computer system comprises the broadcast interface of a form menu form or program form, and wherein this input signal system imports by this broadcast interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991085000A CN1136566C (en) | 1999-06-18 | 1999-06-18 | Rotation speed controlling method and device for CD machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB991085000A CN1136566C (en) | 1999-06-18 | 1999-06-18 | Rotation speed controlling method and device for CD machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1278641A CN1278641A (en) | 2001-01-03 |
| CN1136566C true CN1136566C (en) | 2004-01-28 |
Family
ID=5273331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991085000A Expired - Fee Related CN1136566C (en) | 1999-06-18 | 1999-06-18 | Rotation speed controlling method and device for CD machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1136566C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100426400C (en) * | 2004-05-13 | 2008-10-15 | 华硕电脑股份有限公司 | Rotate speed adjustable optical disk drive, and method for adjusting rotate speed |
-
1999
- 1999-06-18 CN CNB991085000A patent/CN1136566C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1278641A (en) | 2001-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1113345C (en) | Method of reproducing audio signals and audio player | |
| US6603719B1 (en) | Speed control of optical information reproducing apparatus based on storage quantity of a buffer memory during access operation | |
| JPH06180939A (en) | Multiple-type cd player | |
| JP2851756B2 (en) | Double deck disk recording / reproducing apparatus and recording method | |
| JP2508972B2 (en) | Sound signal processing device | |
| CN1136566C (en) | Rotation speed controlling method and device for CD machine | |
| JP3380626B2 (en) | Information reproducing method and apparatus | |
| TW200307264A (en) | Regeneration device for optical disk | |
| TW440817B (en) | Method for controlling the rotating speed of compact disk player and device thereof | |
| JP2005064651A (en) | Sound muting apparatus, sound muting method, and optical disk apparatus provided with sound muting apparatus | |
| CN1149565C (en) | Method for controlling speed of optical information regenerator | |
| JPH11306641A (en) | Optical disk reproducing device | |
| CN1059286C (en) | Speed controlling method for optical information reproducing device | |
| JPH11328828A (en) | Revolving speed controlling device for disk signal reproducing device | |
| CN1149743A (en) | Adaption control method for optical data regenerator | |
| JP2589873B2 (en) | Optical disk controller | |
| JP3830873B2 (en) | Optical disk playback device | |
| KR0144094B1 (en) | Method of performing compact disc player provided with function of reverse reproduction | |
| JP4257856B2 (en) | Disc player | |
| KR100518535B1 (en) | Variable disc control method for alleviating noise/vibration and disc driving apparatus thereof | |
| CN1149742A (en) | Power saving method for optical data regenerator | |
| JPH0917156A (en) | Disc player | |
| JP2599826Y2 (en) | Disk unit | |
| KR100302838B1 (en) | Method for reset flash memory | |
| CN1273990C (en) | Method for providing main computer with sub-code data of CD drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HESHUO JOINT SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUASHUO COMPUTER CO LTD Effective date: 20100416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 000000 TAIPEI CITY, TAIWAN PROVINCE TO: TAIPEI CITY, TAIWAN PROVINCE, CHINA |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100416 Address after: Taipei City, Taiwan, China Patentee after: Pegatron Corporation Address before: 000000 Taipei City, Taiwan Province Patentee before: Huashuo Computer Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040128 Termination date: 20130618 |