CN1512498A - Tray control method of tray type data regenerator and said data regenerator - Google Patents
Tray control method of tray type data regenerator and said data regenerator Download PDFInfo
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- CN1512498A CN1512498A CNA021600481A CN02160048A CN1512498A CN 1512498 A CN1512498 A CN 1512498A CN A021600481 A CNA021600481 A CN A021600481A CN 02160048 A CN02160048 A CN 02160048A CN 1512498 A CN1512498 A CN 1512498A
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- tray
- regenerating unit
- motor
- data regenerating
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Abstract
The present invention relates to tray control method of tray type data regenerator. The data regenerator includes at least one motor to drive the tray. The tray control method includes the following steps: to set one detection circuit connected electrically to the motor to detect the back electromotive force the motor generates in rotating caused by outer force; for the detection circuit to output one tray moving signal; for a servo controller to receive the tray moving signal; and for the servo controller to shift the tray into the data regenerator.
Description
Technical field
The present invention relates to a kind of tray control method of tray formula data regenerating unit, the method that particularly a kind of back-emf voltage that utilizes the tray motor to be produced passes in and out with the control tray.
Background technology
The tray turnover control of known CD-ROM drive is the position of detecing the side tray by a mechanical switch.Conventional practice is to utilize tray to haul out fully when CD-ROM drive is outside, and the appropriate location position of tray can touch mechanical switch by butt, and makes mechanical switch be the state of pass (ON).Again when tray is subjected to external force and moves inward, tray leaves the position of butt mechanical switch, and make mechanical switch recover to be out the state of (OFF), at this moment control of the ON/OFF variation of the firmware program monitoring of tray turnover, and finish inside the moving of tray to mechanical switch.
Known CD-ROM drive adopts the mechanical switch side means of detecing that control passes in and out as tray, because mechanical switch has its age limit in the sky earlier, often known CD-ROM drive is scrapped and make whole known CD-ROM drive waste because the time limit of mechanical switch damages.Though can alleviate this problem by high-quality mechanical switch, get the higher manufacturing cost of known CD-ROM drive in return.
Summary of the invention
The inventor is in view of the shortcoming of known CD-ROM drive, thereby urgently think of is improved out the breakthrough practice that is different from the known practice fully, makes the CD-ROM drive that comes out according to the inventive method manufacturing no longer include known shortcoming.
The object of the invention provides a kind of tray formula data regenerating unit that is used for, the control method of its control tray turnover.
For reaching the object of the invention, the invention provides a kind of tray control method of tray formula data regenerating unit, wherein this data regenerating unit comprises one at least in order to drive the motor of this tray, this tray control method comprises the following steps: to be provided with the lateral circuit of detecing of electric this motor of property connection, and wherein this is detectd lateral circuit and rotates the back-emf voltage that is produced because of external force in order to the motor of detecing side and going out when this drive tray; When this back-emf voltage is detectd after side arrives, this is detectd lateral circuit and exports a tray and move signal.In addition, the inventive method comprises that further a servo controller receives the step that this tray moves signal.In addition, the inventive method further comprise when this servo controller finish receive this tray and move signal after, this servo controller makes this tray move to this data regenerating unit inside.
In addition, for reaching the object of the invention, the present invention provides a kind of tray formula data regenerating unit in addition, and comprising: one in order to drive the motor of a tray; One electric this motor of property connection detect lateral circuit, wherein this is detectd lateral circuit and rotates the back-emf voltage that is produced because of external force in order to the motor of detecing side and going out when this drive tray, and in order to detectd when this back-emf voltage side to after output one tray move signal.Apparatus of the present invention further comprise a servo controller, move signal in order to receive this tray, and in order to when finish receive this tray and move signal after, make this tray move to this data regenerating unit inside.
Be familiar with this skill personage and understand purpose of the present invention, feature and effect for making, now by following specific embodiment, and conjunction with figs., the present invention is illustrated in detail, illustrate as afterwards:
Description of drawings
Fig. 1 shows its relevant structural representation partly of tray formula data regenerating unit that the inventive method is suitable for.
Fig. 2 shows the process flow diagram of the inventive method.
Fig. 3 A shows the process flow diagram of master routine facility program codes.
Fig. 3 B shows the process flow diagram that interrupts facility program codes.
Fig. 4 shows that back-emf voltage and tray move the oscillogram of signal.
The specific embodiment of lateral circuit is detectd in Fig. 5 demonstration.
Among the figure
11 trays
13 tray motors
The 13a back-emf voltage
15 motor driven chips
17 servo controllers
19 detect lateral circuit
The 19a tray moves signal
The 19b transistor
Embodiment
Fig. 1 shows its relevant structural representation partly of tray formula data regenerating unit that the inventive method is suitable for.Tray 11 mechanicalnesses of Fig. 1 are connected in tray motor 13, when tray motor 13 rotation and drive tray 11 to outside or move to inside.Motor driven chip 15 is accepted the instruction of servo controller 17 and outputting drive voltage makes 13 rotations of tray motor.
Fig. 2 shows the process flow diagram of the inventive method.Step 21 be an electric property connection tray motor 13 is set detect lateral circuit 19, wherein detect lateral circuit 19 and go out when the motor 13 that drives tray 11 to rotate back-emf voltage (Δ V) 13a that is produced because of external force in order to detect side.Under the state that the tray 11 of tray formula data regenerating unit is being hauled out, be subjected to one for example the people when pushing the external force of (push), because tray 11 has the relation of mechanicalness interlock with tray motor 13, and make tray 11 drive 13 rotations of tray motor because of being subjected to moving of external force, tray motor 13 produces the physical phenomenon of back-emf voltage 13a at this moment, sees also the oscillogram of the shown back-emf voltage 13a of Fig. 4.The lateral circuit 19 of detecing that the inventive method is set promptly is to be used for detecing side back-emf voltage 13a, detects side to the existence of back-emf voltage 13a if detect lateral circuit 19, and meaning represents that promptly tray 11 is subjected to external force at present and moves.
For the embodiment of step 25 and step 27, the mode that the present invention can adopt servo controller 17 to carry out a facility program codes is reached.Fig. 3 A shows that the process flow diagram of master routine facility program codes and Fig. 3 B show the process flow diagram that interrupts facility program codes.Servo controller 17 receives when tray moves signal 19a orders servo controller 17 to interrupt (interrupt), the interruption facility program codes of servo controller 17 execution graph 3B, variable TrayPush flag has been established, moving of external force taken place to indicate tray 11.Can judge when servo controller 17 is carried out the master routine facility program codes that the TrayPush flag has established whether to have and established, established if having, then servo controller 17 is carried out the TrayIN child code tray 11 is moved to data regenerating unit inside, do not established if having, then servo controller 17 is carried out other child code.
The specific embodiment of lateral circuit is detectd in Fig. 5 demonstration, and the lateral circuit of detecing of figure five is a transistor amplifier circuit.The base stage of transistor 19b connects the signal of back-emf voltage 13a, and moves signal 19a at collector output tray.
The tray formula data regenerating unit of implementing according to the inventive method can be CD-ROM drive, and this CD-ROM drive can be DVD drive, CDROM CD-ROM drive, erasable formula DVD drive, erasable formula CDROM CD-ROM drive or the like.
In addition, the tray formula data regenerating unit of implementing according to the inventive method can for example be DVD player, VCD player, CD player, MP3 player or the like for including the player of CD-ROM drive.
Though the present invention is illustrated with the foregoing description; right its is not in order to limiting the present invention, anyly is familiar with this technology personage, in not breaking away from spiritual scope of the present invention; change and retouching when doing, thus protection scope of the present invention later on the scope of claim be as the criterion.
Claims (9)
1. the tray control method of a tray formula data regenerating unit, wherein this data regenerating unit comprises one at least in order to drive the motor of this tray, this tray control method comprises the following steps:
The lateral circuit of detecing of electric this motor of property connection is set, and wherein this is detectd lateral circuit and rotates the back-emf voltage that is produced because of external force in order to the motor of detecing side and going out when this drive tray; And detectd after side arrives when this back-emf voltage, this is detectd lateral circuit and exports a tray and move signal.
2. method according to claim 1, it comprises that further a servo controller receives the step that this tray moves signal.
3. method according to claim 2, its further comprise when this servo controller finish receive this tray and move signal after, this servo controller makes this tray move to this data regenerating unit inside.
4. method according to claim 1, this detects lateral circuit is a transistor amplifier circuit.
5. method according to claim 1, this tray formula data regenerating unit is a CD-ROM drive.
6. tray formula data regenerating unit comprises:
One in order to drive the motor of a tray;
One electric this motor of property connection detect lateral circuit, wherein this is detectd lateral circuit and rotates the back-emf voltage that is produced because of external force in order to the motor of detecing side and going out when this drive tray, and in order to detectd when this back-emf voltage side to after output one tray move signal.
7. tray formula data regenerating unit according to claim 6, it further comprises a servo controller, moves signal in order to receive this tray, and in order to when finish receive this tray and move signal after, make this tray move to this data regenerating unit inside.
8. tray formula data regenerating unit according to claim 6, this detects lateral circuit is a transistor amplifier circuit.
9. tray formula data regenerating unit according to claim 6, this tray formula data regenerating unit is a CD-ROM drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021600481A CN1512498A (en) | 2002-12-30 | 2002-12-30 | Tray control method of tray type data regenerator and said data regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021600481A CN1512498A (en) | 2002-12-30 | 2002-12-30 | Tray control method of tray type data regenerator and said data regenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1512498A true CN1512498A (en) | 2004-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021600481A Pending CN1512498A (en) | 2002-12-30 | 2002-12-30 | Tray control method of tray type data regenerator and said data regenerator |
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| Country | Link |
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| CN (1) | CN1512498A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3554875B1 (en) | 2016-12-13 | 2021-08-11 | HELLA GmbH & Co. KGaA | System with a flap, an actuator and a controler and method for automatic actuation of a flap |
-
2002
- 2002-12-30 CN CNA021600481A patent/CN1512498A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3554875B1 (en) | 2016-12-13 | 2021-08-11 | HELLA GmbH & Co. KGaA | System with a flap, an actuator and a controler and method for automatic actuation of a flap |
| US11215005B2 (en) | 2016-12-13 | 2022-01-04 | HELLA GmbH & Co. KGaA | Vehicle flap cover system and a method for automatically actuating the flap cover |
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