TWI263976B - A method and apparatus of disk rejection controlling which sets in a disk player - Google Patents

Abstract

A method and apparatus of disk rejection controlling which sets in a disk player. The apparatus of disk rejection controlling has a detecting means used to detect the tray position and produce a signal, a sensing unit used to receive the detecting signal and form a detecting signal and then transmit the detecting signal to an interrupt unit to directly stop a spindle motor rotating controlling signal, and a motor controlling unit, which is a spindle motor controlling circuit, used to receive the controlling signal to stop the spindle motor rotating. When a system shuts down informally, touching an emergency hole, a disk can reject safely from the disk player. Or when the system is under normal condition, by the present invention, the disk can reject safely from the disk player, and the reliability of disk rejection can be promoted.

Description

1263976 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) Technical Field The present invention relates to a method and a device for controlling the ejection of a spindle, and more particularly to a method for controlling the rotation of a spindle motor by controlling the operation of a spindle motor when the optical disk player performs the ejection And equipment. [Prior Art] Since the optical disk drive is rotated at a high speed, in order to ensure the user's operation safety, it is necessary to open the optical disk drive for rewinding in a safe state. As shown in Fig. 1, the conventional optical disc drive 1 usually has two modes of unloading during operation, and one is to press the optical disc drive back key 2 or the system to release the retracting command in the normal running state of the system. The other one is to perform the unloading action by touching the emergency ejecting mechanism during abnormal operation. In the normal state, when the disc ejection button 2 of the optical disc player 1 or the system is given the ejection instruction, the electromagnet will be driven. The actuator moves the tray out of the buckle mechanism out of the optical disc drive 1, and the linkage-sensing switch is turned off, and the drive system controls the spindle motor to stop rotating, and at the same time, the optical disc driven by the spindle motor cannot continue to rotate, and the optical disc drive is withdrawn from the tray. Therefore, when the system is in a normal state, there is no safety concern in the unwinding of the disc. Another type of unloading method is that during the abnormal operation, the user pulls out the emergency retracting hole 3, and touches the emergency ejecting mechanism. The tray is mechanically decoupled from the locking mechanism, so that the tray is linked with an inductive switch, and the driving system is closed. Control the spindle motor to stop rotating. However, in the case of such abnormal operation, when the system is down, the system cannot perform the sensor switch off and should stop the spindle motor rotation control, so that the spindle motor cannot be stopped, even if the tray is already in the unloading, the disc The film is still running on the spindle motor

Page 7 1263976 V. Inventions (2) Under high speed operation, there are security concerns. Therefore, how to make the CD player ensure normal and safe ejection in the normal system and the system crash will be the design required by the CD player industry. SUMMARY OF THE INVENTION The object of the present invention is to activate the cutting unit, the sheet safely exits the light | the other of the present invention exits the disc player normally or abnormally. The invention can replace the control of the stripping and improve the pre-setting, and is disposed on a disc to detect the tray position. Forming a detecting unit directly generates a spindle motor control motion. The present invention can be carried out under normal unloading, and provides a rewinding control method and apparatus for turning off the spindle motor rotation under the system to allow the optical disc drive. A purpose is to provide a method and device for controlling the ejection control, which can operate under the operation, can strengthen the security of the optical disc, and stop the retraction of the optical disc, set the sub-number, cut off the circuit system, and let the safety of the terminal be safe. The production has a spindle and the disc drive provides a retractability. Objective, the reliability of the hair shaft motor is detected by a signal. The detection motor is transferred to the control, and the control device and the device are controlled by the chip security device to control the emergency exit control method to simplify the control of the system. The method is installed in the vicinity of the tray, and the sensing unit receives the detection signal and transmits it to the cutting unit to cut the signal; a control unit number cuts off the spindle motor to rotate the sheet, or the system discharges the disc.

Page 8 1263976 V. INSTRUCTIONS (3). [Embodiment] The present invention has been described with reference to the preferred embodiments and the accompanying drawings, which are set forth below. Referring to FIG. 2, the unwinding control device of the present invention is disposed on a light disc drive 10, the optical disc drive 10 is placed on a tray 1 1, and the tray 1 1 carries a light-disc 1 2 optical disc. The film 1 2 is rotated-rotated by a spindle motor 13 located at the center of the tray 11. The front end of the tray 1 1 is connected with a panel 14 , and the panel 14 is provided with an emergency ejection hole • 15 , and the rear end is elastic. The body 16 is placed on the rear side wall of the optical disc drive 10, and a locking mechanism 17 is disposed under the tray 1 1 , controlled by an electromagnetic actuator 18 , and is fastened or disengaged from the solid post 1 9 to fix the tray 1 1 to the optical disc. The playback position in the machine 10 or the removal of the optical disk unit 10 is performed to replace the optical disk 1 2 . In addition, the optical disk drive 10 is provided with a machine board 20 on the bottom surface, and a detecting device 2 1 is disposed on the machine board 20, and the detecting device 2 1 is located on the route close to the tray 11 and the optical disk drive 10, but Detection tray 1 1 Fixes or removes the playback position of the CD player 10. As shown in FIG. 3, the ejection control device of the present invention detects that the tray 11 is moved out of the playback position by the detecting device 21, and activates the detecting device 21 to pass the sensing unit 2 2 to the cutting unit 23, The drive cutting unit 2 3 sends a signal, which is transmitted from the cutting unit 2 3 to the motor control unit 24, for example, the motor control integrated circuit ^, so that the motor control unit 24 cuts the spindle motor 13 to rotate, so that the optical disc - 1 2 can not continue to rotate the purpose. When the system is down, the unloading command of the system will be invalid, and the user can touch the locking mechanism 17 by the emergency ejecting hole 15 , and the forced locking mechanism 17 is disengaged from the fixed post 1 9 . Retire. When the locking mechanism 17 is disengaged from the fixed jaw 19, the elastic body 16 at the rear end of the tray 1 1 simultaneously pushes the tray 1 1 outward.

Page 9 1263976 V. Invention Description (4) 'Bounce, so that the tray 1 1 moves away from the detecting device 2 1 and activates the detecting device 2 1, and the detecting unit 2 2 forms a detecting signal and the detecting The test signal is transmitted to the cutting unit 2 3, and the cutting unit 2 3 directly forms a cutoff control signal to the motor control unit 24 without the system, so that the motor control unit 24 cuts the spindle motor 13 to rotate, and the optical disc is rotated. 1 2 You cannot continue to rotate when you move out of the playback position. Therefore, the unloading control device of the present invention can still cut off the operation of the spindle motor 13 under the system crash, and let the optical disc 1 2 safely exit the optical disc drive to ensure the safety of the tray 1 1 moving out of the optical disc drive 10. Sex. The stripping control device of the present invention can control the motor control unit 24 by forming a cutoff control f number by the cutting unit 23. The motor control unit 24 can be composed of a motor control integrated circuit, and the motor control integrated circuit is generally The preparatory pin (STBY) is provided to control the operation of the spindle motor 13 to cause the spindle motor 13 to enter the standby state and stop the rotation. In addition, the cutting unit 23 can also control the signal to directly cut off the power of the motor control unit 24, so that the spindle motor 13 cannot be rotated. The cutting unit of the stripping control device of the present invention can adopt a selection mode for controlling the spindle motor 13 to stop continuing to rotate. As shown in FIG. 4, when the method for controlling the ejection control of the present invention is executed, the ejection instruction is issued in step S1, and when the system is down, the system is deactivated by the step S2, and then step S is performed. 3, the locking mechanism 17 is emergency ejection, step S4 causes the tray 1 1 to be ejected outwardly, and step S5 is moved by the tray 1 to activate the detecting device 2; 1, through the step S6, the sensing unit 2 2, to step S 7 The unit 2 3 is cut, and then the step S 8 is controlled to cut off the spindle motor 13 to ensure the safety of the tray 11 to be removed from the disc player 10. When the system normally performs the unwinding operation of the optical disc 12, the system returns the rewinding instruction by the step S1, and the step S9 is followed.

Page 10 1263976 V. Description of the invention (5) ^ Normal operation for unloading, proceeding to step S 10 to control the electromagnetic actuator 18 release the 'locking mechanism 177, in step S 4, the tray 1 1 is withdrawn, and Step S1 1 forms a 'tray 1 1 movement to close the induction switch, and proceeds to step S 1 2 to start the system control to cut off the spindle motor 1 3 to continue the rotation. Therefore, the method for controlling the ejection of the present invention can be used to ensure the safety of the optical disk drive in the entire ejection operation. - When the system is in the normal unloading operation, the tray 11 is retracted in step S4, and the detecting device 2 is also activated. The start detecting device 2 1 and the sensing unit 2 2 of the stripping control method of the present invention are also executed. And the cutting unit 2 3 and the like 5 to 7 step #, the spindle motor 13 is turned off, and the spindle motor 13 is stopped to continue to rotate. Similarly, the stripping control method of the present invention can also start the detecting device 21 in step S5, the sensing unit 22 in step S6, and the cutting unit 23 in step S7, instead of the step S 1 1 of the normal unwinding operation, the sensing switch is turned off and the step S 1 2 system control, etc., and can cut off the spindle motor 13 to rotate, can also achieve the purpose of safely unloading the optical disc machine, thus simplifying the system to remove the spindle motor 13 3 rotation control, and improve the reliability of the retraction safety . In addition, the detecting device 21 of the stripping control device of the present invention can also use a conventional inductive switch as a trigger switch to save cost. Therefore, the method and apparatus for controlling the ejection of the present invention not only compensates for the lack of the prior art that the optical disc can safely exit the optical disc under the normal operation of the system, but also provides a system that can simultaneously satisfy the normal and abnormal operation of the system. Both can reduce the need for the disc to exit the disc player, and at the same time replace the system to remove the spindle motor 13 rotation control, and increase the reliability of the retraction safety to meet the invention patent law for novelty, progress and production

Page 11 1263976 V. Description of the invention (6) The application for the use of the industry, so the patent application is filed according to law. The above is only a preferred embodiment for facilitating the description of the present invention, and the scope of the present invention is not limited to the preferred embodiments, and any changes made in accordance with the present invention may be made without departing from the spirit of the present invention. All of them are within the scope of the patent application of the present invention. Φ _

Page 12 1263976 Brief description of the drawing [Simple description of the drawing] Fig. 1 is an external view of the operation position of the conventional optical disk player. 2 is a side cross-sectional view of the unloading control device of the present invention. 3 is a functional block diagram of the unloading control device of the present invention. 4 is a flow chart of a method for controlling the ejection of the present invention.

Page 13 [Main component kh pay description] 10 CD player 11 Tray 12 Disc 13 Spindle motor »4 Panel 15 Emergency ejection hole 16 Elastomer 17 Locking mechanism 18 Electromagnetic actuation xitr 19 Fixing post 20 Machine plate 21 Detect Measuring device 22 sensing unit 23 cutting unit 24 motor control unit S1 ejection instruction step S2 system failure step S3 trigger emergency ejection step tray withdrawal step -5 startup detection device step S6 induction early element step S7 cutting unit step S8 Cutting off the spindle motor rotation step S9 Normal operation step 1263976

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Claims (1)

1263976 VI. Patent Application No. 1. A retraction control device is provided on an optical disc drive having a tray and a spindle motor. The ejection control device comprises: - a detection device, disposed on the tray Nearby, detecting the position of the tray and generating a signal; - a cutting unit, receiving the signal, and generating a stop spindle motor control signal; and - a motor control unit receiving the control signal to cut the spindle motor rotation. 1 . The unwinding control device according to claim 1, wherein the detecting device is located on a route approaching the tray to and from the optical disc drive, and detecting the playback position of the tray shifting the optical disc drive. 3. The ejection control device according to claim 1, wherein the detecting device is activated by the emergency ejection when the system is down. 4. The ejecting control device according to claim 1, further comprising a sensing unit that connects the detecting device to the cutting unit. 5. The ejecting control device according to claim 1, wherein the motor control unit is constituted by a motor control integrated circuit, and the preparatory pin controls the spindle motor to operate. 6. The ejecting control device according to claim 1, wherein the detecting device uses an inductive switch as a trigger switch. The release control device according to claim 1, wherein the detection device is provided on the board. 8. A method for controlling the ejection control, the method comprising: detecting a tray to remove the ejection; and transmitting the detected detection signal; Page 15 1263976 VI. Scope of Application A control signal is generated to cut off the rotation of the spindle motor; and the spindle motor is turned off. The method according to claim 8, wherein the detecting tray is removed from the ejection tray by a detecting device to detect the tray moving away from the playing position and generating a detecting signal. The method of controlling the ejection according to claim 8 wherein the detection signal is transmitted by a sensing unit. 11. The method according to claim 8, wherein the detection signal is generated by an emergency ejection after the system is down. 2. The unwinding control method according to item 8 of the patent application, wherein the control signal for cutting the rotation of the spindle motor is directly generated without system control. The detachment control method according to the eighth aspect of the invention, wherein the control signal for cutting the rotation of the spindle motor is directly generated by a cutting unit. The ejecting control method according to the eighth aspect of the invention, wherein the cutting of the spindle motor is to cut off the power of the spindle motor. The ejection control method according to the eighth aspect of the invention, wherein the spindle motor rotation is cut to control the spindle motor to enter a preliminary state to stop the rotation. The release control method according to item 8 of the patent application scope, wherein the slice control method is simultaneously executed under the normal unloading operation of the system. 1 7. The unwinding control method according to item 8 of the patent application scope, wherein the ejecting control method replaces the control of the normal ejecting operation system to stop the rotation of the spindle motor. Page 16