TWI344135B - Optical disc device and method of controlling the same - Google Patents

Description

23S90pif IX. Description of the Invention: [Technical Field] The present invention relates to a disk device and a method of controlling the same, and more particularly to a disk I having a slot for receiving/removing a disk (sl〇t) How to set and control the optical disc device. [Prior Art] Examples of data storage media include magnetic disks such as floppy discs and hard discs, magnetic tapes (magnetjc_e), semiconductor memory chips (for example, read-only memory (read_〇nly) Mem0l7, r〇m) and Ik machine access memory (rand 〇 m_access memory, ram) and optical disc. 1. Due to the development of large-capacity optical discs and their low cost, the use of optical discs (hereinafter also referred to as "discs") A sharp increase. Depending on the capacity of the disc, it can be divided into two types: compact disc (CD) and digital versatile disc (DVD). For example, 65〇MB CD_R, CD-RW, 4.7GB DVD Discs of -R, DVD+r, DVD_rw, and dvd+rw are possible for data recording, deletion, and reproduction (repr〇ducing). In addition, HD-DVDs and Blu-ray discs with 20_GB or larger capacity are under development. A compact disc can be used as a data storage medium for portable electronic devices, such as a notebook computer and a camcorder (camc〇rder). However, the optical disc device using the optical disc is not suitable for portable use. Sub-device because the disc device is too large for the portable electronic device. Although the siim disc device can be used in portable electronic devices, it inserts the disc 1344135 23590pif into the ultra-thin disc device or It is inconvenient to remove from an ultra-thin optical disc device. In a tray type optical disc device, the disc is placed on a tray or a cassette and then loaded into the disc device. However, in the slot type (slot) -in type) In a disc device, the disc can be automatically inserted into or removed from the slotted optical disc device through a slot formed in the slotted optical disc device. Compared with the tray type disc device The slotted optical disc device is more suitable for portable electronic devices. Meanwhile, the slotted optical disc device can be used together with a disc having a diameter of only about 12 cm (hereinafter referred to as "large diameter disc"). However, due to high density The continued development of discs, the use of discs having a diameter of approximately 8 cm (hereinafter referred to as "small diameter discs") is growing, and thus can be used together with small diameter discs. The demand for slotted disc devices is growing. Moreover, the standard size of large-diameter discs or small-diameter discs can be changed. In addition, the thickness of disc devices for portable electronic devices (such as notebook computers) has an upper limit. The upper limit is currently about 12.7 mm, which can be changed. Therefore, there is a need for a slotted optical disk device that can be used together with a large diameter disk and a small diameter disk and a thickness less than the upper limit. Moreover, although the structure of the slotted optical disk device for loading and coupling the disc should be small, the slotted optical disk device should not be excessively small and light to prevent the slotted optical disk device from being easily damaged by vibration and collision and Prevent data read/write errors. In view of the above, there is a need to provide a slotted optical disk device having a thickness less than the upper limit thickness, which requires fewer components and can be used with various diameters (for example, large straight 8 U44i35 2359〇ριΤ, ~ stable against [invention] The 29% (4) and/or 彳 (4) parts of the present invention will be provided in the 'Monthly' and the part will be described in the practice of the present invention, and the present invention provides a method for controlling the optical disc device. The optical disc is mounted, hits 'and by automatic slotting (editing):: to prevent the earthquake from being automatically inserted into the disc device and from: the diameter of the disc, and the thickness of the disc device can be reduced to the present The thickness limit t is set to be removed. According to the aspect of the invention, the optical disc is provided;: the lower part. T 'When the disc is lightly coupled to the turntable (Xiancheng 2: the main single sheet is written to the disc and the slave The disc reads the data 1 疋 turntable and holds the disc; and the diameter of the reversible 2 guide disc piece of the actuatable lever member, the rod member loads/unloads the discs of various diameters according to different discs. The private movement enables the servant to be able to The loading member may include: applying an elastic force to the disc in the direction of the magazine; the surface, on the side of the disc, d:lever) 'package_lever', pushing the disc in the preset direction and mounting a The load bar (W-g moves relative to the preset direction. ', the guide bar and § when the disc is unloaded, the guide bar can have a four bar ^bar) structure and when the guide bar moves 9 1344135 23590pif to be substantially parallel to the loading direction of the disc mobile. The optical disk device may further include a locking unit that locks the guide bar and the loading lever in the standby mode. When the guide rod and the loading rod are both advanced by the disc manually inserted through the slot of the optical disc device, the locking unit unlocks the guide rod and the loading rod. The locking unit may include a first link including a first cam connected to a first bob formed on the guiding rod and wound around the first winding by the movement of the first cam a chain rotation; and a second link including a second cam coupled to the second dome formed on the loading bar and rotated about the second hinge by movement of the second cam. The end of the first link, relative to the end forming the first cam, can be pivotally coupled to the end of the second link, the end being opposite the end forming the second cam. The first link may include a first locking portion at an inflection section thereof, and the second link may include a second locking portion at a deformed portion thereof, wherein the first locking portion The guide rod is locked by constraining the first round convex shell thereto, and the second locking portion locks the loading rod by restraining the second round convex shell thereon. When the first and second links are rotated in opposite directions, since the disc is manually inserted into the optical disc device, the degree of deformation of the first and second locking portions can be reduced, so that the guide lever and the loading lever are unlocked. The first link may include a first loading portion, and the second link may include a second loading portion, wherein when loading/unloading the large diameter disc, the first and second round convex shells are respectively along the first and the second When the loading portion moves, and 10 23590pjf δ loads/unloads the small-diameter disc, the first ^^ and the disco-convex shell move along the second loading portion. I ' # ϋ· tin ^t^^V[ng S〇UrCe) : M ^ ^ The main slider can actuate the rack of the main source when moving linearly (4), when the main slider can be stepped into. Rod to move large straight _ sheet H = - ' can actuate the loading rod to move the small diameter ^: and 'two loading cam' can actuate the change of the movement amount of the loading rod, first and according to the optical disc device The diameter of the disc manually inserted into the Ϊ of the rod if rod may include: loading the cam round convex shell, according to the diameter of the disc manually inserted by the optical monument device = slot and the first or second carrying cam: 'The first and second loading cams can be moved away from the driving unit to include a sub-slider (sm), and interlocked with the 'for the sub-slider to move in a reciprocating motion, the sub-sliding i ^ Η is not 叩 (10) (four)' After the disc is rotated, the slider moves the guide rod, and the eject lever separator moves the eject lever away from the disc after the disc is turned. 〃 撼 ^^ The rod separator may include the first and second guide rods Separator, move the guide rod away from the disc according to the diameter of the #片The first and second guide rod separators can be moved by the diameter of the first and second guide rod separators according to the diameter of the disc manually inserted through the slot of the optical disc device, including the first and second ejecting rods, the diameter of the 1344135 23590pif disc. The movement guide rod is selected to move away from the disc by the amount of movement of the guide rod. One of the first and second eject lever separators may be selected to be the eject lever according to the diameter of the disc manually inserted through the slot of the optical disc device. The amount of movement is moved away from the disc to move the eject lever. The sub-slider may further include a guide rod adjustment portion that adjusts the movement of the guide rod to advance the guide rod relative to the small-diameter disc when loading the small-diameter disc. The sub-slider may further A coupling/decoupling guide is included to guide the main unit when the main unit is lifted to engage with the disc and moved downward to decouple from the disc. The drive unit may further include a guide rod adjustment link Adjusting the movement of the guiding rod when loading the large diameter disc to advance the guiding rod relative to the edge of the large diameter disc, the guiding rod adjusting the connecting rod The sub-slider rotates to release the guide rod after the large-diameter disc is engaged to the turntable. The drive unit may further include a connection link connecting the main slider and the sub-slider. The main slider may further include Actuating a connecting rod cam of the connecting rod. The loading rod may include: a first loading rod including a one end connected to the main slider and rotatable about the first loading rod; and a second loading rod capable of winding the second The load bar hinge rotates, and the second load bar includes a pivot end of the 12 2359 〇pjf 2359 〇pjf and a second end of the t-bar and the other end that is in contact with the edge of the disc inserted into the optical disc device. , 于光Ϊΐ Ϊ f can proceed - the step includes the Shuer (ShuUer)' to close the slot of the disc device after the disc is loaded into the first & clothing. The shutter can be actuated by the main slider. The guide rod and the loading rod can be resiliently biased toward the disc. The disc device can further include diameter detection to (10)

The slot of the optical disc device is inserted into the diameter of the disc. The detector can be included as a large-diameter disc. The switch is to be switched by the paste element, and the movable switch is used to open/close the drive singles ^ Tian, and the slot of the work industry first inserts the disc manually into the dry I#, the drive switch is turned on and the drive is turned on and driven. Sigh; when unloading _ set position (four) day! (four) operation, and when the disc is smashed by the element i and 鸪H", the drive switch is turned off to stop driving the single 兀 and the disc is wrongly loaded by the elastic force of the eject lever . As early as loading/unloading a large-diameter disc, the rod can move both the mW and the garment load to lock, and the eject lever and the loading rod can move. When M is dry, the distance between the guide rod in the mode and the adjacent groove between the loading rods can be greater than the diameter of the inserting disc. The thickness of the disc is smaller than the diameter of the large-diameter optical disc device is less than or equal to 12.7 positions. According to another aspect of the present invention, a method of controlling a disc device 1344135 23590pif, the disc device includes: a main unit that rotates a turntable when the disc is coupled to the dial and includes writing data to the disc and a light reading unit for reading data of the disc; a lever member guiding the disc to load the disc to a position where the center of the disc is aligned with the center of the dial, and guiding the disc in reverse to unload the disc, the rod member Capable of loading/unloading discs of various diameters; driving unit, actuating lever member; and diameter detector for detecting the diameter of the disc, the method comprising: detecting the diameter of the disc inserted into the optical disc device by using a diameter detector; Moving the lever member along a path that depends on the diameter of the disc to load the disc to a position where the center of the disc is aligned with the center of the dial; the handle is coupled to the dial; and the lever is ejected from the edge of the disc The component can execute by allowing data to be written to and read from the disc; and writing data to and from the disc. The above and other objects, features and advantages of the present invention will become more <RTIgt; [Embodiment] The present invention will now be described more fully hereinafter with reference to the accompanying drawings. However, the present invention may be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Instead, the embodiments are provided so that this disclosure will be clear and complete, and The concept of the invention is conveyed. In the drawings, like reference numerals indicate like elements. 1 shows a schematic view of an optical disk device in accordance with an embodiment of the present invention. A bezel 20 is formed in front of the optical disc device. The front cover 20 includes a slot 14 2359〇pjf 1〇 The disc is inserted through the slot 10 and ejected. When the eject button 30 formed on the front cover 20 is pressed, the disc loaded on the optical disc device is moved from the optical disc device. A display lamp 40 is used to display the operation of the optical disc device. In the consistent embodiment of the present invention, the optical disc device may be a slim optical disc device having a thickness less than a predetermined degree (for example, 12.7 mm). Can be installed inside the two laptops. The lever member and the drive unit of the present invention (which will be hereinafter = 4) can be designed to have a small shape with fewer components, so that the optical disk device using the lever structure and the drive unit can be formed into an ultra-thin shape. 2 shows how a large diameter tablet can be introduced into the guide bar 21A of the optical disk device and the load bar 25 (refer to FIG. 2, the optical disk device includes the main unit) (8) and according to an embodiment of the present invention. The lever member 2 〇〇. The main unit 100 includes a turntable 11 that receives a disc, and the rotary dial H0 = the main vehicle is driven by a motor (spindle is _2 〇, the optical reading unit 13 〇, and: the direction shifting and subtracting reading unit丨3Q feed motor ((4) coffee chart π) ο The lever member 200 guides the disc inserted through the slot 10 to the center of the disc 盥=110 and the disc is coupled with the dial 1). In the case of a film, the disc is retracted from the turntable 110 and the opposite direction of the monument is guided by the lever member. The drive unit actuates the lever member to move the main unit in the vertical direction by loading and unloading, and to move the disc and the turntable in the vertical direction. m engages 250. = member 200 includes an eject lever 230, a guide rod 210, and a load lever flat rod 230 applied in the unloading direction (negative γ-axis direction) to unload the disc ^ main strip 1344135 23590pif W stem 210 is included in the loading The disc guiding surface 219 extending in a straight line in the direction (positive Y-axis direction). The guide rod 210 has a four-bar linkage structure and is moved in a shape that is substantially parallel to the loading direction. Therefore, the disc can be stably loaded into and unloaded from the optical disc device. The guide rod 2] can be combined with the first and the first The two auxiliary links (auxUiary links) 211, 212 are moved in the form of a parallelogram. In this case, the guide rod 210 can be rotated without rotation in a predetermined direction. 苐 = auxiliary link 211 One end is rotatably fixed to one side of the optical disk device by using the first auxiliary link hinge 213' while the other end of the first auxiliary link 2 is rotatably fixed to the guide by using the first guide bar hinge 215 Similarly, one end of the second auxiliary link 212 is rotatably fixed to one side of the optical disc device by using the second auxiliary link money chain 214, and the other end of the connecting rod 2]1 is used by using the second The guiding rod key 2 ^ is fixedly fixed to the guiding rod 210. The first auxiliary precision 2u auxiliary connecting rod 212 has the same length. a, the younger one of the 4 poles 25 〇 adjacent slots 1 〇 form and load the disc, Insert the disc into slot 10. When unloading the disc, install . :: rod 2 moves in the reverse direction to guide the disc to the guide bar slot square] ^ = Default = 1 mesh negligent heart: opposite = 161344135 2359〇pif

Fig. 3 is a view showing how the large diameter disc body is in contact with the eject lever 230 after the guide rod 2U) in the large-diameter disc 1 is moved to the disc unit and the loading rod 25 is pressed according to an embodiment of the present invention. When the guide rod 2 〇 and the load ^ 250 are advanced by the manually inserted disc month, the guide rod 2 〇 and the load clerk 250 can be unlocked (described below). When the large-diameter disc is inserted, the guide cup 210 and the loading rod 250 are advanced by the large-diameter disc DL, and thus a loading space for the large-diameter disc y DL can be formed. Fang; this form of sadness, when further inserting a large diameter disc ο. At the time, the large disc and the 1 DL start to advance the eject lever 23〇. At the same time, the drive switch bias (see Figure II) can be used to open the drive unit to actuate the lever member 2 (10). When the disc manually inserted through the slot 10 reaches the ON position of the drive switch 46 (〇n-P〇siti〇n), the drive switch 46 is turned on, and the drive unit starts operating (not shown). When the disc is unloaded away from the ON position of the drive switch 46, the drive switch 460 is turned off, and the drive unit is stopped. herein,

The object is unloaded by the elastic force applied to the disc by the eject lever 230. The pop-up detail may also include a disc contact portion 235 for guiding the disc. As shown in Figs. 11 to 18, the drive switch 46A can be formed at a preset position within the path in which the eject lever 230 moves to be opened or closed by contact with the eject lever (10). For example, when the insertion disc passes through an imaginary line drawn from the disc contact portion 255 of the loading lever 250 of the parent, the drive switch 46A can be turned on. ...7 Solid light monument w two large diameter disc DL is loaded on the first dish, and it is still not shown with the turntable. When the center of the disc is aligned with the center of the turntable, the drive is single 1344135

2j590p, T :=:== Please. Figure 5 shows, according to the present invention, how the large straight disc DL is positioned to move away from the large diameter disc in the disc device as seen by her 4 (10), rod member 2. Since 4 The sheet rotates. Here, the drive source is moved away from the disc moving rod, and the straight disc DL is retracted and unloaded from the disc device as shown in Fig. 2 to Fig. 5. In the reverse order of the retracting / S, « formed in the frame 疋 heart 烕The outside of the disc device. The main cover is 5〇6〇 dry 0 disc to remove the disc from the turntable no. Although not shown, the early 兀00 includes the round convex shell on the side part, and the main, Code #Λ叩, 参«7), which corresponds to the convex hull on the side part;; ^ Therefore, the main slider containing the linear movement 35 is exaggerated, the main unit (10) can be fnt two when the main unit 1 〇 When 0 moves downward, the _50 is retracted through the outer hole of the rod hole 6 and the disc is transferred to the turntable n 以便 to decouple 110. The sill level 6 shows a small diameter according to an embodiment of the present invention. The disc Ds ^ turntable no coupling and the lever member 200 are positioned away from the small diameter disc os. The lever member 200 is based on the disc inserted into the disc device. The path moves in different paths. As shown in Fig. 6, when the small-sized disc Ds is inserted into the optical disc device (i.e., when the small-diameter disc DS is loaded on the optical disc device), the guide rod 210 is kept in the locked state. , small diameter disc ^ ds coupled with turntable Π0, and guide rod 210 away from small diameter disc 'Ds浐2359〇pif 2359〇pif

There are fewer. Referring to Figures 5 and 6,

When the J piece DS is used, the movement of the loading rod 250 is much more than that of loading the big rod. However, the movement of loading the small-diameter disk is higher than the movement of the moving shutter 440 when the large-diameter disk DL is loaded to block the slot and the other disk is inserted into the slot 10 = the rod member can be damaged 2〇〇 or other components. Therefore, the shutter 440 is raised to block the slot 当 when the disc is loaded, and when the slot 1 is not loaded, the temple shutter 440 is moved downward to open the plug. for. This structure &apos;closer 440 can be moved by the main slider 350. The Month 350 can move the shutter 44 by various mechanisms (not shown). Figure 7 shows the bottom of the optical disc device according to an embodiment of the present invention, the vertical = fixed shirt and the lever member 2 (8) are in a locked state, Fig. . The bottom view of the optical disc device according to the embodiment of the present invention, wherein the lock: 兀4〇〇 and the lever member 2 are unlocked by the large-diameter disc DL inserted into the optical disc device. Referring to Figures 7 and 8, the locking unit 4A and the locked and unlocked state of the dry member 200 are shown. In the standby mode, the guide rod 2K) and the loading lever 250 are locked. When the introduction of the loading lever 250 is advanced by the slot inserted by the slot, the locking unit 4 unlocks the guiding lever 210 and the loading lever 250. The drive unit includes a drive source 3A and a main slider 350. The main slider 35 is connected to the drive source 3A via a worm wheel (w〇rm purchase ι') 3g gear train 305 and a rack 355. The main slider 35A can actuate the lever member 2〇〇 when moving in a straight line. The main slider 350 includes first and second loading cams 36, 362. 1344135 23590pif Tian Yudi 1 and the circumference of the disc inserted into the disc device 'H, the dry 5 can move along the 踝. The first loading cam 361 is used to cause the loading lever 250j to carry the 2-diameter disc DL when the second is inserted through the slot 10. When the small-diameter disc Ds is inserted through the slot 1Q, the second: the carrier cam 362 is used to load the charging rod 250 into the small-diameter disc = when the Cao 1 is inserted into the disc, the vibrating rod 25 is driven by the disc. The amount of movement of the sheet advancement and the advancement of the I-carrying cup by the disc may be determined by using the first-loading cam 361 or the second loading male socket 1. The diameter of the disc inside the wound" The load # 2) 0 loading cam round convex shell W and the younger - and the second loading cam stroke, such as one spit. In the standby mode shown in Fig. 7, the loading cam dome 256 is set to be adjacent to the first 。%. The double 06 clamp position is as shown in Fig. 8. When manually inserting the large piece DL to _10, since the load lever has a relatively large amount of motion, the loading cam is 256 directional; the load cam 36] moves. As the further insertion unit is opened to pass the two 湄 5 士 &lt; work piece DL, the drive two "pass" ... the original to the main slider 35 〇. the knot convex 2 5 6 along the first - loading cam 3 6 movement Qian convex ^ ® Female: 9 do not 'When manually inserting the small diameter disc d inside 4, due to the small load of the loading rod 25, the loading cam is relatively more momentum than the Christ. Stay in the standby mode position, both Slip-, two 362. With the further insertion of the small one to open the power supply to the main slider, the moving unit 2 is allowed to load along the second, and the &amp; cam cams the convex cam 戟 cam 362 privately. In this way According to the diameter of the disc inserted into the 20 1344135 23590pif = disc device i, the loading cam round convex shell 256 and the loading capacity 25 〇 / 〇 different road hollow movement. That is, the loading rod 250 can be used to load various diameter discs The load carrying rod 25 includes the first and second loading rods 25 M2. The first = one end of the carrier cup 251 is connected to the main sliding by the loading cam round convex hull 256. The 〇' and the first loading rod 25 ] can be swung over the first load bar hinge 253. The second load bar 252 can The second loading rod hinge 254 is rotated. One end of the second loading rod 252 is pivotally connected to the other end of the first loading rod 251, and the other end of the second loading rod 252 is coupled to the disc contact portion 255. The locking unit 400 includes first and second links 410, 420. The first link 410 includes a first cam 411. As the first cam 4n moves, the first link 410 is on the first cam 4丨2 Rotating. The first cam 4n is meshed with the first round convex shell 22〇 formed on the guiding rod 210. The second link 42〇 includes the second cam 421. As the second cam 421 moves, the second link 420 is in the second The second cam 421 is rotated. The second cam 421 is engaged with the second round convex shell 260 formed on the loading rod 250. One end of the first link 410 relative to the first cam 411 is pivotally connected to the second joint The rod 420 is opposite to one end of the second cam 421. Referring to FIG. 1A, the first cam 411 includes a first locking portion 4丨5' at the curved portion and the second cam 421 includes a portion at the curved portion. Second locking portion 425. The first locking portion 415 fixes the first round convex shell 220 of the guiding rod 2] to lock the lead The rod 210, and the second locking portion 425, fix the first to convex housing 260 of the mounting rod 250 to lock the loading rod 250. When manually inserting eight large diameters 21 2359〇pjf into the optical disc device, the two are coupled by a pivot. The first and the Ϊ - ^ ΓΓ 42 0 are rotated in opposite directions. In this case, the first two shells are away from the first and the second locking portion 415 so that the guide rod can be added and the rod (four) can be unlocked. 2 When the small-diameter disc (10) is inserted into the disc, the first-load/dry 4IQ, 42Q does not rotate 'and thus the 彳|guide rod 210 and the loader 250 remain in the locked state. In the operation of P VII, Fig. 8 and Fig. 1 〇, the first-circular convex shell 220 ::: the auxiliary link hinge 2 Π rotates, and the second round convex hull 26 rotates around the =-clamp hinge 253. Reference picture! Q, the locked state of the first and the brother-cam 41b 421 is indicated by a solid line, and the unlocked state is indicated by a broken line. For example, when the large straight disc dl is manually inserted into the optical disc in the locked state, a moment is applied to the first loading lever 251 to rotate the first loading lever 251 on the first loading lever hinge 253 counterclockwise. . At the same time, the second convex convex shell 26Q* adds a torque to the second link 42. Rotating the second link 420 on the second hinge 422 clockwise, and applying a torque to the first link 410 by the second link 42, the first link 410 is coupled to the second link 42 by a pivot The first link 410 on the first hinge 412 is rotated counterclockwise. Therefore, the first cam 411 is positioned as indicated by a broken line in FIG. However, since the first locking portion 4 5 applies a force (T) to the first convex housing 220 in a direction directed to the first auxiliary link hinge 213, the first convex housing 220 cannot be unlocked. In this case, when the moment (M) is applied to the first auxiliary link 211 to rotate the first auxiliary link 211 clockwise, the first dome 52 receives the moment (M). Therefore, the first dome housing 220 can be moved away from the first cam 411 by 22 1344135 23590pif the first locking portion 415 to the unlocked position. R, when both the loading sample 250 and the guiding rod 210 are advanced, the loading rod 25A and the guiding rod 21〇 can be unlocked. When only one of the loading lever 25 〇 and the guide lever 21 推进 is advanced, the lock cannot be released. Figure 9 shows a bottom view of the relationship between a single &amp; 4 inch and a small diameter disc DS in accordance with an embodiment of the present invention. In the standby mode, the distance measured between the loading rod and the guide rod 210 adjacent to the slot 1 can be greater than the diameter of the small diameter disc #DS but smaller than the diameter of the large diameter disc team. Therefore, when the large-diameter disc DL is manually inserted into the optical disc device, the guide lever 210 and the loading lever 25 are both advanced, and thus the lock can be released, which is when the manual insertion of the small-diameter disc Ds into the optical disc device is performed. Only the guide rod 210 and the loading rod 25 are pushed forward and can be released. Referring to Fig. 1A, the first and second cams 411, 412 respectively include a first and second loading portions 416, 426. When the large-diameter disc DL is loaded, the first and second round convex shells 220, 26 are moved along the first and second loading portions 416, 426. When the small straight disc (10) is loaded, the first round convex shell 29〇 stays at the first locking portion 415, and the second convex convex shell 260 moves along the second loading portion 426. The small diameter disc is still passed between the locked guide rod and the I pole 250 and then the eject lever 23 is moved to open the drive 460. When the drive switch 46 is turned on, although the guide lever 21 is locked = the load lever 250 moves along the second loading portion to load the small diameter mountain, the sheet DS. That is, it is easy to insert the large straight disc DL, and the guide lever, the ejection lever 230, and the loading lever 25 are moved to load the large-diameter disc dl. When 23 1344135 2359〇pif = into the small DS disc DS' guide rod state, and only the rod 230 and the loading rod 25 〇 move to carry the small diameter disc 叱. The plugging device can include a diameter detector so that it can be used as: During the disc loading process, the disc is determined by the operation of the large-diameter disc DL' drive unit (2) and the drive switch 460. When the decision is made to insert the large %' drive unit, the operating time is adjusted to be in bitmap 5 - not:: piece 200. When it is decided to insert into the small-diameter disc Ds, the drive is adjusted to position the rod member _ shown in Fig. 6. Therefore, the switch 460 can shape the opening of the ^=== switch 46°, depending on the two inserted in the optical disc. = bottom view of the optical disk device 妁田彳 sliding β 370 according to the embodiment of the present invention, Fig. 12 &lt; 1 for large-diameter disk DL disk rotation like η〇^二 according to the present embodiment #F] r ; R π ” turntable] 10 coupling after the bottom of the sub-slider 370 ^ ^ 3 Γ unit (four) - splicer 37 〇 = only with the link 380 and connecting rod 39 〇. 370 can be reciprocated by J-slide by connecting rod 390. Sub-slider heart = and Le-guide bar separation boundary 37 and inside the disc U Μ # Move the guide rod 21G away from the loaded disc to depending on Different positions of the disc diameter. 24 ^ 44135 23590pif 3I two t, 3: in Ϊ: step, including the - and the second ejector separator shift, depending on the position of the disc diameter. Tian Dazhi soap dish DL and turntable] 10 off the clutch 37] move the bow i guide rod 210 away from the large diameter brother lead f = diameter disc DS like 1ιη 如人斤田小直动引莲产 coupling弟二导The rod separator 372 moves the lead 4 210 away from the small-diameter disc Ds. When the large straight turntable is lightly coupled, the first eject lever separator 375 moves to eject. w When the small diameter disc core = stone cross piece (four) dry knife I 376 move the eject lever 230 away from the small diameter '. According to the bow 1 guide 21 〇 inserted into the disc in the disc device to move the second guide rod The separator 371 still uses the second guiding rod 2° in the same manner. 'According to the movement amount of the eight-disc disc according to the ejecting rod 230', the first pop-up lever separator 375 is used. 376. The sub-slider 3 70 may further include a guide rod adjusting portion 3 7 *, when inserting the small straight (four) sheet DS into the optical disc device, adjusting the shaft of the guiding rod 21〇 to advance the guide relative to the edge of the small-diameter disc Ds The lever 21 〇. The secondary sliding benefit 370 can further include a turning/retracting guide 379, when the main unit: 〇〇 up, coupled with the disc and moving downwards; and the main unit is guided by the retracting 丨When the large diameter disc DL is loaded, the guide rod adjusts the movement of the link 38 shackle "guide rod 210" to advance the guide 210 with respect to the edge of the large diameter disc sink. Then, after the large-diameter disc DL is coupled with the turntable, the 25 1344135 23590pif sub-slider 370 rotates the guide rod adjustment link 380 to release the guide rod 210. The guide bar adjustment link 380 includes a round convex case 381' engaged with a cam 378 formed on the sub-slider 370' such that the guide bar adjustment link 38 is interlocked with the sub-slider 370. ',

The connecting rod 390 is coupled to the main slider 35A and the sub-slider 37A so that the main slider 350 and the sub-slider 37A can be interlocked. The main slider 35A and the sub-slider 370 respectively include connecting rod cams 35], 377. The connecting rods 351, 377 are engaged with the connecting rods formed on the connecting rod 39〇 so that the connecting rod 390 and the main slider 35〇 and the sub-slider 37〇: are interlocked with the disc and After the turntable &quot;〇 coupling, the loading bar 250 moves away from the disc according to the wheel of the brother-and the second-hand cam 36b 362. '

Figure 2 is a diagram of a method of controlling an optical disk device according to the present invention. Turn on the disc device in step _. In step 6 , the square pole member 2〇0 and the drive unit stay in the standby mode. In the ^ _62, when the disc is inserted into the disc device by the slot 0, the initial reset (]. (10)) position shown in the second step is set. If the main unit is the component 200 and drives the single main unit 1〇. , rod member 200, and drive: are:: to::' position. If the main unit 1 〇〇: 兀 is moved to reset the initial reset position, in step 63 and drive 7L early to locate the inserted disc. Μ, the bar detector detects the slot 10 in step 640, and if the slot inserted by the slot is large 26 1344135 2359〇pjf straight disc DL·, the lever member 200 is introduced At the same time along the large diameter disc DI eve: big straight (four) month sink to the center of the preset position DL and the center of the turntable m ^ shift = make the large diameter disc 4 yuan (10) rise to turn the turntable 110_ combined / large == 641 In the middle, the main sheet is positioned in the step bar member, away from the diameter of the crucible 'straight 4 ΠΓ = if made to the slot] 0 inserted disc is small

Set two, =::: clever path... The preset position is aligned with the center of the turntable m. In the step (6), the coffee and the diameter disc DS. Thereafter, the step member 2 is positioned away from the small straight disc Ds.

The sheet type is completed in step 66, regardless of whether the disc is a large-diameter disc DL or a small-diameter disc S'. In step 6, the disc device reads data from the disc and writes the data to the disc. The reverse order removes the disc from the disc device. That is, the lever member is thin: the force is applied to the edge of the disc&apos; and the main unit 丨00 is moved downward to advance the turntable n 〇 from the disc by pushing the disc with the fader 50. Next, the lever member 200 is moved along different paths depending on the diameter of the disc to unload the disc from the optical disc device via the telecenter 10. 5 shows a plan view of a protection unit of an optical disc device according to an embodiment of the present invention, wherein when a large-diameter disc DL is manually inserted into the optical disc device, FIG. 16 shows a plane of the optical disc device according to an embodiment of the present invention. Wherein § manually inserting the large-diameter disc DL at the position where the drive unit is turned on; FIG. 7 shows an enlarged view of the portion of FIG. 6 according to an embodiment of the present invention, 27 2359〇pjf M and FIG. 18 are shown according to the present invention. EMBODIMENT OF THE INVENTION The figure of the optical disc device is an enlarged view of how the load acting on the loading direction of the disc is absorbed. Figure 15 to Figure 18 illustrate the structure of the protection unit and the maintenance of the 5, 7 ^ by the absorption (absorb) on the rod member 200 (see the figure to protect the disc. No matter loading / unloading straight ~槿杜? L small-diameter disc DS 'protection unit can absorb the load on the rod = 18 load 'but for the sake of simplicity, figure 5 DSB,: large diameter disc DL. When loading / unloading small straight The path of the movement of the disc gamma 梓 member 200 is as shown in Fig. 6, Fig. 9 and Fig. 1, Fig. 15, when the disc is inserted into the disc device, the drive is: the display state = the state of the display. The slice is set as shown in Figure π~'The drive switch is completely turned on and thus the drive unit is turned on. _=The source is applied to the disc device and the drive unit is turned on, the rod unit moves along the path. Therefore, even the step-in/step In the position shown in 丨6, the 'disc device will not be smashed; π will continue to be powered off' lever member 2. It will not be shown by 2: Bottom: If the disc is inserted further into As shown in Figure 16, the load will be applied to the rod member 200 by the disc, and the m or the disc device will be damaged or broken. : And when the spare disc is unloaded from the disc unit by the drive unit, the disc month P J can be: blocked der). In this case, the lever member compensates for excessive load in the loading direction and is thus destroyed. The protective material absorbs the load on the shaft member. 28 1^44135 2359〇pif _ In one embodiment of the invention, the guiding rod 2]0 includes the first and the first. ”211, 212, and the loading rod 25〇 (see FIG. 2) includes the first and the first one. The carrier rods 251, 252, and the power source are driven from the drive source 3 via the worm wheel 3 〇] and the transmission mechanism 305 to the main slider 35 〇 and the rack 355. When the lock lever 21 is engaged 〇 (see Figure 2) and the loading lever are elastically biased in the unloading direction and can be moved along a preset path. When manually inserting the disc/DL to the disc unit, 'guide rod 2 (7) 装载 and load rod 贞. Then If the large-diameter disc OL· is inserted in the step-by-step manner, the driving unit 2 is opened to actuate the guiding rod 21〇 and the loading rod 25◦. At this time, since the force of impacting the large-diameter disc DL can pass through the guiding rod 21 If the 〇 or split carrier 25 is transferred to the drive unit, the light county will be damaged or destroyed. Moreover, when the pop-up #230 is actuated by the drive unit, the force striking the large-diameter disc dl is transmitted through the eject lever 230. To the drive unit. Therefore, the disc device may be damaged or destroyed. &amp; 9 The protection unit can be formed on the eject lever 23〇 The ejecting lever 230 moves more than the lever member 2 (8). In this case, the distressing single element may include an absorption spring 720, a wiping pressure 750, and an eject lever switch. And stroking a portion of the occlusion slot ((1). groove) 740. • The eject lever 230 is biased in the unloading direction by the eject lever spring 710. The absorbing magazine 720 is provided to be separated from the eject lever 7] The second loading direction acts on the abnormal load of the eject lever 230. The waste portion 75〇 is formed on the eject lever 230. The pressing portion 75〇 contacts the absorption elastic cyanine 72〇 to (4) absorbs the elastic yellow 720. The eject lever The test switch 73〇 and the eject lever mo are mutually 29 1344135 23590pjf I; and the second test switch 730 is used to set the value of the movement of the eject lever 23 by =1:°' or to the sub-slipper.

The operation squeezes a portion of the impingement groove 740 to separate the operation of the pressing portion W. That is, the pressure I even when the eject lever detecting switch 730 is not moved (4) m is curled by the eject lever 230 and the pressing portion TM3. In one embodiment of the present invention, the end of the ring of the absorbing lift pop-up bar 230 is: ί ? ^ ί 720 can be fixed to the eject lever detecting switch port. It can be accessed to the extruded portion 75〇. Dazhi 17 shows the protection unit of Guangxian County when manually inserting the large straight piece DL to the position where the drive unit is turned on. In the case of Yu Dazhi, the absorption spring 72G and the eject lever detection switch 73〇. Oh, and / has been compressed. When the large diameter disc month DL is forcibly inserted from the position shown in Fig. 6 and Fig. u, although the eject lever 23 is not rotated as shown in the figure, the eject lever detecting opening 730 is not further rotated. In this case, the squeezing portion 7 formed on the eject lever 23 is squeezed, and the spring 720 is absorbed by the strong 2 "load. When the optical disc device is turned on, the drive source 300 starts to actuate the rack 355 to move the main slider 35A from the position shown in Figs. 16 and 7. However, when the optical disk apparatus is powered off, even when the eject lever 23 is rotated to the position shown in Fig. 8, the drive source 3 (8) does not operate. The weight 2 350 does not move from the original standby mode position. °° 30 1344135 23590ριΤ The following describes the optical disc device and the method of controlling the optical disc device. The number of components and the total thickness of the optical disc device can be reduced. The disc 2 can be inserted by the automatic mannequin method and removed from the disc device. Depending on the diameter of the disc of the device, the rod member can be moved along different paths. The disc device can prevent damage or damage. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a perspective view of an optical disk device according to an embodiment of the present invention. Figure 2 shows how a large-diameter disk can be advanced into a disk device according to an embodiment of the present invention. A perspective view of the guide rod and the loading rod. = 3 shows a perspective view of how the large diameter disc is contacted after the large-diameter disc moves the optical monument in accordance with an embodiment of the present invention (4) and the seismic load rod. A perspective view of the root that is loaded into the garment but not yet coupled to the carousel. ', Figure 5 shows an embodiment of the present invention, such as the large cymbal shank shown in Figure 4, and the rod member positioned away from the disc device. A perspective view of the disc. The agricultural figure 6 shows how the small straight disc fits with the turntable 31 2359〇pif and the rod member is positioned away from the view according to an embodiment of the invention. The small diameter disc in the device is transparent: display according to this EMBODIMENT OF THE INVENTION The optical disc loading diagram shows that the locking unit and the lever member in the light according to the embodiment of the present invention are composed of 捍λ &amp; " and ", and the locking unit in the large-diameter disc image inserted into the optical disc device and The rod member is in the bottom view of the lock; its unlocking element and the small diameter disc. FIG. 9 shows a bottom view of the relationship between locking a single piece according to an embodiment of the present invention. FIG. 10 shows the disc splitting according to an embodiment of the present invention. An enlarged bottom view of the first and second locking portions. Fig. 1] is a bottom view showing a sub-slider of a disc mounted in a standby mode according to an embodiment of the present invention. Figure 12 shows a bottom view of the secondary slider after the large diameter disc is rotated with the turntable in accordance with an embodiment of the present invention. Figure π shows a bottom view of the secondary slider after the small diameter disc is coupled to the turntable in accordance with an embodiment of the present invention. 14 is a flow chart of a method of controlling an optical disk device in accordance with an embodiment of the present invention. Figure 5 is a plan view showing a protection unit of an optical disk device according to an embodiment of the present invention, in which a large-diameter disk is manually inserted into the optical disk device. Fig. 16 shows a plane circle of an optical disk apparatus according to an embodiment of the present invention, in which a large-diameter disk is manually inserted at a position where the driving unit is turned on. Figure 7 shows an enlargement of the portion of Figure 6 according to an embodiment of the present invention. 23590pif

Figure: is an enlarged view of the (4) of the optical disc device according to the embodiment of the present invention for absorbing the loading direction of the disc. [Main component symbol description] 丨〇: Slot 20: Front cover 30: Button 40: Display lamp 50: Decoupling bar 60: Decoupling rod hole 100: Main unit 110: Turntable 120: Spindle motor 130: Optical reading Unit 200: rod member 210: guide rod 211 • first auxiliary link 212: second auxiliary link 213: first auxiliary link hinge 214. second auxiliary link hinge 215 • first guide bar hinge 216: second Guide rod hinge 218: guide rod spring 219: disc guide surface 23590pif 23590pif1344135 220: first round convex shell 230: eject lever 235, 255: disc contact portion 250: loading rod 25]: first loading rod 252: Two loading lever 253: first loading lever hinge 254: second loading lever hinge 256: loading cam round convex housing 260: second convex convex housing 300: driving source 301: worm gear 305: transmission mechanism 350: main slider 351, 377 : Connecting rod cam 355 : rack 361 : first loading cam 362 : second loading cam 370 : sub slider 371 : first guiding rod separator 372 : second guiding rod separator 374 : guiding rod adjusting portion 375 : First eject lever separator 376: second eject lever separator 34 1344135 23590pi f

378 : Cam 379 : Coupling / decoupling guide 380 : Guide rod adjustment link 381 : Round convex housing 390 : Connecting rod 391 : Connecting rod round convex housing 400 : Locking unit 411 : First cam 412 : First comparison chain 415 : First locking portion 416 : First loading portion 420 : Second link 421 : Second cam 422 : Second hinge 425 : Second locking portion 426 : : Second loading portion 440 : : Closer 450 : : Guide lever switch 460 : : Drive switch 500 : : Frame 600 to 670 : Step 710 : : Eject lever spring 720 : : Absorption spring 730 : : Eject lever detection switch 35 1344135 23590pif 740 : Squeeze partial occlusion slot 750 : Squeeze part DL : Large diameter disc DS : Small diameter disc △ L : Distance

36

Claims (1)

1344135 23590pifl Correction date: 99 is the No. 106065 Chinese patent range without scribe correction. Christine-Zhengmu X. Patent application scope: L A disc device, including: light; 元元 should be rotated when the moon is joined to the turntable The turntable includes a buckle, and writes data to the disc and guides the surface of the disc; and the position of the center is aligned with the center of the turntable. Upper, the disc to unload the disc; and, '. The disc drive member member's '-:,==== racks' when the direct-acting 'reverse' ======================================================================== The ::::H applies an elastic force to the disc in the unloading direction of the disc; the disc guiding surface, advances the disc along the loading direction of the disc and the direction of the household to load the disc The slice is moved by ^1, &gt;} to move the disc relative to the preset direction. Leading the first disc device of the second solid item, wherein the row is in the loading of the crucible == the guiding rod is moved, "substantially flat 4. as described in claim 2 of the patent scope" Device, further package 37 23590pifl ' Revision date: October 25, 1999, the guide rod is used, when the guide rod and the cup are locked to the backup guide rod and the load rod is opened and pushed' The locking unit is configured to lock the handle according to the fourth embodiment of the present invention, wherein the convex shell is connected to a first-circle rotation formed on the bow guide; And "hunting" is rotated by the movement of the first cam about the first hinge projection to the second circle formed on the | - the movement of the second cam around the second hinge, the first t-belt, the radiance of the fifth aspect of the patent scope, wherein the end of the cup is opposite to the formation of the The end of the cam, the second:=: the second end of the connecting rod, the end portion is opposite to the optical disc device of the sixth aspect of the invention, wherein: the first connection The rod includes a first locking portion at the deformed portion. The second link includes a second portion at the deformed portion and the latching portion is defined by the first round convex shell The upper bucket and the second locking portion lock the loading bar by constraining the first jaw projection thereto. 8. For the optical disc device mentioned in the scope of patent application No. 7, in which the borrowing of 38 1344135 23590pin is the No. % 丨〇6〇65 Chinese patent scope without a slash correction this revision date: &quot;year 25 months Manually inserting into the disc of the optical disc device, when the first and second rods are rotated in opposite directions, the degree of the first and second locking portions can be reduced, so that the guiding rod and The optical disk device of claim 7, wherein: the first link comprises a first loading portion; the second link comprises a second loading portion; - when the large-diameter disc is not loaded, the first and second round convex knives lead the second 苐 - and the second loading portion to move, and, when the tens. a circular convex casing locked in the second precision, and the second circular convex casing is mainly slid along the second loading portion, the optical disk device according to item 1, wherein the piece; t loading a cam, actuating the Loading the rod to move the large diameter disc cam, actuating the thin to move the small diameter discThe disc device according to item 10 of the scope of the present invention, wherein the disc is selected according to the slot of the -itTb disc device - and the second pack is provided. The disc device can be modified by the amount of movement of the loading lever, wherein the loading lever includes a cam 11 that is loaded with the diameter of the first manually inserted disc. 'W and the second shop cam - the combination of the 39 39590pifl is the first % 丨〇 6 〇 65 Chinese patent range without a line correction this amendment date: &quot; October 25th 13' such as Shenqing patent scope The optical disc device of claim 10, wherein the first and second loading cams move the loading lever away from the disc after the disc is lightly coupled to the dial. The optical disc device of claim 1, wherein the driving unit further includes a sub-slider that reciprocates along with the main slider, wherein the wj α actuator moves in a reciprocating motion, the vice The slider includes a guide rod divider that moves the guide rod away from the disc after the disc is coupled with the dial, and an eject lever separator that moves after the disc is coupled with the dial The eject lever is away from the disc. 15. The optical disc device of claim 14, wherein the guide rod separator comprises a first and a second guide rod separator, and wherein the diameter of the disc is far from the disc The guide rod is moved to a different position f, and the eject lever split lung includes a first and a second eject lever separation benefit, and the eject lever is moved according to the diameter of the disc to be away from the disc. 16. The optical disc device according to claim 15, wherein the diameter of the disc is manually inserted into the slot of the optical disc device, and one of the first guide rod separators is selected as a borrowing The guide rod is moved by the guide rod movement amount to move away from the disc. 17. The optical disc device according to claim 15 of the patent application, wherein the diameter of the disc manually inserted into the slot of the light county, and the separation of the second and the second ejecting rod are selected by The amount of bomb is measured to move the eject lever away from the disc. 18. The optical disc device according to claim 14 of the patent application, wherein the sub-slider further includes a guide rod adjustment portion, and the material is loaded with a small rear disc 1344135 23590pifl. Correction date: 99 years, 1 month, 25 曰For the 96th Chinese Patent No. 65, there is no scribe line to correct the movement of the guide rod to advance the sub-disc device relative to the small-diameter disc, wherein the 栝 coupling/decoupling guide, when the main unit 楛The main unit is lightly engaged and moved downwards to guide the g± when the disc is retracted, and includes a guide rod adjustment link when loading the large diameter disc to move relative to the side of the large diameter disc. The guide cymbal is coupled to the turntable by the large-diameter disc: the guide rod adjusting link is rotated by the sub-slider to release the optical disc device according to claim 14. And further comprising a connecting rod 'connecting the main slider and the optical disc device according to claim 21, wherein the step of moving comprises: actuating the connection The connecting rod cam of the rod. The optical disc device of claim 1, wherein the loading rod includes a one end connected to the main slider and capable of rotating around the rhyme; and a two loading rod capable of pivoting around the second loading rod Rotating, the second portion includes a pivotal connection - the end of the loading lever and the other end that is in contact with the edge of the disc inserted into the optical disc device. 1344135 23590pifl Amendment date: 99 years, 25 months, 961, 6 〇 65, Chinese patent range, no scribe correction. 24. The optical disc device according to claim 1, further comprising a shutter The slot of the optical disc device is closed after the sheet is loaded in the optical disc device. 25. The optical disc device of claim 24, wherein the shutter is actuated by the main slider. 26. The optical disk device of claim 2, wherein the guide bar and the loading bar are resiliently biased toward the disk. 27. The optical disc device of claim 2, further comprising a diameter detector </ RTI> detecting the diameter of the disc inserted through the slot of the optical disc device. The optical disc device of claim 27, wherein the diameter detector comprises a guide rod switch for detecting a large-diameter disc, and during the loading process of the disc, when the guide rod is卩· When the broadcast is performed by the guide, the disc is judged to be a large-diameter disc. 29. The optical disc device of claim 2, wherein: The drive unit includes a drive switch for turning on/off the drive unit, and when the disc is manually inserted into the preset position via the slot of the optical disc device, The drive unit starts when the disc is unloaded by the preset position shift==the drive unit and the disc is replaced by the optical disc device as described in claim 2, Where: 42 丄 044135 2359〇pifi Revision date: October 25, 1999 is the Chinese patent scope of No. 96106065. There is no scribe correction. When loading/unloading large diameter discs, the guide rod, the eject lever and The loading rod moves at the same time; and when the small diameter disc is loaded/unloaded, the eject lever and the loading rod move.卫立31. The optical disc device of claim 3, wherein the guiding rod and the loading rod are adjacent to the optical disc in the mode, and the lining is larger than the small piece. The device of the fourth aspect, wherein the thickness of the dish device is less than or equal to 12.7 mm. Included in the second (4), the four (4) device, the manual package inserts the disc to the drive unit (four) to start the operation of the member: negatively, the elastic absorption of the disc in the loading direction acts on the rod 34. For example, if the optical disc device described in claim 33 is applied, the wooden bullets are transferred to the order 7&quot; (4) when the (4) protection sheet is loaded. In the loading direction of the disc, it acts on the negative of the rod member. The optical disc device according to claim 34, the hair unit comprises an absorption spring, and the impurity is absorbed in the surface of the sheet. The load of the rod, the absorption spring is provided 36. The optical disc as described in claim 35 of the patent application, wherein the 43 1344135 23590pifl correction date: 99 years ι〇月25日为第%丨〇6〇65号 Chinese The scope of the patent is not slashed. The protection of the early element further includes: the pressing portion interlocking with the ejecting rod and compressing the absorption spring to elastically reduce the load applied to the ejecting rod for loading in the loading direction; a pop-up bar detecting switch interlocking with the eject lever to open/close the driving unit; and squeezing a portion of the shielding groove to prevent interference between the pressing portion and the ejecting switch. The optical disc device of claim 36, wherein: the movement is absorbed by the eject lever and the pressing portion even when the movement of the eject lever detecting switch is stopped Flexible compression. 38. The optical disc device of claim 37, wherein the absorption spring is an annular elastic body assembled to a rotation center of the ejecting rod, the annular spring comprising being fixed to the ejecting to contact The other end of the extruded portion.知知知和39·- A method of controlling the placement of a disc, the unit rotates the turntable when the turntable, and includes: optical reading: ============================================================== The main slider of the racking device f to the driving source includes the rod member; and a straight line, when the main slider actuates two L to measure the diameter of the disc, 44 1344135 23590pifl corrected date: U.S. Patent No. 96106065, the entire disclosure of which is incorporated herein by reference: a disc to the turntable; a number of stock; an edge exiting the lever member to allow execution of writing and reading of material data from the disc; and, reading and reading data from the disc data. 45