CN2655581Y - Digital music player - Google Patents
Digital music player Download PDFInfo
- Publication number
- CN2655581Y CN2655581Y CN 03266914 CN03266914U CN2655581Y CN 2655581 Y CN2655581 Y CN 2655581Y CN 03266914 CN03266914 CN 03266914 CN 03266914 U CN03266914 U CN 03266914U CN 2655581 Y CN2655581 Y CN 2655581Y
- Authority
- CN
- China
- Prior art keywords
- rotating disk
- unit
- rotating
- reading
- housing
- 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
- Toys (AREA)
Abstract
Disclosed is a digital sound player. In order to proved a sound box device which avoid dust accumulating, has good durability and can emulate traditional operation action and amusement the utility model is proposed, wherein the playing structure is equipped with a circuit unit and a recorder reading and fetching unit, a control structure is equipped with a rotary disc unit, a drive unit and a signal reading and fetching unit, the rotary disc is equipped with a first rotary disc, a second rotary disc rotating with the fist rotary disc synchronously/non-synchronously and a combination plate, the drive unit rotary shaft, an electric magnet fixing seat and an electric magnet rotary seat a signal reading and fetching unit is equipped with a first bearing rack and a first shielding plate rotating with the first rotary disc synchronously, a first photoelectric block device which reads and fetches a second reading and fetching signal of the first shielding plate, a second shielding plate which rotate synchronously and is fixed on the end of the rotary shaft and a second photoelectric block device which reads and fetches the second reading and fetching signal of the second shielding plate, and the read and fetched first and second signals are transmitted to the circuit unit.
Description
Technical field
The utility model belongs to acoustics, particularly a kind of digital message player.
Background technology
Generally speaking, in order to produce exciting atmosphere in some specific occasion, the DJ personnel can promote to be located at vinyl record on the disc machine with hand.This each practice can be controlled the rotating speed and the rotation direction of disc, makes specific melody fragment be able to that friction speed is play even repeatedly, cooperates the variation of adjusting the large and small and high and low sound of volume again, can produce the effect that draws a crowd and build exciting atmosphere.Aforesaid effect is for some predetermined occasion, really reach good effect, only the DJ personnel use the process of vinyl record easily disc itself to be produced injury, and often needing to prepare a large amount of vinyl records simultaneously, to deal with performance required, and are not only bulky and carry also inconvenience.
Moreover at present music media on the market is mainly the CD disc, and not only volume is littler and weight is also lighter, therefore, if can probably can more alleviate DJ personnel's burden with CD as melody source and can carry out the variation identical for the DJ personnel as traditional role producing under the identical effect.So, be used for making the melody that plays out changeful for the DJ personnel according to the vinyl record practice with a kind of digital message player.
As shown in Figure 1, known digital message player 1 comprises the disc placement rack 11 that can place for the CD disc, the laser pickup 12 that reads the CD disc, electrically connects with laser pickup 12 and send the circuit unit 13 of digital signal, electrically connect with circuit unit 13 and in order to the control panel 14 of setting Play Control, driven and simulation disc record 15 and detecting simulation disc record 15 phase change that continue to rotate and the detector 16 that is sent to circuit unit 13 by drive unit 17 in order to handle by laser pickup 12.
Known digital message player 1 mainly is after CD is positioned over disc placement rack 11, reading CD with laser pickup 12 goes up data and is stored in the dynamic memory body of circuit unit 13, and CD melody data is shown on the control panel 14, and this moment, the DJ personnel can be in control panel 14 input Control Parameter, so that control is simulated the rotating speed of rotating disk 15 and is turned to, and detector 16 is when detecting the variation of simulation rotating disk 15 this moment, the signal of its phase change can be back in the systematic microprocessor of circuit unit 13, then read the music information that is stored in the dynamic memory body, after via the digital analogy converter of circuit unit 13 this data being changed into analog data, can music be broadcasted by low-frequency filter.
The simulation rotating disk 15 of known digital message player 1 has two kinds of forms textural.
As shown in Figure 2, the first morphological Simulation rotating disk 15 has dish body 151 and is attached at dish body 151 surface reflective pasters 152 on every side.Reflective paster 152 has the retroreflective regions 153 of several each intervals.
As shown in Figure 3, the second morphological Simulation rotating disk 15 ' has the reflective paster 154 ' that coils body 151 ', is covered on the cover plate 153 ' on dish body 151 ' surface and is located at cover plate 153 ' and coil between body 151 '.Cover plate 153 ' has several reflection perforation 155 ' that are centered around the edge.
As Fig. 1, Fig. 2, shown in Figure 3, with regard to first kind of morphological Simulation rotating disk 15, detector 16 is directly to send signal to reflective paster 152, and reception is judged phase change by the signal of its reflection.And second kind of morphological Simulation rotating disk 15 ' is to make detector 16 send detecting light to pass reflection perforation 155 ' on the cover plate 153 ', and by reflective paster 154 ' signal reflexed on the detector 16, judges phase change whereby.The simulation rotating disk 15,15 ' of aforesaid two kinds of forms all can reach the phase change of detecting, judge signal for detector 16, precisely because the textural excalation that still has:
1, the simulation rotating disk 15 of first kind of form is that after use after a while, reflective paster 152 comes off easily and causes on the durable degree unsatisfactory because reflective paster 152 is to be attached at dish body 151 surfaces in the mode of pasting.
2, the simulation rotating disk 15 ' of second kind of form ties up to the reflection perforation 155 ' that several pass through for detector 16 detecting light is set on the cover plate 153 '.And this kind structural design tends to make the easy cap product of dust in each reflection perforation 155 ', in case cap product has dust in each reflection perforation 155 ', certainly will cause reducing the effect of the reflective paster 154 ' of detector 16 detectings, the also difficult ideal designs that claims.
As shown in Figure 4, the another kind of device that can simulate operation with traditional vinyl record method equally appears in industry, be special ' the message regenerating unit ' of opening 2000-30372 number of Japan Patent bulletin, it mainly is the controlling organization 9 with another kind of form, it mainly is that the message of utilizing controlling organization 9 to cooperate other circuit elements to reach control output changes, and the configuration of relevant circuit element and arrangement are the technology of common general knowledge, also no longer being described herein more.
Controlling organization 9 roughly has rotating shaft 91, be fixedly arranged on rotating shaft 91 1 ends and expose to knob 92 on the panel 90, be fixedly arranged on rotating shaft 91 other ends signal rotating plate 93, be located at signal rotating plate 93 1 sides and toward the signal reflector 94 of signal rotating plate 93 emission detection signal and be mounted on the signal receiver 95 of signal reflector 94 opposition sides.
The individual groove 931 of wearing of radial loop columns on the signal rotating plate 93, the laser beam signal that signal reflector 94 is launched is by wearing groove 931 and being received by paired signal receiver 95.When the DJ personnel changed melody, promptly turning knob 92 made signal receiver 95 can receive the different signal forms that process changes to change by wearing the signal of groove 931.Whereby, music player can and turn to by the different signals that receive and with friction speed and play melody.
Though this kind message regenerating unit can avoid occurring responding to disappearance insensitive and the accumulation dirt, when only DJ plays personnel's playing back music, its enjoyment is not only in the variation of music itself, be that especially the DJ personnel touch the sense of touch of vinyl record itself and promotion vinyl record with hand and change its rotating speed and turn to and change on the different melodies, yet, aforesaid message regenerating unit also can't satisfy the demand of DJ personnel this respect, also difficult meaning ideal designs.
Summary of the invention
The purpose of this utility model provides a kind of digital message player that dirt, durability are good, can simulate traditional operation action and enjoyment of avoiding accumulating.
The utility model comprises the hollow form housing that forms assembling space, the control structure that is assembled in the play structure in the housing and electrically connects with play structure; Play structure has circuit unit and reaches the disc reading unit that electrically connects and can read disc with circuit unit; Control structure has can be relative to rotating the turntable unit that is installed in the housing top side, being located in the housing assembling space and driving the driver element that turntable unit rotates and be arranged at signal reading unit in the housing assembling space; Turntable unit has relatively first rotating disk near housing, be arranged at intervals at the first rotating disk top side and with first rotating disk synchronously/second rotating disk of asynchronous rotation and be arranged between first and second rotating disk and bonding pad that its both sides combine with first and second rotating disk respectively separatably; Driver element have pass housing and with the rotating shaft of turntable unit rotation synchronously, electromagnetism holder that retainer ring is around in rotating shaft and relatively rotation be located at the electromagnetism holder rotate outside and drive the electromagnetism rotating seat that turntable unit is rotated; The signal reading unit has first support bracket that is arranged at driver element bottom, with first anti-dazzling screen of first rotating disk rotation synchronously, be fixedly arranged on first support bracket upper end and read second shadow shield of the rotating shaft end that first photo interrupter of first reading signal of first shadow shield, rotation synchronously be fixedly arranged on and be located at the first support bracket lower end and read second photo interrupter of second shadow shield, second reading signal; First and second reading signal that reads is sent on the circuit unit.
Wherein:
Driver element have be arranged in the housing assembling space and with the affixed supporting seat of housing, be arranged at the supporting seat middle part centre mount, be sheathed on rotating shaft outer and with the revoling tube of turntable unit first rotating disk rotation synchronously, be arranged at the heat radiation copper sheathing between revoling tube and the centre mount and be connected the revoling tube top and the conjunction of turntable unit first rotating disk; Rotary axis is hubbed on the centre mount and with turntable unit second rotating disk and rotates synchronously; The electromagnetism holder is surrounded on the rotating shaft outside and affixed with centre mount.
Because the control structure that the utility model comprises the hollow form housing, is assembled in the play structure in the housing and electrically connects with play structure; Play structure has circuit unit and disc reading unit; Control structure has turntable unit, driver element and signal reading unit; Turntable unit have first rotating disk, and first rotating disk synchronously/second rotating disk of asynchronous rotation and be arranged at bonding pad between first and second rotating disk; Driver element has rotating shaft, electromagnetism holder and the electromagnetism rotating seat that rotates synchronously with turntable unit; The signal reading unit has establishes first support bracket, first anti-dazzling screen with the rotation synchronously of first rotating disk, first photo interrupter that reads first reading signal of first shadow shield, synchronous second photo interrupter that rotates second shadow shield of the rotating shaft end that is fixedly arranged on and read second shadow shield, second reading signal; First and second reading signal that reads is sent on the circuit unit.When the electromagnetism rotating seat drove first and second rotating disk of turntable unit and bonding pad and rotates synchronously, second rotating disk made first and second anti-dazzling screen rotate with identical speed with rotating shaft; And when the DJ personnel stop that with hand second rotating disk continues rotation, first rotating disk and first anti-dazzling screen still can be rotated further at a predetermined velocity, simultaneously, after changing rotating speed erratically or turn to because second rotating disk being applied in external force, also can be changed rotating speed synchronously with second anti-dazzling screen of the second rotating disk interlock and turn to, and then second reading signal that second photo interrupter be may be read into have out of phase, and this second reading signal is sent to the circuit unit of play structure; When DJ personnel Overexertion uses the rotating disk of winning also to slow down rotation, first photo interrupter promptly can be by reading first reading signal that obtains after first rotating disk slows down on first anti-dazzling screen, this first reading signal promptly can be transferred into circuit unit and increase the magnitude of current, be beneficial to second rotating disk and influenced down by external force, present original constant speed synchronously with first rotating disk and bonding pad at once and rotate; When being the utility model normal operation, first and second rotating disk of turntable unit and bonding pad are driven by driver element electromagnetism rotating seat and rotation synchronously, and at this moment, digital message player promptly presents as the form of playing traditional vinyl record; When first and second rotating disk of turntable unit is rotation synchronously, play structure promptly can be sent normal audio; Be subjected to the external force effect and work as second rotating disk, when for example the DJ personnel change its rotating speed or direction with hand, because first and second rotating disk and asynchronous rotation, second photo interrupter promptly can read second reading signal with out of phase data, and be sent to circuit unit, make play structure produce the audio of special variation; The utility model system with first and second anti-dazzling screen and first and second photo interrupter that is used for reading first and second anti-dazzling screen be installed in the assembling space of housing, can prevent that really dust, dirt from attaching; Borrowing control structure to provide the DJ personnel to carry out music with traditional operation technique changes, when digital message player playing back music and turntable unit is not subjected to external force to do the time spent, second rotating disk of turntable unit promptly can begin to rotate, rotary state during promptly as the traditional vinyl record of broadcast, then, the DJ personnel can directly force on second rotating disk, so as to the rotating speed that changes second anti-dazzling screen and turn to, at this moment, second photo interrupter just can read second anti-dazzling screen and obtain second reading signal of out of phase, and then plays out the music through changing; Really the better durability of tool, and can cooperate the DJ personnel and fully simulate the state of traditional operation vinyl record; Not only avoid accumulating dirt, durability is good, and can simulate traditional operation action and enjoyment, thereby reach the purpose of this utility model.
Description of drawings
Fig. 1, be known digital message player structural representation.
Fig. 2, be first kind of form rotating disk of known digital message player decomposition texture schematic isometric.
Fig. 3, be second kind of form rotating disk of known digital message player decomposition texture schematic isometric.
Fig. 4, be known message regenerating unit structural representation stereogram.
Fig. 5, be the utility model structural representation stereogram.
Fig. 6, be the utility model structural representation cutaway view.
Fig. 7, be the utility model turntable unit decomposition texture schematic isometric.
Fig. 8, be the utility model driver element and reading unit decomposition texture schematic isometric.
Embodiment
As Fig. 5, shown in Figure 6, the control structure 5 that the digital message player 2 of the utility model comprises hollow form housing 3, is assembled in the play structure 4 in the housing 3 and electrically connects with play structure 4.
As shown in Figure 6, housing 3 is roughly the solid rectangle box body, and it has and is formed at its inner assembling space 31.
As Fig. 6, shown in Figure 7, turntable unit 6 has relatively first rotating disk 61 near housing 3, be arranged at intervals at second rotating disk 62 of first rotating disk, 61 top sides and be arranged between first and second rotating disk 61,62 and bonding pad 63 that its both sides combine with first and second rotating disk 61,62 respectively separatably.
Circular lamellar body that first and second rotating disk 61,62 of turntable unit 6 and bonding pad 63 are coaxial setting and rotation synchronously.
First rotating disk 61 is made for aluminium, and 62 of second rotating disks are made sense of touch with the simulation vinyl record for plastic cement.
As Fig. 6, shown in Figure 8, driver element 7 has and is arranged in housing 3 assembling spaces 31 and the supporting seat 75 affixed with housing 3, be arranged at the centre mount 76 of supporting seat 75 middle parts, the rotating shaft 71 that is hubbed at centre mount 76 and rotates synchronously with turntable unit 6 second rotating disks 62, the revoling tube 77 that is sheathed on rotating shaft 71 outsides and rotates synchronously with turntable unit 6 first rotating disks 61, be arranged at the heat radiation copper sheathing 78 between revoling tube 77 and the centre mount 76, be surrounded on rotating shaft 71 outsides and the electromagnetism holder 72 affixed with centre mount 76, be located at electromagnetism holder 72 outsides and can drive electromagnetism rotating seat 73 that turntable unit 6 rotates and the conjunction 74 that is used for connecting revoling tube 77 tops and turntable unit 6 first rotating disks 61 relative to rotation.Heat radiation copper sheathing 78 is to be used for leading the heat that looses and produced when rotating shaft 71 relative revoling tubes 77 rotate relatively.
By mutual electromagnetic action, use electromagnetism rotating seat 73 electromagnetism holder 72 rotations relatively between electromagnetism holder 72 and the electromagnetism rotating seat 73.
The circuit unit 41 of play structure 4 is to be mounted on the top surface of driver element 7 supporting seats 75 flat parts 751.
The details principle that first and second photo interrupter 83,85 reads first and second anti-dazzling screen 82,84 is the category of known techniques, also is not the application's case emphasis, no longer now being described further more.
First and second reading signal that first and second photo interrupter 83,85 is read is sent to the circuit unit 41 of play structure 4.First reading signal provides circuit unit 41 controls to keep the rotating speed of electromagnetism rotating seat 73, and second reading signal then provides circuit unit 41 phase change, makes circuit unit 41 make play structure 4 play out the music that matches according to second reading signal.And be the known techniques field about first and second anti-dazzling screen 82,84 and first and second photo interrupter 83,85 principles of being used and detailed structure thereof, and the emphasis of the application's case improvement frequently, so repeat no more.
When electromagnetism rotating seat 73 drives first of turntable unit 6, two rotating disks 61,62 and bonding pad 63 when rotating synchronously, second rotating disk 62 makes first with rotating shaft 71, two anti-dazzling screens 82,84 with identical speed rotation, and when the DJ personnel stop that with hand second rotating disk 62 continues rotation, 82 of first rotating disk 61 and first shadings still can be rotated further at a predetermined velocity, simultaneously, after changing rotating speed erratically or turn to because second rotating disk 62 being applied in external force, also can be changed rotating speed synchronously with second anti-dazzling screen 84 of second rotating disk, 62 interlocks and turn to, and then make second photo interrupter 85 may be read into second reading signal, and this second reading signal is sent to the circuit unit 41 of play structure 4 with out of phase.
Moreover, when DJ personnel Overexertion uses the rotating disk 61 of winning also to slow down rotation, first photo interrupter 83 promptly can be by reading first reading signal that obtains after first rotating disk 61 slows down on first anti-dazzling screen 82, this first reading signal promptly can be transferred into circuit unit 41 and increase the magnitude of current, be beneficial to second rotating disk 62 and influenced down by external force, present original constant speed synchronously with first rotating disk 61 and bonding pad 63 at once and rotate.Can adjust the technology contents that size of current is provided as for aforementioned with circuit unit 41, be to belong to the known techniques field no longer to describe in detail now.
Therefore, when the utility model runs well, first and second rotating disk 61,62 of turntable unit 6 and bonding pad 63 are driven and rotation synchronously by driver element 7 electromagnetism rotating seats 73, and at this moment, digital message player 2 promptly presents as the form of playing traditional vinyl record.
When first and second rotating disk 61,62 of turntable unit 6 is rotation synchronously, play structure 4 promptly can be sent normal audio; Be subjected to the external force effect and work as second rotating disk 62, when for example the DJ personnel change its rotating speed or direction with hand, because first and second rotating disk 61,62 and asynchronous rotation, second photo interrupter 85 promptly can read second reading signal with out of phase data, and be sent to circuit unit 41, make play structure produce the audio of special variation.
As mentioned above, the utility model not only can carry out different melodies with the CD disc for the DJ personnel and change, and has following effect and advantage:
1, eliminate the doubt attach dust and dirt: the utility model system with first and second anti-dazzling screen 82,84 and first and second photo interrupter 83,85 that is used for reading first and second anti-dazzling screen 82,84 be installed in the assembling space 31 of housing 3, can prevent that really dust, dirt from attaching.
2, the operation enjoyment of the traditional vinyl record of simulation can be provided, have better simulate effect: the control structure 5 of the digital message player 2 of the utility model provides the DJ personnel to carry out the music variation with traditional operation technique, when digital message player 2 playing back music and turntable unit 6 is not subjected to external force to do the time spent, second rotating disk 62 of turntable unit 6 promptly can begin to rotate, rotary state during promptly as the traditional vinyl record of broadcast, then, the DJ personnel can directly force on second rotating disk 62, so as to the rotating speed that changes second anti-dazzling screen 84 and turn to, at this moment, second photo interrupter 85 just can read second anti-dazzling screen 84 and second reading signal of acquisition out of phase, and then plays out the music through changing.
In the explanation of above efficacy advantages, the utility model better durability of tool really as can be known, and can cooperate the DJ personnel and fully simulate the state of traditional operation vinyl record, can reach the purpose of this utility model really.
Claims (2)
1, a kind of digital message player is characterized in that it comprises the hollow form housing that forms assembling space, the control structure that is assembled in the play structure in the housing and electrically connects with play structure; Play structure has circuit unit and reaches the disc reading unit that electrically connects and can read disc with circuit unit; Control structure has can be relative to rotating the turntable unit that is installed in the housing top side, being located in the housing assembling space and driving the driver element that turntable unit rotates and be arranged at signal reading unit in the housing assembling space; Turntable unit has relatively first rotating disk near housing, be arranged at intervals at the first rotating disk top side and with first rotating disk synchronously/second rotating disk of asynchronous rotation and be arranged between first and second rotating disk and bonding pad that its both sides combine with first and second rotating disk respectively separatably; Driver element have pass housing and with the rotating shaft of turntable unit rotation synchronously, electromagnetism holder that retainer ring is around in rotating shaft and relatively rotation be located at the electromagnetism holder rotate outside and drive the electromagnetism rotating seat that turntable unit is rotated; The signal reading unit has first support bracket that is arranged at driver element bottom, with first anti-dazzling screen of first rotating disk rotation synchronously, be fixedly arranged on first support bracket upper end and read second shadow shield of the rotating shaft end that first photo interrupter of first reading signal of first shadow shield, rotation synchronously be fixedly arranged on and be located at the first support bracket lower end and read second photo interrupter of second shadow shield, second reading signal; First and second reading signal that reads is sent on the circuit unit.
2, digital message player according to claim 1, it is characterized in that described driver element have be arranged in the housing assembling space and with the affixed supporting seat of housing, be arranged at the supporting seat middle part centre mount, be sheathed on rotating shaft outer and with the revoling tube of turntable unit first rotating disk rotation synchronously, be arranged at the heat radiation copper sheathing between revoling tube and the centre mount and be connected the revoling tube top and the conjunction of turntable unit first rotating disk; Rotary axis is hubbed on the centre mount and with turntable unit second rotating disk and rotates synchronously; The electromagnetism holder is surrounded on the rotating shaft outside and affixed with centre mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266914 CN2655581Y (en) | 2003-07-08 | 2003-07-08 | Digital music player |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266914 CN2655581Y (en) | 2003-07-08 | 2003-07-08 | Digital music player |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2655581Y true CN2655581Y (en) | 2004-11-10 |
Family
ID=34329917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03266914 Expired - Fee Related CN2655581Y (en) | 2003-07-08 | 2003-07-08 | Digital music player |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2655581Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683690A (en) * | 2017-01-23 | 2017-05-17 | 深圳市佳音王科技股份有限公司 | Combined type phonograph |
| CN112185427A (en) * | 2020-10-10 | 2021-01-05 | 中央美术学院 | Bradyseism record player |
-
2003
- 2003-07-08 CN CN 03266914 patent/CN2655581Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683690A (en) * | 2017-01-23 | 2017-05-17 | 深圳市佳音王科技股份有限公司 | Combined type phonograph |
| CN112185427A (en) * | 2020-10-10 | 2021-01-05 | 中央美术学院 | Bradyseism record player |
| CN112185427B (en) * | 2020-10-10 | 2021-10-01 | 中央美术学院 | Bradyseism record player |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1260964C (en) | Outer to inner recording for pause function | |
| CN1132178C (en) | Structure for supporting light-sensor | |
| CN1076298A (en) | Architecture for multiple disk file assemblies on common base | |
| US5748575A (en) | Information processing apparatus having a multitasking function with one or more optical discs | |
| US5088083A (en) | Device for cleaning the laser lens of a compact disc player | |
| US7072249B2 (en) | Digital audio signal playback apparatus with scratch effect control device | |
| CN2655581Y (en) | Digital music player | |
| JP2003228955A (en) | Integrated optical disk label scanner system, and method of scanning optical disk graphic display and method of duplicating the graphic display | |
| CN1213433C (en) | Electronic device | |
| CN1301017A (en) | Compact disc drive | |
| EP1406258A3 (en) | Optical disk driving apparatus | |
| CN1558405A (en) | Light pickoff actuator and optical recording and/or reproducing apparatus using the actuator | |
| CN1243346C (en) | Device for regenerating discs and tapes carried on vehicle | |
| CN219457150U (en) | Record disc running mechanism of record disc machine | |
| JPH0481835B2 (en) | ||
| CN2821776Y (en) | Digital audio player | |
| CN1013418B (en) | Record disc replacing means for selective playing type sound reproducing | |
| JP3091591B2 (en) | Pickup feeder | |
| JP4073594B2 (en) | Disc player | |
| TWI220518B (en) | Micro-electromagnetic drive nodule | |
| JPS6334132Y2 (en) | ||
| CN1466142A (en) | Support tray buffer for multi-disc player | |
| CN2256142Y (en) | Low noise gramophone records for scanners | |
| TWM250290U (en) | Improved structure for digital audio player | |
| JP2002334450A (en) | Pickup transfer device of optical disk unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041110 Termination date: 20120708 |