CN2521701Y

CN2521701Y - Read-only optical driver pushing-button type speed changing apparatus

Info

Publication number: CN2521701Y
Application number: CN 01269661
Authority: CN
Inventors: 郑明贵
Original assignee: Behavior Technical Computer Corp
Current assignee: Behavior Technical Computer Corp
Priority date: 2000-12-01
Filing date: 2001-11-30
Publication date: 2002-11-20
Anticipated expiration: 2011-11-30

Abstract

A read-only CD driver key-press gear change mechanism comprises a read-only CD driver formed by a mechanism body and a faceplate, the face of the faceplate is provided with an indicator light, a disk salver, and a plurality of controlling key-presses, the play, pause, positive fast forwarding, and negative fast forwarding of the disk are controlled by the controlling key-presses, when two key-presses of the controlling key-presses are pressed at the same time, a controlling circuit is controlled to drive the disk driving motor to rotate in different rotate speed, which forms the read-only CD driver key-press gear change mechanism.

Description

Cd-ROM button speed change gear

Invention field

The utility model is about a kind of cd-ROM button speed change gear, be meant a kind of especially, design is with the control of the dvd playback on CD-ROM drive panel button, when the operator presses wherein two control buttons simultaneously, it is different rotating speeds that may command makes optical disk drive motor, the cd-ROM button speed change gear that is constituted.

Background technology

Cd-ROM is widely used in computing machine and home appliance, in order to reading the CD signal of CD and DVD, because of its memory data output greater than traditional magnetic tape type medium, and the volume of CD and DVD is little, is easy to collection, becomes the main product on the market soon.On the data read rates of cd-ROM, the cd-ROM of speed is got in early stage two times of speed, four times of fast readings, to full-fledged and commercial 40 times even now up to the CD player of 50 times of reading rates, and, up to DVD drive of 16 times of speed etc., just replace old-fashioned product with surprising renewal speed, especially on the consumption market that multimedia computer is in fashion now, the solemn standard that has become on personal computer, household PC four and the network workstation of two-forty cd-ROM is equipped with.

The accuracy of reading and writing data is the important pointer of CD-ROM drive quality, on production technology, though cd-ROM member specification, with motor and the first-class gordian technique of read-write breakthrough is arranged repeatedly, but cd-ROM is because of the too high vibrations that cause relatively of rotating speed, during with the discs of use inferior quality, eccentric gravity causes wild effects such as vibrations when high speed rotary motion, to influence reading of read/write head and cause read error maybe can't read, significantly reduced the stability of cd-ROM, in addition, it is sick that the noise that the optical disk high-speed rotation is caused etc. also is subjected to consumer's dirt, and all this is all the common puzzlement of two-forty CD-ROM drive, and fails so far effectively to solve.

Summary of the invention

In view of this a problem is still demanded urgently improving, the utility model provides a kind of read-only optical disc machine button speed change gear, is meant a kind ofly especially, and design comes motor-driven change cd-ROM motor rotary speed with simple and easy control mode, can significantly reduce vibrations and noise, make the more perfect practical person of cd-ROM.

In addition, fundamental purpose of the present utility model, provide a kind of cd-ROM with speed changing function, design speed Control button is on the CD-ROM drive panel, look actual needs, the operator can press this control button can control that to make optical disk drive motor be different rotating speeds, makes discs cooperate read/write head with different rotating speeds, reach and stablize accurate reading of data, and have creativity person.

Another purpose of the present utility model, provide a kind of cd-ROM button speed change gear, design changes disc rotation speed by the control button on the CD-ROM drive panel, and this control button is to utilize existing play button, and need not change panel appearance, the cd-ROM button speed change gear that is constituted.

Below cooperate icon, describe the member and the efficacy characteristics thereof of the utility model one specific embodiment in detail.

The accompanying drawing summary

Fig. 1 is for installing the CD-ROM drive synoptic diagram of the utility model button speed change gear;

Fig. 2 is the utility model control system calcspar;

Fig. 3 is the calcspar of the control circuit in the utility model;

Fig. 4 A is the circuit diagram of control circuit some among Fig. 3;

Fig. 4 B is another circuit diagram partly of control circuit among Fig. 3;

Embodiment describes in detail

See also shown in the accompanying drawing 1 of back, the utility model cd-ROM button speed change gear is arranged on the panel 11 of a cd-ROM 10, and being used for control, to make optical disk drive motor be different rotating speeds.

As shown in FIG., this cd-ROM 10 comprises being positioned at this panel 11 surfaces, be provided with pilot lamp 12, optical disc tray 13, with a plurality of control buttons 14; This pilot lamp 12 wherein, it is the BUSY cresset during as display power supply and data read, this optical disc tray 13, be to be used to take in discs, and can be admitted to body 11 inside, drive the discs rotation by CD-ROM drive motor, simultaneously by the read head reading of data, these a plurality of control buttons 14 are in order to the broadcast of control discs, time-out, the control of holding function such as commentaries on classics, contrary fast commentaries on classics just soon.

As Fig. 2, cd-ROM button speed change gear of the present utility model, basic control architecture comprises a control circuit 20, by by above-mentioned control button 14, can control optical disk drive motor 30 through this control circuit 20 and be different rotating speeds.

Please consult again shown in Fig. 3, Fig. 4 A and Fig. 4 B, be presented at calcspar and the detailed circuit diagram of control circuit Figure 20 shown in Figure 2 respectively, wherein, this control circuit 20 comprises an ide interface 21, data I/O processor 22, ROM (read-only memory) (ROM) 23, microprocessor 24 and random-access memory (ram) 25.Ide interface 21 is used for being linked to computer main frame panel (figure does not show), obtains the data read control command of cd-ROM 10.Data I/22 of O processors are the maincenter of data read and CD-ROM drive motor 30 controls in the cd-ROM 10, reception is from the control command of ide interface 21, and again pass in computer main frame panel through ide interface 21 data of cd-ROM 10 discs that reads, and above-mentioned two control buttons 14 are to be attached at this data I/O processor 22 wherein among two input pin A and the B, data I/O processor 22 can be received with respect to the fast or slow control command of CD-ROM drive motor 30 rotating speeds, and then the output speed of controlling and driving motor 30.

Above-mentioned ROM (read-only memory) 23, be to be used for storing data read, switch casket, to seek control programs such as rail, CD-ROM drive motor 30 rotating speeds as cd-ROM 10,23 of ROM (read-only memory) see through microprocessor 24 and come reading of control data and carry out this control program, microprocessor 24 also is subjected to the control action of data I/O processor 22, and last control program execution result is delivered data I/O processor 22 do relative hardware controls action.24 of random access memory provide the temporary usefulness of data in the circuit, are subjected to the control action of data I/O processor 22.

Shown in Fig. 4 A and Fig. 4 B, the numbering of each major control assembly in the above control circuit 20 is listed below respectively:

(1) ide interface 21 is the IDE circuit connector of a standard 40PIN;

(2) data I/O processor 22 is the integrated circuit chip (IC) of numbering MT1318AE;

(3) ROM (read-only memory) 23 is the integrated circuit chip of numbering W29C020;

(4) microprocessor 24 is the integrated circuit chip of numbering 80C32;

(5) random access memory 25 is the integrated circuit chip of numbering GLT48CL16;

Above listed each primary clustering numbering is not to be unique selection, only be for further illustrate control circuit 20 structures in the utility model for an embodiment of row, the identical or similar assembly of every function all can be replaced replacement.

In order to distinguish the control function of each control button 14, in design, can utilize wherein two buttons of these a plurality of control buttons 14, when the operator presses two control buttons 14 simultaneously, be the rotating speed control of 20 pairs of optical disk drive motors 30 of turn-on control circuit, make optical disk drive motor 30 reduce rotating speed, or answer is original rotating speed.

Above-mentioned rotating speed control also can design by multisegment mode reaches, for example, when pressing two control buttons 14 simultaneously each time, can make the rotating speed of optical disk drive motor 30 slow down 5% each time through this control circuit 20, behind continuous three reductions of speed, when pressing for the 4th time then CD-ROM drive motor 30 reply and be original rotating speed.

In practical application, the operator passes through by this device, can motor-driven change cd-ROM rotating speed, when CD-ROM drive reads the action generation wild effect of worker's dish data, the operator can press the control button, to reduce optical disk drive motor is that the mode of different rotating speeds cooperates read/write head, till stablizing accurate reading of data, reaches predetermined purpose.

In addition, cd-ROM button speed change gear of the present utility model, design changes disc rotation speed by the control button on the CD-ROM drive panel, and this control button is to utilize existing play button, and need not change panel appearance.

Therefore as can be known, button speed change gear of the present utility model is to utilize control button existing on the CD-ROM drive panel, in conjunction with rotating-speed control circuit, make cd-ROM have the function that changes disc rotation speed, can be that the mode of different rotating speeds cooperates read/write head by reducing optical disk drive motor, make CD-ROM drive reach the purpose that low vibrations, low noise and height are read the sheet ability.

Comprehensively above-mentioned, the utility model can reach with panel button control break optical disk drive motor speed, promote function and the purpose of reading the sheet ability to reduce vibrations, noise, and the utility model has described and has caused those skilled in the art that to implement according to this in detail.Yet above for embodiment only in order to explanation, the change of all equivalent structures and do not take off the similar modification of the utility model spirit such as all should be subordinate to category of the present utility model.

The figure number explanation:

10 CD-ROM drives, 11 panels

12 indicator lamps, 13 pallets

14 control buttons, 20 control circuits

21IDE interface 22 data I/O processor

23 read-only storages, 24 microprocessors

25 random access memory, 30 CD-ROM drive motor

A input pin B input pin

Claims

1. cd-ROM button speed change gear, system is arranged on the panel of a read-only optical disc machine, being used for control, to make optical disk drive motor be different rotating speeds, this cd-ROM comprises, be positioned at panel surface be provided with pilot lamp, optical disc tray, with at least two control buttons, in order to control holding functions such as discs broadcast, time-out, commentaries on classics just soon, contrary commentaries on classics soon, it is characterized in that:

Cd-ROM button speed change gear comprises control circuit, and by controlling buttons by pressing two simultaneously, can control optical disk drive motor through this control circuit is different rotating speeds, or answer is original rotating speed.