CN2582106Y - Replacing device for digital audio-visul CD player - Google Patents

Abstract

The utility model relates to a replacing device for a digital audio-visual CD player, which is provided with a replacing base inside, the replacing base is provided with a BIOS which can elastically improve the shortage of a used BIOS of a digital audio-visual CD player so as to fully conform the functions of external modules and the digital audio-visual CD player into integration. The utility model can cause a digital audio-visual CD player to provide the playing function of a general basic CD, besides, cause a digital audio-visual CD player to be used as a digital audio-visual functional input output unit of other external modules simultaneously. Moreover, the utility model can fully and effectively improve the efficiency of a general digital audio-visual CD player, reduce the total cost of multimedia requirement, and conform a plurality of functions into a digital audio-visual CD player.

Description

Digital image and sound optical disk player replacing device

(1) technical field

The relevant a kind of digital image and sound optical disk player of the utility model.

(2) background technology

The general digital image and sound optical disk player of tradition only has the function of DVD playing back, VCD and CD, if need other digital audio-video demands (for example: film scanning is play), the consumer just must have other independent machines, and such way allows the consumer must spend more expense.

With regard to known technology, though the novel patent of No. the 483566th, Taiwan patent announcement: image and sound optical disk player Card Reader I/O device improves with regard to the structure of digital image and sound optical disk player.A kind of fixed two switching that belong to of this patent constructs, be mainly switches light disk drive signal and card reader signal, and the processing power of coherent signal still is subject to the Basic Input or Output System (BIOS) (BIOS) of image and sound optical disk player itself, so that the effect of its expansion still belongs to is limited.

(3) utility model content

Thereby the purpose of this utility model mainly is to provide a kind of digital image and sound optical disk player replacing device with desirable expansion effect.

Digital image and sound optical disk player replacing device of the present utility model is characterized in comprising: a digital image and sound optical disk player has one can directly read, play the CPU (central processing unit) of video-audio data or access in its internal circuit; One substitutes pedestal, is to be located in the digital image and sound optical disk player, for the insertion of external module; One control module be by the Basic Input or Output System (BIOS) control of substituting in the pedestal in order to decision systems, or the Basic Input or Output System (BIOS) in the digital image and sound optical disk player is controlled; One CD drive is the basic external module of systemic presupposition, carries out dvd playback for the digital image and sound optical disk player.

The utility model adopts the integration structure of substituting pedestal and conventional digital image and sound optical disk player, and become digital image and sound optical disk player replacing device, therefore, this apparatus system can allow the digital image and sound optical disk player can DVD playing back except substantially, digital function that can also value added processing associated external assembly; Owing to adopted and substitute pedestal and control module, so the digital image and sound optical disk player has the function of plug, allows the function of digital image and sound optical disk player obtain the expansion and the lifting in a nearly step.

Understand the purpose of this utility model, characteristics and advantage for clearer, preferred embodiment of the present utility model is elaborated below in conjunction with accompanying drawing.

(4) description of drawings

Fig. 1 is the circuit block diagram of the utility model one preferred embodiment.

Fig. 2 is the control flow chart of the utility model one preferred embodiment.

(5) embodiment

Fig. 1 is the circuit block diagram of the digital image and sound optical disk player replacing device of the utility model one preferred embodiment.As shown in the drawing, the digital image and sound optical disk player replacing device of present embodiment can make the digital image and sound optical disk player be not only the playing function with general digital image and sound optical disk, because replacing device has been integrated general digital image and sound optical disk player and has been substituted pedestal 10, can allow the CPU (central processing unit) 30 of digital image and sound optical disk player inside, except the digital signal that can handle general CD drive 22, can also handle by substituting other digital signals that external module transmitted that pedestal 10 connects, allow CPU (central processing unit) 30 bring into play maximum effect.

As shown in the drawing in addition, the pedestal 10 of substituting of digital image and sound optical disk player replacing device is power supply 21, ide interface 24, CPU (central processing unit) 30 and audio/video (Audio/Video) output unit 34 that is linked to the digital image and sound optical disk player, and substituting pedestal 10 inner main composition unit has Basic Input or Output System (BIOS) (BIOS) 11, ide interface 12, control pin position 13, audio/video output unit 14 and audio/video input block 15.External module connects by substituting pedestal 10, the action that makes digital signal and digital image and sound optical disk player export and import, and control by control module 20.Digital image and sound optical disk player inside mainly by power supply 21, Basic Input or Output System (BIOS) 23, ide interface 24, CPU (central processing unit) 30 (inside mainly contains moving image encoding expert group standard (MPEG) processor and digital signal processor (DSP)), synchronous dynamic random access memory (SDRM) 31, can wipe programmable read only memory (EPROM) 32, digital to analog converter 33, audio/video (Audio/Video) output unit 34 and formed.CD drive 22 is the basic external module in the utility model among the figure, inserts when substituting pedestal 10 when CD drive 22, is the enforcement kenel of general digital image and sound optical disk player.

Fig. 2 is to be the control flow chart of the utility model one preferred embodiment.When system power supply was closed, the user can carry out the Plug Action of external module; Otherwise when system power supply was opened, the user can carry out the digital function of the external module in existing the connection.

Function mode of the present utility model is as shown in the drawing, system at first detects power supply status 201, judge whether power supply opens 202, if power supply does not have the time of unlatching, whether can select changeover module 203, then put into New Parent 205 if select the replacing New Parent then to remove assembly 204, can select whether to want power-on 206 this moment, if the words of power-on then can be selected executive module function 207 by control module, then start CPU (central processing unit) 208 so that carry out the work of treatment of digital signal.

Otherwise, when system at first detects power supply status 201, judge whether power supply opens 202, if power supply is opened, then can select executive module function 207 by control module, start CPU (central processing unit) 208 so that carry out the work of treatment of digital signal.

Technique effect of the present utility model or advantage mainly contain several aspects:

1. can increase the effect of general digital image and sound optical disk player, allow the digital image and sound optical disk player except playing digital image and sound optical disk (DVD), also can be by connecting external module (for example: photograph scanner, negative scanner, the assembly etc. of making video recording), to handle the correlated digital function.

2. can save relevant expense, the user utilizes digital image and sound optical disk player replacing device, can be behind the digital image and sound optical disk player of buying this kenel, and elasticity is purchased the external module of required function, need not to purchase independent machine at each function.

3. can save the space, because this replacing device can elasticity plug assembly, the user can obtain satisfying on the multiple function in littler space.

As for aforementioned person only is to be convenient to the preferred embodiment that illustrates that technology contents of the present utility model is used, but not absoluteness restriction of the present utility model, all any transformation and changes of having done according to spirit of the present utility model all should be contained in the scope of the present utility model.

Claims (5)

1. digital image and sound optical disk player replacing device is characterized in that comprising:

One digital image and sound optical disk player has one can directly read, play the CPU (central processing unit) of video-audio data or access in its internal circuit;

One substitutes pedestal, is to be located in the digital image and sound optical disk player, for the insertion of external module;

One control module be by the Basic Input or Output System (BIOS) control of substituting in the pedestal in order to decision systems, or the Basic Input or Output System (BIOS) in the digital image and sound optical disk player is controlled;

One CD drive is the basic external module of systemic presupposition, carries out dvd playback for the digital image and sound optical disk player.

2. CPU (central processing unit) as claimed in claim 1 is characterized in that, but comprises the processor of moving image encoding expert group specification handles device, digital signal processor and other accesses processing video-audio data.

3. digital image and sound optical disk player as claimed in claim 1 is characterized in that, comprising:

One power supply is for the electric power of each related elements work;

One can wipe programmable read only memory, is to be connected in CPU (central processing unit), opens the beginning program with access;

One synchronous dynamic storage is to be connected in CPU (central processing unit), with accessing image or voice data;

One Basic Input or Output System (BIOS), the Basic Input or Output System (BIOS) wafer of digital image and sound optical disk player;

One ide interface connects the ide interface and the CPU (central processing unit) of substituting in the pedestal, carries out the exchange of signal for external module and CPU (central processing unit);

One digital to analog converter is to become simulating signal in order to conversion digital signal;

One audio/video output unit.

4. the pedestal of substituting as claimed in claim 1 is characterized in that its inside comprises:

One Basic Input or Output System (BIOS) is a BIOS chip of substituting pedestal, in order to handle the calculation function that BIOS chip did not have of digital image and sound optical disk player;

One ide interface is ide interface and the external module that connects in the digital image and sound optical disk player, carries out the exchange of signal for external module and CPU (central processing unit);

One control pin position is control, demonstration and relevant I/O function;

One audio/video output unit is the signal after output is handled via CPU (central processing unit) and digital to analog converter;

One audio/video input block is to receive simulating signal by external module, directly connects the audio/video output unit of digital image and sound optical disk player, to export relevant video-audio signal.

5. external module as claimed in claim 1, it is characterized in that this external module can be the wherein a kind of of read-only optical disc, read-write CD drive, digital image and sound optical disk, read-write digital image and sound optical disk, hard disk, floppy disk scanner, MP3, Video Recorder assembly, radio-tape recorder assembly, recording pen, VCD-ROM, CF Card and MO CD drive and other multimedia associated components.

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