CN2569242Y

CN2569242Y - Computer capable of playing CD, MP3 when turn off

Info

Publication number: CN2569242Y
Application number: CN 02269069
Authority: CN
Inventors: 张福阁; 曹红
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-24
Filing date: 2002-08-24
Publication date: 2003-08-27
Anticipated expiration: 2012-08-24

Abstract

The utility model provides a computer capable of playing CD, MP3 when the computer is shut down. The utility model is characterized in that a bus in the computer is provided with a CDPLAY card which is composed of an audio converting circuit, an IDE interface, an audio input interface, etc; a computer power supply 3 is provided with an interface by which power supplies of +12V and +5V can be exported directly without turning on the switch of the computer, the interface of the power supply is connected with the power lines of a disc drive 1 and the CDPLAY card 2. When the computer is shut down, a special reset circuit is provided by the CDPLAY card, and the reset signal RESET of the disc drive is in high level via the IDE interface is in high level; signals from sound sources with a standard audio output interface can be received by the audio input interface and the audio converting circuit provided by the CDPLAY card, for example, a sound card on the computer, the disc drive on the computer, an MP3 player, a TV card, etc., and music can be played when the power of the computer is on or off. The utility model has the advantages of simple operation, small power consumption, and longer service life of the computer.

Description

But shutdown is the computing machine of play CD, MP3 also

Technical field

The utility model belongs to computing machine and makes the field, but is the also computing machine of play CD, MP3 of a kind of shutdown specifically.

Background technology

Usually computing machine under open state (computing machine turns on the power switch, CPU, mainboard work) could play CD, music such as MP3, enter operating system, starting behind the special-purpose software can also tuned television channel, therefore, if utilize computing machine play CD, MP3, TV etc., need whole computing machine all to start, troublesome poeration, power consumption are big like this, and the long-time like this computing machine of holding also can shorten its serviceable life.In addition, all designed preposition SPK OUT, a MIC IN2 interface in the computing machine of present most brands, but do not designed LINE IN interface, this makes troubles to computer function expansion and use.

Need possess following condition when utilizing music such as computing machine play CD, MP3:

1, disk drives (common has: CD-ROM, CD-RW, DVD, DVD-RW driver) power on (+12V ,+5V), RESET signal in its ide interface keeps high level.

2, sound card (commonly used has: be integrated in sound card on the mainboard and independent sound card) powers on, and the audio frequency output of disk drives adopts connecting line to be connected on the CD-IN interface of sound card.

3, audio amplifier powers on, and the output of sound card is connected to audio amplifier.

Have only when these three conditions all possess music such as ability play CD, MP3.Generally no matter computing machine leaves still closes, the output of sound card has been connected to audio amplifier, the CD audio frequency output of disk drives also has been connected on the CD-IN interface of sound card, audio amplifier has independent power lead, can directly power on, but disk drives and sound card are in power failure state during computer shutdown, the RESET signal is in low level, therefore, the condition that does not possess music such as play CD, MP3.Directly power for driver and sound card if adopt special power supply, so when sound card is integrated on the mainboard, need mainboard to design especially, make the sound card circuit charged separately, when using independent sound card, need sound card to design especially, increase audio conversion circuit, the both need increase manufacturing cost, and such design makes the versatility variation of mainboard and sound card, most critical be that this design makes still can't solve shutdown the time RESET signal of disk drives keep the problem of high level.Therefore, before the utility model is made, have only computing machine to be in power-up state at open state lower disc driver and sound card, the RESET signal is in high level, music such as ability play CD, MP3.

Summary of the invention

But the purpose of this utility model provides the also computing machine of play CD, MP3 of a kind of shutdown, and needn't change the design of the main integrated circuit board of present computer-internal, and easy for operation.

The purpose of this utility model is achieved by the following technical solution:

But a kind of shutdown is play CD also, the computing machine of MP3, comprise computer motherboard, disk drives, sound card, computer power supply, computing machine front interface SPK OUT, MIC IN, cabinet, audio amplifier, it is characterized in that: in computing machine, have one by audio conversion circuit, ide interface, audio input interface CDIN, LIN1, the CDPLAY card that LIN2 forms, have one directly not export+12V in the computer power supply by computer switch, the interface of+5V power supply, power interface is connected on the power lead of disk drives, the ide interface of CDPLAY card is connected with the ide interface of disk drives, the ide interface of CDPLAY card is connected with the ide interface of mainboard, the audio output signal CDOUT of disk drives is connected to audio conversion circuit by the CDIN interface on the CDPLAY card, audio frequency input CDIN on the sound card, audio output signal CDOUT also is connected to audio conversion circuit, the audio output signal that MP3 player or other have the source of sound of standard audio output interface is connected to audio conversion circuit by the audio input interface LIN2 on computing machine front interface and the CDPLAY card, and the output of audio conversion circuit is connected with audio amplifier.

One main control chip MCU is arranged on the described CDPLAY card, and power interface is connected to the CDPLAY card, and main control chip MCU is connected with communication interface on the disk drives, plays used function keyboard and is connected with main control chip MCU by the interface on the CDPLAY card.

Described computing machine front interface also has a preposition LINE IN standard source of sound input interface except that SPK OUT, MIC IN.

Described CDPLAY card is the built-in plug-in card of any one bus among PCI, ISA, AGP, the NCR.

Described CDPLAY card is box-like, can be installed in the cabinet or is arranged on outside the cabinet.

Described function keyboard comprises: F.F., rewind down, a last head, next, play, stop, cartridge drum, loop play, to first head, to last one first key, these keys are installed on computer cabinet or the CDPLAY cartridge panel.

The audio input interface LIN1 of described CDPLAY card is connected with TV card, also has a standby ide interface that is used for connecting other IDE equipment on the CDPLAY card.

Advantage of the present utility model and good effect are: adopt a CDPLAY built-in plug-in card add the simple change of computer power supply realized computing machine can play CD under the startup and shutdown state, the function of MP3, be easy to make, easy to use.The user need not drive computing machine for a long time and listen CD, MP3 music etc., and power consumption reduces greatly, has prolonged the serviceable life of computing machine.

Description of drawings

Fig. 1 is an electrical schematic diagram of the present utility model;

Fig. 2 is the front view of the utility model computer cabinet.

Embodiment

Referring to Fig. 1, Fig. 2, computer realization open and close machine of the present utility model can play CD key be built-in plug-in card CDPLAY card 2 and power interface 3-1, sound signal all had normal passage when the former had guaranteed computer booting and shutdown, and when computer shutdown, make disk drives 1 keep the RESET signal of high level, CDPLAY card and CD driver all had electricity when the latter had guaranteed computer shutdown, can operate as normal.

The utility model can receive and play following sound signal under computer booting, off-mode:

1, the sound signal of sound card (during start) in the computing machine.

2, the sound signal of disk drives (start shooting, all can shut down) on the computing machine.

3, the sound signal of MP3 player (start shooting, all can shut down).

4, the television audio signals of TV card (start shooting, all can shut down).

5, other have the sound source signal (start shooting, all can shut down) of standard audio output interface.

Specific implementation is as follows:

CDPLAY card 2 is the built-in plug-in cards of any one bus among PCI, ISA, AGP, the NCR.CDPLAY card 2 provides 3 IDE general-purpose interface IDE-1, IDE-2, IDE-3, one of them IDE-2 is connected by standard 40PIN or 80PIN (can support ATA66/100) with a ide interface on the computer motherboard 10, other 2 (these two interfaces adopt the reset signal through isolating, guarantee the RESET signal maintenance high level after any equipment of shutdown back meets CD-ROM, 2 equipment must one is main, another for from) IDE-1 connect disk drives 1, another IDE-3 connects common IDE equipment.

Behind computer shutdown, CDPLAY card 2 provides a special reset circuit, make the reset signal RESET of disk drives 1 be in high level by IDE general-purpose interface IDE-1, make disk drives 1 as long as acquisition+12V, 2 groups of power supplys of+5V just can operate as normal, from computer power supply 3, directly do not export+12V by computer switch, the interface 3-1 of+5V power supply is connected on the power lead of disk drives 1, disk drives 1 still has behind computer shutdown like this, play CD and MP3 function can realize shutting down, at this moment, if CDPLAY card 2 does not adopt main control chip MCU2-1, the Play Control of CD can only lean on the preposition button of CD-ROM itself to realize.

The audio output signal OUT of sound card 9 is connected on the CDPLAY card 2 as audio input signal source wherein by line, output to audio amplifier 5 through the audio output interface by CDPLAY card 2 after the audio conversion circuit 2-2 processing, obtain normal audio frequency output under the start condition.

A CDIN interface is provided on the CDPLAY card 2, make the output signal CDOUT of disk drives 1 be connected on the CDPLAY card 2, CDPLAY card 2 is by audio repeating circuit 2-2, under not start condition, the CDOUT signal is directly outputed to the audio output interface of CDPLAY card 2, realize replaying CD without need of opening terminal like this.Under the start condition, the audio repeating circuit 2-2 of CDPLAY card 2 can be input to CDOUT on the CD-IN interface of sound card 9, because the output of sound card 9 is connected to CDPLAY card 2, therefore, the output of CD-ROM outputs to audio amplifier 5 by the audio output interface of CDPLAY card 2, has guaranteed the normal play of CD-ROM under the start condition.Whether no matter start shooting, CD plays and other need the sound signal of sound card output all can output on the audio output interface of CDPLAY card, and is therefore, just passable as long as audio amplifier 5 is received the audio output interface of CDPLAY card.

Play CD will possess play button and cartridge drum/stop 2 buttons at least, and most of in the market disk drives all possess this 2 keys.More if desired keypress function, can on disk drives 1, add a communication interface (the most frequently used is the RS232 interface), increase by a main control chip MCU on the CDPLAY card 2, both communications, (for example button is play in the A0 representative to provide a command set by MCU, B1 represents next, C2 represents a last head, the FF representative stops, F0 represents cartridge drum etc.) pass to disk drives 1 by communication wire, on the CDPLAY card 2 more function keyboard 4 can be set like this, these buttons can be guided on the front panel of computer cabinet 11 by interface, make more convenient operation, these buttons generally include: F.F., rewind down, a last head, next, play, stop, cartridge drum, loop play, to first head, to last one first key, can select the part button as required.Described CDPLAY card 2 can be made into box-like, both can be installed in the cabinet 11, also can be arranged on outside the cabinet 11, and in the time of outside being arranged on cabinet 11, its function keyboard 4 can be installed on CDPLAY card 2 box panels.In order to make the operator can clearer understanding broadcast state information directly perceived, can increase by a LCD and be used to show current state.

In order to make computing machine can accept various sources of sound, the utility model has increased by a preposition LINE IN standard source of sound input interface 6-1 in computing machine front interface 6.The CDPLAY card also provides other 2 road audio frequency inputs (to call LINE1 and LINE2 in the following text), wherein one road LINE2 can meet the preposition LINE IN of computing machine standard source of sound input interface 6-1, this interface is the standard audio input interface, can connect the audio frequency output of SPK interface or other sources of sound of common MP3 player by audio cable, like this, the sound signal that MP3 signal or other have a source of sound of standard audio output interface just can be input to the audio conversion circuit 2-2 of CDPLAY card 2, audio output interface at CDPLAY card 2 obtains corresponding audio frequency output, hears corresponding music from audio amplifier 5; Another road LINE1 can connect the audio frequency output of TV card 8, and is same by the audio conversion circuit 2-2 that CDPLAY card 2 provides, and can obtain television audio signals on the audio output interface of CDPLAY card 2.

Claims

1, but a kind of shutdown is play CD also, the computing machine of MP3, comprise computer motherboard (10), disk drives (1), sound card (9), computer power supply (3), computing machine front interface (6), cabinet, audio amplifier (5), it is characterized in that: in computing machine, have one by audio conversion circuit (2-2), ide interface (2-3,2-4,2-5), audio input interface CDIN, LIN1, the CDPLAY card (2) that LIN2 forms, have one directly not export+12V in the computer power supply (3) by computer switch, the interface of+5V power supply (3-1), power interface (3-1) is connected on the power lead of disk drives (1), the ide interface (2-3) of CDPLAY card (2) is connected with the ide interface of disk drives (1), the ide interface (2-4) of CDPLAY card (2) is connected with the ide interface of mainboard (10), the audio output signal CDOUT of disk drives (1) is connected to audio conversion circuit (2-2) by the CDIN interface on the CDPLAY card (2), audio frequency input CDIN on the sound card (9), audio output signal CDOUT also is connected to audio conversion circuit (2-2), the audio output signal that MP3 player (7) or other have the source of sound of standard audio output interface is connected to audio conversion circuit (2-2) by the audio input interface LIN2 on computing machine front interface (6) and the CDPLAY card (2), and the output of audio conversion circuit (2-2) is connected with audio amplifier (5).

But 2, according to the described shutdown of the claim 1 also computing machine of play CD, MP3, it is characterized in that: a main control chip MCU (2-1) is arranged on the described CDPLAY card (2), power interface (3-1) is connected to CDPLAY card (2), main control chip MCU (2-1) is connected with communication interface (1-1) on the disk drives (1), plays used function keyboard (4) and is connected with main control chip MCU (2-1) by the interface on the CDPLAY card (2).

But 3, according to claim 1 or 2 described the shutdown also computing machine of play CD, MP3, it is characterized in that: described computing machine front interface (6) also has a preposition LINE IN standard source of sound input interface (6-1) except that SPK OUT, MIC IN.

But 4, according to the described shutdown of the claim 1 also computing machine of play CD, MP3, it is characterized in that: described CDPLAY card (2) is the built-in plug-in card of any one bus among PCI, ISA, AGP, the NCR.

But 5, according to the described shutdown of the claim 3 also computing machine of play CD, MP3, it is characterized in that: described CDPLAY card (2) is the built-in plug-in card of any one bus among PCI, ISA, AGP, the NCR.

But 6, according to the described shutdown of the claim 2 also computing machine of play CD, MP3, it is characterized in that: described CDPLAY card (2) is for box-like, can be installed in the cabinet or is arranged on outside the cabinet.

But 7, according to the described shutdown of the claim 3 also computing machine of play CD, MP3, it is characterized in that: described CDPLAY card (2) is for box-like, can be installed in the cabinet or is arranged on outside the cabinet.

But 8, according to claim 2 or 6 or 7 described the shutdown also computing machine of play CD, MP3, it is characterized in that: described function keyboard (4) comprising: F.F., rewind down, a last head, next, play, stop, cartridge drum, loop play, to first head, to last one first key, these keys are installed on computer cabinet or CDPLAY card (2) box panel.

But 9, according to claim 1 or 2 or 5 described the shutdown also computing machine of play CD, MP3, it is characterized in that: the audio input interface LIN1 of described CDPLAY card (2) is connected with TV card (8), and CDPLAY card (2) go up to also have a standby ide interface (2-5) that is used for connecting other IDE equipment.

But 10, according to the described shutdown of the claim 8 also computing machine of play CD, MP3, it is characterized in that: the audio input interface LIN1 of described CDPLAY card (2) is connected with TV card (8), and CDPLAY card (2) go up to also have a standby ide interface (2-5) that is used for connecting other IDE equipment.