CN100412981C - CD machine device - Google Patents

Abstract

The invention provides a CD device, which is connected with a personal computer and comprises: a multifunctional panel controller having a power-on detector; a bus switch; a microprocessor and a controller of digital video disk ROM; when the personal computer is shut down, the panel controller can detect the turn-off of the power supply of the personal computer through the microprocessor and control the bus switch to disconnect the standard interface between the personal computer and the digital video disc read-only memory controller, and the microprocessor can independently operate without an operating system of the personal computer and is used for controlling and executing the operation of the digital video disc read-only memory controller; when the power-on detector detects that the personal computer is started, the microprocessor controls the bus switch to connect with a standard interface between the personal computer and the digital video disc read-only memory controller, and executes control operation through the personal computer.

Description

CD player

This case is based on the Chinese invention patent application No. 03102369.X filed on February 11, 2003 as the basic application, claiming domestic priority.

technical field

The invention relates to a CD player device and its connection device, in particular to a CD player (CD), digital video player (DVD), FM radio (FM) and MP3 music CD player for a personal computer (PC). An integrated optical disc drive device and its connection device, wherein when the personal computer (PC) is turned off, each function of the optical disc drive device can be operated independently without the operating system (OS) of the computer, and when the personal computer (PC) is turned on , the CD player device can be controlled by a personal computer (PC) to perform the above functions.

Background technique

The optical disc drive (CD) used on the personal computer (PC) is a storage device that uses optical methods to read and write information. In fact, the optical disc drive is the most important new technology in the field of data storage after the magnetic disk. It combines high-density magnetic tape It has the advantages of huge storage capacity and fast random reading of the disk, high recording density, large storage capacity, non-contact reading and writing, easy replacement of discs, high data transfer rate, random reading and fast retrieval, There are many advantages such as long storage period of stored information and low storage cost per unit of information. This technology has been deeply applied to many aspects such as television, audio, image storage and data processing.

In recent years, the use of personal computers (PCs) has become very popular, and compact disk drives (CDs) play an extremely important role on personal computers. However, when the personal computer (PC) is turned off and not in use, the compact disc drive (CD) is also idle; and when the user wants to use other functions, corresponding equipment must be installed, for example, when watching digital video discs, it must be installed on the personal computer. Install digital video disc player (DVD) on it, the user wants to listen to FM radio station (FM), must use the radio in addition, the user wants to play the music song in the MP3 music CD player, must turn on personal computer and cooperate to use, very inconvenient.

Therefore, be necessary to design a kind of device, can utilize the personal computer (PC) that the user contacts most frequently as the basis, design a kind of even when not using this personal computer (PC), namely needn't go through the computer operating system (OS) ), you can have a CD player (CD) to play video discs (VCD), a digital video disc player (DVD) to play digital video discs, a FM radio (FM) to listen to FM music, and use an MP3 music CD player to play CD music and other functions The integrated optical disc drive device realizes the effects of saving space, increasing convenience and reducing costs.

At present, the optical disc player device and connecting device of known technology are owing to be subjected to the limitation of specification (as ATAPI for CD-ROMs), make the power connector of optical disc player, audio frequency connector and data connector (as IDE or SCSI) the CD-ROM drive The space on the back is full and there is no room for expansion. As shown in Figure 5, the connecting device of the known technology CD-ROM has a power supply (POWER) connector 41, audio frequency (AUDIO) connector 39 and IDE or SCSI connector 40, has no possibility of expansion, therefore, it is necessary to develop a The connection device has a bus for controlling output/input, which increases the expandability of the CD player.

Contents of the invention

The purpose of the present invention is to provide a CD player device, which integrates the functions of CD player (CD), digital video disc player (DVD), FM radio (FM) and MP3 music CD player, even when the personal computer is turned off. , the CD player device can independently operate the above-mentioned functions without being controlled by a computer operating system (OS).

Another object of the present invention is to provide a connection device for a CD player, the connection device is a control connector, the control connector integrates an audio connector and a Sony-Philips digital interface (SPDIF) connector, and reserves a control bus And the output/input bus interface increases the expandability of the CD player.

In order to achieve the above object, the present invention provides a CD player device, the device is connected to a personal computer through a data bus and a signal detection line, the device also includes: a multi-function panel controller; a bus switch; a microprocessor and a Digital video disc read-only memory controller; the panel controller has a power on detector; the above-mentioned power on detector is connected to the power supply of the above-mentioned personal computer through the above-mentioned signal detection line; the above-mentioned bus switch is connected to the above-mentioned digital video disc read-only memory controller and Connect with the computer standard interface through the above-mentioned data bus; a microprocessor is connected with the above-mentioned power on detector, the above-mentioned bus switch and the above-mentioned digital video disc ROM controller, and controls their operation; when the above-mentioned personal computer is shut down, the The above-mentioned power on detector of the panel controller detects that the power of the above-mentioned personal computer is closed, and controls the above-mentioned bus switch through the above-mentioned microprocessor to disconnect the standard interface between the above-mentioned personal computer and the above-mentioned DVD ROM controller, and the above-mentioned microprocessor The processor can operate independently without the operating system of the above-mentioned personal computer, and is used to control and execute the operation of the above-mentioned DVD ROM controller; when the above-mentioned power-on detector detects that the above-mentioned personal computer is turned on, the above-mentioned microprocessor controls the above-mentioned bus The switch connects the standard interface between the personal computer and the above-mentioned DVD ROM controller, and performs the control operation through the above-mentioned personal computer; the connecting device has a power connector, and the connecting device is made into the personal computer The connection plate connected to the above-mentioned digital video disc ROM controller has a power input port on one side of the connection plate, through which a power source independent of the power supply of the above-mentioned personal computer is input.

The above-mentioned standard interface is the ATAPI-IDE standard interface of the personal computer.

The above-mentioned optical disk drive device further includes display means for displaying the state of mode selection and adjustment control.

The connection device also has a CD player digital audio output connector and a Sony-Philips digital interface output connector, the connection device includes a control connector, and the control connector has a control bus and an output/input bus.

Description of drawings

Fig. 1 is a generalized structural block diagram of the system of a preferred embodiment of the present invention;

Fig. 2 is the circuit structure circuit diagram of the power on detector of the present invention;

FIG. 3 is a flow chart of the operation program of the optical disc drive device of the present invention;

Fig. 4 is a schematic diagram of a product appearance of a preferred embodiment of the present invention;

FIG. 5 is a structural schematic diagram of a connection device for an optical disc drive in the prior art;

Figure 6 is a schematic view of the appearance of a preferred embodiment of the present invention;

7A to 7C are structural schematic diagrams of the connection device of the present invention.

Detailed ways

As shown in Figure 1, the CD player device 1 that is used for personal computer (PC) integrates CD player (CD), digital video disc player (DVD), FM radio (FM) and MP3 music CD player (not shown) within the device. This CD player device 1 has a power on detector 11, is connected with the power supply 21 of personal computer (PC) by signal detection line; A microprocessor 12 is used for controlling a 40-pin bus switch 13 and a digital video disc read-only Memory (DVD-ROM) controller 14, this DVD-ROM controller 14 contains an ATAPI-IDE (personal computer application program interface-integrated circuit equipment) interface 141 and host computer in the above-mentioned personal computer 2 by this 40 pin bus switch 13 An ATAPI-IDE interface 221 of the board 22 is connected.

FIG. 2 is a circuit structure of the power-on detector 11 according to an embodiment of the present invention. Wherein the detector 11 circuit is connected with the power supply 21 of the above-mentioned personal computer (PC) 2, and is used to detect whether the operating voltage of the personal computer (PC) exists, and the main computer reset of the ATAPI-IDE interface of the above-mentioned personal computer (PC) 2 Whether the signal (HRST) exists, when any one of the two signals exists, it means that the personal computer (PC) 2 is turned on, and when neither of them exists, it means that the personal computer (PC) 2 is not boot. When the personal computer (PC) 2 detects that it has been turned on (ON) via the power-on detector 11, the power-on detector 11 sends a detection signal to the microprocessor 12 to control the above-mentioned 40-pin bus switch 13. Open (ON) and close (OFF).

FIG. 3 is a flow chart of the operation program of the optical disc drive device of the present invention. When being in step S1, CD player device 1 starts the operation of multi-function panel controller (VPC) 10; First, in step S2, initialize above-mentioned multi-function panel controller 10; In step S3, initialize above-mentioned multi-function panel controller 10 The PC power in the open detector 11, then perform step S4; , +12V, -5V, -12V and other DC voltages and the main computer reset signal (HRST) on the IDE bus to determine whether the personal computer (PC) is turned on (ON) or turned off (OFF), if the personal computer (PC ) is not turned on, that is, when the supply voltage or the above-mentioned HRST signal is not detected, the program will execute step S5. If the above-mentioned personal computer 2 is turned on (ON), that is, when the supply voltage or the HRST signal is detected, the program will be executed to Step S8: In step S5, the above-mentioned PC power-on detector 11 transmits a detector signal representing that the above-mentioned personal computer (PC) is not turned on to the microprocessor 12, so that the above-mentioned microprocessor 12 controls a 40-pin bus switch 13 cut off the connection of the IDE bus on the multi-function panel controller (VPC) 10 and the main board 22 of the personal computer; then, in step S6, the IDE bus will be controlled by the microprocessor 12 of the multi-function panel controller (VPC); In step S7, the above-mentioned PC power supply opening detector 11 will continue to detect whether the power supply of the above-mentioned personal computer 2 is open, if it is still not open, then return to perform step S6, continue to control the IDE bus by the microprocessor of the VPC, if open, then return Execution of step S3, in step S4, if it is detected that the personal computer 2 is turned on, the program will perform step S8; Detector signal is sent to microprocessor 12, makes this microprocessor 12 control one 40 pin bus switches 13 and multi-function panel controller (VPC) 10 is connected with the IDE bus of personal computer 2 main frame 22; Then, in step S9 Among them, the above-mentioned IDE bus will be controlled by the ATAPI-IDE interface 221 of the personal computer 2; then, in step S10, the PC power on detector 11 will continue to detect whether the power of the personal computer 2 is turned on, if it is turned on (ON), then Return to execute step S9, continue to control the IDE bus of the VPC by the ATAPI-IDE interface of the personal computer, if it is closed (OFF), then return to execute step S3 to continue the process.

Fig. 4 is a schematic diagram of a product appearance according to a preferred embodiment of the present invention. In the present invention, a digital video disc player (DVD), an MP3 music disc player, a compact disc player (CD) and a frequency modulation radio (FM) etc. are integrated and used on a personal computer (PC). When the personal computer is turned on, it can be used as a CD player. When the computer is turned off, it can be operated independently without the computer operating system. The control functions of all functions, modes, adjustments and selections are concentrated on the four-way selector on the left side of the panel and the shuttle on the right side. On the adjustment button, and display its use status information etc. through the liquid crystal display in the center of the panel, the CD player device 1 of the present invention is a thin cube with a depth greater than the width of the front, and a panel controller 10 is included on the front, the panel controller 10 There is a circular protruding four-way selector on the left side. Function options such as fast forward/play/rewind/stop are respectively located at 12 o’clock, 3 o’clock, 6 o’clock and 9 o’clock on the surface: the outer circumference of the four-way selector, Surrounded by four quadrangular function keys, about 2 o'clock, 4 o'clock, 8 o'clock and 10 o'clock, they are volume down (VOLUME-), mute (MUTE), distortion/restore (WOW/EQ) and volume up (VOLUME+) and other functions, the radially outer sides of these function keys are slightly lower and slightly inclined. On the right side of the panel, there is a circular double-protruding shuttle adjustment button, which is composed of a central button and a peripheral knob. The highest point of the central button is shaped into a circular surface, which is a mode selection button; the surface of the peripheral knob is at 12 o'clock, 3 There are semi-circular protruding edges at the positions of 1 o'clock, 6 o'clock and 9 o'clock, and the frequency and playback rate can be adjusted by rotating/reversing; there is a circular button on the upper right corner of the control panel. Exit and indent. A liquid crystal display is formed in the center of the panel. The upper and lower edges of the display panel are modified into a slightly convex slightly arc-shaped outward, and the left and right sides are modified into an inwardly concave arc-shaped outline. Status information corresponding to control modes such as selectors and jog shuttle adjustment buttons, such as frequency response selection, power output meter, tone selection, indication selection, etc.

As shown in FIG. 6, a connecting device of a multi-functional optical disc drive device is connected to the optical disc drive of a personal computer (PC). Wherein the optical disc player device has the functions of a compact disc player (CD), a digital video disc player (DVD), a FM radio (FM) and an MP3 music CD player, and is integrated in the device, and the connecting device has a power (POWER) connector 38. A CD player digital audio output connector 35 and a SHDIF output connector 36, the connection device has a control connector 37, the control connector 37 has a control bus and an output/input bus interface, and thereby increase the number of the optical disc Machine scalability.

As shown in Fig. 7A～Fig. 7C, the connection device of the present invention can be made into a connection plate connected with the optical disc drive on the host computer, and has a power supply (POWER) connector 38 on one side of the connection plate, and a digital drive of the optical disc drive. Audio output connector 35 and a SPDIF output connector 36, and a control connector 37, which has a control bus and an output/input bus (not shown); Has a backplane input 31 . Backplane output 32, FM antenna 33 and DC 12 volt input 34.

Claims (4)

1. A CD player device, the device is connected with a personal computer (2) through a data bus and a signal detection line, and the device also includes: A multifunctional panel controller (10); A bus switch (13); a microprocessor (12); a connecting device; and A DVD ROM controller (14); The panel controller (10) has a power on detector (11); The above-mentioned power on detector (11) is connected with the power supply (21) of the above-mentioned personal computer (2) through the above-mentioned signal detection line; the above-mentioned bus switch (13) is connected with the above-mentioned DVD ROM controller (14) and passes the Bus is connected with computer standard interface (221); A microprocessor (12) is connected with above-mentioned power on detector (11), above-mentioned bus switch (13) and above-mentioned DVD ROM controller (14), and controls their operation; When the above-mentioned personal computer (2) is turned off, the above-mentioned power on detector (11) of the panel controller (10) detects that the above-mentioned personal computer (2) is powered off, and controls the above-mentioned bus through the above-mentioned microprocessor (12) The switch (13) disconnects the standard interface between the above-mentioned personal computer (2) and the above-mentioned DVD ROM controller (14), and the above-mentioned microprocessor (12) can be independent without the operating system of the above-mentioned personal computer (2). Operation, for controlling and executing the operation of the above-mentioned DVD ROM controller (14); when the above-mentioned power on detector (11) detects that the above-mentioned personal computer (2) is turned on, the above-mentioned microprocessor (12) controls the above-mentioned bus The switch (13) connects the standard interface between the personal computer (2) and the above-mentioned DVD ROM controller (14), and performs the control operation through the above-mentioned personal computer (2); The connection device has a power connector (38), and the connection device is made into a connection plate connected with the above-mentioned digital video disc read-only memory controller (14) in the personal computer, and on one side of the connection plate there is A power input port (34), through which a power source independent of the above-mentioned personal computer power source is input. 2. The optical disc drive device according to claim 1, wherein the above-mentioned standard interface is an ATAPI-IDE standard interface of a personal computer (2). 3. The optical disc player device according to claim 1, wherein the optical disc player device further comprises a display device for displaying the status of mode selection and adjustment control. 4. CD player device as claimed in claim 1, it is characterized in that, this connection device also has a CD player digital audio output connector (35) and a Sony-Philips digital interface output connector (36), this connection device A dominant connector (37) is included having a control bus and an output/input bus.

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