KR0184034B1 - Apparatus and method for reinforcing sound of a portable computer - Google Patents

Abstract

The sound reinforcement apparatus of the portable computer and its method include a keyboard for inputting data or control commands, a central processing unit for executing a control operation in accordance with a control program by data or control commands inputted from the keyboard, and the central processing unit. In a portable computer including a flat panel display for outputting the data according to a control operation, a memory in which a control program or control data is stored, and a sound card I for processing and outputting the input voice data, the input voice data is processed and And an audio docking system having a built-in sound card II and capable of being connected to the portable computer, wherein the CPU determines whether the audio docking system is installed, and when the audio docking system is mounted in the portable computer, Voice data is processed via sound card II Since the sound card II is enabled and the sound card I is deactivated so that the sound card II can be activated, the effect of improving the sound function of the portable computer is produced without any difficulty.

Description

Sound reinforcement device of portable computer and its method

1 is a block diagram of the connection between the sound card and peripherals supported by a typical desk computer,

2 is a portable computer system with a conventional sound function,

3 is a block diagram of a mono sound card of a conventional portable computer,

4 is a block diagram and peripherals of a sound card of a portable computer according to an embodiment of the present invention,

5 is a block diagram of a portable computer and an audio docking system according to an embodiment of the present invention,

6 is a connection diagram of a portable computer and an audio docking system according to an embodiment of the present invention,

7 is a selection circuit diagram of an audio docking system according to an embodiment of the present invention,

8 is an operation flowchart of the sound reinforcement device of the portable computer according to the embodiment of the present invention,

9 is a connection diagram of the connector and the sound circuit unit II according to the embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

300: CD-audio-in terminal 310: sound circuit section II

320: line-in 330: line-out

340: MIDI 350: joystick port

360: volume 370: headphone

380 amplifier 390 speaker

400: microphone 510: OR gate

520: buffer gate 600: selector

The present invention relates to a sound reinforcement device and a method of a portable computer. More specifically, in a multi-media potable computer supporting a sound function, an additional sound circuit unit is additionally installed on the outside to provide a desired function. The present invention relates to a sound reinforcement device of a portable computer and a method for selectively using a sound circuit unit mounted inside a portable computer or a separate sound circuit unit.

Recently, users are using portable computers that can be used anywhere as easily as desk computers.

However, portable computers are used for document writing and the like, but functions are limited due to volume limitations in terms of using graphics and sound.

This invention also relates to this problem, and is intended to receive more various sound support.

Hereinafter, a sound card of a conventional portable computer will be described with reference to the accompanying drawings.

1 is a block diagram of a connection between a sound card and a peripheral supported by a typical desk computer.

As shown in FIG. 1, the structure of a sound card and peripheral devices supported by a general desk computer is controlled by a central processing unit by connecting a control terminal, a data terminal, and an address terminal of the desk computer to a bus line. A sound circuit unit 200 for converting the voice data input by the central processing unit into a usable state and processing the amplifier, an amplifier 28 for amplifying the reproduced voice data, and a volume for adjusting the size of the electric voice data 260, a MIDI 210 for controlling an electronic instrument, a speaker 290 connected to an output terminal of the amplifier 280 to output sound waves, and a signal of voice data connected to an output terminal of the volume 260. A headphone jack 270 for outputting sound waves, a joystick port 250 for connecting computer game packs, a microphone 250 for converting external sound waves into electrical voice data, and a sound circuit A line-out 230 terminal for connecting the unit 200 to another card, an amplifier 280 or a speaker 290, and a line-in connecting the sound circuit unit 200 and the microphone 250, etc. And a CD-ROM 190, which is an optical disk of a read-only memory (ROM) by recording code information on a terminal and a thin disc-shaped storage medium.

The sound circuit unit 200 receives sound sources supported by the CD-ROM 190 or the MIDI 210 from the sound circuit unit 200 and outputs voice data.

The sound circuit unit 200 converts the voice data in the digital state into an analog signal of a corresponding magnitude in a D / A converter (not shown) and outputs the voice data in the analog state.

As a result, the voice data is input to the amplifier 280 past the volume 260 for adjusting the strength of the electrical signal.

The voice data output from the sound circuit unit 200 may be directly heard using the headphone jack 270, but the signal may not be heard through the speaker 290.

Therefore, the amplifier 280 amplifies the weak voice signal and outputs it through the speaker 290.

The microphone 250 directly inputs external voice data into the sound circuit unit 200, and the voice data is output to each corresponding device through the above operation.

Voice data is also input or output through the line-in 220 or the line-out 230.

The above is a description of the type of sound support in a desk computer commonly used by a user.

The following describes sound functions supported by commonly used portable computers.

2 illustrates a portable computer system with a conventional sound function. As shown in FIG. 2, the portable computer includes a keyboard 50 for inputting new data or control commands from the outside, and a central processing unit for arithmetic processing of data or other control values input from the keyboard 50; CPU, 10), a flat panel display 40 which displays a user's execution process currently being processed by a computer, and converts voice data in an analog state into voice data in a digital state and synthesizes it with other voice data. The sound card 60, which outputs the sound to the speaker, or outputs it back to the speaker, and loads and executes system software and user software, or performs a program and hardware and software interface that is initialized and self-tested when the computer is powered on. A memory 20 in which a program is stored, and an auxiliary storage device 30 for replenishing insufficient capacity of the memory 20. .

FIG. 3 shows a detailed block diagram of the sound card 60 shown in FIG.

As shown in FIG. 3, the sound card 60 is connected to a bus line of control, data, and address of the portable computer, and reproduces the sound data processed by the CPU 10 again. An amplifier 80 for amplifying the reproduced voice data, a speaker 90 connected to an output terminal of the amplifier 80 to output sound waves, and an output sound wave connected to an output terminal of the sound circuit unit 61 The headphone jack 70, an external microphone 110 connected to the outside and converting sound waves into electrical voice data, and an internal microphone 100 for converting sound waves mounted and input into the electric voice data, are provided. Is done.

The CPU 10 transmits the voice data stored in the auxiliary storage device 30 to the memory 20 so that the voice can be transmitted by the user's request by the keyboard 50 or the internal / external microphones 100 and 110 or according to a predetermined rule of the program. Compute the data.

In addition, the CPU 10 selects and enables the sound card 60 through the bus and outputs the processed voice data to the sound card 60.

The sound card 60 converts digital data into an analog state through the sound circuit unit 61 therein, and processes sound waves input through the internal / external microphones 100 and 110 and outputs them as voice data.

The output audio data is output to the outside through the headphone jack 70, or is output to the amplifier 80.

The amplifier 80 receives the electrical voice data of the weak signal, amplifies the signal, and outputs the amplified voice data to the speaker 90.

However, this conventional technology is difficult to support all the functions supported by the desk type computer due to the space, price, and practical implementation difficulties of the portable computer, and it is economically difficult to develop new one by one. Many problems also arise in reinforcement.

Accordingly, an object of the present invention is to solve the above-mentioned conventional problems, and is a portable computer for connecting an audio docking system capable of supporting a sound function by using an external slot of the portable computer without being limited by the space of the portable computer. It is to provide a sound reinforcement device and a method thereof.

The configuration of the present invention for achieving the above object is an input device for inputting data or control commands, a central processing unit for executing a control operation in accordance with a control program by data or control commands input from the input device; In a portable computer including a display device for outputting the data according to the control operation of the central processing unit, a memory in which control program or control data is stored, and a first sound controller for processing and outputting the input voice data. And an audio docking system in which a second sound controller for processing and outputting voice data is embedded and connectable to the portable computer, wherein the central processing unit determines whether the audio docking system is installed, and the audio docking system is portable. When attached to a computer, the second sound controller So that data can be processed and the second sound controller is enabled and the first sound controller is made to be D jeobeul.

Another aspect of the present invention for achieving the above object is an audio docking system in a sound reinforcing method of a portable computer applied to a portable computer with a first sound controller and an audio docking system with a second sound controller. Determining whether it is mounted; If it is determined that the audio docking system is mounted, outputting a control signal capable of degrading the first sound controller embedded in the portable computer; Initializing the portable computer; Initializing an operating state of a second sound controller in the audio docking system to an operable state; Initializing the portable computer when it is determined that the audio docking system is not mounted; And after initializing an operation state of the first sound controller, operating the first sound controller.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

4 is a block diagram and a peripheral device of a sound card of a portable computer according to an embodiment of the present invention, and FIG. 5 is a block diagram of a portable computer and an audio docking system according to an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention. According to the connection diagram of a portable computer and an audio docking system.

As shown in FIG. 4, a block diagram of a sound card of a portable computer according to an embodiment of the present invention and a structure of a peripheral device include a central processing by connecting a control terminal, a data terminal, and an address terminal of the portable computer to a bus line. A sound circuit section II 310 for converting and processing the voice data input by the device into a usable state, an amplifier 380 for amplifying the reproduced voice data, and a volume for adjusting the signal size of the electrical voice data And a speaker 390 connected to an output terminal of the amplifier 380 and a midi 340 which is a standard interface for controlling an electronic musical instrument, and outputting sound waves, and a sound wave connected to an output terminal of the volume 360. A headphone jack 370 for outputting, a joystick port 350 for connecting computer game packs, a microphone 400 for converting external sound waves into electrical voice data, and an electrical A line-out 330 for outputting audio data to the outside, a line-in 320 to which an external sound source is input, and a CD-ROM as an optical disc of a read-only memory by recording code information on a thin disc-shaped storage medium. CD (CD) -audio-in terminal 300 is connected to the.

Sound sources supported by the CD-audio-in terminal 300 or the MIDI 340 shown in FIG. 4 are input from the sound circuit unit II 310 and output as voice data.

At this time, the sound circuit unit II 310 converts the audio data in the digital state into data in the analog state by a built-in D / A converter (not shown).

The voice data output from the sound circuit unit II 310 is input to the amplifier 380 through the volume 360 for adjusting the strength of the electrical signal or to the headphone jack 370.

The amplifier 380 amplifies the weak voice signal and outputs the same to the speaker 390.

Voice data may be directly input from the outside to the sound circuit unit II 310 using the microphone 400, and the voice data input through the microphone 400 is output through the same process as described above.

Voice data is also input or output through the line-in 22 or the line-out 230.

As shown in FIG. 6, the structure according to the embodiment of the present invention consists of a portable computer A1 and an audio docking system A2.

As shown in FIG. 5, the portable computer A1 includes a keyboard 440 for inputting new data or control commands from the outside, and a central processing unit for arithmetic processing of data or other control signals input from the keyboard 440. (CPU, 410), a flat panel display 450 that displays a user's execution process currently being processed by a computer, and system software and user software that are loaded and executed or initialized and self-tested when the computer is powered on. The memory 420 stores a program and a program (bios) in charge of the interface between hardware and software, the auxiliary storage device 430 replenishing the storage capacity of the memory 420, and analog electric voice data in a digital state. Is composed of a sound card I 460 which is converted to other voice data and synthesized or output to the speaker 390 again.

As shown in FIG. 5, the audio docking system A2 converts analog electrical voice data into a digital state and synthesizes it with other voice data or outputs the sound card to the speaker 390 of the portable computer A1. II (470).

The CPU 410 transmits the voice data stored in the auxiliary storage device 430 to the memory 420 so that the voice data may be changed according to a user's request by the keyboard 440 or the microphone 400 or according to a predetermined rule of a program. Operation is processed.

The CPU 410 determines the presence or absence of the audio docking system A2. If the audio docking system A2 is not connected, the CPU 410 selects the sound card I 460 through the bus and enables the processed sound data. Output to I 460.

However, when the audio docking system A2 is connected, the CPU 410 deactivates the sound card I 460 via the bus and selects the sound card II 470 to output the processed voice data.

7 is a selection circuit diagram of an audio docking system according to an embodiment of the present invention.

As shown in FIG. 7, the structure of the selection circuit diagram of the audio docking system according to the embodiment of the present invention is the voice data inputted by the CPU 410 with a control line, a data line, or an address line connected to a bus line. Sound circuit unit I (500) for converting and processing the signal into an available state, OR gate (510) to which an address enable signal (AEN (Address Enable)) is input to one terminal of the connector of the portable computer A1; A buffer 520 to which an interrupt request signal IRQ (N (Interrupt Request)) output from the sound circuit unit I 500 is input, and a DMA recognition signal DACK # (DMA ACKnowledge) at a connector of the portable computer A1. Is inputted to the buffer 530, the buffer 540 for inputting the DMA request signal (DRQ (DMA Request)) output from the sound circuit unit I 500 and outputted to the output terminal, and the OR gate 510. Output ENABLE-AEN # signal to the other terminal of the Output ENABLE-IRQ # signal and outputting a DMA-ENABLE signal to the control terminal of the buffers (530 540) and comprises a selection unit (600) consisting of a magnetic core.

The portable computer A1 determines the presence of an audio docking system to enable the sound function, enables only the selected sound card, and disables other sound cards that are not selected so that there is no conflict with each other.

First, when the audio docking system A2 is not connected, the ENABLE-AEN # signal is output at a low level, so as to freely access the internal input / output port of the sound circuit unit I 500.

In addition, by outputting the signal of the control terminal of the buffer (520-540) to a low level LOW to enable the buffer (520-540).

Therefore, the interrupt circuit and the direct memory access (DMA) process can be executed in the portable computer A1 so that the sound circuit unit I 500 can operate.

In addition, when the audio docking system A2 is connected, the selector 600 is in a state of control signals ENABLE-AEN, ENABLE-IRQ, and ENABLE-DMA applied to the control terminals of the buffers 520-540. Output all to high level HIGH.

As a result, the sound circuit portion I 500 of the sound card I 460 mounted in the portable computer A1 becomes inoperative, and instead the sound of the sound card II 470 mounted in the audio docking system A2. The circuit section II 310 is operable.

Control signals ENABLE-AEN, ENABLE-IRQ, and ENABLE-DMA applied to the control terminals of the buffers 520-540 are applied through the GPIO port of the selector 600.

8 is an operation flowchart of the sound reinforcement device of the portable computer according to the embodiment of the present invention, the structure is a step (S10) to start the operation by applying power, as shown in Figure 8, the portable computer (A1) Checking the docking-in signal of the audio docking system A2 to determine whether it is mounted (S20), and the buffer 520-540 of the sound circuit unit I 500 when the audio docking system A2 is connected. Deactivating step (S30), initializing all ports of the portable computer (A1) (S40), initializing step (S50) for operating the sound circuit section II 310, sound circuit section II (310) Realizing a sound function using the step S60, initializing all ports in the portable computer A1 when the audio docking system A2 is not connected to the step S70, and the sound circuit unit I 500. Initializing step (S80) and the sound circuit Using the I (500) and the step (S90) for realizing the sound function, a step (S100) to end the operation.

9 is a diagram illustrating a connection state between the connector and the sound circuit unit II 310 according to the exemplary embodiment of the present invention.

As shown in FIG. 9, an address terminal, a data terminal, and a control line of the sound circuit unit II 310 are connected to a 200-pin connector, and the 200-pin connector outputs a docking-in signal.

The action according to the embodiment of the present invention having such a structure is as follows.

According to the present invention, when the audio docking system A2 is connected to the portable computer A1, the sound is mounted on the audio docking system A2 without causing a collision with the sound card I 460 mounted inside the portable computer A1. Card II 470 is selected and driven.

However, when the portable computer A1 is in operation, the audio docking system A2 cannot be mounted. The portable computer A1 must be powered off and then mounted.

First, power is supplied to the portable computer A1, and the CPU 410 calls and executes the BIOS in the memory 420 and determines whether the audio docking system A2 is mounted (S10 and S20).

If the audio docking system A2 is connected to the portable computer A1 and mounted, the CPU 410 applies the selector 600 to the control terminals of the buffers 520-540 of the sound card I 470. The control signals ENABLE-AEN, ENABLE-IRQ, and ENABLE-DMA can be output to the high level HIGH, thereby debuffing the buffers 520-540 (S30).

Thus, the CPU 410 initializes all ports inside the portable computer A1 and sets initial values necessary for the operation of the sound circuit section II 310 of the sound card II 470 of the audio docking system A2 ( S40, S50).

Then, the CPU 410 enables the sound function to be realized using the sound circuit section II 310 of the sound card II 470 (S60).

However, if it is determined in step S20 that the audio docking system A2 is not mounted, the CPU 410 initializes all ports in the portable computer A1 (S70).

Then, the initialization necessary for the operation of the sound circuit unit I 500 of the sound card I 470 is executed, and the sound data selected by the user can be realized through the sound circuit unit I 500 (S80 and S90). .

As such, the present invention may separately mount a sound card having a high function on the outside of the portable computer, and use a sound card in the portable computer having a relatively lower function than a sound card attached to the outside according to a user's needs, or You can select and use the sound card attached to the.

Therefore, the present invention produces an effect that can improve the sound function of the portable computer without any difficulty.

Claims (3)

An input device for inputting data or control commands, a central processing unit for performing a control operation in accordance with a control program by data or control commands inputted from the input device, and outputting corresponding data in accordance with a control operation of the central processing unit; A second sound controller that processes and outputs input voice data in a portable computer including a display device, a memory in which a control program or control data is stored, and a first sound controller that processes and outputs input voice data. And an audio docking system having a built-in and connectable to the portable computer, wherein the CPU determines whether the audio docking system is mounted, and when the audio docking system is mounted in the portable computer, the second sound controller. The second sound so that voice data can be processed via The controller is enabled and the first sound controller di jeobeul sound reinforcement device for a portable computer, comprising a step. According to claim 1, wherein the first sound controller converts the voice data input by the central processing unit into a usable state, processes and outputs it, inputs the voice data applied from the outside, and processes the processed voice data. A sound circuit unit having a plurality of input / output terminals that can be output to the outside; An OR gate in which an AEN (Address ENable) signal is applied to one input terminal of a central processing unit, and an operation state of the sound circuit unit is changed according to a state of an output signal that is ORed; A first buffer which enables the sound circuit unit to output an interrupt request signal IRQ to the central processing unit; A second buffer which enables the sound circuit unit to output a DMA request signal DRQ to a central processing unit; A third buffer configured to output a DMA recognition signal (DACK) applied from a central processing unit to the sound circuit unit; And a selector for outputting a control signal capable of enabling or disabling the operating states of the first to third buffers to the control terminals of the first to third buffers. Device. A sound reinforcing method for a portable computer applied to a portable computer having a first sound controller and an audio docking system having a second sound controller, the method comprising: determining whether an audio docking system is mounted; If it is determined that the audio docking system is mounted, outputting a control signal capable of degrading the first sound controller embedded in the portable computer; Initializing the portable computer; Initializing an operating state of a second sound controller in the audio docking system to an operable state; Initializing the portable computer when it is determined that the audio docking system is not mounted; And initializing an operating state of the first sound controller, and then operating the first sound controller.