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JPH1127776

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPH1127776
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker system for a personal computer, and more particularly to a speaker system having a USB
(Universal Serial Bus) device, and more particularly to an audio digital computer connected with
a computer supporting USB. The present invention relates to a speaker system having an audio
signal processing unit for controlling a signal and having a USB port for realizing sound effects
such as equalizer, three-dimensional sound, woofer and loudness.
[0002]
2. Description of the Related Art Modern computers have more diverse functions, i.e., generalpurpose functions, audio functions, video functions, and communication functions, as compared
to earlier computers performing one or two simple functions. So-called multimedia functions
such as are required. As a result, the peripheral devices of the computer become diverse, the
installation method for connecting these peripheral devices to the computer body becomes
complicated, and the processing of the connecting cable also becomes a problem.
[0003]
Generally, as shown in FIG. 9, the computer device 20 as a main body is controlled by a monitor
device 10 connected as a display device, a mouse 31 as a pointing device, and a sound card
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attached to the computer device 20 The system includes a speaker 71, 72 as an output device of
an audio signal to be output, a microphone 73 for voice input, a communication telephone 32
connected to a modem of a computer device, a keyboard 30, a printer 33 and the like. The
monitor device 10 applied to the computer is connected to the computer device 20 through a DSUB or BNC video cable 11 as a normal connection means.
[0004]
The computer device 20 sends video signals to the monitor device 10 through the cable 11, for
example, R (red), G (green), B (blue) video signals, horizontal and vertical sync signals, and other
various information signals necessary to drive the monitor. I will provide a. Further, various
signals corresponding to the monitor drive result are provided from the monitor device 10 to the
computer device 20 through the cable 11.
[0005]
In addition, since the computer device 20 connects the sound card and the speakers 71 and 72
and the microphone 73, which are provided internally for the input and output of audio signals,
to the connecting wire 12 of another degree, the connecting wire of each peripheral device is
very Become complex, which provides great inconvenience when installing.
[0006]
FIG. 10 shows a configuration in which the sound card 23 mounted on the computer device 20
shown in FIG. 9, the speakers 71 and 72 and the microphone 73 are directly connected.
The audio signal generated from the sound circuit unit 26 is output to the speaker devices 71
and 72 through the volume adjustment unit 27 that performs a simple audio signal adjustment
function such as volume, balance, or tone. In the conventional computer device 20, according to
the sound control program 24 supported by the computer device 20 and the sound card 23, not
only simple audio signal adjustment functions such as volume, balance or tone, but also sounds
such as equalizer, loudness and three-dimensional sound It also supports the effects, but there is
a complication that the program 24 has to be executed as needed.
[0007]
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Further, according to the above description, as shown in FIG. 9, when connecting the printer 33
and other peripheral devices in addition to the keyboard 30 and the monitor device 10, as shown
in FIG. Not only is the connector connection complicated, but when connecting a peripheral
device to such a conventional computer device, the user has to make various settings because
there is no plug and play function.
[0008]
In order to solve such problems, a standardization scheme related to electrical communication
protocol and mechanical connector structure common to various computer makers and
peripheral device makers and related to connection of peripheral devices is proposed, and these
are USB As a result.
[0009]
FIGS. 11 and 12 show still another aspect of the conventional computer system which does not
support such a USB system.
[0010]
11 and 12 show a speaker device and a microphone device provided inside the monitor device.
First, referring to FIG. 11, speaker devices 71a and 72a for inputting and outputting audio
signals and a microphone device 73a are provided on the front of monitor device 10a, and
another connection cable 12a is used for audio input and output. It is connected to the device
20a.
[0011]
The monitor device 10a also includes an adjustment unit 74 connected to the computer device
20a through the D-SUB or BNC video cable 11a and adjusting a simple audio signal such as a
volume as in the system shown in FIG. .
A keyboard 30a, a mouse 31a and other peripheral devices 33a are also connected appropriately.
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[0012]
Specifically, referring to FIG. 12, the conventional monitor 10a has a power management
function to adjust the power supplied from the power plug to various voltage levels required by
the monitor circuit and to save the power. A power supply unit 13, a video signal processing unit
14, a horizontal and vertical sync signal processing unit 15, a monitor control unit 16, a CRT 17,
an audio output unit 75, and an audio signal conversion unit 76 are mainly configured.
[0013]
The monitor control unit 16 receives monitor drive information input through the D-SUB or BNC
video cable 11a connected to the computer device 20a, and controls signals Cv to Cvn necessary
for video signal processing, that is, an image adjustment signal and the like. It outputs RGB drive
signals and RGB cutoff adjustment signals, and outputs control signals Cs1 to Csm for adjusting
the screen and focus according to monitor drive information.
[0014]
The video signal processing unit 14 processes the R, G and B video signals inputted through the
cable 11 a connected to the computer device 20 a by the control signals Cv 1 to Cvn outputted
from the monitor control unit 16 and provides them to the CRT 17.
[0015]
Further, the horizontal and vertical sync signal processing unit 15 processes the vertical sync
signal Vsync and the horizontal sync signal Hsync inputted through the cable 11a by the control
signals Cv1 to Cvn, deflects the beam of the CRT 17, and controls the screen and focus. .
[0016]
The audio output unit 75 is connected to the sound card of the computer device 20a and another
connection cable 12a, receives an audio control signal provided from the monitor control unit
16, and adjusts the volume, balance, tone, etc. of the output signal, It comprises an amplification
and adjustment unit 77 for amplifying the audio signal, and speaker units 71a and 72a for
receiving the audio signal provided from the amplification and adjustment unit 77 and outputting
the signal to the outside.
[0017]
The audio signal conversion unit 76 mainly includes a microphone 73a that converts an input
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audio signal into an electric signal, and an amplification and adjustment unit 78 that
preliminarily amplifies the electric signal and adjusts the input level of the microphone. It is
done.
[0018]
As shown in FIGS. 11 and 12, the D-SUB or BNC video cable 11a connected to the monitor device
10a transmits only video signals, synchronization signals, and various monitor driving
information to the computer device 20a. The output speakers 71a and 72b and the voice input
microphone device 73a are connected to the computer device 20a via another connection cable
12a.
[0019]
Also, many connectors are required to connect the peripheral device and the computer device, so
the connection cable wiring is not only complicated but also the plug and play function is not
supported.
Also, when the user tries to connect these devices, the connection work is very inconvenient
because there is no connection structure in the area viewed by the user.
[0020]
As described above, in order to solve the above-mentioned problems, a speaker system having a
USB port has been proposed in the past to unify the connection between the computer system
and the peripheral device. It is not enough to realize high quality sound effects such as equalizer,
three-dimensional sound, woofer and loudness that follow the trend of multimedia computer
which is one feature.
[0021]
SUMMARY OF THE INVENTION An object of the present invention is to solve the abovementioned problems, and to provide an audio signal processing unit to a speaker system
provided with a USB port connected to a computer supporting USB. It is an object of the present
invention to provide a new and improved personal computer speaker system capable of realizing
sound effects such as an equalizer, a three-dimensional sound, a woofer and a loudness.
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[0022]
According to a first aspect of the present invention, there is provided a speaker system for a
personal computer, comprising: A USB device for receiving a digital audio signal and transmitting
the first digital audio signal to the speaker system, and processing the first digital audio signal
according to a control signal associated with a sound effect, An audio signal processor for
generating one analog audio signal, a pair of speaker systems for receiving the first analog audio
signal and generating audio, and the control signal corresponding to the operation level of a
control key And an audio control panel for providing a speaker system.
[0023]
Thus, the present invention relates to a speaker system for audio output used with a computer
supporting USB, more specifically, a USB port for inputting / outputting audio digital data from /
to the computer, a USB port and a speaker USB interface connected to the inside of the system to
transmit digital audio data by USB communication protocol, and to apply power supplied via USB
port, USB function device connected via USB port and connection position with USB host And
configure a USB device including a USB controller having configuration information.
[0024]
And an audio control key having a plurality of control keys having a plurality of input / output
adjustment levels, through which signals for controlling sound effects such as equalizer,
stereophonic sound, woofer and loudness are transmitted to the inside of the speaker system,
and audio Modulates an audio analog signal to be provided through an input terminal connected
to a signal input microphone device and a microphone connected to the input terminal into an
audio digital signal, and demodulates an audio digital signal provided from a USB device into an
audio analog signal An audio signal processing unit equipped with a sound effect related
algorithm that processes a signal modulated and demodulated by a control signal provided from
an audio control key, provides an audio analog signal to an amplifier, and provides an audio
digital signal to a USB device Including It is formed.
[0025]
As described above, by connecting the speaker system through the hub provided to the computer
device or the monitor device, simple cable connection processing can be performed, and a
convenient installation can be performed by the plug and play function.
Also, by processing the digital signal transmitted through the USB by the audio signal processing
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unit having an audio control function in the speaker system, clear sound quality and sound
effects such as equalizer, three-dimensional sound, woofer and loudness can be realized.
[0026]
In a preferred embodiment of the invention, the audio signal processor, as claimed in claim 2,
comprises an analog to digital converter for converting the second analog audio signal from the
microphone into a second digital audio signal A digital signal processor for processing said first
and / or second digital signals, and digital / analog conversion for converting said first and / or
second digital audio signals into a third analog audio signal And a vessel.
[0027]
Furthermore, as described in claim 3, it is preferable to include an audio amplifier for amplifying
the first analog audio signal from the audio signal processor and outputting the amplified first
analog audio to the speaker.
[0028]
Furthermore, as described in claim 4, a power supply for supplying a power supply voltage to the
speaker system is provided, and the power supply uses a voltage applied from the computer and
/ or an external power adapter. Can be configured to
[0029]
Furthermore, as described in claim 5, the USB device is connected to the root hub of the
computer and / or the hub port of the peripheral device through the USB cable, and the first
digital audio signal according to the USB communication protocol. It is preferable to provide a
USB interface for transmitting and a device configuration information for performing a plug and
play function.
[0030]
According to a second aspect of the present invention, there is provided a speaker system for a
personal computer according to a second aspect of the present invention, which receives a first
digital audio signal from a USB-supported peripheral device. An audio signal processor for
processing the first digital audio signal to generate a first analog audio signal in response to a
control signal associated with a sound effect, and a first analog audio signal A speaker system is
provided, comprising: a pair of speakers for generating sound; and an audio control panel for
generating the control signal corresponding to the operation level of the control key.
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[0031]
Preferably, the speaker system is provided in a USB supported peripheral device as described in
claim 7.
[0032]
Furthermore, preferably, the USB-supported peripheral device is a computer monitor as
described in claim 8.
[0033]
BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present
invention will now be described in detail with reference to the accompanying drawings.
In the following description and the attached drawings, members having substantially the same
functional configuration will be denoted by the same reference numerals and redundant
description will be omitted.
[0034]
First, referring to FIGS. 1 to 3, to describe a general USB system, the USB system is a cable bus
that supports data exchange between a USB host and a USB device that can be accessed
simultaneously over a wide range, It is defined by the area divided by the USB interconnect, USB
device, and USB host.
[0035]
The USB interconnect is an area where USB devices are connected to the host to communicate,
USB devices are USB hubs that provide additional connections to specify USB, and USB devices
are USB functional devices (USB Functions Device), that is, a functional device for providing an
ability to connect to an ISDN connection connected to a USB port, a digital joystick, a printer, a
speaker or the like.
[0036]
Also, there is only one USB host in the USB system, which is connected to the USB device by the
host controller that controls the USB system and the USB system software.
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[0037]
There are two modes for USB signal transmission, one is USB full-speed signaling bit rate mode
and its speed is 12Mbs, and the other one is limited capacity low speed signal transmission Its
speed is 1.5 Mbs as a mode (limited compatibility low speed signaling mode).
[0038]
In theory, since the number of peripheral devices that can be connected via a USB cable is 127,
many USB expansion connectors are required to effectively use the USB cable.
[0039]
As shown in FIG. 1, the USB cable 10 transmits signals and power through four wire cables.
The four wire cables are composed of two lines D + and D- for transmitting the USB signal and
two lines VBus and GND for supplying power.
[0040]
A device proposed for extending such a USB cable 40 is a USB hub.
[0041]
As shown in FIG. 2, the USB hub 50 not only relays through one upstream port (Port # 1 to Port
# 7) to extend the peripheral device of the computer, but also by its own controller. It can control
the power supply of the down stream port and control the communication speed.
[0042]
The USB hub 50 can be used to distribute power and manage power to USB devices.
Power distribution through USB can control how the USB device consumes the power supplied by
the USB host through USB, and power management means that the USB software and USB device
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are in the USB host Control how the power management system is encountered.
[0043]
Specifically, in power distribution, each USB segment supplies limit power (5 V / 500 mA)
through the cable 10.
The USB host supplies the power used by the directly connected USB device.
[0044]
Also, the USB device can have its own power supply device.
USB devices provided through a USB cable are generally referred to as bus-powered devices,
whereas USB devices with AC power are self-powered devices It is called.
Also, the hub supplies power for the USB device connected to it.
[0045]
Generally, the USB host has a power management system separately from the USB device.
The USB software interacts with the power management system of the USB host to perform
operations on system power, such as suspend mode and resume mode.
Also, the USB device can mutually transmit power management information by a power
management system program of the USB system, a driver and the like.
[0046]
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10
Also, the USB host detects the attachment / detachment and connection position (address) of the
USB device, recognizes the configuration of the USB device, controls and manages
communication between the USB host and the USB device, and communicates normally. Select
the mode according to the function and operating status of the USB device to be able to.
[0047]
Referring to FIG. 3, the hub 50 is comprised of two parts: a hub controller 52 and a hub repeater
51.
The hub repeater 51 has a hardware support device for reset and suspend / resume signal
transmission as a protocol control switch located between the up and down stream ports.
The hub controller 52 provides an interface register so that communication with the host or from
the host can be performed.
[0048]
Hereinafter, a preferred embodiment of a computer speaker system according to the present
invention will be described in detail with reference to FIGS.
[0049]
Referring to FIG. 4, a speaker system 800 according to the present embodiment includes a USB
port 821, and can be connected to a computer that supports USB.
Furthermore, an audio signal processing unit 810 including a function of controlling an audio
signal internally through a stereophonic sound related algorithm and transmitting the signal, and
the audio signal processing unit 810 are connected with the USB port 821 to receive digital
signals. A USB device 820 for controlling this, a power supply unit 830 for supplying drive
power, and a plurality of adjustment levels provided outside the speaker system for transmitting
signals related to the three-dimensional sound effect to the processing unit 810 It comprises and
comprises an audio control key 850 composed of knobs and buttons possessed.
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[0050]
Specifically, the USB device 820 includes a USB port 821, a USB interface 822, and a USB
controller 823.
[0051]
The USB port 821 is connected to a root hub of a computer device or a hub port of a monitor
device through a USB cable to input and output audio signals.
[0052]
The USB interface 822 is connected to the USB port 821 and the audio signal processing unit
810 to transmit digital audio data by the USB communication protocol, and applies the power
supplied through the USB port 821 to the USB device.
[0053]
The USB controller 823 includes the function of the USB functional device connected via the USB
port 821 and configuration information that recognizes the connection position (connection
address) with the USB host, and performs the plug and play function.
[0054]
The audio signal processing unit 810 is a microphone 860 connected to the audio input terminal
861 (see FIG. 5).
And an A / D converter 811 for converting an audio signal input from the) into a digital signal,
and a processor for controlling the digital signal input through the USB device 820 and the audio
signal input through the A / D converter 811 (DSP: 812) and a signal processed by the processor
812 is demodulated into an analog signal, and the D / A converter 813 for transmitting this to
the amplifier unit 840 is configured.
In addition, control signals based on a plurality of adjustment levels for controlling threedimensional sound effect functions such as volume, balance, three-dimensional sound, equalizer,
loudness and woofer function, for example, operation levels of audio control keys 850 mounted
outside speaker system 800 The processor 812 accepts and controls high quality sound effects
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such as stereophonic sound (3D, virtual-3D), equalizer, loudness and woofer function through
stereophonic sound effect algorithm.
[0055]
The power supply unit 830 includes a power supply supplied to the USB device through a hub of
a computer device or a monitor device and, additionally, a power adapter external to the speaker
system to supply driving power of the speaker system.
[0056]
FIG. 5 shows a configuration in which the speaker system 800 according to the present
embodiment is connected to the monitor device 100 and further connected to the computer
system 90 via the hub port 50 shown in FIG.
[0057]
Referring to the drawing, the computer device 90 includes two root hubs (Root Hub: RH1 and
RH2) as an example, and the root hub RH1 therein is connected to the upstrim port UP1 of the
hub provided in the monitor device 100. The other one root hub RH2 is connected through the
USB cable 40 to the telephone set 92 provided with the USB device connector DC1.
[0058]
Further, a speaker system 800 is connected to the downstrim port DP1 of the monitor device
100 through the USB port DC2, and a microphone 860 is connected to the outside through the
audio input terminal 861 of the speaker system 800.
[0059]
A hub provided in the monitoring device 100 supplies power to a USB device or USB device
connected to the hub as a self-powered device (self-powered device) to which power is supplied
by itself.
For example, as shown in FIG. 5, the downstrim ports DP1 and DP2 of the hub of the monitoring
apparatus 100 are connected to the speaker system 800 and the printer 96 through respective
USB device connectors DC2 and DC3.
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[0060]
The hub provided to the speaker system 800 and the printer 96 includes a local power supply.
The downstrib port DP3 of the hub of the monitor 100 is connected to the keyboard 93 through
the upstrim port UP2 of the hub embodied in the keyboard 93.
[0061]
The hub 50 provided on the keyboard 93 serves as a bus-powered device for supplying power
via USB, and the USB device and USB device (USB Function Devices) connected thereto via the
USB cable 40, for example, Supply power to the pen 95 and the mouse 94 etc.
Therefore, the keyboard 93 is connected to the USB port DC4 of the pen 95 and the USB port
DC5 of the mouse 94 through the down-slim ports DP4 and DP5.
[0062]
Further, in the configuration in which the speaker system 800 is connected via the monitor
device 100 according to the present embodiment described above, a hub controller that controls
power supply to the USB device via the hub of the monitor device 100 is provided. Since the
peripheral devices of the computer system are directly connected to the monitor device 100 and
the plug and play function is performed, the user can connect the devices more conveniently.
[0063]
FIG. 6 shows the connection configuration between the monitor device 100a shown in FIG. 5 and
the speaker system 800a according to the present embodiment, and the hub port DP1 of the
monitor device 100a and the USB port 821 of the speaker system 800a are It is connected
through the USB cable 40.
Further, a microphone 860 for inputting an audio signal is connected to an audio input terminal
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861 provided outside the speaker system 800a.
[0064]
The monitor apparatus 100 is supplied with power from the power plug, outputs voltages of
various levels necessary for the monitor circuit, and has a power supply unit 102 having a power
management function for reducing power consumption, and a video signal processing unit It is
mainly composed of 103, a horizontal and vertical sync signal processing unit 104, a monitor
control unit 105 for controlling general signals of monitor operation, and a CRT 106, and further
comprises a USB hub system.
[0065]
The hub system applied to the monitoring apparatus 100 is connected through an I2C or a UART
to communicate information with the monitor control unit 105 as shown, and corresponding
control is performed according to the information provided through the root hub of the
computer system. A USB control unit 107 that executes an operation, and a power switching unit
108 that selectively provides the USB device with the power provided by the power supply unit
102 in the monitoring apparatus 100 according to the control signal provided by the control unit
107; , Mainly composed of input / output ports UP1 and DP1 to DP3.
Here, the input port UP1 is an up-strimm port for inputting power and information provided
from the root hub RH1 of the computer system, and the output ports DP1 to DP3 are power
sources using USB devices and USB devices such as a keyboard, pen and mouse. It is a downstrim port performing delivery and communication.
[0066]
The power supply unit 102 has an efficient power saving function, and supplies the monitor
apparatus 100 with a necessary power, that is, + 80V, + 150V, + 24V, + 12V, + 5V.
In particular, the +5 V power supply is used as a power supply of the USB down-strim port in the
hub system provided in the monitoring apparatus 100, and is switched by a control signal
provided by the USB control unit.
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Upstream port UP1 of the hub is comprised of Vdd, data +, data-, and ground segments, like USB
cable 40 shown in FIG.
[0067]
The USB control unit 107 has a function of inputting data provided from the computer system 90
through the upstrim port UP1 and repeating the data to the downstrim ports DP1 to DP3.
Also, the control unit 107 stores and analyzes a signal for controlling the monitor apparatus 100
from the computer system 90, and transmits information to the monitor control unit 105 again
through an I2C or UART communication protocol.
[0068]
The speaker system 800 includes an audio decoder D / A converter 813 which is an audio
decoder, an A / D converter 811 which is an audio encoder, and an audio signal and an audio
control key 850 which are input from the computer through the USB port 821. The audio signal
processing unit 810 includes a processor (DSP: 812) having a sound effect algorithm that
processes high quality sound effects through the input control signal.
[0069]
Then, the power supplied to the power supply unit 830 of the speaker system 800 through the
power supply adapter provided outside is used as a driving power of the speaker system.
[0070]
As described above, the monitor device 100 provided with the hub system can directly connect
peripheral devices of the computer, such as a keyboard, a light pen, a printer, a speaker system,
etc., through the down-strim port of the hub.
Also, power supply to USB devices and USB devices (keyboard, pen, mouse, etc.) can be controlled
through the built-in hub system.
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The speaker system 800 and the USB function device such as the printer 96 can be configured
by adding a power supply unit.
[0071]
Further, FIG. 7 illustrates another connection of the speaker system 800 as the second
embodiment according to the present invention, and in particular, the speaker system 800a
according to the embodiment of the present invention is provided in the monitor device 100b.
Shows how to
The same reference numerals are given to components having substantially the same functional
configuration as the components shown in FIG. 6 and redundant description will be omitted.
[0072]
Referring again to the drawing, in addition to the configuration of the monitor device 100
according to the first embodiment shown in FIG. 5, the USB port 821 of the speaker system 800a
is connected to the hub port DP4 connected internally through the USB control unit 107. Since
the second embodiment is substantially the same as the first embodiment except for the
configuration described above, the description of the same components will be omitted.
[0073]
In this embodiment, the USB port 821 of the speaker system 800a is connected to the hub port
DP4 connected to the USB control unit 107, and an audio signal is input from the computer
apparatus 90 through this.
[0074]
Then, the speaker system is driven by the power supplied to the power supply unit 830 of the
speaker system 800a through the power supply unit 102 of the monitor device 100b.
That is, the power supplied via the power supply line 109 internally connected from the power
supply unit 102 of the monitor device 100a is converted to a voltage (for example, about 9 V, 12
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17
V, 15 V) suitable for driving the speaker system 800 and applied. .
[0075]
The microphone device 860 is provided inside the monitor device 100b, is connected to the A /
D converter 811 of the speaker system 800a, and inputs an audio signal.
[0076]
The audio control key 850 is provided at an easily adjustable position on the front surface of the
monitor device 100a, and transmits a control signal for controlling the sound effect to the
processor 812 through these adjustments.
[0077]
Yet another embodiment of a speaker system 800 connection according to the present invention
is shown in FIG.
With respect to the peripheral device illustrated in FIG. 8, members having substantially the same
functional configuration as the peripheral device illustrated in FIG. 5 will be assigned the same
reference numerals.
[0078]
Referring to the drawing, the computer apparatus 90 is provided with three root hubs (Root Hub:
RH1, RH2, RH3) as a point different from the connection configuration illustrated in FIG. 5, and
one root hub RH1 among them is provided. Is connected to the up-strim port UP1 of the hub
provided in the monitor 100, and the telephone 92 provided with the USB device connector is
connected to the other one root hub RH2 through the USB cable.
[0079]
The speaker system 800 is connected to the other one root hub RH3 through the USB port DC2,
and the microphone device 860 is connected through the audio input terminal 861 of the
speaker system 800.
[0080]
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18
The root hubs RH1, RH2, and RH3 provided in the computer device 90 are self-powered devices
(not shown) that themselves supply power, similar to the hubs UP1, DP1, DP2, and DP3 of the
monitoring device 100 illustrated in FIG. As a self-powered device, USB devices and USB devices
connected to this hub can be powered.
[0081]
Also, the speaker system 800 connected to the root hub RH3 of the computer supplies power for
operating the speaker system 800 through a power adapter provided as a power supply unit
830.
[0082]
The preferred embodiments of the computer speaker system according to the present invention
have been described above with reference to the accompanying drawings, but the present
invention is not limited to such examples.
It is obvious for those skilled in the art to be able to conceive of various changes or modifications
within the scope of the technical idea described in the claims, and it is naturally also within the
technical scope of the present invention. It is understood that it belongs.
[0083]
As described above, according to the present invention, the plug and play function of the speaker
system is realized by connecting the computer system and the speaker system by using the USB,
which is simple and convenient. An apparatus can be provided.
[0084]
Furthermore, according to the present invention, it is possible to transmit digital audio signals
and obtain clearer sound by connecting using a USB in connection between a computer system
and a speaker system.
[0085]
Furthermore, according to the present invention, since the audio signal processing unit having a
sound effect algorithm for processing the audio signal input to and output from the inside of the
speaker system is included, high quality such as equalizer, stereophonic sound, loudness and
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woofer function is provided. It is possible to get a sound effect.
[0086]
Brief description of the drawings
[0087]
1 is a diagram showing the structure of a USB cable used to implement an embodiment of the
present invention.
[0088]
2 is a diagram showing the input and output ports of the hub used to implement an embodiment
of the present invention.
[0089]
3 is a view showing the structure of the hub shown in FIG.
[0090]
4 is a block diagram showing a component circuit of the speaker system according to an
embodiment of the present invention.
[0091]
<Drawing 5> The speaker system by the 1st execution example of this invention and the figure
which shows the constitution which is connected to the hub port of monitor deviceIt is the figure
which shows simply.
[0092]
6 is a block diagram showing the connection of the monitor device and the speaker system
shown in FIG.
[0093]
<Figure 7> It is the block diagram which shows the constitution of the monitor which possesses
the speaker system due to the 2nd execution example of this invention.
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[0094]
<Figure 8> It is the figure which shows the constitution where the speaker system due to the 3rd
execution example of this invention is connected to the computer device through the root hub
port simply.
[0095]
9 is a perspective view showing the configuration of a general computer.
[0096]
10 is a block diagram showing the connection of the sound card and the speaker device of the
computer shown in FIG.
[0097]
FIG. 11 is a perspective view showing the configuration of a computer equipped with a monitor
device incorporating a speaker device according to the prior art.
[0098]
12 is a block diagram showing a configuration circuit of the monitoring device shown in FIG.
[0099]
Explanation of sign
[0100]
40: USB cable 50: USB hub 90: computer device 100: monitor device 800: speaker system 810:
audio signal processing unit 820: USB device 830: power supply unit 840: amplifier 850: audio
control key 861: microphone input terminal 870: speaker unit
10-05-2019
21
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