KR20040097506A - System for uniting wireless speaker - Google Patents

Abstract

PURPOSE: An integrated wireless speaker system is provided to output regenerated audio data to all home electronics including a television, an audio set, a game player, and a DVD player by using only one wireless speaker. CONSTITUTION: An integrated wireless speaker system includes a speaker part and an integrated wireless speaker module. The speaker part(30) includes various kinds of channels to output regenerated sound of received audio data. The integrated wireless speaker module(20) is used for receiving the audio data from a plurality of home electronics and transmitting particular audio data of the received audio data to the speaker part.

Description

Integrated wireless speaker system {System for uniting wireless speaker}

The present invention relates to an integrated wireless speaker system, and more particularly, to a technology for implementing an integrated audio system that enables voice output of all home appliances using one wireless speaker in a home or office.

Currently, home appliances such as TVs, audio, computers, game consoles, and digital video discs (DVDs) provided in most homes and offices are equipped with speakers for sound output. In order to satisfy the sound quality, 5.1 channels are used in addition to the two channels having stereo functions, and 7.1 channels are being developed to maximize the stereoscopic or realism of the sound.

The two-channel sound method is a sound method that reproduces and outputs an audio signal divided into an L channel and an R channel to realize a surround effect. Most audio systems employ a two-channel sound method.

On the other hand, the adoption of digital audio data as an audio signal inside the device eliminates the drawbacks of the analog processing method, so that the penetration rate of digital devices such as DVD, laser disk, digital TV, high definition television (HDTV), etc., increases to 5.1 channels. The use of the structured sound system is becoming more common.

The 5.1-channel is a 5-channel consisting of front R / L (Front Right / Light) speakers, rear R / L (Rear Right / Light) speakers, and a center speaker, and 0.1 channel composed of speakers for a subwoofer. The front R / L (Front Right / Light) speaker, the rear R / L (Rear Right / Light) speaker, and the center speaker output audio signals of 20 Hz to 20 Hz, and the sub The woofer spurker outputs an audio signal of 20 kHz to 900 kHz for bass reinforcement.

According to the 5.1-channel sound system, the listener can feel a sense of life or a three-dimensional effect through the sound signal output to the speaker.

However, since the sound system implemented as described above is realized by a structure in which home appliances such as TVs, audio, computers, game consoles, DVDs, and speakers are individually connected by wires, it is difficult to install and install the wires. In addition to the fact that indoor layout is impaired by the arrangement of the wires, there are disadvantages in that the speaker should be provided as many as the number of home appliances.

The problems caused by the development of wireless speakers and the connection between the home appliances and the speakers have been solved to some extent, but since the wireless speakers are installed separately for the home appliances, as many as the number of home appliances in a space having a plurality of home appliances It did not solve the disadvantage of having a wireless speaker.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to enable a plurality of home appliances to reproduce and output an audio signal using one wireless speaker.

1 is an overall configuration diagram of an integrated wireless speaker system according to an embodiment of the present invention.

Figure 2 is a detailed configuration diagram of the wireless speaker integrated module shown in FIG.

Integrated wireless speaker system according to a preferred embodiment of the present invention to achieve the above object,

A speaker unit of various channels for reproducing and outputting audio data wirelessly received;

And a wireless speaker integrated module configured to receive audio data from a plurality of home appliances, and to wirelessly transmit specific audio data among the input audio data to the speaker unit.

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

As shown in FIG. 1, the integrated wireless speaker system according to an exemplary embodiment of the present invention converts audio data from a device selected by a user from among audio data input from the home appliance 10 to an RF (Radio Frequency) signal, thereby wirelessly It is provided with a wireless speaker integrated module 20 for wireless transmission to the speaker unit 30 side.

In Fig. 1, the home appliance 10 can be applied to all devices that typically reproduce audio data, and in the embodiment of the present invention, the audio 10a, the computer 10b, the TV 10c, and the DVD 10d. ,… MP3 (10z) is presented as an example.

The audio 10a, the computer 10b, the TV 10c, the DVD 10d, and the like presented to the home appliance 10 may use audio data read from a storage medium or audio data transmitted through a transmission medium (airwave, Internet). Performs a function of outputting to the outside by reproducing.

Here, the difference is that the computer 10b, DVD 10d, HDTV, etc. reproduce audio data digitally in the apparatus, and the audio 10a, TV 10c, etc. reproduce audio data in an analog manner. However, since the reproduced audio data is input as an analog signal when input to the speaker, the wireless speaker integrated module 20 from the audio 10a, the computer 10b, the TV 10c, the DVD 10d, and the like. The audio data input to the may be an analog signal.

However, a device for processing a digital signal (for example, a computer, a CD player, or an MP3) has an output terminal capable of directly outputting digital audio data for data transmission to another digital device. 10z is shown as an example of a means for inputting a digital audio signal to the integrated wireless speaker control means 20.

In addition, the wireless speaker unit 30 shown in FIG. 1 is a front R speaker 30a, a front L speaker 30b, a rear R speaker 30c, a rear L, for example, in order to implement a 5.1-channel sound system. Although the speaker 30d, the center speaker 30e, and the subwoofer speaker 30f are provided, it is obvious that the detailed configuration of the wireless speaker unit 30 can be changed to implement various channel sound methods.

Hereinafter, a detailed configuration of the wireless speaker integrated module 20 shown in FIG. 1 will be described in detail with reference to the accompanying drawings.

Wireless speaker integrated module 20, the input unit 21 composed of a plurality of input terminals (21a to 21z), as shown in Figure 2, the user receives a home appliance corresponding to the sound source of the sound signal to be reproduced by the speaker A key input unit 22, which is a means for analyzing the key signal input from the key input unit 22, and outputs a selection signal corresponding to the input key signal, and an input unit based on the selection signal. 21. A signal selector 24 for selecting and outputting one or more audio data among the audio data input from 21, and an ADC (Analog Digital Converter) 25 for converting analog audio data output from the signal selector 24 into a digital signal. Input from the signal conversion unit 26 and the signal conversion unit 26 that processes tag insertion, timing distribution of signals, etc. in real time with respect to digital audio data input from the signal selection unit 24 or the ADC 25. Done The wireless module 27 and the input unit 21 converting the digital audio data into a radio frequency (RF) signal of 2.4 GHz and outputting the digital audio data to the antenna 28 so that the digital audio data can be wirelessly transmitted through the antenna 28. And a channel separator 29 for separating the digital audio data input through the channel and outputting the digital audio data separated for each channel to the signal selector 24.

In FIG. 2, the input terminals 21a, 21b, ... of the input unit 21 are analog input terminals, and six corresponding to FR, FL, RR, RL, C, and W are used for receiving analog audio data of 5.1 channels. An input jack is provided, and the input terminal 21z is a digital input terminal.

When analog audio data is input only through the input jacks of the FR and FL, the signal converter 26 processes the analog audio data in a two-channel sound system.

In FIG. 2, the jacks of the input terminals 21a and 21b are configured to support the 5.1-channel sound system that can accommodate the two-channel sound system. However, the jack configuration of the input terminal may be modified to accommodate the multi-channel sound system. .

In the present invention, the signal converter 26 processes tag insertion, timing distribution of signals, etc. in real time on the digital audio data input from the signal selector 24 or the ADC 25 so that no crosstalk occurs in the wireless speaker. In addition to this, the wireless bandwidth can be used efficiently. For reference, the tag is a bit signal corresponding to an identifier for identifying a channel of the transmitted data.

Hereinafter, the operation of the integrated wireless speaker system according to the embodiment of the present invention configured as described above will be described in detail.

Two channels of analog audio data reproduced and output from the audio 10a are input through the input terminal 21a, and 5.1 channels reproduced and output from the DVD 10d of the external home appliance 10 are input through the input terminal 21b. When the analog audio data is being input, when the user inputs "audio reproduction" through the key input unit 22, the input signal analyzer 23 transmits the audio selection signal to the signal selection unit 24.

Accordingly, the signal selector 24 may include two channels corresponding to an audio reproduction signal among two channels of analog audio data input through the input terminal 21a and 5.1 channels of analog audio data input through the input terminal 21b. Analog audio data is detected and output to the ADC 25.

The signal selector 24 corresponds to a sound source that provides audio data input from each input terminal 21a to 21d on the basis of a gain value of the audio data reproduced and output from the home appliances 10a to 10d. To determine the home appliance, the gain value of the audio data reproduced and output from the audio 10a is approximately 500mV, the gain value of the audio data output from the computer 10b is approximately 200mV, and the audio output from the TV 10c. The gain value of the data is approximately 700 mV, and the gain value of the audio data output from the DVD 10d is approximately 1000 mV.

By the above-described operation, when the signal selector 24 outputs the two-channel analog audio data input through the input terminal 21a to the ADC 25, the ADC 25 digitally converts the two-channel analog audio data. Output to the signal converter 26.

The signal conversion unit 26 inserts a tag for classifying channels into digital audio data, performs timing distribution to synchronize the sound signal output through the multi-channel speaker, and outputs it to the wireless module 27. The radio module 27 inserts a tag, converts audio data subjected to timing distribution into an RF signal, and transmits the radio data through the antenna 28.

The wireless speakers 30a to 30f extract only the digital audio data to be reproduced and output based on a tag included in the digital audio data transmitted wirelessly, and reproduce and output the extracted digital audio data. Since the digital audio data is two channels, the audio data of the R channel and the audio data of the L channel are reproduced and output through the front R speaker 30a and the front L speaker 30b, so that the listener can output two audio audio signals. You can listen.

On the other hand, unlike the case described above, when the user inputs "DVD play" through the key input unit 22, the input signal analysis unit 23 transmits the DVD selection signal to the signal selection unit 24.

Accordingly, the signal selector 24 is a 5.1 channel corresponding to the DVD playback signal of the analog audio data of the two channels input through the input terminal 21b and the analog audio data of 5.1 channels input through the input terminal 21b. The analog audio data is output to the ADC 25, and the ADC 25 digitally converts the 5.1 channel analog audio data and outputs the same to the signal converter 26.

After the signal conversion unit 26 inserts a tag into the digital audio data, distributes the timing, and the like, and outputs the digital audio data in which the tag is inserted and distributed in the timing to the wireless module 27, the wireless module 27 The digital audio data is converted into an RF signal and wirelessly transmitted through the antenna 28.

The wireless speakers 30a to 30f extract only the digital audio data to be reproduced and output based on a tag included in the digital audio data transmitted wirelessly, and reproduce and output the extracted digital audio data. Since the digital audio data is 5.1 channel, the front R speaker 30a, front L speaker 30b, rear R speaker 30c, rear L speaker 30d, center speaker 30e, subwoofer speaker 30f Audio data of the front R channel, the front L channel, the rear R channel, the rear L channel, the center channel, and the subwoofer channel is reproduced and output, so that the listener can listen to the 5.1-channel DVD sound signal.

If both "audio play" and "DVD play" are selected by the user, the input signal analyzer 23 transmits the audio select signal and the DVD select signal to the signal selector 24.

Accordingly, the signal selector 24 mixes two channels of analog audio data input through the input terminal 21b and 5.1 channels of analog audio data input through the input terminal 21b for each channel and mixes the mixed analog audio data. Is output to the ADC 25, the ADC 25 digitally converts the mixed analog audio data and outputs it to the signal converter 26.

After the signal conversion unit 26 inserts a tag into the digital audio data, distributes the timing, and the like, and outputs the digital audio data in which the tag is inserted and distributed in the timing to the wireless module 27, the wireless module 27 The digital audio data is converted into an RF signal and wirelessly transmitted through the antenna 28.

The wireless speakers 30a to 30f extract only the digital audio data to be reproduced and output based on a tag included in the digital audio data transmitted wirelessly, and reproduce and output the extracted digital audio data.

Since the digital audio data wirelessly transmitted to the wireless speakers 30a to 30f is a sound in which two channels and a 5.1 channel are mixed, the front R channel of the two channels and the front R channel of the 5.1 channel are provided through the front R speaker 30a. The synthesized and output, and through the front L speaker 30b, two L channels and 5.1 L front L channels are synthesized and output, rear R speaker 30c, rear L speaker 30d, center speaker 30e. ), Audio data of 5.1 channel rear R channel, rear L channel, center channel, and subwoofer channel is reproduced and output through the subwoofer speaker 30f. You can listen to the signal at the same time.

On the other hand, when the digital audio data is input through the input terminal 21z, the input digital audio data is separated for each channel by the channel separator 29 and input to the signal selector 24.

At this time, when "MP3 playback" is selected through the key input unit 22, the signal selector 24 outputs the digital audio data output from the channel separator 29 to the signal converter 26, and the signal converter After the tag insertion and the timing distribution are performed on the digital audio data in the digital audio data at 26, when the tag is inserted and the digital audio data with the timing distribution is input to the wireless module 27, the wireless module 27 ) Converts the digital audio data into an RF signal and transmits the radio signal through the antenna 28.

The wireless speakers 30a to 30f extract only the digital audio data to be reproduced and output based on a tag included in the digital audio data transmitted wirelessly, and reproduce and output the extracted digital audio data. When two channels of digital audio data are input through 21z, two channels of audio signals are output through the front R speaker 30a and the front L speaker 30b, and the 5.1 channel signals are input through the input terminal 21z. When digital audio data is input, the front R speaker 30a, the front L speaker 30b, the rear R speaker 30c, the rear L speaker 30d, the center speaker 30e, and the subwoofer speaker 30f are used. 5.1 channel audio signal is output.

According to the present invention as described above, there is an advantage that one wireless speaker can reproduce and output sound signals of various channels to all home appliances requiring a speaker, for example, TV, audio, game machine, computer, DVD, and the like.

In particular, the present invention does not produce an integrated speaker for a TV, audio, or the like. In the case of a TV, only the image reproduction output device and the audio reproduction device are provided, and in the case of audio, only the audio reproduction device is assumed. When the audio reproducing device is connected to the integrated wireless speaker module, it is possible to reproduce and output sound signals of various channels, thereby reducing the production cost of home appliances.

On the other hand, the present invention is not limited to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, such modifications and changes should be regarded as belonging to the following claims. will be.

Claims (8)

A speaker unit of various channels for reproducing and outputting audio data wirelessly received; And a wireless speaker integrated module configured to receive audio data from a plurality of home appliances, and to wirelessly transmit specific audio data among the input audio data to the speaker unit. The method of claim 1, The wireless speaker integrated module, Home appliance connection means comprising a plurality of input terminals for receiving audio data from the plurality of home appliances; A key input unit for receiving a selection signal for a reproduction output target from a user; A signal selection unit for selecting specific audio data among audio data input through the home appliance connection means based on the selection signal input through the key input unit; And And an audio data processor configured to process the audio data selected by the signal selector to enable wireless transmission and to transmit a frequency signal corresponding to the audio data to the speaker unit. The method of claim 2, The home appliance connection terminal, And a plurality of jacks for receiving analog audio data of various channels from the home appliance. The method of claim 3, wherein The home appliance connection terminal, And a jack for receiving digital audio data from the home appliance. The method according to claim 1 or 4, And a channel separator configured to separate digital audio data input through the home appliance connection terminal for each channel and output digital audio data separated for each channel to the signal selector. The method of claim 1, The audio data processing unit, An analog / digital converter configured to digitally convert the audio data output from the signal selector; A signal converter which inserts a tag for channel classification into digital audio data output from the analog / digital converter and performs timing distribution so that the digital audio data is output for each channel through the speaker unit; And a wireless module for inserting a tag in the signal converter and converting digital audio data whose timing is distributed into an RF signal and transmitting the radio signal through an antenna. The method according to claim 5 or 6, The signal conversion unit, If the audio data corresponding to the home appliance selected by the key input unit is analog, the analog audio data is output to the analog / digital converter, and if the audio data corresponding to the home appliance selected by the key input unit is digital, And outputting the digital audio data to the signal conversion unit. The method of claim 7, wherein The signal conversion unit, And extracting a gain value from the audio data inputted from the home appliance connection terminal to determine a home appliance providing the audio data.