KR200290112Y1 - Wireless Noraebang System Using Portable Terminal Equipment - Google Patents

Abstract

The present invention relates to a wireless karaoke system using a portable terminal, and a microphone for converting and transmitting a voice signal to a wireless signal; Transmitting means for modulating and transmitting the voice signal input through the microphone and the audio signal input through the portable terminal after mixing; It provides a device composed of a receiving means for demodulating the modulated signal transmitted wirelessly from the transmitting means and then output to the audio device, regardless of the place or time, it is easy to carry and does not require labor costs and costs due to movement In addition, it includes a silent control means for silent control of the output from the portable terminal and the microphone, by varying the nature of the sound source, such as sending the audio signal of the portable terminal, or only the audio signal of the microphone, to produce a variety of effects Can be.

Description

Wireless Noraebang System Using Portable Terminal Equipment

The present invention relates to a wireless karaoke system, and in particular, by connecting the transmitting and receiving devices to the portable terminal and the external audio device, respectively, to enable the wireless karaoke function to sing anywhere in accompaniment to sing along with the accompaniment It's about the system.

Conventionally, karaoke is installed in a closed space of a specific building, where the user pays a certain price, and selects a favorite song within the allowed time to sing through a microphone, wherein the monitor of the karaoke equipment As the lyrics are output, you can easily sing along. Therefore, karaoke is often set as a favorite place for modern people in various gatherings, and sometimes the karaoke room is searched to relieve stress.

However, the service using the karaoke device is relatively portable and takes a lot of space, and there is a problem in that labor costs and costs are required to move, and the person who wants to receive the karaoke device service has a specific place where karaoke or karaoke equipment is installed. Since you have to go to use, there was a problem that can not be limited to time and space.

Therefore, the present invention was devised to solve the above problems, by connecting wireless transmitting and receiving devices to the portable terminal and the external audio device, respectively, so that the karaoke function can be performed anywhere, anytime, anywhere. The goal is to provide a system that allows you to sing.

1 is an exemplary view showing the overall configuration of a wireless karaoke system according to an embodiment for applying the present invention.

2 is an exemplary view showing the configuration of a transmitting means in FIG.

Figure 3 is an exemplary view showing the configuration of the receiving means in Figure 1;

4 is an exemplary view showing the configuration of a transmission means of a wireless karaoke system according to another preferred embodiment for applying the present invention.

5 is an exemplary view showing the configuration of the receiving means of the wireless karaoke system according to another preferred embodiment for applying the present invention.

Explanation of symbols for the main parts of the drawings>

100: portable terminal 200: download server

300: microphone 400: transmission means

410, 520: amplifier 420: mixing unit

430: modulator 440, 550: output amplifier

450, 510: filter 460: silent control means

470: signal modulating means 500: receiving means

530: carrier remover 540: demodulator

560: signal strength detection means 600: audio device

700: PCM encoder 710, 800: Bluetooth module

A karaoke system using a portable terminal of the present invention for achieving the above object, In a wireless karaoke system using a portable terminal, a microphone for converting a voice signal into a wireless signal and transmits; Transmitting means for modulating and transmitting the voice signal input through the microphone and the audio signal input through the portable terminal after mixing; And receiving means for demodulating a modulated signal transmitted wirelessly from the transmitting means and outputting the modulated signal to an audio device.

Another object of the present invention is to provide a wireless karaoke system using a portable terminal, comprising: a microphone for converting and transmitting a voice signal into a wireless signal; Transmitting means for mixing the voice signal input through the microphone and the audio signal input through the portable terminal, converting the signal into a Bluetooth signal after the pulse code modulation (PCM) encoding process, and transmitting the mixed signal; And a receiving means for restoring the Bluetooth signal transmitted from the transmitting means and then outputting the audio signal to the audio device after a pulse code modulation (PCM) decoding process.

Hereinafter, an embodiment according to the present invention will be described with reference to the accompanying drawings.

1 is a view showing the overall configuration of the karaoke system according to an embodiment for applying the present invention.

Referring to FIG. 1, the wireless karaoke system includes a receiver's portable terminal (cell phone, PDA, etc.) 100, a service provider's download server 200, a microphone 300, a transmitter 400, and a receiver 500. And an audio device 600.

As shown in FIG. 2, the transmitting means 400 includes an amplifier 410 for amplifying the output of the microphone 300, a mixing unit for mixing the outputs of the portable terminal 100 and the amplifier 410 ( 420, a modulator 430 that receives and modulates an output signal of the mixer 420, an output amplifier 440 that amplifies and outputs an output signal of the modulator 430, and the output. The filter 450 removes noise from the signal output from the amplifier 440 and outputs the filter 450. The receiving unit 500 removes and outputs the noise of the signal received from the receiving antenna as shown in FIG. A filter 510, an amplifier 520 for amplifying the output signal of the filter 510, a carrier remover 530 for removing and outputting a carrier from the output signal of the amplifier 520, and the carrier remover ( A demodulator 540 for receiving an output signal from the signal 530 and demodulating the original signal into a demodulator 540; And an output amplifier 550 for amplifying and outputting the output signal.

In addition, the receiving means 500 is configured to include a signal strength detection means 560 for outputting a signal informing that when the intensity of the signal received from the transmitting means 400 is smaller than the set threshold signal size.

Referring to the operation of the embodiment according to the present invention configured as described above are as follows.

As shown in FIG. 1, after a user selects and downloads a song to be sung from the service provider's download server 200 through the portable terminal 100, the transmitter 400 is connected to the earphone jack of the portable terminal 100. The microphone 300 is connected to the transmission means 400 (when it is a wired microphone) and the microphone 300 is played while watching the lyrics displayed on the screen of the portable terminal 100 while playing the downloaded song. Sing through)

In addition, when a new song is updated, the download server 200 transmits an update content message to the portable terminal 100 to download the song if the user desires it.

The audio signal of the portable terminal 100 and the audio signal output from the microphone 300 and passing through the amplifier 410 are input to the mixing unit 420 of the transmitting means 400. And a silent control means (for example, a disconnect switch) 460 for silently controlling the output from the portable terminal 100 and the microphone 300, and receiving each sound source before mixing in the mixing unit 420. By varying the nature of the sound source sent to the means 500 (sending the audio signal of the portable terminal or only the audio signal of the microphone), various effects can be produced. That is, if only the audio signal of the microphone is selected, the wireless microphone function is performed, and if only the audio signal of the portable terminal is selected, the general audio function is performed.

The mixed audio signal mixed by the mixing unit 420 is modulated by the modulator 430, amplified by the output amplifier 440, passed through the filter 450, and then transmitted to the receiving unit 500 through the transmitting antenna. The modulator 430 includes a plurality of signal modulating means (for example, dip switches) 470 for frequency tuning with the receiving means 500. The modulation means 470 is adjusted to select a good channel.

In addition, the transmitting means 400 may control the volume of the audio signal output from the audio device 600 through the volume button of the portable terminal 100. That is, by transmitting the volume control signal corresponding to the operation of the volume button to the receiving means 500, it is possible to avoid the need to directly manipulate the volume of the audio device.

The receiving means 500 receives a mixed audio signal transmitted wirelessly from the transmitting means 400 through a receiving antenna, removes noise through the filter 510, and then amplifies and outputs it from the amplifier 520. The carrier remover 530 receives an input from the receiver 530, and the carrier remover 530 selects a carrier frequency equal to the modulation frequency selected by the transmitter 400 to remove the carrier. ) Is included.

The signal passing through the carrier remover 530 is demodulated to the original sound by the demodulator 540 and amplified by the output amplifier 550 and then output through the audio device 600. The output of the demodulator 540 is a signal. When the intensity of the signal received from the intensity detecting means 560 is smaller than the set threshold signal, the signal indicating that the transmitting means is separated from the receiving means to inform the user through the LED (lighting) or warning sound.

Further, the transmitting means 400 and the receiving means 500 are good when the signal-to-noise ratio of the selected channel is poor in the channel range which is automatically set without using the signal modulating means 470 and the frequency selecting means 570. It may be configured to include an automatic channel selection means (not shown) to move to another channel.

In addition, there are various methods of supplying power to the transmitting means 400 and the receiving means 500, a method using a power source of the portable terminal 100, a method using primary and secondary batteries, and an adapter power source. There is a way to use.

4 and 5 are exemplary views showing the configuration of the transmitting means and the receiving means of the wireless karaoke system according to another preferred embodiment for applying the present invention.

According to FIG. 4, the transmission means includes a Bluetooth module in the configuration of the amplifier 410, the silent control means 460, the mixing unit 420, the output amplifier 440, and the filter 450 illustrated in FIG. 2. The microphone 300 includes a pulse code modulation (PCM) encoder 700 and a Bluetooth module 710 for modulating an analog signal into a digitized pulse signal.

In addition, according to FIG. 5, the receiving unit includes the Bluetooth module 800 and the PCM decoder 810 in the filter 510, the amplifier 520, and the output amplifier 550 illustrated in FIG. 3.

In addition, the Bluetooth module built in the transmitting means 400 includes a transceiver for demodulating and modulating a signal, and the Bluetooth module built in the receiving means 500 includes a receiver for demodulating a signal.

Referring to the operation of the wireless karaoke system with Bluetooth according to the present invention as follows.

The audio signal of the portable terminal 100 and the audio signal output from the microphone 300 and passing through the amplifier 410 are mixed by the mixing unit 420 and input to the PCM encoder 700. Since the signal is distorted due to the noise generated inside and outside the line, the analog signal is modulated into a digitized pulse signal and output.

The audio signal output from the PCM encoder 700 is input to the Bluetooth module 710 to convert the audio signal into a Bluetooth signal, and then modulate and output the audio signal in the output amplifier 440 and then in the filter 450. After performing the noise canceling operation, a carrier modulated with an audio signal is transmitted through a transmission antenna.

The carrier is received by the receiving antenna of the receiving means 500 is sent to the filter 510, the filter 510 receives the carrier to filter the noise, and amplified through the amplifier 520 through the Bluetooth process Sent to module 800. The Bluetooth module 800 restores the Bluetooth-signaled audio signal and outputs it to the PCM decoder 810. The PCM decoder 810 decompresses the signal by decoding and restores it as an analog signal. ), And the output amplifier 550 amplifies the audio signal and outputs the audio signal to the audio device 600.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and modified within the scope of the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims below It will be appreciated that it can be changed.

As described above, the wireless karaoke system using the present invention portable terminal provides a karaoke function only with a simple wireless transmission and reception device, regardless of place or time, it is easy to carry, and requires labor cost and cost by moving. It also includes a silent control means for silently controlling the output from the portable terminal and the microphone, by varying the nature of the sound source (sends the audio signal of the portable terminal or only the audio signal of the microphone). It can provide such effects.

Claims (14)

In the wireless karaoke system using a portable terminal, A microphone for converting a voice signal into a wireless signal and transmitting the same; Transmitting means for modulating and transmitting the voice signal input through the microphone and the audio signal input through the portable terminal after mixing; And a receiving means for demodulating a modulated signal transmitted wirelessly from the transmitting means and outputting the demodulated signal to an audio device. The method of claim 1, The transmitting means includes an amplifier for amplifying the output of the microphone; A mixing unit for mixing the output of the portable terminal and the amplifier, A modulator configured to receive and output an output signal of the mixing unit; An output amplifier for amplifying and outputting an output signal of the modulator; On-line game service system using a wireless Internet, characterized in that configured to filter by removing the noise from the signal output from the output amplifier. The method of claim 1, In accordance with the content providing request from the portable terminal to download the data including the content over the wireless Internet, and when the new content is updated (update), characterized in that it comprises a download server for transmitting an update content message to the portable terminal; Wireless karaoke system using a portable terminal. The method of claim 2, The modulator comprises a plurality of signal modulation means for frequency tuning with the receiving means wireless karaoke system using a portable terminal. The method according to claim 1 or 2, The transmitting means is a wireless karaoke system using a portable terminal, characterized in that it comprises a silent control means for silently controlling the output from the portable terminal and the microphone. The method of claim 2, The transmitting means is a wireless karaoke system using a portable terminal, characterized in that for controlling the volume of the audio signal output from the audio device by transmitting a volume control signal according to the operation of the volume button of the portable terminal. The method of claim 1, The receiving means includes a filter for removing the noise of the signal received from the antenna and outputting; An amplifier for amplifying the output signal of the filter; A carrier remover for removing and outputting a carrier from an output signal of the amplifier; A demodulator for receiving an output signal of the carrier remover and demodulating the original signal; Wireless karaoke system using a portable terminal, characterized in that configured as an output amplifier for amplifying and outputting the output signal of the demodulator. The method according to claim 1 or 7, The receiving means is a wireless karaoke system using a portable terminal characterized in that it comprises a signal strength detecting means for outputting a signal indicating that the spaced apart when the intensity of the signal received from the transmitting means is less than the set threshold signal size. The method of claim 7, wherein The carrier eliminator includes a plurality of frequency selecting means for selecting a carrier frequency equal to the modulation frequency selected by the transmitting means to remove the carrier, wireless karaoke system using a portable terminal. The method of claim 2, And said transmitting means comprises automatic channel selecting means for moving to another good channel when the signal-to-noise ratio of the selected channel is poor in the set channel range. In the wireless karaoke system using a portable terminal, A microphone for converting a voice signal into a wireless signal and transmitting the same; Transmitting means for mixing the voice signal input through the microphone and the audio signal input through the portable terminal, converting the signal into a Bluetooth signal after the pulse code modulation (PCM) encoding process, and transmitting the mixed signal; Wireless karaoke system using a portable terminal, characterized in that the restoring process of the Bluetooth signal transmitted from the transmitting means, and then outputs to the audio device after the pulse code modulation (PCM) decoding process. The method of claim 11, The Bluetooth module embedded in the transmitting means includes a transceiver for demodulating and modulating a signal, and the Bluetooth module embedded in the receiving means includes a receiving unit for demodulating a signal. In the wireless karaoke system using a portable terminal, A microphone for converting a voice signal into a wireless signal and transmitting the same; After mixing the audio signal input through the microphone and the audio signal input through the portable terminal, a channel having a good signal-to-noise ratio within the set channel range is selected, and then according to the selected channel frequency. Wireless karaoke system using a portable terminal, characterized in that it comprises a transmitting means for performing a modulation process for transmission. In the wireless karaoke system using a portable terminal, Selecting a carrier frequency equal to the modulation frequency of the received radio signal to remove the carrier, and performing a demodulation process, the wireless karaoke system using a portable terminal, characterized in that it comprises a receiving means for outputting to the audio device.