KR100348652B1 - Apparatus for hearing audios signals in mobile communication system and method therefor - Google Patents

Abstract

Disclosed are a broadcast listening system and a method thereof in a mobile communication system capable of listening to a multi-channel broadcast signal. The present invention provides a broadcast signal receiving unit for receiving broadcast signals supplied from a plurality of cable broadcasting stations; An audio signal detector for extracting audio signals of a plurality of channels of the broadcast signal receiver; An analog / digital converter configured to convert the audio signals of the plurality of channels detected by the audio signal detector into digital data and output audio data of the plurality of channels; Analyzes the key tone signal input by the mobile terminal, and if the current mode state is the multi-channel listening mode, the selected channel among the audio data of the multiple channels output from the analog / digital changer according to the channel analyzed from the key tone signal. A control unit for generating a control signal for mixing audio data of the control unit; An audio data mixer configured to output mixed audio data obtained by mixing audio data of a selected channel among the audio data of the plurality of channels output from the analog / digital converter according to a control signal of the controller; And an audio output unit for transmitting the mixed audio data output from the audio data mixer to the mobile terminal through the switching center and the base station.

Description

Broadcast listening device and method according to the mobile communication system {APPARATUS FOR HEARING AUDIOS SIGNALS IN MOBILE COMMUNICATION SYSTEM AND METHOD THEREFOR}

The present invention relates to a broadcast listening device and a method thereof in a mobile communication system, and more particularly, to a broadcast listening device of a mobile communication system that enables to simultaneously listen to audio signals among broadcast signals of a plurality of cable broadcasting stations through a mobile terminal. And a method accordingly.

Recently, a large number of people carry a mobile communication terminal due to the rapid spread of mobile communication, and these mobile communication terminals provide additional services for providing various information in addition to a call function with a counterpart.

Such conventional mobile communication terminals cannot directly receive a broadcast signal transmitted from a cable broadcasting station even though various additional services are provided, and simply summarizes the received broadcast signal to broadcast using an answering service or a text message. I could receive the signal.

That is, in the existing mobile communication terminal, it is possible to receive a summarized broadcast signal using a text message or an answering service, but cannot simultaneously listen to the multi-channel audio signal transmitted from the broadcasting station.

Accordingly, the present invention was created to solve the above inconvenience, the present invention is to mix the audio signal of the multi-channel of the plurality of broadcast signals, and the mixed multi-channel audio signal to the mobile terminal through the audio output unit By transmitting, it is an object of the present invention to provide a broadcast listening system and method according to the mobile communication system that can further improve the convenience of the mobile terminal.

The broadcast listening device of the mobile communication system according to the present invention for achieving the above object,

A broadcast signal receiver for receiving broadcast signals supplied from a plurality of cable broadcast stations;

An audio signal detector for extracting audio signals of a plurality of channels of the broadcast signal receiver;

An analog / digital converter configured to convert the audio signals of the plurality of channels detected by the audio signal detector into digital data and output audio data of the plurality of channels;

Analyzes the key tone signal input by the mobile terminal, and if the current mode state is the multi-channel listening mode, the selected channel among the audio data of the multiple channels output from the analog / digital changer according to the channel analyzed from the key tone signal. A control unit for generating a control signal for mixing audio data of the control unit;

An audio data mixer configured to output mixed audio data obtained by mixing audio data of a selected channel among the audio data of the plurality of channels output from the analog / digital converter according to a control signal of the controller; And

And an audio output unit for transmitting the mixed audio data output from the audio data mixer to the mobile terminal through the switching center and the base station.

Preferably the broadcast listening method of the mobile communication system according to the present invention,

a) inputting a key tone signal for selecting a channel of a cable broadcasting station to be received using a mobile terminal;

b) analyzing the key tone signal input through step a); And

c) if it is determined whether the current multi-channel listening mode is a multi-channel listening mode, and tunes a plurality of channels according to the analysis result in step b), mixes audio data of the tuned multiple channels, and then mixes the audio data. It characterized by consisting of the step of transmitting to the mobile terminal through the switching center and the base station.

According to the present invention, it is possible to simultaneously listen to audio signals of a plurality of channels among a plurality of cable broadcast signals in real time, thereby further improving the convenience of the mobile terminal.

1 is a view showing the configuration of a mobile communication system according to the present invention.

2 and 3 are flowcharts illustrating a broadcast listening process according to the present invention.

<Explanation of symbols for main parts of drawing>

111: mobile terminal 113: audio output unit

131: broadcast signal receiver 133: audio signal detector

134: analog / digital converter 135: audio signal mixer

137: control unit 141: exchange station

143: base station

Hereinafter, the present invention will be described in more detail with reference to the following examples.

1 is a view showing a mobile communication system according to the present invention. As shown in the drawing, a mobile communication system to which the present invention is applied includes a mobile terminal 111, an audio output unit 113, a broadcast signal receiving unit 131, An audio signal detector 133, an analog / digital converter 134, a controller 135, an audio data mixer 137, an exchange station 141, and a base station 143 are provided.

The mobile terminal 111 selects a channel to be tuned from among a plurality of cable broadcast signals, selects a multichannel listening mode and a single channel listening mode, and is configured to receive one of the mixed audio data and the audio data. And a plurality of keys for selecting channel selection and mode.

Meanwhile, the broadcast signal receiver 131 receives a plurality of broadcast signals transmitted from a plurality of cable broadcast stations, and the audio signal detector 133 receiving the received plurality of broadcast signals receives only the audio signals among the plurality of broadcast signals. It is configured to output.

The analog / digital converting unit 134 receiving the audio signals of the multiple channels converts the audio signals of the multiple channels into digital signals and outputs audio data of the multiple channels.

The control unit 135 receiving the key tone signal supplied from the mobile terminal 111 analyzes the key tone signal, and when the current mode is the multi-channel listening mode, the first channel and the second channel according to the analysis result of the key tone signal. And select and store a channel, and generate a control signal for mixing audio data of the stored first and second channels. In addition, when the current mode is the single channel listening mode, the controller 135 tunes and stores the second channel according to the analysis result of the key tone signal, and generates a control signal for outputting the audio data of the stored second channel. It is provided to. Here, the key tone signal is a sound generated according to each key of the mobile terminal 111, the control unit 135 receives the sound and analyzes the frequency of the sound, according to the analysis of the frequency of the mobile terminal 111 Recognize the selected key among a plurality of keys.

The audio data mixer 137 receiving the control signal of the controller 135 mixes one of the mixed audio data and the audio data of the second channel mixed with the audio data of the first channel and the second channel of the controller 135. Output in accordance with the control signal.

The audio output unit 113 receiving one of the mixed audio data and the audio data transmits one of the input mixed audio data and the audio data to the mobile terminal 111 through the switching center 141 and the base station 143. do.

In the exemplary embodiment of the present invention, although the audio signal of the first channel and the second channel of the plurality of cable broadcast signals is provided at the same time, it may be provided to simultaneously listen to the audio of the multiple channels.

2 and 3 are flowcharts illustrating a process of receiving a broadcast signal of multiple channels according to an embodiment of the present invention. 2 and 3, a process of receiving a multi-channel broadcast signal according to the present invention will be described.

When the subscriber inputs a key tone signal for selecting one of channels and modes of a plurality of cable broadcasting stations (step 301), the control unit 135 receiving the input key tone signal transmits the key tone signal. The signal is analyzed (step 303). That is, the controller 135 receives a sound generated according to each key of the mobile terminal 111, analyzes the frequency of the sound, and recognizes the selected key among the plurality of keys of the mobile terminal 111 by analyzing the frequency.

The controller 135 checks whether the current mode is the multi-channel listening mode (step 305), and if it is determined that the current mode is the multi-channel listening mode, the key tone signal analyzed in the step 303 is first predetermined. Key, for example '' key, is checked (step 307).

If it is determined in step 307 that the selected key is a '' key, the second channel is set to the previous channel CH2-1 of the second channel CH2 (step 309).

In addition, if it is determined in step 307 that the selected key is not a `` key, it is checked whether the key analyzed in step 303 is a `` key, which is a second predetermined key (step 311), where '' If it is determined that the key, the second channel is set to the next channel (CH2 + 1) of the second channel (CH2) (step 313).

If it is determined that the key analyzed in step 311 is not the `` key, it is checked whether the key analyzed in step 303 is the third predetermined key '00' key (step 315). If it is determined that the key '00', the current multi-channel listening mode is converted to the single channel listening mode, and then step 301 is performed (step 317).

In step 315, if it is determined that the input key is not a '00' key, the second channel CH2 is set to the first channel CH1, and the key analyzed in step 303 indicates a channel. Since the number of channels is set, the number of input channels is set to the second channel CH2 (step 319).

The controller 135 generates a control signal for mixing audio data of the first channel and the second channel set in the steps 309, 313, and 319, and receives the control signal. 137 mixes the audio data of these two channels and outputs mixed audio data. The output mixed audio data is output through the audio output unit 139 and then moved through the switching center 141 and the base station 143. After the transmission of the mixed audio data is completed, the process proceeds to step 301 (step 321).

On the other hand, if it is determined in step 305 that the current mode is not the multi-channel listening mode, the controller 135 determines that the current mode is the single channel listening mode, and the key tone signal analyzed in the step 303 is It is checked whether it is a first predetermined key, e.g., '' key (step 323).

If it is determined in step 323 that the selected key is a '' key, the second channel is set to the previous channel CH2-1 of the second channel CH2 (step 325).

In addition, if it is determined in step 323 that the selected key is not the `` key, it is checked whether the key analyzed in the step 303 is a `` key, which is a second predetermined key (step 327), where '' If it is determined that the key, the second channel is set to the next channel (CH2 + 1) of the second channel (CH2) (step 329).

When it is determined that the key analyzed in step 327 is not the `` key, it is checked whether the key analyzed in step 303 is the third predetermined key '00' key (step 331), where: If it is determined that the key '00', the current single channel listening mode is converted to the multi channel listening mode, and then step 301 is performed (step 333).

In the step 331, if it is determined that the input key is not the '00' key, the key analyzed in the step 303 is the number of channels indicating the channel, and therefore, the number of input channels is set as the second channel CH2. (Step 335).

In addition, the control unit 135 generates a control signal for outputting audio data of the second channel set in the steps 325, 329, and 335, and the audio data mixer 137 receiving the control signal The audio data of this channel is output, and the output audio data is transmitted to the mobile terminal 111 through the audio output unit 139, the switching center 141, and the base station 143, and then proceeds to step 301 ( Step 337).

As described above, according to the present invention, since an audio signal of multiple channels can be simultaneously listened to in real time through the mobile terminal, the convenience of the mobile terminal can be further improved.

In addition, although the present invention has been described in detail with reference to the embodiments described above, the present invention is not limited thereto, and modifications and improvements are possible within the scope of ordinary knowledge of those skilled in the art.

Claims (7)

A broadcast signal receiver for receiving broadcast signals supplied from a plurality of cable broadcast stations; An audio signal detector for extracting audio signals of a plurality of channels of the broadcast signal receiver; An analog / digital converter configured to convert the audio signals of the plurality of channels detected by the audio signal detector into digital data and output audio data of the plurality of channels; Analyzes the key tone signal input by the mobile terminal, and if the current mode state is the multi-channel listening mode, the selected channel among the audio data of the multiple channels output from the analog / digital changer according to the channel analyzed from the key tone signal. A control unit for generating a control signal for mixing audio data of the control unit; An audio data mixer configured to output mixed audio data obtained by mixing audio data of a selected channel among the audio data of the plurality of channels output from the analog / digital converter according to a control signal of the controller; And And an audio output unit configured to transmit the mixed audio data output from the audio data mixer to a mobile terminal through an exchange station and a base station. The method of claim 1, wherein the control unit When the current mode state is not the multi-channel listening mode, the broadcast listening device of the mobile communication system, characterized in that for generating a control signal for outputting only the audio data of the selected channel of the audio data of the plurality of channels output from the analog / digital converter . The method of claim 2, wherein the audio data mixer And outputting audio data of a selected channel among the audio data of the plurality of channels output from the analog / digital changer according to a control signal of the controller. The method of claim 3, wherein the audio output unit And outputting the audio data output from the audio data mixer to be transmitted to the mobile terminal through the switching center and the base station. a) inputting a key tone signal for selecting a channel of a cable broadcasting station to be received using a mobile terminal; b) analyzing the key tone signal input through step a); And c) if it is determined whether the current multi-channel listening mode is a multi-channel listening mode, and tunes a plurality of channels according to the analysis result in step b), mixes audio data of the tuned multiple channels, and then mixes the audio data. Transmitting to the mobile terminal through the switching center and the base station. 6. The method of claim 5, further comprising: tuning the channel according to the analysis result in step b) and outputting audio data of the tuned channel when it is determined in step c) that the current channel is not in the multi-channel listening mode. And a broadcast listening method of a mobile communication system. The method of claim 5 or 6, wherein the step c) c-1) checking whether the key tone signal analyzed in step b) is the first predetermined key, and if it is determined that the first tone is the first predetermined key, setting the second channel as the previous channel of the second channel; c-2) When it is determined that the key selected in step c-1) is not the first predetermined key, it is checked whether the key analyzed in step b) is the second predetermined key, and when it is determined that the second predetermined key is the second predetermined key. Setting the second channel to a channel subsequent to the second channel; c-3) If it is determined that the key analyzed in step c-2 is not the second predetermined key, it is checked whether the key analyzed in step b) is the third predetermined key, and it is determined that the third predetermined key is determined. If the current multi-channel listening mode is converted to a single channel listening mode, the step proceeds to a); c-4) In step c-3, if it is determined that the input key is not the third predetermined key, the second channel is set as the first channel, and the channel analyzed in step b) indicates the channel. Determining the number and setting the number of input channels as the second channel; And c-5) after mixing the audio data of the first channel and the second channel set in one of step c-1), c-2), and c-4) and transmitting the mixed audio data to the mobile terminal; a) proceeding to step 301, the broadcast listening method of the mobile communication system.