KR19990058049A - Radio receiving device and method in mobile phone - Google Patents

Abstract

end. TECHNICAL FIELD OF THE INVENTION

Radio signal transmitting and receiving device of cellular phone and control method thereof

I. Technical Problems to be Solved by the Invention

A cell phone and a radio using the same, and a control method thereof

All. The point of the solution of the invention

A radio receiving apparatus using a cellular phone includes a control unit for controlling transmission and reception of voice signals of a mobile phone and controlling reception of a radio broadcast signal, a voice signal transmitting and receiving unit for processing voice signal transmission and reception of the mobile phone, And a switch for connecting the antenna to the radio broadcast reception unit in the radio broadcast signal reception mode under the control of the control unit and for interrupting the antenna at the lido broadcast reception unit in the voice call mode, Radio receiving device in mobile phone.

la. Important Uses of the Invention

Any cell phone device capable of listening to radio broadcasts.

Description

Radio receiving device and method in mobile phone

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a mobile phone transmitting and receiving apparatus and a control method thereof, and more particularly, to a radio broadcasting signal receiving apparatus and method.

Generally, a mobile phone is used to perform a voice call or transmit simple data, and is used as a necessity of a modern living person. People also carry radio equipment to listen to radio broadcasts, and they also have mobile phones to carry out calls at the same time. Thus, the user is required to have a device capable of listening to the radio with the mobile phone.

Accordingly, it is an object of the present invention to provide an apparatus and a control method thereof capable of receiving a radio broadcast using a cellular phone.

According to an aspect of the present invention, there is provided a radio receiver using a mobile phone, including a controller for controlling transmission / reception of voice signals of a mobile phone and controlling reception of a radio broadcast signal, a voice signal transmitting / A radio broadcasting receiver for receiving the radio broadcasting signal and converting the received radio broadcasting signal into a voice signal; and a controller for connecting the antenna to the radio broadcasting receiver in the radio broadcasting signal receiving mode under the control of the controller, And a switch for interrupting at the lid broadcast receiving unit,

When receiving a radio broadcast signal reception request key from a key input unit when receiving a radio broadcast signal in a cellular phone having the above configuration, connecting the switch to a radio broadcast signal reception unit, and transmitting a channel to be received according to a key input signal of the key input unit Receiving a radio broadcast signal of the selected channel and converting the received radio broadcast signal into a voice signal and outputting a ringer tone when the ring signal is received by the voice signal transmitting and receiving unit during reception of the radio broadcast signal, And performing a call mode when a call key input signal is received from the key input unit while the ring signal is being received.

1 is a block diagram of a cellular phone according to an embodiment of the present invention;

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

1 is a block diagram of a mobile phone according to an embodiment of the present invention.

The control unit 111 performs control according to the overall control phone operation during voice communication, and particularly controls the reception of the radio broadcast signal according to the present invention. First, the configuration and operation of a voice signal transmitting / receiving unit for performing voice communication through voice signal transmission / reception will be described. The duplexer 112 outputs a signal received from the antenna ANT to the RF receiving unit 113, and outputs a signal for transmission received from the RF transmitting unit 115 through the antenna ANT. The frequency synthesizer 114 generates a reception carrier signal under the control of the controller 111, outputs the reception carrier signal to the RF receiver 113, generates a transmission carrier signal, and outputs the transmission carrier signal to the RF transmitter 115. The RF receiver 113 combines the received signal received from the duplexer 112 and the signal received from the frequency synthesizer 114 to extract a predetermined signal, and outputs the extracted signal to the first demodulator 116. The first foot 116 demodulates the signal received from the RF receiver 113 and outputs the demodulated signal to the voice processor 118. The voice processor 118 outputs the signal received from the first demodulator 116 as an audible sound through the speaker SPK. In addition, the voice processing unit 118 converts the electrical signal received from the microphone MIC into a PCM signal in a call mode, and outputs the signal to the modulation unit 117. The modulator 117 modulates the phishem data according to the control of the controller 111 or demodulates a dial signal according to the dial data received from the controller 111 and outputs the demodulated dial signal to the RF transmitter 115. The RF transmitter 115 combines the signal received from the frequency synthesizer 114 and the signal received from the modulator 117 and outputs the combined signal to the duplexer 112.

The display unit 119 displays the operation process and the current state of the mobile phone under the control of the controller 111, and in particular, displays the frequency band of the listen broadcast when listening to the radio broadcast signal according to the present invention. The key input unit 120 has a key matrix structure (not shown), generates a key input signal corresponding to a key input by the user, and outputs the key input signal to the control unit 111. The memory unit 121 is divided into a control data memory (not shown) for storing control data required for the operation of the controller 111 and a data memory (not shown) for temporarily storing data generated when the mobile phone is controlled. The control data memory stores control data necessary for operation of the cellular phone, and also stores control data for radio broadcast reception according to the present invention.

The switch S / W1 connects or disconnects the antenna ANT to the radio broadcast signal receiving unit under the control of the controller 111. [

Next, a configuration and operation of a radio broadcast signal receiving unit for receiving a radio broadcast signal and demodulating and outputting it as a voice signal will be described. The linear amplifier 122 receives a radio broadcast signal received from the antenna ANT, linearly amplifies the signal, and outputs the linearly amplified signal to the radio band filter 123. In addition, the linear amplifier 122 adjusts the amplification degree of the broadcast signal under the control of the controller 111. The radio band filter 123 receives and filters the radio signal received from the linear amplifier 122, and outputs the filtered signal to the first combining unit 124. The first combining unit 124 combines a signal received from the RF band filter 123 and a signal received from the first PLL 125, and outputs the combined signal to an intermediate frequency processor 126. The first PLL unit 125 generates a signal for outputting a frequency to be heard by the user under the control of the control unit 111, and outputs the signal to the first combining unit 124. The intermediate frequency processing unit 126 amplifies the signal of the listening frequency extracted by the combining unit 124, and outputs the signal to the second combining unit 127. The second combining unit 127 combines the signal received from the intermediate frequency processing unit 126 and the signal received from the second PLL 128, and outputs the combined signal to the second demodulation unit 129. The second demodulator 129 demodulates the received data and outputs the demodulated data to the second audio processor 130. The output signal of the second audio processing unit 130 determines the output of the sound signal according to the sound signal adjustment data received from the sound signal adjustment unit 132. The sound signal controller 132 outputs the sound signal to the sound signal controller 132 in response to a key input signal received from the keypad 120. The second audio processing unit 130 determines an output sound according to the signal demodulated and received by the second demodulating unit 129 and the output value determined by the sound signal adjusting unit 132, and outputs the output sound to the earphone connecting unit 131.

FIG. 2 is a control flowchart for receiving a radio broadcast signal in a cellular phone according to a preferred embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to FIG. 1 and FIG.

The controller 111 maintains a standby state in step 200 and proceeds to step 202 to check whether a key input signal of a radio reception key for receiving a radio broadcast signal from the key input unit 120 is received. If the radio reception key is input, the controller 111 proceeds to step 204. If the radio reception key is not input, the controller 111 performs a corresponding function. In step 202, the controller 111 turns on the switch S / W and outputs a request message requesting the display unit 119 to input a radio channel. A channel selection signal corresponding to the key input signal received from the key input unit 120 and a channel selection control signal corresponding to the channel selected by the first PLL 125. If the selection of the channel is completed in step 204, the controller 111 proceeds to step 206 and proceeds to the radio reception mode. At this time, the input of the channel may be performed by storing the channel data corresponding to the numeric key in the memory unit 121, and selecting the channel data by reading the stored channel data. Table 1 shows the channel data stored corresponding to the number keys.

Numeric keys channel One 89.1MHz 2 91.9Mhz 3 93.1MHz ... ...

Table 1 is referred to as a channel table. The controller 111 can select a channel corresponding to the number key when inputting in the setting mode at the time of the channel selection, select a channel by inputting a number key in the normal mode instead of the setting mode, And can be selected corresponding to the direction key or the volume control key.

When the selection of the channel is completed, the controller 111 displays the selected channel on the display unit 119 and proceeds to the radio reception mode in step 206. [ The control unit 111 controls the radio broadcast signal receiving unit to receive the radio signal with the value of the selected channel in the radio receiving mode. The controller 111 performs the radio receiving mode. In step 208, step 210, step 212, the controller 111 checks whether a channel change signal, a radio-off signal, and a ring signal are received from the first demodulator 116, from the key input unit 120. When the channel change signal is received from the key input unit 120, the controller 111 proceeds from step 208 to step 226. In step 210, when a radio off signal is received, the controller 111 proceeds to step 200, The process proceeds to step 214.

In step 208, when the key input signal is received from the key input unit 120 and the channel change signal is received, the controller 111 receives channel data corresponding to the key input signal received from the key input unit 120 And proceeds to step 228 to set the channel. If the channel is set in step 228, the controller 111 proceeds to the radio reception mode of step 206. [

If the radio OFF signal is received from the key input unit 120 in step 210, the control unit 111 proceeds to a standby state in step 200. [

On the other hand, if the ring signal is received in step 212, the control unit 111 proceeds to step 214 to turn off the switch S / W and terminate the radio reception mode. In step 216, the controller 111 outputs a ringer tone. In step 218, the controller 111 determines whether a call key input signal is received from the key input unit 120. If the call key is input, the controller 111 proceeds to step 220 and performs a call mode. If the call key is not input, the controller 111 proceeds to step 224. In step 224, In step 218, the controller 111 determines whether a ring signal is received from the first demodulator 116 in step 224. If the ring signal is not received, the controller 111 proceeds to step 204. If the ring signal is not received, In step 218, the controller 111 performs a call mode when it proceeds to step 220. In step 222, the controller 111 determines whether a call is terminated. The control unit 111 checks whether a key input signal corresponding to the termination of the call is received from the key input unit 120. [ The controller 111 proceeds to step 204 when the key input signal corresponding to the termination of the call is received. If the key input signal according to the termination key is not received, the controller 111 continues the call mode.

The controller 111 also stores the data of the radio channel being received in the memory unit 121 when the radio off signal is received in step 210 or when the ring signal is received in step 212. [ Therefore, if there is a request to receive the next radio broadcast signal, the controller 111 reads the radio channel data stored in the memory unit 121 in step 204 and selects a channel first.

As described above, there is an advantage in that the cellular phone does not have to carry both devices by receiving the radio broadcast signal and receiving the radio broadcast. In addition, since you can listen to radio broadcasts with the purchase of mobile phones, you do not have to buy both devices.

Claims (7)

A radio receiving apparatus using a cellular phone, A controller for controlling transmission and reception of voice signals of the mobile phone and controlling reception of a radio broadcast signal, A voice signal transmitting / receiving unit for processing voice signal transmission / reception of the mobile phone, A radio broadcast receiving unit for receiving the radio broadcast signal and converting the received radio broadcast signal into a voice signal; And a switch for connecting an antenna to a radio broadcast receiving unit in a radio broadcast signal receiving mode under the control of the controller and for blocking the antenna at the loud-speaker broadcast receiving unit in the voice call mode. The method according to claim 1, Further comprising an earphone connection unit for receiving a voice received through the antenna and converted into a voice signal. 3. The method according to claim 1 or 2, And a display unit for displaying a frequency of a broadcast signal received in the radio broadcast signal receiving mode. A switch for connecting the antenna to the radio broadcast signal receiver when receiving a radio broadcast signal, a switch for connecting the antenna to the radio broadcast signal receiver, A method for receiving a radio broadcast signal in a mobile phone having a key input unit for requesting reception of a broadcast signal and a control unit for controlling the radio broadcast and voice call, Connecting the switch to a radio broadcast signal receiving unit when a radio broadcast signal receiving request key is inputted from a shuffle key input unit, Selecting a channel to be received according to a key input signal of the key input unit, receiving and demodulating a radio broadcast signal of the selected channel, Outputting a ringer tone when the ring signal is received by the voice signal transmitting / receiving unit during reception of the radio broadcasting signal, and turning off the switch to stop receiving the radio broadcasting signal; And performing a call mode when a call key input signal is received from the key input unit while the ring signal is being received. 5. The method of claim 4, Storing the received broadcast channel in a memory unit when a ring signal is received by the voice signal receiver, When the call is terminated, reading the broadcast channel stored in the memory unit from the memory unit and connecting the switch to the broadcast signal receiving unit, continuously receiving, modulating and modulating the received radio broadcast signal, converting the received broadcast signal into a voice signal, Wherein the mobile phone is a mobile phone. The method according to claim 4 or 5, Changing a channel corresponding to a key input by a user when a channel change request key input signal is received from the key input unit in the radio broadcast signal receiving mode; And changing a broadcast signal receiving channel of the broadcast signal receiving unit when the changed channel is selected. 6. The method of claim 5, When a call request key input signal is not received from the key input unit until reception of the ring signal is terminated when the ring signal is received and the switch is turned off and a ringer sound is output, And receiving the broadcast signal while the switch is turned on to continuously receive the broadcast signal.