KR20050093522A - A mobile terminal with speed-light and broadcasting receiver module - Google Patents

Abstract

The present invention relates to a mobile communication terminal, and more particularly to a mobile communication terminal providing a multimedia function.

According to the present invention, since most of the circuits necessary for the reception of the airwave broadcasting and the photographing by the camera are detachably implemented, the main body can be maintained at the same level as that of the existing terminal. There is an advantage that can be applied to a variety of models, such as CDMA, cellular methods, and further.

A mobile communication terminal according to a characteristic aspect of the present invention is detachably coupled to a main body, and provides a suitable light amount for indoor or night photographing to be used to photograph a subject, and a TV signal or FM from a broadcast signal received over the airwaves. It characterized in that it comprises all of the broadcast receiver for extracting and outputting a radio signal. According to an advantageous aspect of the present invention, the camera unit and the broadcast receiver output the same type of image data, which are configured to alternatively be processed by a single signal processing unit.

Description

Camera phone with reproduction and flash function of over-the-air broadcasting signal {A mobile terminal with speed-light and broadcasting receiver module}

The present invention relates to a mobile communication terminal, and more particularly to a mobile communication terminal providing a multimedia function.

With the expansion of mobile communication terminals, technology in this field is developing. Due to consumer demand and competition among companies, various functions are being added every day.

Terminals equipped with cameras have become popular enough to occupy a large part of terminals that are newly introduced in recent years. In addition, recently, a mobile communication terminal with a TV viewing function has been released. This trend, together with the increase in memory capacity, is accelerating the personalization of mobile devices.

It is generally known that the TV signal and the FM radio signal have similar frequency bands, so that the TV receiver can listen to the FM radio signal. However, there is a problem that only the antenna is shared, so that the switching of signals is performed at the RF stage, thereby reducing the reception sensitivity by the loss of the RF switch.

In addition, in the case of a terminal having a TV viewing function, which is commonly referred to as a "TV", the terminal parts and TV function-related parts are implemented on a single printed circuit board, so that the overall size is compact, but the size of the terminal body Compared to the conventional terminal, the TV has a problem that the TV signal interferes with the RF circuit for voice and data communication.

However, in a terminal with emphasis on portability, implementing such many functions requires not only a physical problem of securing a necessary space in the terminal but also an efficient architecture for proper control between systems. In addition, designing a new system architecture each time, due to frequently added features, has been very inefficient in terms of cost and time.

SUMMARY OF THE INVENTION The present invention has been drawn from such a background, and an object thereof is to provide a mobile communication terminal having a detachable broadcast receiving module that not only enables the reception of airwave broadcasting but also provides a flash function of a camera.

Furthermore, an object of the present invention is to provide a detachable mobile communication terminal including a flash function as well as minimizing radio interference between a component related to an airwave broadcasting reception function and a component for voice and data communication.

Furthermore, an object of the present invention is to provide a compact mobile communication terminal capable of watching TV and listening to radio while reducing the size of the main body.

Furthermore, an object of the present invention is to propose a system architecture that operates efficiently in a mobile communication terminal having an airwave reception and a flash function of a camera.

In addition, an object of the present invention is to propose a compact system architecture capable of uniform and systematic control between modules in a terminal.

It is further an object of the present invention to present a system architecture that is easy to design upon addition of new functional modules.

The mobile communication terminal according to an aspect of the present invention for achieving the above object is a broadcast receiving unit for extracting and outputting the video signal or audio signal from the TV signal or FM radio signal received over the air, and during indoor or night shooting through the camera A broadcast receiving module including a flash that provides an appropriate amount of light is detachably coupled to the main body.

According to this aspect of the present invention, since most circuits necessary for the TV function are detachably implemented, the main body can be maintained at the same level as that of the existing terminal. In addition, as a single TV receiving module, for example, GSM, CDMA In addition, there are advantages that can be applied to various models, such as a cellular method, and to various models. In addition, the camera unit and the broadcast receiving unit output image data of the same type, which are configured to be selectively processed by a single signal processing unit.

Therefore, the terminal according to the present invention, in adding a TV reception function to the existing camera phone, it is possible to efficiently operate the entire system while minimizing the existing hardware to minimize the number of newly added parts.

Furthermore, the mobile communication terminal according to an additional aspect of the present invention enables the media data in the terminal to be formatted in a single format so that it can be physically distributed on the same bus and can be handled logically by the same processing. Furthermore, each functional module is accessible by the main module via the control bus, so that individual functions in each module can be controlled by the main module.

According to this aspect of the present invention, the mobile communication terminal according to the present invention is capable of unified control of the modules constituting the entire system, and furthermore, the hardware design becomes very simple since it only needs to be incorporated into the bus when a new module is added. In addition, it is possible to present a standard basic structure in software design.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce the present invention.

1 illustrates an appearance of a mobile communication terminal according to an exemplary embodiment of the present invention. As shown, the mobile communication terminal according to the present embodiment includes a broadcast receiving module 10 detachably manufactured and a mobile communication terminal main body 20. The broadcast receiving module 10 and the main body 20 are connected through a connector. The broadcast receiving module 10 is provided with an antenna for receiving airwaves in itself.

2 is a block diagram schematically showing the configuration of a mobile communication terminal according to an embodiment of the present invention. As shown, the mobile communication terminal according to the present embodiment includes a phone control unit 100 and its subcircuits, a camera unit 400, and a broadcast receiving module detachably attached to a main body. 300 and the signal processing unit 500 are configured.

The accessory circuits include a keypad 210, a display unit 220 for displaying a menu, an operation state, and a TV video signal received and output by the broadcast receiving module, and a radio for extracting voice and data signals from a radio signal transmitted and received through an antenna. The communication unit 230 and a voice input / output circuit 240 for inputting and outputting a voice call signal from the wireless communication unit 230 through a microphone and a speaker.

The keypad 210 and the display unit 220 which is a liquid crystal display device may have a conventional well-known configuration. In addition, the wireless communication unit 230 is configured to include an antenna and RF circuit for communication with the base station. In the present specification, the wireless communication unit 230 is interpreted to cover not only various versions of CDMA but also existing methods such as cellular, GSM, and W-CDMA, as well as mobile communication methods to be introduced in the future. The voice input / output circuit 240 is a well-known configuration that processes digital voice data into an analog voice signal or vice versa, and includes an additional circuit such as an audio amplifying circuit or a filter.

The baseband circuit of the wireless communication unit 230 and most of the circuits of the phone control unit 100 are commercially provided as a single integrated circuit. This integrated circuit, commonly referred to as an MSM chip, includes dedicated hardware to process communications therein, a digital signal processor and a general purpose microprocessor. Logically, these include a communication control unit 110 for controlling voice and data communication, and a system control unit 120 for controlling the entire system according to an operation signal or an operation state input from the keypad 210. The system controller 120 supports a convenient application environment such as a virtual machine, and can process various controls according to a characteristic aspect of the present invention by a program.

The system controller 120 may interface with external ICs through a serial bus such as an I ² C bus to control them. When an operation command is input from the user through the operation unit or an event such as a call reception occurs, the system controller 120 issues a necessary control command.

The camera unit 400 converts an optical signal input from the lens system into an electrical signal and outputs the electrical signal. The image signal output by the camera unit 400 is image-processed by the signal processor 500 and output to the display unit 220 provided in the terminal.

The broadcast receiving module 300 is provided with an antenna for receiving an over-the-air broadcast signal, and the broadcast receiving unit 310 demodulates the over-the-air broadcast signal received from the antenna and outputs an image and audio signal of a TV signal and an audio signal of an FM radio. ). The video signal output from the broadcast receiving unit 310 is processed by the signal processing unit 500 and displayed on the display unit 220.

According to a characteristic aspect of the present invention, the detachable broadcast receiving module 300 according to the present invention further includes a flash 320. The flash 320 provides a convenient light amount when photographing a subject, thereby providing convenience to a user when photographing indoors or at night.

The signal processor 500 may generate one of a first video signal output from the camera unit 400, that is, a video signal of a photographed subject, and a second video signal output from the broadcast receiver 310, that is, a video signal of a TV. In accordance with the control signal of the control unit 120 is processed alternatively and output to the display unit 220.

3 is a block diagram illustrating the embodiment of FIG. 2 in more detail. As shown, the mobile communication terminal according to an embodiment of the present invention extracts and outputs an image signal and an audio signal from a TV signal or an FM radio signal received over the air, and a flash 320 that provides an appropriate amount of light when shooting. The broadcast receiving module 10 and the camera unit 400 converts and outputs an optical signal input from the lens system 410 into an electrical video signal, and a first video signal output from the camera unit 400. And an audio output for converting an audio signal output from the signal processing unit and the audio signal output from the broadcast receiving unit 310 into an audible sound by selectively processing one of the second image signals output from the broadcast receiving unit 310 and outputting it to the display unit 220. The unit 260 is included.

The broadcast receiver 310 first demodulates a TV signal or an FM radio signal received from an antenna in a common RF stage, and then selectively processes the TV signal or the FM intermediate frequency processor according to the selection control of the system controller 120. The demodulated video signal is output to the signal processor 500, and the demodulated TV or radio audio signal is output to the audio output unit 260. The video signal is decoded and output in a digital form, and the audio signal is output as an analog signal and amplified by the audio output unit 260. The audio output unit 260 selectively outputs various reproduction sounds such as a ring tone reproduction circuit in the terminal under the control of the system controller 120.

Flash 320 is a camera accessory that uses a discharge light generated instantaneously when a high-pressure direct current flows through a xenon discharge tube as a light source for photographing. It is generally called a strobe, but it is a brand name, electronic flash, and speed flash. Also called. As a power source, a stacked battery is used to boost the required high voltage. The types include clip on types of guide numbers GN 14 to 30 and clip types of GN 30 to 50. The emission time is very short, such as 1 / 1,000 seconds, and is very bright as white light (natural light), and thus serves as a main light source of artificial light. In addition to photography, short flash time is used in various fields, such as lighting of aviation lighthouses, measurement of the lifetime of semiconductors such as silicon, and measurement of reflection response of a tachometer or brain.

Flash 320 according to an embodiment is a charging unit 321 for temporarily charging the power supplied from the battery of the mobile communication terminal, and a light emitting unit for converting and dimming the electrical energy charged in the charging unit 321 to light instantaneously 322. The flash 320 may provide an appropriate amount of light through the light emitter 322 according to a control signal of the system controller 120 to facilitate indoor or night photographing.

The camera unit 400 includes a lens system 410, an imaging unit 420 for converting an optical signal from the lens system 410 into an analog electric signal, and a digital signal for processing and converting a signal output from the imaging unit 420. The conversion unit 430 converts a format suitable for the input of the post-signal processing unit 500 and a camera control unit 440 for controlling the operation of the entire module.

The lens system 410 is composed of one or more small lenses, and collects and supplies light to the imaging unit 420. The imaging unit 420 is generally composed of a CMOS imaging device or a CCD imaging device, and is a known device that converts light into an electrical signal for each pixel and sequentially outputs the light in synchronization with a clock. The converting unit 430 converts the current or voltage proportional to the image brightness output from the image capturing unit 420 into digital data through some processing, and converts the data value into a YUV format for output. In another embodiment, the conversion unit 430 may further include a codec for compressing the captured image in the JPEG format or the MPEG format, as in the known camera module.

The signal processing unit 500 was originally developed by the present applicant for signal processing of a camera phone, and according to the characteristic structure of the present invention, the signal processing unit 500 was also adopted as it is without any special structural change. In addition, it is a characteristic advantage of the present invention that the existing signal processing unit 500 for the camera unit 400 can be used in common without adding a separate signal processing module for the broadcast receiving unit 310.

Hereinafter, the broadcast receiver and the signal processor 500 according to the present invention will be described in more detail. As shown, the broadcast receiver 310 includes a tuner 311 and a decoder 312 for decoding a video signal output from the tuner 311 and outputting the video signal in a reference format.

In one embodiment, the broadcast receiving unit 310 includes a tuner unit 311 for demodulating the radio broadcast signal received from the antenna, a decoder unit 312 for decoding the demodulated broadcast signal and outputting it as digital data, and from the outside. Receiving control unit 313 for controlling the operation in accordance with the control command signal of the. The broadcast receiver 310 includes an antenna for receiving an over-the-air signal. This antenna may exist separately from the antenna for mobile communication, or in the case of a strip patch antenna type, may be physically shared as one antenna.

According to a characteristic aspect of the present invention, the mobile communication terminal further includes an audio output unit 260 for outputting an audio signal output from the broadcast receiving unit 310 as an audible sound, and the broadcast receiving unit 310 is connected to the tuner unit 311. The apparatus may further include an audio processor 314 for processing the output audio data and outputting the audio data to the audio output unit 260. At this time, the audio signal of the television signal demodulated by the tuner unit 311 is directly supplied to the audio output unit 260 in analog form. The video output unit 260 may include a delay circuit for delaying the output audio signal in consideration of the delay required to be processed by the signal processor 500 and transmitted to the external device and reproduced by the external device.

The tuner unit 311 may be one of the existing analog broadcast tuners such as NTSC and PAL, or a common tuner supporting all of them. In another embodiment, the tuner 311 may be a multimedia broadcasting for mobile communication such as a satellite based digital multimedia broadcasting (DMB) scheme or a wireless LAN based multimedia broadcasting.

The signal processor 500 may include a media interface 510 that receives an image signal from the broadcast receiver 310, an image processor 520 that processes a Youngshin signal input from the media interface 510, and an image processor ( The image output unit 530 converts the image signal processed by the image into display data to the display unit 220, and converts the image signal processed by the image processor 520 into a digital image data format. It includes an external device interface unit 357 for outputting.

The media interface unit 510 receives 8-bit image data in YUV format and buffers it in internal memory. The image processing unit 520 converts the progressive scan type TV signals into a sequential scan method, interpolates and / or scales them to fit the resolution of the display device, and further scales them to internal memory. A codec is included for storing or decompressing image data. In one embodiment, the codec includes an MPEG encoder / decoder and a JPEG encoder / decoder for compressing, storing and reading the captured image frame as a still image. These are implemented by the DSP and the core. In addition, the image processor 520 may include a sharpness enhancement circuit for improving image quality, and a contrast and contrast control function. You can even include some simple filter functions to give you graphical effects.

In an exemplary embodiment, the image output unit 530 outputs the image data output directly from the media interface unit 510 or from the image processor 520 to the display unit 220 in a 16-bit RGB data format. In the present embodiment, the image received by the broadcast receiving unit 310 may be compressed in the MPEG method by the image processing unit 520 and stored in an internal mass memory (not shown).

According to a characteristic aspect of the present invention, the signal processor 500 controls the operation of the broadcast receiver 310 or the flash 320 using a serial bus. In one embodiment, the serial bus is an I ² C bus. Also called Inter-IC, I ² C is a two-wire, bidirectional serial bus that provides a communication link between integrated circuits. Philips introduced the I ² C bus 20 years ago for mass production products such as TVs, VCRs and audio equipment.

In the present invention, the video signal inside the terminal is distributed on the bus in a single format, which in one embodiment is the YUV format. Therefore, each image processing module converts the internal output into YUV format and outputs the internal input. The interface configuration with the outside will be described later in detail.

In the present embodiment, the broadcast receiver 310 and the signal processor 500 are also provided in a single package. The broadcast receiver 310 is configured as a package including several IC modules therein. The signal processor 500 includes a single IC package or a digital signal processor, internal memories, interface modules, and a microprocessor.

4 is a block diagram schematically showing an embodiment of the tuner unit 311. In the illustrated embodiment, the wireless broadcast signal received from the antenna is separated into a signal of the UHF band and a signal of the VHF band, respectively, through the UHF filter 611 and the VHF filter 612. Signals in each band are filtered through their respective Low Noise Amplifiers (LNAs) 613 and 614. The filtered signal is supplied to the PLL IC 617 to select a signal for each channel according to a channel tuning command, mixed with a local oscillator and demodulated into an intermediate frequency signal. At this time, the local oscillation frequency for each signal is supplied from a voltage controlled oscillator (615, 616) for each band. The oscillation frequencies of these oscillators are controlled by the reception control section 313 of FIG. 3 which controls channel tuning.

According to a characteristic aspect of the present invention, the tuner unit 311 selectively supplies a TV intermediate frequency (IF) signal and an FM intermediate frequency signal output from the RF demodulator 600 to the intermediate frequency signal processor 625. A frequency (IF) switch 621.

In addition, an image intermediate frequency (VIF) amplifier for amplifying the TV intermediate frequency signal of the intermediate frequency switch 621, an image intermediate frequency filter for filtering an output of the image intermediate frequency amplifier and supplying the intermediate frequency signal processor to the intermediate frequency signal processor; And an FM intermediate frequency (AIF) amplifier for amplifying the FM intermediate frequency signal of the intermediate frequency switch, and an FM intermediate frequency filter for filtering the output of the FM intermediate frequency amplifier and supplying the intermediate frequency (IF) signal processor.

The first demodulated intermediate frequency signal is supplied to an intermediate frequency (IF) switch 621. The IF switch 621 switches the input intermediate frequency signal to the VIF amplifier 622 in the TV broadcast reception mode under the control of the reception controller 313 of FIG. 3, and inputs the intermediate frequency signal in the FM broadcast reception mode. Is switched to the AIF amplifier 623 and supplied. These are supplied to the IF signal processor 630 through the respective intermediate frequency amplifiers 622 and 623 and the intermediate frequency filters 624 and 625.

The supplied intermediate frequency signal is second demodulated by the IF signal processor 630 and output to the video output unit 626 and the audio output unit 627 as analog video signals and audio signals, respectively. In this case, the TV voice output and the radio voice output are mixed in the IF signal processor 630 and output to the voice output unit 627. In this case, the IF signal processor is controlled by the reception controller 313 of FIG. 3 that controls channel tuning. In addition, the output level of the audio output unit 627, that is, the volume, is also controlled by the reception control unit 313 of FIG.

In one embodiment, the decoder 312 generates and outputs a digital YUV signal from the analog video output of the video output unit 626. The operation of the decoder unit 312 is controlled by the reception control unit 313.

5 is a block diagram illustrating in more detail the configuration of the IF signal processor of FIG. 4. As shown, the IF signal processor 630 is a TV intermediate frequency signal processor for outputting a video signal and an audio signal by intermediate frequency demodulation of the TV intermediate frequency (IF) signal output from the RF demodulator 600, the RF demodulation An FM intermediate frequency signal processing unit for demodulating the FM intermediate frequency signal output from the grandmother 600 and outputting it as a voice signal, and a voice output for outputting a voice signal of the TV intermediate frequency signal processing unit or the FM intermediate frequency signal processing unit. A portion 639 is included.

The TV intermediate frequency signal processing unit receives an image IF signal and pre-amplifies the image preamplifier 631, a VIF phase locked loop (PLL) unit 633 for demodulating the pre-amplified image IF signal into a baseband signal, and demodulation. And a voice trap unit 637 which extracts a voice signal from the received signal and supplies it to the voice output unit 639. The VIF PLL 633 outputs a control signal to the FM IF AGC (Automatic Gain Controller) 635 which automatically adjusts the gain of the preamplifier.

The FM intermediate frequency signal processor includes an FM preamplifier 632 for receiving and preamplifying the FM IF signal, an FM IF phase locked loop (PLL) unit 634 for demodulating the preamplified FM IF signal into a baseband signal, The FM narrowband demodulator 638 extracts a speech signal from the baseband signal through FM demodulation and supplies the speech signal to the speech output unit 639. The FM IF PLL 634 outputs a control signal to the FM IF AGC (Automatic Gain Controller) 636 which automatically adjusts the gain of the preamplifier 632.

Hereinafter, a control configuration of the camera unit 400 and the broadcast receiving unit 310 of the signal processing unit 500 serving as a host in media signal processing will be described in detail.

According to a characteristic aspect of the present invention, the camera unit 400 may include a chip selector 460 that receives a chip select signal of the external chip controller 540 of the signal processor 500, and a serial bus from the signal processor 500. The bus controller 450 that receives the control signal and the camera controller 440 that controls the operation of the entire camera unit 400 according to the control signals received from the chip selector 460 and the bus interface 557. Include.

According to a characteristic aspect of the present invention, the broadcast receiver 310 includes a chip selector 316 for receiving a chip select signal from an external chip controller 540 of the signal processor 500, and a serial bus from the signal processor 500. A bus interface unit 315 for receiving a control signal, and a reception controller 313 for controlling an operation according to control signals received from the chip selector 316 and the bus interface unit 773.

According to a characteristic aspect of the present invention, the flash 320 may include a chip selector 325 for receiving a chip select signal of the external chip controller 540 of the signal processor 500 and a power supplied from a battery of a mobile communication terminal. Serial bus control from the charging unit 321 for temporarily charging, the light emitting unit 322 for converting and dimming the electrical energy charged in the charging unit 321 into light, and the system control unit 120 of the phone control unit 100. A bus interface unit 324 for receiving a signal, and a flash control unit 323 for controlling the operation of the light emitting unit 322 according to the control signal received from the bus interface unit 324.

When the flash control unit 323 receives a command to use the flash 320 through the bus interface unit 324, the power control unit 323 connects the power supplied from the battery of the terminal to the charging unit 321, and the charging unit 321 supplies the supplied power. Temporarily charge. When the set power is charged in the charging unit 321, the flash control unit 323 transmits a signal for completing the charging to the system control unit 120 through the bus interface unit 324. When the user inputs a photographing signal, such as pressing a predetermined button on the keypad 210 of the terminal, the system controller 120 flashes the flash controller 323 to the flash controller 323 through a serial bus such as I ² C. 320, the driving command is transmitted, and the flash controller 323 instantly converts the electrical energy charged in the charger 321 through the light emitter 322 into light to adjust the light.

According to a characteristic aspect of the present invention, the signal processing unit 500 may include a media interface unit 510 that alternatively receives a first image signal from the camera unit 400 or a second image signal from the broadcast receiving unit 310. An external chip controller 540 for selectively selecting the camera unit 400 and the broadcast receiving module 10, a bus interface unit 550 controlling the operation of the camera unit 400 and the broadcast receiving unit 310; The controller 560 controls the external module through the external chip controller 540 and the bus interface 550.

In this case, according to an additional aspect, the control unit 560 of the signal processing unit 500 may separately access the tuner unit 311 and the decoder unit 312 of the broadcast receiving unit 310 by assigning a plurality of addresses to the bus interface unit 550. To control.

In an embodiment, the external chip controller 540 and the chip selectors 316, 325, and 460 operate by chip select logic. The external chip controller 540 may alternatively select the camera unit 400, the broadcast receiver 310, or the flash 320. Each chip selector 571, 771 detects this signal and prepares each control for operation.

Once one module is selected by the external chip controller 540, the controller 560 of the signal processor 500 sets the operating environment of each module through the bus interface 353 or the bus interface ( 550 controls the operation of each module. In one embodiment, the communication interface of bus interface portions 315, 324, 450, 550 is an I ² C bus. In one embodiment, one address is assigned to each of a camera operation 400, a brightness control operation, a resolution, and the like, and one address is provided for each channel selection, audio output level, and decoder operation in the broadcast receiver 310. One address may be assigned to each of the power charged in the charging unit 321, the light emission time of the light emitting unit 322, and the intensity of light in the flash 320.

The controller 560 records a control command at these addresses through the bus interface 550 to photograph the camera, adjust the brightness of the camera, set the use of the flash 320 when capturing the captured image, or the captured image. You can control the operation, such as setting the resolution. In addition, the control unit 560 controls the operation of changing the channel of the TV and FM radio, adjusting the volume, or changing the format of the output image by recording control commands to these addresses through the bus interface unit 353. can do.

The video signal output from the camera unit 400 through the converter 430 or the video signal output from the decoder 312 of the broadcast receiver 310 by the control is a signal of the same 8-bit YUV format. Input from the media interface unit 510 of the 500 may be processed by the same image processing unit 520 or the image output unit 530.

As described in detail above, the terminal according to the present invention not only enables the reception of the airwave broadcasting but also implements the broadcast receiving module 10 having a flash function of the camera in a detachable manner, thus making the main body compact. By adopting antenna and RF band circuit, TV signal reception and FM radio reception are possible, which saves space and reduces manufacturing costs.

Furthermore, the broadcast receiving circuit and the circuit for mobile communication are separated and shielded on the case, thereby preventing the reception rate from being lowered due to electromagnetic interference.

Furthermore, since the terminal according to the present invention processes the image of the camera unit and the image of the broadcast receiver by a single signal processor, there is an effect of reducing hardware and thus reducing manufacturing costs.

Furthermore, the terminal according to the present invention has a bus for controlling operation separately from the image processing path, and thus can control the complicated modules uniformly, so that the system design, the function addition, and the design change can be easily performed.

The present invention has been described above with reference to preferred embodiments, but is not limited thereto, and is interpreted by the appended claims, which are intended to cover many modifications that will be apparent to those skilled in the art without departing from the scope of the present invention. Should be done.

1 is a perspective view of a mobile communication terminal according to an embodiment of the present invention.

2 is a block diagram schematically showing the configuration of a mobile communication terminal according to an embodiment of the present invention.

3 is a block diagram illustrating the embodiment of FIG. 2 in more detail.

4 is a block diagram schematically illustrating an embodiment of a tuner unit.

5 is a block diagram illustrating in more detail the configuration of the IF signal processor of FIG. 4.

<Description of the symbols for the main parts of the drawings>

10. Broadcast receiving module 20. Main body

100. Phone control unit 110. Communication control unit

120. System Controls 210. Keypad

220. Display unit 230. Wireless communication unit

240. Voice input and output circuit 250. Flash memory

260. Audio output unit 300. Broadcast receiving module

310. Broadcast receiving section 311. Tuner section

312. Decoder section 313. Receiving control section

314. Audio processing section 315. Bus interface section

316. Chip selector 320. Flash

321. Charging part 322. Light emitting part

323. Flash control unit 324. Bus interface unit

325. Chip selector 400. Camera

410. Lens system 420. Imaging unit

430. Converter 440. Camera control unit

450. Bus interface unit 460. Chip selector

500. Signal processing unit 510. Media interface unit

520. Image processing unit 530. Image output unit

540. External chip control unit 550. Bus interface unit

560. Control unit 570. Audio processing unit

571. Audio interface unit 580. Memory control unit

581.Memory Interface Unit 600.RF Demodulation Unit

611.UHF filter 612. VHF filter

613.UHF LNA 614.VHF LNA

615.UHF VCO 616.VHF VCO

617.PLL 621.IF Switch

622.VIF Amplifiers 623.AIF Amplifiers

624.VIF filter 625.AIF filter

626. Video output unit 627. Audio output unit

630.IF signal processor 631.Image preamplifier

632.FM Preamplifier 633. VIF PLL

634.FM IF PLL 635.FM IF AGC

636. FM IF AGC 637. Voice Trap

638. FM speech narrowband demodulator 639. Speech output

Claims (10)

A keypad; A display unit for displaying a menu and an operation state; A wireless communication unit for extracting a voice and data signal from a wireless signal transmitted and received through an antenna; A voice input / output circuit for inputting and outputting a voice call signal from the wireless communication unit through a microphone and a speaker; A mobile communication terminal comprising: a communication control unit for controlling voice and data communication, and a phone control unit including a system control unit for controlling an entire system according to an operation signal or an operation state input from the keypad. A camera unit converting an optical signal input from the lens system into an electrical signal and outputting the electrical signal; A broadcast receiving module detachably coupled to the main body, the flash receiving unit including a flash to provide an appropriate amount of light when photographing a subject, and a broadcast receiving unit to output a demodulated image signal and an audio signal from an airwave signal received from an antenna; Mobile communication terminal comprising a. The device of claim 1, wherein the flash is: A charging unit to temporarily charge power supplied from a battery of the mobile communication terminal; A light emitting unit for dimming the electrical energy charged in the charging unit by instantaneously converting it into light; Mobile communication terminal comprising a. The method of claim 1, wherein the broadcast receiving unit: A tuner unit for demodulating a radio broadcast signal received from an antenna;  A decoder for decoding the broadcast signal output from the tuner and outputting the digital data; The tuner unit: An RF demodulator for demodulating the radio broadcast signal received from the antenna into a TV intermediate frequency signal or an FM intermediate frequency signal according to selection control of the system controller; A TV intermediate frequency signal processor for outputting a video signal and an audio signal by demodulating the TV intermediate frequency (IF) signal output from the RF demodulator; An FM intermediate frequency signal processor for demodulating the FM intermediate frequency signal output from the RF demodulator as an audio signal; An intermediate frequency signal processor including a voice output unit configured to output a voice signal of the TV intermediate frequency signal processor or the FM intermediate frequency signal processor; Mobile communication terminal comprising a. The method of claim 3, wherein the broadcast receiving unit: A bus interface unit for receiving a serial bus control signal from the system control unit of the phone control unit; A reception control unit controlling the overall operation of the broadcast reception unit according to the control signal received from the bus interface unit; A mobile communication terminal further comprising. The method of claim 4, wherein the bus interface unit: The serial bus control signal received from the system control unit comprises a TV / FM broadcast selection command. The method of claim 2 wherein the flash is: A bus interface unit for receiving a serial bus control signal from the system control unit of the phone control unit; A flash control unit controlling an operation of the light emitting unit according to a control signal received from the bus interface unit; Mobile communication terminal comprising a. The method according to any one of claims 4, 5, 6, And the serial bus is an I2C bus. The terminal of claim 1, wherein the terminal is: A signal processor configured to selectively process one of a first video signal output from the camera unit and a second video signal output from the broadcast receiver to output to the display unit; Mobile communication terminal comprising a. The method of claim 8, wherein the signal processing unit: Controlling the bus interface unit to individually access the tuner unit and the decoder unit of the broadcast receiver by a plurality of address assignments; Mobile communication terminal, characterized in that. The broadcast receiver according to any one of claims 1, 3 and 4, wherein the broadcast receiver comprises: A mobile communication terminal characterized by one of NTSC, PAL or both.