KR20080016239A - Potable terminal device of mobile telecommunication and wireless lan - Google Patents

Abstract

A potable terminal device for mobile communication and WLAN(Wireless Local Area Network) is provided to perform communication without booting and use wireless communication in a shadow area of the WLAN by displaying the communication performed in a CDMA(Code Division Modulation Access) module to a sub display unit installed to the outside of a portable terminal device such as a laptop computer. A switch(210) provides power received from a power supply unit(200) to a computer system or the CDMA module. A controller(220) analyzes/processes digital data by operation simultaneously with monitoring and controlling whole computer system. A main display unit(110) displays various kinds of data by control of the controller. A WLAN card(230) connects with the controller by being inserted into a slot embedded in the system and supports the WLAN. The CDMA module(240) supports the mobile communication independent of the WLAN. The sub display unit(130) displays a result performed by the CDMA module. The main display unit is installed to an inner side of a cover of the portable terminal device and the sub display unit is installed to a part of an outer side of the cover.

Description

Portable terminal device of mobile telecommunication and wireless LAN

1A and 1B are perspective views of a portable terminal device according to an embodiment of the present invention.

FIG. 2 is a schematic structural block diagram of the portable terminal shown in FIG.

3 is a block diagram showing the structure of a wireless LAN card shown in FIG.

4 is a block diagram showing the structure of a mobile communication module shown in FIG. 2;

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

100: portable terminal device 110: main display unit

120: keyboard portion 130: auxiliary display unit

200: power supply 210: switch

220: control unit 230: WLAN card

240: mobile communication module

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal device such as a notebook computer, and more particularly, to a portable terminal device of a mobile communication and a wireless LAN for performing communication using a mobile communication and a wireless LAN.

In general, a notebook computer or a notebook computer is a general desktop (PC) or a computer (PC) in a minimum area (INTEGRATE) and using a rechargeable battery (RECHARGEABLE BATTERY) as the operating power source By having the same function as a desktop computer, it is easy to carry and is used as a computer anytime, anywhere while moving.

In recent years, the notebook is equipped with a wireless LAN (wireless LAN) can perform wireless communication such as the Internet.

The wireless LAN is a network construction method using radio waves (RF) or light (infrared rays) instead of a wired cable, and wirelessly implements a local area network (LAN) without a cable connection, which is essentially a LAN. It is distinguished from wireless Internet through mobile phones in that it has characteristics.

In other words, if a wireless LAN card is installed in a portable terminal such as a laptop, it is possible to freely access the Internet without connecting a communication cable in a specific area.

There are various standard standards for the wireless LAN, and IEEE 802.11b using wireless RF technology is currently determined as a standard standard of 11 Mbps.

However, in the case of a wireless LAN notebook according to the prior art, a PCMCIA wireless unit (wireless LAN card) supporting a wireless LAN is inserted into a corresponding slot (SLOT) integrally formed in the notebook, and the display unit of the notebook is located inside. Open the cover to turn on the power switch to receive the power from the power source consisting of a charge and discharge battery to boot the notebook system can perform communication via the wireless LAN.

That is, in the case of using a conventional laptop and transmitting or receiving processed data to a remote counterpart using the Internet, the connected wireless unit must be operated to be connected to a mobile communication system. For this purpose, the laptop system must be booted. There is a problem.

In addition, there is a disadvantage that wireless communication cannot be used in a wireless LAN shadow area where the wireless LAN does not operate.

On the other hand, a mobile communication system used in a mobile phone or the like is a system that performs information processing by combining a remote terminal with a wireless communication line, and a typical code division multiple access (CDMA) system.

The CDMA system operates by accessing data information wirelessly to the PSTN and the Internet through a method of transmitting / receiving from a frequency resource of a designated frequency band between a base station and a CDMA mobile terminal.

In order to overcome the problem of the above-described wireless LAN-type notebook apparatus, that is, the problem that communication cannot be performed in the WLAN shaded area, communication can be performed by connecting a CDMA terminal to the notebook, which has the following problems.

In other words, an extension cable is connected to a serial connector or a USB (Universal Serial Bus) port of a laptop to a data connector generally attached to the bottom of a CDMA mobile terminal. In the case of 95C, it could be connected to the data rate of 144Kbps which is slightly faster than this, so that it could be provided with wireless Internet service, but it had to use a separate extension cable and had a low data rate.

In addition, in case of IEEE802.11b wireless LAN, the PCMCIA wireless LAN card is inserted into the notebook to receive 11Mbps transmission speed in the wireless LAN band propagation environment of the AP, but since the CDMA mobile terminal exists separately, the wireless LAN and the mobile terminal can be simultaneously used. If you want to use it has the disadvantage of reducing portability.

The present invention provides a portable terminal device having a wireless LAN card and a mobile communication module unit, wherein the communication performed by the mobile communication module unit is displayed through an auxiliary display unit provided separately on the outside of the cover of the portable terminal device, thereby providing a portable terminal. It is an object of the present invention to provide a mobile terminal and a portable terminal device of a wireless LAN capable of performing wireless communication in a wireless LAN shaded area in which a wireless LAN does not operate, as well as performing a predetermined communication without booting a device.

In order to achieve the above object, a portable terminal device of a mobile communication and a wireless LAN according to an embodiment of the present invention includes a power supply unit implemented as a charge / discharge battery; A switch providing power provided from the power supply to a computer system or a mobile communication module; A control unit which monitors and controls the entire computer system by the power supply and analyzes digital data by arithmetic processing; A main display unit which displays various data under the control of the controller; A wireless LAN card that is connected to the control unit by being inserted into a keyboard unit for inputting various control commands and data to the control unit and a slot provided in the system, and supports wireless local area communication; A mobile communication module unit supporting mobile communication independent of the wireless LAN by the power supply; And an auxiliary display unit configured to display a result performed by the mobile communication module unit.

In addition, the mobile communication module is characterized by being implemented as a CDMA wireless modem.

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

1A and 1B are perspective views of a portable terminal device according to an embodiment of the present invention.

1 illustrates a notebook computer as an example of a portable terminal device according to an embodiment of the present invention, but is not necessarily limited thereto.

1A is a perspective view illustrating a state in which a cover of a portable terminal apparatus 100 according to an exemplary embodiment of the present invention is opened, and FIG. 1B is a perspective view illustrating a state in which a cover is closed.

As shown in FIG. 1A, the main display unit 110 is provided on the inner side of the cover, and the keyboard unit 120 is provided on the notebook body.

In addition, as shown in FIG. 1B, a part of the outer surface of the cover is provided with the auxiliary display unit 130.

At this time, the main display unit 110 is a display unit for the portable terminal device to perform the role of a computer, the system is booted by the power-on of the power switch to display a predetermined screen, the booting of the system The wireless LAN card provided in the portable terminal device operates to perform communication such as the Internet.

In addition, the auxiliary display unit 130 provided on a part of the outer surface of the cover is operated by the mobile communication module unit by power is applied to the mobile communication module unit provided in the portable terminal device irrespective of the booting of the system described above. It is possible to perform communication through a mobile communication module rather than a wireless LAN.

That is, the present invention provides a portable terminal device having a wireless LAN card and a mobile communication module unit, wherein the communication performed by the mobile communication module unit is displayed through an auxiliary display unit provided separately on the outside of the portable terminal device cover. In addition to performing a predetermined wireless communication without booting the portable terminal device, it is characterized in that the wireless communication can be used in a wireless LAN shadow area where the wireless LAN does not operate.

FIG. 2 is a schematic structural block diagram of the portable terminal shown in FIG. 1.

1 and 2, a portable terminal device according to an embodiment of the present invention includes a power supply unit 200 implemented as a charge / discharge battery; A switch 210 for providing power supplied from the power supply unit to a computer system or a mobile communication module unit; A controller 220 for monitoring and controlling the entire computer system by the power supply and analyzing and processing digital data by arithmetic processing; A main display unit 110 displaying various data under control of the controller; A wireless LAN card 230 for inputting various control commands and data to the controller and a wireless LAN card 230 inserted into a slot provided in the system and connected to the controller and supporting wireless local area communication; A mobile communication module unit 240 supporting mobile communication independent of the wireless LAN by the power supply; It is configured to include an auxiliary display unit 130 that displays the results performed by the mobile communication module unit.

In this case, the switch 210 may be provided on the outside of the portable terminal device, for example, on the side of the portable terminal device, and thus the power of the power supply unit 200 may be supplied to the mobile communication module without opening the cover of the portable terminal device. It may be provided to the unit 240.

In addition, the mobile communication module 240 may be implemented as a CDMA wireless modem. Hereinafter, the detailed description of the mobile communication module unit will be described as an example of the CDMA wireless modem.

Referring to the operation of the portable terminal shown in FIG. 2, when the power supplied from the power supply unit 200 by the switch 210 is provided to a computer system, that is, the control unit 220, a general wireless notebook PC Works the same as

That is, in this case, since no power is supplied to the mobile communication module unit 240, the mobile communication module unit 240 and the auxiliary display unit 130 do not operate.

However, when the wireless LAN shadow area reaches the wireless LAN shadow area and no more communication can be performed while performing the short range communication using the wireless LAN card 230, the power supply unit 200 of the power supply unit 200 may be Power may be provided to the mobile communication module unit 240.

Accordingly, the mobile communication module 240 performs a communication operation, and the result is displayed through the auxiliary display unit 130 provided on the outer surface of the cover of the portable terminal device. The communication work such as confirmation can be continuously performed.

Specific configurations and operations of the WLAN card 230 and the mobile communication module 240 will be described in more detail with reference to FIGS. 3 and 4 below.

3 is a block diagram showing the structure of a wireless LAN card shown in FIG.

Referring to FIG. 3, the WLAN card is a network structure having a transmission rate of 11 Mbps according to the IEEE802.11b standard based on Transmission Control Protocol / Internet Protocol (TCP / IP).

Accordingly, the DSSS in the Industrial Scientific Medical (ISM) band (2.4-2.485 GHz) band in half duplex through a medium access controller (MAC) connected to the personal computer memory card international association (PCMCIA) interface of the portable terminal device. It transmits information by (Direct Sequence Spread Spectrum) method.

At this time, the transmission output of each of the WLAN card and the access point (AP) is fixed to a channel allocated by the access point (AP) within 10 mW without permission and within 100 mW with permission, so that mobility, portability, and simplicity of network access are fixed. This ensures high speed and flexibility.

The operation of the WLAN card will be described with reference to FIG. 3 as follows.

In the receiving circuit, the AP signal applied to the antenna is switched by a switch (Dual SW) to amplify the LNA. The frequency component of the amplified WLAN band is converted to IF through a downlink frequency converter by removing the other band frequency with an RF SAW filter.

After performing the channel filter with IF SAW, gain control is performed according to the change of the reception level, converted into a baseband signal through a demodulator, and then converted into a digital signal through a baseband low pass filter.

In addition, it is generally applied to a DSP processing unit called MAC to transmit information data into the portable terminal device via a PCMCIA interface.

In addition, the transmitting circuit modulates data generated by an information device such as a PC / PDA (Personal Digital Assistant) in the MAC to convert wireless LAN digital information into a baseband analog signal through a digital-to-analog converter. Pass the amplifier to vary the level of the transmitted signal according to the propagation environment.

The variable signal passes through an IF SAW filter and passes through a driving amplifier and a power amplifier via an uplink frequency converter and an image signal removing filter. The antenna is radiated to the antenna through the SAW filter and transmitted to the AP.

4 is a block diagram illustrating a specific configuration of a mobile communication module shown in FIG. 2.

However, as mentioned above, the mobile communication module applied to the embodiment of the present invention will describe the CDMA wireless modem as an example.

Referring to FIG. 4, the mobile communication module unit has a frequency bandwidth according to a forward / reverse carrier frequency and a chip rate defined in the system, and typically has a frequency bandwidth of 1.2288 MHz.

In order to overcome the multipath fading, the mobile communication module includes a receiver receiver structure in a modem, and the receiver circuit is composed of IF (Intermediate Frequency) and RF (Radio Frequency, RF) for CDMA power control. Gain control at the radio frequency).

The receiving circuit amplifies the base station signal applied to the antenna through a duplexer with a switch (LNA) low noise amplifier (LNA).

The amplified CDMA signal is converted to IF through a down converter (down converter) by removing other band frequencies with an RF SAW filter.

After performing the channel filter with the IF SAW filter, gain control is performed according to the change of the reception level, converted to the baseband signal through the demodulator, and then passed through the baseband lowpass filter to the analog-to-digital converter. Converter, A / D) converts the digital signal and is applied to the DSP (Digital Signal Processor) processing unit, which is commonly referred to as MSM (Mobile Station Modem), and outputs it through a coder-decoder (CODEC).

In addition, the transmitting circuit modulates the data generated by the microphone and the information device in the MSM to convert the CDMA digital information into a baseband analog signal through a digital-to-analog converter (D / A), followed by a modulator and an intermediate frequency gain. The control amplifier varies the level of the transmission signal under control of the base station.

The signal passes through an IF SAW filter, an uplink frequency converter and an image signal rejection filter, and passes through a driving amplifier (AMP) and a power amplifier (PA). The antenna is radiated to the antenna through the duplexer and transmitted to the base station.

As described above, the present invention provides a wireless LAN card and a mobile communication module unit (CDMA wireless modem) in the portable terminal device, and selectively operates the switch through the switch provided in the portable terminal device, thereby performing general short-range communication. In the case of using the same as the conventional wireless LAN notebook, and when performing communication through the mobile communication module unit, the communication result is displayed on the auxiliary display provided on the outer surface of the cover without opening the cover of the portable terminal device Communication can be performed.

That is, according to the present invention, as well as performing a predetermined communication without booting the portable terminal device, it is possible to use wireless communication in the wireless LAN shadow area where the wireless LAN does not operate.

According to the present invention, in the portable terminal device having a wireless LAN card and a mobile communication module unit, the communication performed by the mobile communication module unit is displayed through the auxiliary display unit provided separately on the outside of the portable terminal device cover As a result, not only a predetermined communication can be performed without booting the portable terminal device, but wireless communication can be used even in a wireless LAN shadow area where the wireless LAN does not operate.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (5)

A power supply unit implemented as a charge / discharge battery; A switch providing power provided from the power supply to a computer system or a mobile communication module; A control unit which monitors and controls the entire computer system by the power supply and analyzes digital data by arithmetic processing; A main display unit which displays various data under the control of the controller; A wireless LAN card inserted into a slot provided in the system and connected to a control unit and supporting wireless local area communication; A mobile communication module unit supporting mobile communication independent of the wireless LAN by the power supply; And a secondary display unit for displaying a result performed by the mobile communication module unit. The method of claim 1, The main display unit is a mobile terminal of the mobile communication and wireless LAN, characterized in that provided on the inner surface of the mobile terminal cover. The method of claim 1, The auxiliary display unit is a mobile terminal of the mobile communication and wireless LAN, characterized in that provided on a portion of the outer surface of the portable terminal device cover. The method of claim 1, The mobile communication module unit is a mobile terminal of a mobile communication and a wireless LAN, characterized in that implemented as a CDMA wireless modem. The method of claim 1, The switch is a portable terminal device of a mobile communication and a wireless LAN, characterized in that provided on the outside of the portable terminal device.

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