KR20020048105A - communication method of personal digital assistant(PDA) using blue tooth - Google Patents

Abstract

PURPOSE: A communication method of a portable type information terminal using a bluetooth is provided to mount the bluetooth to a PDA(Personal Information Manager), so that since a user of the terminal can connect to the Internet through only the operation of PDA without connecting a cable, the use of the device as a PDA or a terminal is convenient. CONSTITUTION: A bluetooth chip(110) is mounted to a PDA(100) and a cellular phone(200) for performing a short-distance wireless communication with each other. The base stations(300-1-300-n) pursue positions of the plurality of cellular phones(200), transmit/receive wireless signals about the cellular phones(200), convert a communication protocol and encode/decode the protocol. A base station controller(400) manages the plurality of base stations(300-1-300-n), controls an allocation of the communication channel as to the cellular phone(200) and determines the hand-over. An information providing relay center(500) transmits a service provided the corresponding server when a user of the PDA(100) requests various services such as fax, mail and Internet search etc. to the PDA(100) through the cellular phone(200).

Description

Communication method of portable information terminal using Bluetooth {communication method of personal digital assistant (PDA) using blue tooth}

The present invention relates to a communication method of a portable information terminal, and in particular, the portable information terminal is equipped with Bluetooth, and the communication of the portable information terminal using Bluetooth that can be connected to the Internet wirelessly only by operating the portable information terminal without connecting a cable to the mobile phone. It is about a method.

In general, a portable information terminal (PDA: Personal Digital Assistant, hereinafter referred to as PDA), which provides personal information manager (PIM) software for address book or calendar, is used for data exchange with a PC and various applications. In addition, as a very small computer with a data communication function in connection with mobile communication, the data communication function that can connect to the Internet in connection with the mobile communication device has recently emerged, and the area is expanding to a new field of mobile computing. to be.

However, in order to send and receive mails, faxes, and newspaper articles using the PDA, the PDA is connected to the Internet network through a wired telephone network or a wireless portable telephone (hereinafter referred to as a cellular phone). If there is a phone line (jack) from the phone to connect to the PDA to use, and after use, the phone line (jack) has to be connected to the phone again for use of the phone, there is a problem inconvenient use.

In addition, if the PDA does not have a built-in modem, the PDA must be connected to the cellular phone with a cable (RS232). Therefore, the user is restricted from using the PDA or the cellular phone, and it is inconvenient to move. There was a problem.

Accordingly, the present invention has been made to solve the above-described problems, and can be connected to the Internet wirelessly with only the operation of the PDA without a cable connected to the mobile phone (bluetooth mounted) by mounting a Bluetooth (blue tooth) to the PDA The purpose of the present invention is to provide a communication method of a portable information terminal using Bluetooth that is easy to wear and that a PDA or a mobile phone can be easily used.

1 is an overall configuration diagram of a communication system of a portable information terminal using Bluetooth according to the present invention;

2 is a flowchart showing an operation procedure for transmitting a fax and an e-mail using a communication system of a portable information terminal according to the present invention;

3 is a flowchart showing an operation procedure for searching the Internet using a communication system of a portable information terminal according to the present invention.

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

100: PDA 110: PDA mounted Bluetooth

200: mobile phone 210: Bluetooth for mobile phone

300 (300-1 ~ 300-n): base station 400: base station controller

500: information providing relay center 510: user DB server

520 web server 530 fax server

540: mail server 550: other server

In order to achieve the above object, a communication method of a portable information terminal using Bluetooth according to the present invention is a short-range communication method of wirelessly communicating data with a Bluetooth mounted on a mobile phone by a Bluetooth mounted on the portable information terminal according to an operation of the portable information terminal. A wireless communication step, an internet network access step in which the portable information terminal is connected to the internet network through short-range wireless communication with the mobile phone, and when the portable information terminal is connected to the internet network, the mobile terminal connects to the internet network according to a service request of a terminal user. Characterized in that the information transmission step of transmitting information to the portable information terminal via the mobile phone from the connected server.

In the information transmission step, when the user requests fax and mail transmission, the fax and mail server processes and transmits the fax and mail service, and when the user requests the Internet search, the web server processes and transmits the search service. It is done.

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

1 is an overall configuration diagram of a communication system of a portable information terminal using Bluetooth according to the present invention.

As shown in FIG. 1, a communication system of a portable information terminal using Bluetooth includes a PDA 100, a mobile phone 200, a base station 300-1 to 300-n, a base station controller 400, and an information provision relay. The center 500 is comprised including.

The PDA 100 is a personal digital assistant having both a computing function and a communication function that allows a pen and a touch panel as input means to access desired information anytime, anywhere in a desired form. A blue tooth chip 110 (hereinafter referred to as Bluetooth) is mounted for short-range wireless communication with the 200.

The mobile phone 200 is a portable communication terminal that receives information desired by a user from the information providing relay center 500 by accessing an internet network through wireless transmission and reception with the base stations 300-1 to 300-n. The mobile phone 200 is equipped with a Bluetooth 210 for short-range wireless communication with the PDA 100.

The base station (300-1 ~ 300-n) is to track the location of the plurality of mobile phones 200, BTS for transmitting and receiving a radio signal to the mobile phone 200 and the conversion and encryption / demodulation of the communication protocol, etc. The base station controller 400 manages the plurality of base stations 300-1 to 300-n and performs functions such as allocation control and handover determination of a communication channel for the mobile phone 200. It is BSC.

The information providing relay center 500 transmits a service provided by the corresponding server to the PDA 100 through the mobile phone 200 when various service requests such as fax, mail, Internet search, etc. occur from the user of the PDA 100 ( And a user database 510 (hereinafter referred to as a user DB server), a web server 520, a fax server 530, a mail server 540, and other servers 550.

The user DB server 510 manages a personal identification number (PIN) for the mobile phone 200 and personal information (member ID, member password, name, resident registration number, etc.) of the PDA 100 user. Build and store a database for this purpose.

The web server 520 transmits a request service by outputting the homepage of the corresponding server to the web browser of the PDA 100 when various service requests such as fax, mail, and Internet search are generated from the user of the PDA 100. And, the user receives the desired information withdrawal command from the user of the PDA 100 and transmits the contents stored in the database to the PDA 100 side.

The fax server 530 outputs the homepage of the fax server 530 to the web browser of the user side PDA 100 when the user requests a fax transmission from the user of the PDA 100, and transmits a request service. 100) Receives the desired information withdrawal command from the user and sends the processed fax service to the receiver (receiving side PDA or desktop PC).

The mail server 540 transmits a homepage of the mail server 540 to the web browser of the user side PDA 100 when the user requests a mail transmission from the user of the PDA 100, and transmits a request service. 100) Receives the desired information withdrawal command from the user and sends the processed mail service to the receiver (receiving side PDA or desktop PC).

The other server 550 transmits the request service by outputting the home page of the corresponding server to the web browser of the user side PDA 100 when requesting other information from the user of the PDA 100, and desired information from the user of the PDA 100. Receives an order to withdraw and sends the contents stored in the database to the user or receiver.

Hereinafter, the operational effects of the communication method of the portable information terminal using Bluetooth configured as described above will be described.

Fig. 2 is a flowchart showing an operation procedure for transmitting a fax and an e-mail using a communication system of a portable information terminal according to the present invention. In Fig. 2, S denotes a step.

First, the PDA 100 and the mobile phone 200 are equipped with Bluetooth 110 and 210, which are short-range wireless communication circuits, respectively, so that the PDA 100 can be connected to the mobile phone 200 without a cable RS232. ) And wireless communication between the mobile phone and the mobile phone 200 is possible, so that the mobile phone 200 can be worn at a convenient location (for example, a pocket or a waist).

The Bluetooth 110 and 210 mounted in the PDA 100 and the mobile phone 200 refer to a frequency standard for short-range data transmission and reception that can be performed wirelessly, and its use frequency is 2.4 GHz Industrial Scientific Medical (ISM) band and It is in the vicinity of the band, and this range is a frequency band that can be used without permission except in some countries such as Japan, France, and Spain. The transmission distance is usually in the range of 10cm-10m, but if the output is increased, communication is possible up to 100m. The propagation method used is a spread spectrum method, and various modulation methods are possible depending on the application.

Examples of Bluetooth frequencies that may be used include PDA 100, desktop PCs, portable computers (laptops), cellular or PCS type mobile phones 200 and their peripherals (e.g., printers, scanners, modems for network use). Wireless communication that allows voice to send and receive data without a physical cable.

If the Bluetooth technology is implemented in the mobile phone 200 and the notebook, there is no need to use the cumbersome cable currently used to connect the mobile phone 200 and the notebook. Virtually any digital device, including printers, desktops, fax machines, keyboards and joysticks, can be part of a Bluetooth system.

In addition, Bluetooth has an advantage that can compensate for some of the shortcomings of the InfraRed Data Association (IrDA) standard currently in use. That is, Bluetooth can penetrate non-metallic solids firstly, and secondly, wireless connection is possible not only in a fixed communication environment but also in a mobile communication environment. Third, a device is not a point-to-point method such as IrDA. Point to multipoint is possible, the fourth is omni directional radio launch, and the fifth Bluetooth circuit (wireless communication between devices using Bluetooth frequency) It is economically advantageous in that the development cost of the chip is gradually lowered.

For this reason, Ericsson, Nokia, Intel, Toshiba, and IBM formed a public standard in 1998, forming a consortium called the Bluetooth Special Interest Group (SIG). Since then, Lucent Technologies, Motorola, Microsoft, and 3Com have joined the SIG (Special Interest Group), with 1790 members worldwide (2000.4.20). This number is on the rise, so Bluetooth is now a global standard for short-range wireless communications, and the outlook is bright.

As described above, when the PDA 100 is operated to access the information providing relay center 500 connected to various network communication networks (for example, the Internet network) by operating the PDA 100 equipped with the Bluetooth 110. (S1) The Bluetooth 110 mounted on the PDA 100 communicates data wirelessly with the Bluetooth 210 mounted on the mobile phone 200 of the PDA 100 user.

At this time, by tracking the location of the mobile phone 200 in the base station (300-1 ~ 300-n) for jurisdiction of the area where the mobile phone 200 is located, the transmission and reception of radio signals to the mobile phone 200 and the conversion and encryption / When demodulation and the like are reported to the base station controller 400, the base station controller 400 performs functions such as allocation control and handover determination of the communication channel for the mobile phone 200, thereby performing a PDA 100. ) Is connected to the web server 520 of the information providing relay center 500 connected to the Internet via the mobile phone (200) (S3).

When the PDA 100 is connected to the web server 520, the homepage opened in the web server 520 is output to the web browser of the PDA 100 and displayed on the LCD screen of the PDA 100 (S4).

Subsequently, the user inquires or loads desired information (mail, fax, etc.) from the web server 520 output to the web browser. The web server 520 analyzes whether the user registration is first (S5) If the result is the first registration (YES), the personal information (member ID, member password, name, social security number, etc.) of the PDA 100 is input. (S6)

When a user inputs personal identification information and requests registration, the web server 520 allocates a personal identification number (PIN) and a password to store the user's identifier and identification information in the user DB server 510. And (S7) completes the registration procedure by sending the user identifier to the user.

As a result of the analysis in step S5, if it is not registered for the first time (NO), the PDA 100 user inputs his or her ID, which is a user identifier, on the home page, and enters a password if there is a password.

Accordingly, the user identifier is transmitted to the web server 520, and the web server 520 searches the user identifier through the user DB server 510 to search whether the user is a registered or unregistered user (S10, S11).

As a result of the search, if the user is a registered user, when the user writes a fax or mail using the PDA 100 and then requests the use of the fax server 530 or the mail server 540 (S12), the fax server 530 or mail. The server 540 transmits the fax or mail service processed to the receiver (the receiving PDA or the desktop PC). (S13)

Next, a description will be given of how the PDA 100 user searches the Internet.

FIG. 3 is a flowchart showing an operation procedure for searching the Internet using the communication system of the portable information terminal according to the present invention, in which S denotes a step.

Operating the PDA 100 to access the information providing relay center 500 connected to the Internet by operating the PDA 100 equipped with the Bluetooth 110 (S21), the Bluetooth (100) mounted on the PDA 100 ( The 110 communicates data wirelessly with the Bluetooth 210 mounted in the mobile phone 200 of the user of the PDA 100 so that the PDA 100 communicates with the web server 520 of the information providing relay center 500 through the mobile phone 200. (S22, S23).

When the PDA 100 is connected to the web server 520, the home page opened in the web server 520 is output to the web browser of the PDA 100 and displayed on the LCD screen of the PDA 100 (S24).

Subsequently, the user inquires or loads desired information (internet search, etc.) from the web server 520 output to the web browser. The web server 520 analyzes whether user registration is first (S25), and analyzes the result. If it is the first registration (YES), the personal information of the PDA 100 is input. (S26)

When the user inputs personally identifiable information and requests registration, the web server 520 allocates a user identifier and a password to store the user's identifier and personal information in the user DB server 510 (S27). The registration process is completed by transmitting the user identifier (S28).

As a result of the analysis in step S25, if it is not registered for the first time (NO), the PDA 100 user inputs his ID, which is a user identifier, on the home page, and enters a password if there is a password.

Accordingly, the user identifier is transmitted to the web server 520, and the web server 520 searches the user identifier through the user DB server 510 to search whether the user is a registered or unregistered user (S30, S31).

As a result of the search, if the user is a registered user, the user requests the use of the web server 520 to search the Internet using the PDA 100 (S32). The web server 520 processes the search word and processes the Internet. The search service is displayed on the PDA (100) user's web browser and displayed. (S33, S34)

On the other hand, in one embodiment of the present invention described for the wireless Internet communication method using a web server 520, a fax server 530, a mail server 540 as an example, the present invention is not limited to this and any other Of course, using the server 550 can achieve the same objects and effects as the present invention.

In addition, in the embodiment of the present invention, the PDA 110 for mounting the Bluetooth 110 is described as an example of connecting to the Internet through short-range wireless communication with the mobile phone 200 for mounting the Bluetooth 210, for example. It is a matter of course that the same object and effect as those of the present invention can be achieved by using any device that can be connected to the Internet network such as a desktop PC, a notebook computer, a telephone, and the like.

According to the communication method of the portable information terminal using Bluetooth according to the present invention as described above, the Bluetooth (blue tooth) mounted on the PDA wirelessly connected to the mobile phone (Bluetooth-mounted) without connecting the cable to the Internet wirelessly only by operation of the PDA Easy to wear and can be connected to the PDA or mobile phone has the effect that you can easily use.

Claims (2)

A short-range wireless communication step in which the Bluetooth mounted on the portable information terminal communicates data wirelessly with the Bluetooth mounted on the mobile phone according to the operation of the portable information terminal; An internet network access step in which the portable information terminal is connected to an internet network through short-range wireless communication with the mobile phone; When the portable information terminal is connected to the Internet network, the portable information using Bluetooth, characterized in that configured to transmit information from the server connected to the Internet network to the portable information terminal through the mobile phone in accordance with the service request of the terminal user Communication method of the terminal. The method of claim 1, In the information transmission step, when the user requests fax and mail transmission, the fax and mail server processes and transmits the fax and mail service, and when the user requests the Internet search, the web server processes and transmits the search service. Communication method of a portable information terminal using Bluetooth.