KR20010029046A - Method for servicing an additional information by using a jini in a pda - Google Patents

Abstract

PURPOSE: The additional servicing method using the Jini in a personal digital assistant is provided to offer all sorts of additional informations in accordance with a user's demand by installing the Jini program in the personal digital assistant. CONSTITUTION: A user connects to a network using a modem mounted on a personal digital assistant(PDA) terminal for receiving all sorts of additional services as a bus route and certificate information(201). If the user requests wanted additional service by operating the personal digital assistant terminal(203), the personal digital assistant terminal searches a look-up server offering a look-up service using a uni-cast or a multi-cast request protocol(205). If a response is received from the look-up server, the personal digital assistant terminal demands the offering of additional service requested by the user(207). The look-up server searches an additional information server offering an additional information responded to the user's demand out of each information server registered to own, and offers a proxy with respect to the corresponding additional information server to the personal digital assistant terminal(209). The personal digital assistant terminal calls the corresponding additional information server using the proxy offered from the look-up server through the look-up server(211), and demands input information demanded by the user(213). The additional information server responds to the demand of the personal digital assistant terminal, and transmits the demanded information to the personal digital assistant terminal through the look-up server(215). The personal digital assistant terminal displays the transmitted bus route information, and the user refers to the wanted additional information(217).

Description

ADDITIONAL SERVICE METHOD USING GENINI IN MEDIA

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal digital assistant (PDA), and more specifically, to a bus route information and securities information by mounting a Java application (Jini) on a PDA. The present invention relates to an additional service method using Genie in a PDA suitable for providing various additional services.

As is well known, a PDA is a portable information terminal that is about the size of a general mobile phone and uses a device such as a pen to input and process information instead of a keyboard. In particular, the PDA has a feature that can be easily connected to the network because it has the infrared communication, the communication using the serial port, the communication using the modem.

In recent years, attempts have been made to mount a Java virtual machine (JVM) on such PDAs, which are intended to enable the execution of Java applications on a PDA by mounting the Java virtual machine. Because Java applications are very portable, there is an advantage that programs developed on one system work the same on other systems.

One of these Java applications, Genie, is a Java-based network distribution technology that enables the identification of peripheral devices in a network regardless of protocols. It is a single network for home appliances such as PCs, peripherals, mobile phones, pagers, and home appliances. It can be controlled in the environment, and in particular, there is an advantage that can be utilized in an analog based network environment. In other words, by using the genie, hardware or software separated from each other can recognize each other through a network, and mutual data communication is possible.

In addition, since Genie can utilize peripheral devices regardless of operating system (OS), it has the advantage of reducing the data connection load generated when data is controlled by a single operating system to strengthen the distributed environment among network devices.

If it is possible to provide additional information such as bus route information and securities information in PDA by installing Java application, Genie, it is possible to improve the additional service function of PDA. You will be able to meet your needs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object of the present invention is to provide an additional service method using Genie in a PDA capable of providing various additional information according to a user's request by mounting the Genie in a PDA system.

According to a preferred embodiment of the present invention, there is provided a method for servicing various additional information using a PDA terminal, wherein the system for servicing the additional information is based on contents of the various additional information. And a look-up server configured to perform matching with the PDA terminal and to store a type of additional information that can be serviced from the additional information server. The method includes: providing the additional information in the PDA terminal. A first step of searching for the lookup server when a service request signal for the input is input; If the lookup server is found, requesting an additional service corresponding to the request signal from the lookup server; A third step of reading the prestored various types of additional information from the lookup server and searching for an additional information server providing the requested additional service; If the additional information server is found, providing a proxy for the additional information server to the PDA terminal; A fifth step of calling the additional information server based on the proxy from the PDA terminal and requesting information corresponding to the service request signal; And a sixth step of retrieving the requested information from the additional information server and transmitting the requested information to the PDA terminal.

1 is a block diagram of a PDA system suitable for applying an additional service method using a genie according to an embodiment of the present invention;

2 is a flowchart illustrating a process of performing an additional service method using Genie in a PDA according to a preferred embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

110: additional information server 120: lookup server

150: PDA terminal

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention.

1 is a block diagram of a PDA system suitable for applying a supplementary service method using a genie according to an exemplary embodiment of the present invention. The supplementary information server 110, a lookup server 120, and a PDA terminal 150 are shown in FIG. Each of these consists of hardware that Genie can run on.

Further, the additional information server 110 is each information server for providing various additional services according to the present invention, that is, bus route information server 111, securities information server 112, map information server 113, English words And a search server 114 or the like.

Meanwhile, although the additional information server 110 may be configured as separate servers 111, 112, 113,... As shown in FIG. 1, one additional information server 110 may be configured according to the capacity of the additional information server 110. It can also be configured as a server to store and process each piece of information.

Referring to FIG. 1, each server 111, 112, 113,... Of the additional information server 110 may include a lookup server that describes its service contents (bus route information service, stock information service, map information service, etc.). In this case, the lookup server 120 may recognize the serviceable information from the additional information server 110.

In addition, the PDA terminal 150 accesses the lookup server 120 through a network, requests information, bus route information, stock information, map information, etc. according to a user's operation, and is provided through the lookup server 120 again. Each additional information is received and displayed. In this case, the PDA terminal 150 and the lookup server 120 communicate using a unicast or multicast request protocol. In addition, although a plurality of PDA terminals 150 which can be simultaneously connected to the lookup server 120 may be configured, only one PDA terminal 150 is illustrated in FIG. 1 for convenience of description.

For example, when the user first accesses a network using a modem provided in the PDA terminal 150 and then requests a service for bus route information, the PDA terminal 150 first The server providing the lookup service is searched using the unicast or multicast request protocol. At this time, the lookup server 120 notifies the PDA terminal 150 of its presence in response to a request signal (protocol).

The PDA terminal 150 that finds the lookup server 120 through this process reads the type of service provided from the lookup server 120 and requests the bus line information from the lookup server 120 accordingly. Then, the lookup server 120 that is requested to provide bus route information searches for a server that provides information about bus routes among the information servers 111, 112, 113, 114,. It provides a proxy for the server, that is, the bus route information server 111 to the PDA terminal 150.

Subsequently, the PDA terminal 150 calls the bus route information server 111 through the lookup server 120 again using the proxy provided from the lookup server 120 and then requests transmission of the bus route information.

The bus route information server 111 retrieves information on the bus route in response to a request of the PDA terminal 150, and then transmits the retrieved information to the PDA terminal 150 through the lookup server 120. The display unit 150 transmits the bus route information so that the user can refer to the bus route information of the region requested by the user.

In contrast, referring to a case where a user wants to search for an English word using his PDA terminal 150, first, as in the above-described embodiment, the user first uses a modem provided in the PDA terminal 150. After accessing the network, when the PDA terminal 150 is operated to request a service for English word search, the PDA terminal 150 searches for a server providing a lookup service using a unicast or multicast request protocol. In this case, the lookup server 120 notifies the PDA terminal 150 of its presence in response to the request signal (protocol).

In addition, the PDA terminal 150 that finds the lookup server 120 requests the lookup server 120 for an English word search service among the types of services provided from the lookup server 120, and the lookup that is requested to provide bus route information. The server 120 provides a proxy for the English word search server 114, that is, a server that provides a search service to English words among the information servers 111, 112, 113, 114,... Provided to the PDA terminal 150.

Accordingly, the PDA terminal 150 calls the English word search server 111 through the lookup server 120 again using the proxy provided from the lookup server 120, and again, the user searches for a specific word that the user wants to search. Is searched using the PDA terminal 150, the English word search server 114 performs a search for the English words transmitted from the PDA terminal 150, that is, information about the meaning and utilization of the corresponding English words, ie, a dictionary. The information is transmitted back to the PDA terminal 150.

In addition, the PDA terminal 150 displays the bus route information transmitted from the English word search server 114, so that the user can refer to the information on the English word requested by the user.

FIG. 2 is a flowchart illustrating a process of performing an additional service method using Genie in a PDA according to a preferred embodiment of the present invention. Hereinafter, the series of processes described above with reference to the accompanying drawings will be described in detail.

In the state where the user is connected to the network using a modem provided in the PDA terminal 150 to receive various additional services such as bus route information and stock information using the PDA terminal 150 (step 201), When the PDA terminal 150 requests the additional service desired by operating the PDA terminal 150 (step 203), the PDA terminal 150 provides the lookup server 120 using the unicast or multicast request protocol based thereon. After searching for (step 205), if the response from the lookup server 120 comes to request the provision of the additional service requested by the user (step 207).

In addition, the lookup server 120 that is requested to provide the additional service includes an additional information server that provides additional information corresponding to a user's request among the information servers 111, 112, 113, 114,... The proxy provides the proxy for the additional information server to the PDA terminal 150 (step 209).

Accordingly, the PDA terminal 150 calls the corresponding additional information server through the lookup server 120 using the proxy provided from the lookup server 120 (step 211), and then requests the input information requested by the user (step 211). Step 213).

In addition, the additional information server transmits the requested information to the PDA terminal 150 through the lookup server 120 in response to the request of the PDA terminal 150 (step 215), and the PDA terminal 150 transmits the transferred bus. By displaying the route information, the user can refer to the additional information requested by the user (step 217).

As described above, according to the present invention, there is an effect that can provide a variety of additional information by mounting the genie on the PDA, thereby improving the overall function of the PDA.

Claims (2)

In the method for servicing various additional information using a PDA (Personal Digital Assistant) terminal, The system for servicing the additional information, An additional information server for pre-store contents of the various additional information; And a look-up server performing matching with the PDA terminal and pre-store a type of additional information serviceable from the additional information server. The method is: A first step of searching for the lookup server when a service request signal for providing the additional information is input from the PDA terminal; If the lookup server is found, requesting an additional service corresponding to the request signal from the lookup server; A third step of reading the prestored various types of additional information from the lookup server and searching for an additional information server providing the requested additional service; If the additional information server is found, providing a proxy for the additional information server to the PDA terminal; A fifth step of calling the additional information server based on the proxy from the PDA terminal and requesting information corresponding to the service request signal; And a sixth step of retrieving the requested information from the additional information server and transmitting the requested information to the PDA terminal. The method of claim 1, wherein the additional information server that pre-stores the contents of the various additional information comprises a plurality of additional information servers corresponding to each of the various additional information.