KR20000002775A - Method for displaying homepage of ieee 1394 network node device - Google Patents

Abstract

PURPOSE: A method for displaying a homepage of IEEE 1394 network node device is provided to display homepage information of a corresponding device on a screen while a user chooses a device for knowing easily a state and an operation of the device. CONSTITUTION: A method for displaying a homepage of IEEE 1394 network node device comprises: a first step of connected devices employing an internet protocol and detecting inclusion of a web server for obtaining an IP address of a device including the web server after 1394 resetting; and a second step using the IP address for linking and displaying the homepage with the images of the device including the web server.

Description

ＩＥＥＥ 1394 Network node device home page display method

The present invention relates to an IEEE 1394 network. More particularly, the present invention relates to an IEEE 1394 network node device that searches a device including a web server among devices connected to and operates on an IEEE 1394 network and links the home page of the device on the screen. A homepage display method.

Recently, various digital devices such as digital TV (DTV), digital VCR (DVCR), and digital set-top box have emerged, and IEEE 1394, a network that allows these digital devices to interface and communicate with each other, is in the spotlight. (See references in IEEE 1394-1995 High Performance Serial Bus, IEC 61883, etc.).

FIG. 1 illustrates a protocol stack of an IEEE 1394 device (hereinafter, referred to as a 1394 device). A general protocol stack provided by each device employing a 1394 communication function includes a physical layer 100, which is the lowest layer. It consists of a link layer (110), a transaction layer (transaction layer) 120 and a serial bus management (Serial Bus Management) 130, which is the top layer. The physical layer 100 receives a bit string from the link layer 110 at the time of transmission, obtains a right to use a serial bus, encodes it, converts it into an electrical signal, and transmits data on an external bus. When receiving, the reverse process is performed. The link layer 110 handles data in units of packets, and has a function of packet construction and decomposition, error detection, and bus cycle management. In general, the physical layer 100 and the link layer 110 are composed of a chipset. Transaction layer 120 provides transactions such as data read / write / lock and performs asynchronous communication with other devices (or nodes) on the 1394 bus using services provided in the lower layers. The serial bus management 130 includes various data structures such as a configuration ROM and a control and status register (CSR), and includes power management and a system-wide connection structure (topology). Responsible for the top level management roles such as speed maps. The transaction layer 120 and the serial bus management layer 130 are written in software and are implemented by being embedded in the microcomputer of each device.

2 is a block diagram of a digital device having a 1394 communication function, and the digital device includes a device dependent hardware 200, a microcomputer 210, a physical layer performing block 220, and a link layer. It is composed of a performance block 230. The unique function performing unit 200 performs a unique function of the corresponding device. The microcomputer 210 supports 1394 and performs operations of the transaction layer and the serial bus management layer described with reference to FIG. 1. The physical layer performing block 220 is hardware implementing the functions of the physical layer 100 of FIG. 1, and the link layer performing block 230 implements the link layer 110 and the CIP header insertion / removal function of IEC 61883. It's hardware.

Conventionally, as described above, a plurality of digital devices are connected to and transmitted data from each other on a 1394 network, but there is no user screen construction method that can more clearly express the state of a device on a node (a device connected to the 1394 network). .

An object of the present invention is to provide a method for displaying a homepage of an IEEE 1394 network node device for displaying a web server linking a device including a web server by checking whether a web server is included in devices connected to the IEEE 1394 network.

1 illustrates a protocol stack of an IEEE 1394 device (hereinafter, referred to as a 1394 device).

2 is a block diagram of a digital device with a 1394 communication function.

3 is an embodiment of an IEEE 1394 network configuration for explaining the present invention.

4 illustrates the 1394 network protocol stack of FIG.

5 is a flowchart of a home page display method of an IEEE 1394 network node device of the present invention.

6 is a flowchart of a specific execution method of FIG. 5.

FIG. 7 illustrates a screen displayed on a web browser according to FIG. 6.

To solve the problem, when two or more digital devices are connected on an IEEE 1394 network, all devices connected to the 1394 network by performing a client function with the same protocol layer as the Internet protocol stack above the 1394 communication layer. The method of displaying the homepage of an IEEE 1394 network node device displaying and linking the homepages of devices on a 1394 having a web server function to a user in a device providing the operation information of the device is provided immediately after a 1394 bus reset. Checking whether a web server is employed and obtaining an IP address of a device including the web server; And a second step of linking and displaying the homepage together with the images of the devices including the web server using the Internet address.

The first step may include: checking whether the device to be tested has an Internet protocol (IP over 1394); If an internet protocol is employed, checking whether a web server exists; Obtaining an IP address defined in the internet protocol if a web server exists; And creating an icon image of the device using the Internet address, and linking the homepage of the device to the image.

The second step is preferably a step of displaying an icon image of a homepage linked device on a web browser screen.

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

3 is an embodiment of the IEEE 1394 network configuration for explaining the present invention, a network node (node) that is a digital TV 300, a digital VCR 310, a digital camcorder 320 and a digital set-top box 330 It is connected on the 1394 bus. In this case, the digital TV 300 is the easiest to search for the screen by the user, so the digital TV 300 takes on the role of indicating the operation status of the remaining devices. To this end, the digital TV 300 performs web-based data communication including the protocol layer as shown in FIG. 4, and when the remaining devices 310 to 330 are web-based devices including the protocol layer as shown in FIG. 4, Send and receive data to and from the devices according to a client / server method as in the general Internet. In the digital TV 300, there is a web browser that links the homepages of the devices to perform data communication with a device desired by a user and display or control the content. Since the remaining devices 310 to 330 do not employ a web-based protocol or there is no web server, the homepage cannot be linked on the web browser of the digital TV 300. It checks first whether it is web-based and has a web server, and then performs the homepage link only on the device. Here, the hypertext document to be transmitted by the devices employing the web server is a hypertext document (HTML Document Hiearchy) that contains information about each function and operation. When the digital TV 300 links and displays the homepages of the devices where the web server exists, the user enters the homepage of the desired device, at which time the homepage information of the device is transmitted to the digital TV 300-detailed operation of the device. Or check or control function information.

4 is an IEEE 1394 network protocol layer diagram of FIG. 3, which includes a 1394 layer 400, an IP (Internet Communication Protocol) layer 410, a TCP (Transmission Control Protocol) layer 420, and HTTP (Hypertexter). Transmission protocol) layer 430. The 1394 layer 400 is a physical layer that transmits and receives data through a 1394 network bus. The IP layer 410 is a layer to which rules for connecting these independent networks are applied in order to connect and operate the networks operating independently of each other. The IP layer 410 includes a Reverse Address Resolution Protocol (RARP) that obtains an Internet address using the hardware address of each node connected to the 1394 network. The TCP layer 420 is a layer to which a communication network protocol of a system connected through the Internet is applied. The HTTP layer 430 is a layer to which a communication protocol used for exchanging hypertext documents on the Internet is applied.

5 is a flowchart of a method for displaying a homepage of an IEEE 1394 network node device of the present invention, when two or more digital devices are connected on an IEEE 1394 network, and have a protocol layer identical to that of an Internet protocol stack above the 1394 communication layer. In the method of displaying a homepage of an IEEE 1394 network node device which displays a user's homepage of devices on a 1394 having a web server function in a device that performs a client function and provides operation information of all devices connected to the 1394 network, first, Immediately after the 1394 bus reset (step 500), it is checked whether the connected devices employ the Internet protocol and include the web server, so as to obtain the IP address of the device including the web server (step 510). The homepage is linked and displayed together with the image of the devices including the web server using the Internet address (step 520). Referring to FIG. 3 as an example, the digital TV 300 checks whether the remaining devices 310 to 330 are web-based and whether a web server is included. The digital TV 300 checks digital devices including a web server, obtains the Internet addresses of the devices, and uses the same to create and display an icon image linking the homepage of the device.

FIG. 6 is a flowchart illustrating a specific execution method of FIG. 5, which is also described with reference to FIG. 4. After the 1394 bus reset (step 600), the digital TV 300 checks whether the devices 310 to 330 employ an Internet protocol, that is, an IP capable node (step 610). This can be seen by examining the general standard conditions when the Internet protocol layer (IP layer) is raised above the 1394 layer. In operation 620, a check is made to see if a web server exists in a device employing an Internet protocol. It examines an area that indicates whether a web server exists on the configuration ROM, which is a collection of parameters and components used to configure a given program or operating system to perform 1394 communications. Able to know. The operation of indicating whether the web server exists in the configuration ROM should be performed before the operation of the present invention starts. If a web server is present, the address obtained by replacing the hardware address (or node address on 1394) of the device with the Internet address (IP address) through the Reverse Address Resolution Protocol (RARP) included in the area where the Internet protocol is defined. (Step 630). An icon image of the device is created using the Internet address, and the homepage of the device is linked to the image (step 640). This can be done using the following hypertext language (HTML).

<a href="(the IP address of the device)">

<img src = "(image address)"> </a>

In the HTML statement above, you can add more languages for limiting the size of the image. The result of the HTML sentence thus formed is displayed on the web browser screen of the digital TV 300 (step 650).

FIG. 7 illustrates a screen displayed on a web browser according to FIG. 6. For example, if the digital VTR 310 or the digital camcorder 320 is a device on which a web server is built, the web browser includes an icon image 700 representing the digital VTR 310 and an icon image 710 representing the digital camcorder 320. Is displayed. Since these icon images are linked to predetermined homepages provided by the web servers of the digital VTR 310 and the digital camcorder 320, respectively, when the user clicks the image icon, the homepage of the device is displayed on the web browser screen. Is displayed. The user may view the home page screen and check the function or operation state of the corresponding device or perform operation control.

On the other hand, the embodiments of the present invention described above can be written as a program that can be executed on a computer. And it can be implemented in a general-purpose digital computer for operating the program from a medium used in the computer. The media includes storage media such as magnetic storage media (eg CD-ROM, DVD, etc.) and carrier waves (eg transmission over the Internet).

The recording medium may include: in a network system having a protocol stack of FIG. 4, establishing a communication channel with a device having a client function (hereinafter referred to as a client device) with a device having a server function (hereinafter referred to as a server device); Transmitting a predetermined signal informing the change from the server device to the client device when the server device performs the predetermined operation and stops the operation or performs another operation; And program code that enables the computer to execute the step of the client device receiving a predetermined signal from the server device and displaying a state change of the server device on its screen. The program is located in a higher layer as the error prevention degree increases with respect to VTR data, and the upper layer and the lower layer have compatibility, and the upper layer is coded to have backward compatibility including the lower layer. In particular, the degree of error prevention is coded to increase for data of high importance that affects image quality.

And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

According to the present invention, a device in which a web server is searched among devices connected to the IEEE 1394 network is displayed, and the device is displayed on the screen. It is easy to understand and accordingly the user control is easy.

Claims (3)

When two or more digital devices are connected on an IEEE 1394 network, a device that provides operation information of all devices connected to the 1394 network by performing a client function with the same protocol layer as the Internet protocol stack above the 1394 communication layer. A method of displaying a home page of an IEEE 1394 network node device in which a user links and displays a home page of devices on a 1394 having a web server function, Immediately after a 1394 bus reset, a first step of checking whether an internet protocol is adopted and a web server is included in the connected devices to obtain an IP address of the device including the web server; And And displaying a home page of the IEEE 1394 network node device by linking and displaying the home page together with the images of the devices including the web server using the Internet address. The first step, Checking whether the device to be checked has adopted an Internet protocol (IP over 1394); If an internet protocol is employed, checking whether a web server exists; Obtaining an IP address defined in the internet protocol if a web server exists; And And creating an icon image of the corresponding device using the Internet address, and linking the homepage of the corresponding device to the image of the homepage of the IEEE 1394 network node device. The method of claim 2, wherein the second step, A home page display method of an IEEE 1394 network node device, characterized by displaying an icon image of a home page linked device on a web browser screen.