KR100319865B1 - Web video phone_ - Google Patents

Abstract

The present invention relates to a video call device, and more particularly, to a web video phone capable of video calls and internet access. Web video phone is a network transmitting and receiving means for transmitting and receiving voice signals, image signals through a network, Ethernet for transmitting and receiving voice signals, image signals over an internet connection, a modem for transmitting and receiving voice signals and image signals over a telephone network, and images from outside. From a signal input means for receiving a signal and an audio signal, the network transmission / reception means, the signal processing means for encoding or decoding an image signal and / or an audio signal received from the Ethernet, the modem and the signal input means, and the decoding means. Reproducing means for reproducing an output image signal and / or an audio signal, control means for controlling transmission and reception of image signals and / or audio signals inputted from said network transmission / reception means, said Ethernet, said modem and said signal input means, and Audio signal and / or image signal processed by the signal processing means It includes a storage means for selectively storing. According to the present invention, it is possible to provide compatibility with other types of web video phones, enable multi-tasking through the Internet, and make international video calls at low cost.

Description

Web video phones

The present invention relates to a video call device, and more particularly, to a web video phone capable of video calls and internet access.

1 is an external view of a typical web video phone.

2 is a block diagram showing the configuration of a conventional web video phone.

The web video phone is equipped with a color liquid crystal display (100), a keyboard (110), a card reader (not shown), a charge coupled device (CCD) camera 120, and the like. It is an information terminal.

As shown in FIG. 2, the web video phone includes a camera 200 that receives a video signal, a display unit 210, a video codec 220 that decompresses a video signal, and an audio codec 230 that decompresses a voice signal. , A host processor 240 for transmitting and receiving audio / video data and other control, a modem 250 for transmitting data, a keypad 260, a handset 270, and a speaker 280 for voice output.

In the related art, a video call is made by connecting a modem 250 in a voice call state through a general telephone network to combine a compressed video signal with a clear signal according to a control signal selected by a user at a predetermined bandwidth and transmit the voice signal to the other party. There is a button (not shown) to adjust the sharpness of the image on the keypad 260 of the structure to adjust the sharpness according to the transmission of the signal of the high frequency component and to check the image of the person he is currently sending Selfview) button. It uses X.25 communication protocol as an interface between Data Terminal Equipment (DTE) and Data Communication Equipment (DCE) and sends and receives data at 19.2kbps between two subscribers.

Conventionally, only a voice call is available in the case of an internet call using a LAN or a LAN by simply connecting a modem in a general telephone network. That is, Internet access through video telephony (H.324) and Point-to-Point Protocol (PPP) using a general telephone network that conforms to the video transmission standard (H.263) along with general telephone calls and using the same There was no terminal supporting both Internet video call (H.323) and Internet video call (H.323) using LAN.

In addition, they could not connect to the Internet to retrieve information, send and receive e-mail, or connect to a hose to do terminal work. At the same time, multitasking, such as Internet search, address book management, and e-mail verification, was not possible during regular telephone calls, and there was no e-commerce terminal equipped with a card reader in the telephone.

The technical problem to be achieved by the present invention is to provide a web video phone capable of voice calls and video calls through each network connection, and supports multi-tasking by connecting to the Internet.

1 is an external view of a typical web video phone.

2 is a block diagram showing the configuration of a conventional web video phone.

3 is a block diagram showing the configuration of a web video phone according to the present invention.

The web video phone for solving the technical problem to be achieved by the present invention comprises a network transmitting and receiving means for transmitting and receiving a voice signal, an image signal through a network; Ethernet for transmitting and receiving voice signals and video signals through an internet connection; A modem for transmitting and receiving a voice signal and a video signal through a telephone network; Signal input means for receiving an image signal and an audio signal from the outside; Signal processing means for encoding or decoding an image signal and / or an audio signal received from said network transmission / reception means, said Ethernet, said modem and said signal input means; Reproducing means for reproducing an image signal and / or an audio signal output from said decoding means; Control means for controlling transmission and reception of image signals and / or audio signals input from said network transmission / reception means, said Ethernet, said modem and said signal input means; And storage means for selectively storing the audio signal and / or the image signal processed by the signal processing means.

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

3 is a block diagram showing the configuration of a web video phone according to the present invention.

The apparatus shown in FIG. 3 includes a camera 300 for receiving image data, a video codec 305 for making image data input to the camera 300 into a standard stream, and a microphone 310 for receiving audio data. , An audio codec 315 for processing voice data received through the microphone 310, a speaker 320 for outputting voice data processed by the audio codec 315, and a picture decoded by the video codec 305. A display unit 325 for displaying data, a modem 330 for transmitting and receiving data through a general telephone network, an Ethernet 335 for internet access through a LAN, and a keyboard for receiving control signals from a user 340, keypad 345, touch screen panel 350, card reader 355 for receiving data from magnetic and smart cards, memory 360 for storing user information and programs, voice data And a host processor 365 for combining / separating transmission / reception control of image data and executing an application program.

Next, the present invention will be described in detail with reference to FIG. 3.

The present invention is a device that can be connected to the video phone and the Internet through a Public Switched Public Network (PSTN), Integrated Service Digital Network (ISDN) and Local Area Network (LAN) Video calls can be made with any device that supports H.263, a video data standard, as well as voice calls. Also, the web video phone of the present application can execute an internet application program through an internet connection through each network. Equipped with a touch screen panel 350 and a keyboard 340 that did not exist in the existing phone and provides a Graphic User Interface (GUI), the user can conveniently select the desired work to proceed.

As a function of the first video phone, a scroll bar (not shown) of the display unit 325 may be used to select the degree of movement of the motion and the image during the internet video call and the general telephone network video call. This is possible by controlling the signal processing of the video codec 305 by detecting the movement of the scroll bar in the host processor 365. In addition, you can select the Picture In Picture (PIP) function that allows you to view the screen of the other party and your screen at the same time, and it is possible to mute the video / audio to selectively send your own picture and voice to the other party. Do. When a third party requests an internet call during a general telephone call, the third party's information is displayed on the display unit 325, so that the user can select which call to receive. In addition to providing an automatic answering function for incoming calls, users can check the messages left by the caller. In addition, a phone number, an address, an Internet protocol address, and the like may be stored in the memory 360, an address book function, and a call time record for knowing when and with whom. The user may check the contents of the call recorded in the memory 360 by displaying it on the display unit 325 using the keyboard 340, the keypad 345, and the touch screen panel 350.

As a second Internet application program function, the user can frequently use the Internet search using the built-in internet browser after connecting to the Internet using Ethernet (335) for Point to Point Protocol (PPP) or LAN in case of LAN. Bookmark the site for more convenient internet browsing. In addition, it supports internet e-commerce and can check, write and send e-mails by connecting to an e-mail server and perform remote work after connecting to the server using a terminal program. In addition, as an additional function, it has a personal schedule management and alarm function and an electronic calculator function that can perform simple calculations. The personal schedule is stored in the memory 360 to check the day in the host processor 365 to inform the user, the calculator and time check alarm function is also supported by the host processor (365).

Using the function of the video phone, the image data is input from the camera 300 to generate video transmission standard data (H.263) from an encoder (not shown) inside the video codec 305, and the audio data is received from the microphone 310. Standard audio data (G.723) is generated by an encoder (not shown) inside the audio codec 315.

The host processor 365 synthesizes the video transmission standard data output from the video codec 305 and the standard voice data output from the audio codec 315 and transmits the synthesized signal through the modem 330.

The transmission rate is determined by negotiating the performance of each other while connecting the modem 330 (H.245). The receiving side receives a signal from the modem 330, separates the audio data and the image data from the host processor 365 and outputs them to the video codec 305 and the audio codec 315, respectively.

A decoder (not shown) inside the video codec 305 receives image data, decodes the image data into an NTSC video signal, and outputs the NTSC video signal to the display unit 325. A decoder (not shown) inside the audio codec 315 receives and decodes voice data and reproduces the same through the speaker 320.

When using the Internet function, except for the transmission and reception method as in a general telephone network through the modem 330. In general view, video connection (H.324) is made with the other party in the voice call state, whereas internet connection is made through internet connection by selecting the other party to make a call from the server after connecting to the ILS server. The transmission rate at this time depends on the state of the network. In the state of internet video telephony, video data and voice data are made differently from each other and transmitted / received through the User Datagram Protocol (UDP) to each socket. Sharpness can be adjusted according to the user's choice while transmitting and receiving data. When the user manipulates the scroll bar on the display unit 325, the user may view a screen with a fast but low definition or a slow but clear screen with the same transmission speed.

When making a video call while connected to the Internet through the modem 330, first, the user identities are simultaneously connected to the Internet Service Provider (ISP). Build your environment. Once you have an internet connection, it's like an internet videophone. All Internet-related tasks through the modem are the same as the Internet, except for access to an Internet service provider. When an internet video call is received during a video call using a general telephone network, the counterpart information is displayed on the display unit 325 and the caller is determined according to a user's selection. When a general call is received during the internet video call, the other party's information cannot be displayed, but the user can select and talk.

In the case of searching for information through the Internet, the display unit 325 selects a browser and works. In the case of e-mail and Tel Net, a user logs in to a host and performs mail transmission and reception.

In addition, it provides a personal address book including phone number, Internet address, e-mail address, call history, scheduler and calculator function to manage the schedule of the individual and inform the schedule at a specified time. The memo message of the incoming call is stored in the memory 360, and the recorded message can be played back as well as the change recording is also possible.

The electronic commerce is executed by receiving data from the magnetic card and the smart card by the card reader 355. A cardholder program is stored in the memory 360 to execute this program and secure electronic transactions (SET: Secure Electric). Transaction) protocol is supported.

The present invention is not limited to the above-described embodiments and can be modified by those skilled in the art within the spirit of the invention.

As described above, according to the present invention, it is possible to communicate with other video communication terminals by solving the problem of the existing video communication in which the transmitting side and the receiving side have to use the same video communication terminal. It can work.

In addition, it supports multi-tasking, allowing users to select a call according to their environment, internet search, and call history inquiry, address book management, and personal information management at the same time.

In addition, by using the Internet, international video calls can be made at low cost, thereby reducing costs.

Claims (7)

Network transmitting and receiving means for transmitting and receiving an audio signal and an image signal through a network; Ethernet for transmitting and receiving voice signals and video signals through an internet connection; A modem for transmitting and receiving a voice signal and a video signal through a telephone network; Signal input means for receiving an image signal and an audio signal from the outside; Signal processing means for encoding or decoding an image signal and / or an audio signal received from said network transmission / reception means, said Ethernet, said modem and said signal input means; Reproducing means for reproducing an image signal and / or an audio signal output from said decoding means; Control means for controlling transmission and reception of image signals and / or audio signals input from said network transmission / reception means, said Ethernet, said modem and said signal input means; And And storage means for selectively storing the audio signal and / or the image signal processed by the signal processing means. The method of claim 1, wherein the web video phone is And a user input means for inputting to control the control means from outside. The method of claim 1, wherein the web video phone is And a card reading means capable of executing electronic commerce. The method of claim 3, wherein the network transmission and reception means A web video phone characterized in that it is a public switched telephone network, an integrated telecommunication network and a local area network. 5. The method according to claim 4, wherein the public switched telephone network and the integrated telecommunication network of the network transmission / reception means connect to an internet service provider via a point-to-point protocol, and the local area network connects through the Ethernet. Web video phone. The method of claim 3, wherein the control means And a video signal transmitted / received through said network transmitting / receiving means, said Ethernet, said modem and said signal input means to be simultaneously reproduced by said reproducing means. The method of claim 3, wherein the regeneration means Web video phone, characterized in that for controlling the sharpness / movement at the time of reproduction of the image signal by a predetermined adjusting means.