KR100516930B1 - Internet video phone - Google Patents

Abstract

The present invention provides an internet video telephony function, a video on demand (VoD) and an audio on demand (AoD) receiving function, and a remote video surveillance server function together with an internet video telephony function using a single internet line. It is a wireless handset that handles processing, VoD and AoD reception processing, surveillance video transmission processing, voice codec processing, user interface processing, and up to seven connection with integrated stations using Bluetooth wireless link. It relates to an Internet video telephone, characterized in that configured.

Description

Internet video phone

The present invention relates to an Internet video telephone that provides an Internet wireless telephone function, a VoD (Video on Demand) and an Audio on Demand (AoD) reception function, and a remote video surveillance server function by using an Internet video telephone function. will be.

Prior arts that enable video telephony, VoD and AoD reception, and remote monitoring using the Internet include the following ones, each of which has the following problems.

The first is the Internet video phone, which consists of a camera, display, handset, and so on. The video phone has a handset that is wired to the body, making it difficult to call while moving like a landline phone. In addition, if you want to receive VoD and AoD using the Internet, a separate Internet set-top box is required for each reception.

The second is an Internet set-top box that can view VoD and AoD content using the Internet. Since this device is a dedicated device, if you want to use the Internet for video telephony or remote video surveillance, you must use a separate device for them.

The third is a web camera (also called a network camera) for remote video surveillance using the Internet. This web camera is also a dedicated device, so if you want to receive video calls over the Internet or receive VoD and AoD, you'll need to use a separate device for each one. There is a disadvantage that can not be.

The present invention solves this problem of the prior art by one integrated station connected to the Internet, such as Internet video telephony function, Video on Demand (VoD) and Audio on Demand (AoD) receiving function, remote video surveillance server function. It adds video processing and also adds audio processing that enables one integrated station and multiple wireless handsets to connect using a Bluetooth wireless link so that video and audio can be processed by a single integrated station. It provides a video telephone using the Internet.

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Hereinafter, the configuration of the Internet video telephone of the present invention will be described with reference to Figs. 1 is an overall configuration diagram of the video telephone of the present invention, FIG. 2 is an internal configuration diagram of the integration station 1 of FIG. 1, and FIG. 3 is an internal configuration diagram of each wireless handset 2 of FIG.

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The Internet videophone of the present invention consists of an integrated station 1 and a wireless handset 2.

The integrated station 1 is a fixed device, which includes a processor unit 11, a video input / output unit 12, an audio output unit 13, a real time clock (RTC) module unit 14, a Bluetooth RF transceiver unit 15, and a memory. Asynchronous Connction-Less (ACL), which is composed of the module unit 16 and the Internet connection unit 17, is one of the Bluetooth wireless link setting boxes, as shown in FIG. It releases, exchanges encoded audio data and user interface information, and performs Internet video telephony processing, VoD and AoD reception processing, and remote video surveillance server processing using an ADSL modem or Ethernet connection module.

Next, the wireless handset 2 is composed of a processor unit 21, a user input unit 22, a screen display unit 23, a memory module unit 24, a voice processing unit 25, and a Bluetooth RF transceiver unit 26. It performs voice codec function and user interface function, and makes voice calls wirelessly like a normal cordless phone through call setup and release using the integrated station 1 and Bluetooth wireless link, voice coded data, and user interface information exchange. Let's do it.

2, the internal configuration of the integrated station 1 of the Internet video telephone will be described.

The integrated station 1 includes a processor unit 11, a video input / output unit 12, an audio output unit 13, an RTC (Real Time Clock) module unit 14, a Bluetooth RF transceiver unit 15, a memory module unit ( 16) and the Internet connection 17.

The processor unit 11 is composed of a high speed processing processor module, a Bluetooth RF transceiver interface module, a Bluetooth baseband processing module, a memory control module and a general-purpose input / output unit operated by a program. Video on Demand and Audio on Demand (AoD) reception functions, a remote video surveillance server function, and a communication processing function for wireless data exchange with the wireless handset 2. In addition, it performs the function of generating menu data output to the screen for the user. Internet video telephony is implemented using H.323 or SIP (Session Initiation Protocol). Even in the case of an internet phone that does not use video, the H.323 method and the SIP method are used in the same way. Encoding and decoding for image data compression and decompression are implemented using a known international standard H.263 method or MPEG-4 method. VoD and AoD reception function is a function of receiving and playing contents from an external server through the Internet, and is implemented according to a communication processing method previously promised with the server. Decoding for image data restoration is implemented using the MPEG-4 scheme, and decoding for audio data restoration is implemented using the well-known international standard scheme (MP) -3 scheme or AAC scheme. The remote video surveillance server function is useful when the user wants to look around the internet video phone by using an information terminal for receiving surveillance video such as a PDA having a wireless Internet access function. It is implemented according to the communication processing method previously promised with the terminal. Coding for data compression of surveillance video is implemented using MPEG-4. Communication processing for wireless data exchange with the wireless handset 2 is an asynchronous connection (ACL), which is an asynchronous connectionless method that enables wireless link establishment between one master and seven slaves in a known Bluetooth standard. -Less) Implement using link method. Accordingly, the integrated station 1 corresponding to the master and the wireless handset 2 corresponding to the slave exchange the call establishment and release message, voice coded data, and user interface information through the ACL link. Each wireless handset 2 is identified using a predetermined Internet telephone number. In addition, the date and time information provided by the RTC module unit 14 is periodically transmitted to the wireless handset (2).

The video input / output unit 12 acquires image data from a CMOS image sensor or a video camera and delivers the image data to the processor unit 11 for compressing the image data, and the restored image transmitted from the processor unit 11. The data and menu data are converted into output signals and then displayed on the display device. As the display device, an LCD (LCD) monitor or a general TV is used.

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The Bluetooth RF transceiver unit 15 transmits a signal output through the Bluetooth RF transceiver interface of the processor unit 11 to the wireless handset 2, and transmits a signal received from the wireless handset 2 to the processor unit 11. It performs the function of passing to.

The memory module unit 16 includes a flash memory that stores a program to be executed by the processor unit 11 or data that requires long-term storage, and an SDRAM that stores temporary data.

The Internet connection unit 17 exchanges data over the Internet with other communication devices using a commercial ADSL modem or an Ethernet connection module. Next, the internal structure of the wireless handset 2 will be described with reference to FIG. 3.

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The wireless handset 2 is composed of a processor unit 21, a user input unit 22, a screen display unit 23, a memory module unit 24, a voice processing unit 25, and a Bluetooth RF transceiver unit 26.

The processor unit 21 is composed of a high speed processing processor module, a Bluetooth RF transceiver interface module, a Bluetooth baseband processing module, a memory control module, a general-purpose input-output unit, and the like, which are operated by a program. The processor unit 21 processes a keypad signal input from the user input unit 22, generates text information to be output through the screen display unit 23, and performs a voice codec function for compressing and restoring voice data. The voice data is exchanged with the voice processor 25, and various sound data to be output from the voice processor 25 are generated and transmitted to the voice processor 25, and a communication processing function for exchanging wireless data with the integrated station 1 is performed. Do this. The voice codec function for compressing and decompressing voice data is implemented using G.723.1 or G.729, which are well-known international standards. Communication processing for wireless data exchange with the unified station 1 is an asynchronous connection (ACL), an asynchronous connectionless method that enables wireless link establishment between one master and seven slaves in a known Bluetooth standard. -Less) to implement the link. It exchanges call setup and release messages, voice coded data, and user interface information through an ACL link with an integrated station 1 corresponding to a master. In addition, the date and time information is periodically received from the integration station (1).

The user input unit 22 includes a keypad and a driving element, and when a user presses the keypad, the user input unit 22 transmits a corresponding signal to the processor unit 21 through the general-purpose input / output unit of the processor unit 21. The keypad includes number buttons, call buttons, and other menu selection buttons.

The screen display unit 23 is composed of a character LCD (LCD) and a driving element, and displays a phone number, a caller ID, a phone book information, date and time information, and a function selected by a user. Indication of whether or not to process is performed.

The memory module unit 24 includes a flash memory for storing data that needs to be stored for a long time, such as a program to be executed by the processor unit 21 or a phone book, and an SDRAM for storing temporary data. The phone book registers important phone numbers or phone numbers of VoD and AoD servers.

The voice processor 25 converts the digital voice data and the various sound data transmitted from the processor 21 into analog signals and outputs them through a speaker, and converts the analog voice signals received from the microphone into digital data and converts them into digital data. 21 to carry out the function.

The Bluetooth RF transceiver unit 26 has a function of wirelessly transmitting a signal output through the Bluetooth RF transceiver interface of the processor unit 21 to the integrated station 1 and transmits a signal received from the integrated station 1 to the processor unit 21. ) Function.

4 shows an example of an outgoing call connection process for making an Internet phone call using the wireless handset 2.

Pressing the other party's Internet phone number on the wireless handset 2 sends a SETUP message to the integration station 1. The integrated station 1 transmits a dial-up request message to the other party through the Internet according to a known H.323 method or a Session Initiation Protocol (SIP) method, and sends a CALL PROC message to the wireless handset 2 to the user. Announce that it is. When the unified station 1 receives the in-call message from the other party, it transmits an ALERT message to the wireless handset 2, which generates a ring-back tone signal to the speaker. When the integration station 1 receives the dial-up completion message from the other party, the CONNECT message is transmitted to the wireless handset 2, and the wireless handset 2 receives the CONNECT ACK message to the integration station 1 to prepare for a voice call. Is done. Thereafter, voice coded data is exchanged between the integration station 1 and the wireless handset 2, and a voice call is made through exchange of voice data with the counterpart.

The same call-in connection process is performed even when making an Internet call using another wireless handset while a call is being made. Each wireless handset is identified using a predetermined Internet phone number.

FIG. 5 shows an incoming call connection process for receiving an Internet telephone call from the outside to the wireless handset 2. FIG.

When the integration station 1 receives a dial-up request message from the outside according to a known H.323 method or a Session Initiation Protocol (SIP) method through the Internet, a SETUP message including the Internet telephone number of the corresponding wireless handset 2 is sent. To the wireless handset 2. Caller ID (Caller ID) is included in SETUP message when caller verification service is provided, otherwise it is not included. The wireless handset 2 that receives the SETUP message generates a ring tone and sends an ALERT message to the unified station 1. Receiving the ALERT message, the unified station 1 delivers the message during the call to the other party. When the user answers the call, the user transmits a CONNECT message to the integrated station 1, and the integrated station 1 delivers a dial-up completion message to the other party, and delivers a CONNECT ACK message to the wireless handset 2 to prepare for a voice call. . Thereafter, voice coded data is exchanged between the integration station 1 and the wireless handset 2, and a voice call is made through exchange of voice data with the counterpart.

The same incoming call connection process occurs when a call is made to another wireless handset while the call is being made. Each wireless handset is identified using a predetermined Internet phone number.

6 illustrates an example of an outgoing call connection process for a video call.

If a video call is desired during the voice call, the wireless handset 2 delivers the video call request message to the integration station 1. The integrated station 1 receiving the message transmits a video call connection request message to the counterpart according to a known H.323 method or a Session Initiation Protocol (SIP) method. The other party delivers the video call connection response message to the unified station 1, and the unified station 1 receives the video call confirmation message to the wireless handset 2 to make the video call.

Once a video call is in progress, only other Internet handsets will be able to make Internet calls.

7 illustrates an example of an incoming call connection process for a video call.

When the other party wants to make a video call during the voice call, the other party sends a video call connection request message to the unified station 1. Receiving this, the integrated station 1 transmits a video call request message to the wireless handset 2 and asks for confirmation from the user. The wireless handset 2 delivers the video call confirmation message to the unified station 1 by the user's confirmation or automatic setting, and the unified station 1 receives the video call-up response message to the counterpart to receive the video call. Is done.

Once a video call is in progress, only other Internet handsets will be able to make Internet calls.

8 shows an example of a call release procedure in the case of ending a call.

When a call is disconnected from the wireless handset 2 during a voice or video call, the DISCONNECT message is forwarded to the integration station 1. The integrated station 1 that receives the message transmits a connection release request message to the counterpart via the Internet according to a known H.323 method or a Session Initiation Protocol (SIP) method. Subsequently, when the unified station 1 receives the disconnection completion message from the other party, the RELEASE message is transmitted to the wireless handset 2 and the received wireless handset 2 responds with the RELEASE COMPLETE message to release the call.

The same call release process occurs when the user hangs up while talking on another wireless handset.

9 illustrates an example of a connection and release process for VoD and AoD reception.

When the user selects the VoD and AoD reception modes, the wireless handset 2 forwards the VoD and AoD mode setting message to the unified station 1, and the unified station 1 receives the connection request message to the server. Upon receiving this, the server sends a user information input request message to the unified station 1 to request user information necessary for charging. When the wireless handset 2 transmits the user information message to the unification station 1 by the user's input, the unified station 1 receiving the information transmits the user information delivery message to the server. The server receiving this sends a channel menu message to the unified station 1. The wireless handset 2 transmits the VoD and AoD channel selection messages to the unified station 1 by the user input, and the unified station 1 which receives them transmits the channel selection message to the VoD server. The server receiving this delivers VoD and AoD data, thereby receiving VoD and AoD. The wireless handset 2 transmits the VoD and AoD termination request message to the unified station 1 by the user's input to terminate during reception, and the unified station 1 receives the VoD by sending a termination request message to the server. And AoD reception is terminated.

While VoD reception is taking place, only other Internet handsets can make Internet calls.

10 illustrates an example of a connection and disconnection process for transmitting surveillance video.

When the wireless handset 2 transmits the VoD mode setting message to the unified station 1 by the remote monitoring mode selection of the user, the remote monitoring server function is performed. When a user who wants to remotely monitor transmits a remote monitoring connection request message to the unified station 1 by using an information terminal for receiving a surveillance video from the outside, the unified station 1 which receives this transmits a user information input request message. The information terminal for receiving the surveillance video transmits a user information message to the unified station 1, and the unified station 1, which has confirmed that it is an appropriate user, transmits remote surveillance data to perform remote video surveillance. If the user wants to terminate during remote monitoring, the remote monitoring is terminated by sending a termination request message to the integration station 1. Although the preferred embodiment of the present invention has been described above, it should be noted that the present invention is not limited to this embodiment, but various modifications can be made without departing from the spirit of the present invention described above.

The present invention enables Internet video telephony, video on demand (VoD) and audio on demand (AoD) reception, and remote video surveillance over a single Internet line, and enables Internet telephony using up to seven wireless handsets.

In particular, even if you are using it as an Internet video call or for receiving VoD and AoD, if you have a separate wireless handset, up to seven internet wireless calls can be made simultaneously.

In addition, by providing a wireless handset for each individual, it can be used as a private telephone similar to a mobile phone, and can provide convenience for recording and using personal information such as a phone book.

Therefore, by using the Internet, it is possible to make phone calls inexpensively, and use the wireless handset to move freely. In addition, video telephony, VoD and AoD reception, remote monitoring, etc. can be used as a single product can be used as a convenient information communication terminal in the home.

1 is an overall configuration diagram of an internet video telephone.

2 is an integrated station configuration diagram of an Internet video telephone.

3 is a block diagram of a wireless handset of an Internet video telephone.

4 is an explanatory diagram of an outgoing call connection process for a voice call;

5 is an explanatory diagram of an incoming call connection process for a voice call;

6 is an explanatory diagram of an outgoing call connection process for a video call;

7 is an explanatory diagram of an incoming call connection process for a video call;

8 is a call release procedure.

9 is an explanatory diagram of a connection and release process for VoD and AoD reception;

10 is an explanatory diagram of a connection and disconnection process for transmitting surveillance video;

Claims (10)

In an internet telephony station of an internet video telephony consisting of one internet telephony station 1 and a plurality of wireless handsets for voice call, The Internet telephone station 1 includes a video input / output unit 12, a Bluetooth transceiver unit 15, a processor unit 11, and an Internet connection unit 17, The video input / output unit 12 transfers image data from an image capturing apparatus to the processor unit 11 and transmits image data transferred from the processor unit 11 to a display device; The Bluetooth transceiver unit 15 allows wireless communication between the processor unit 11 and the wireless handsets 2 in an asynchronous non-connection (ACL) scheme of the Bluetooth standard for transmission of voice data in a packet unit; The Internet connection unit 17 allows data communication with other communication devices over the Internet; The processor unit 11 compresses and restores audio signals inputted and outputted from the wireless handset 2 and video signals inputted and outputted from the video input / output unit 12, and the Bluetooth transceiver unit 15 is configured to transmit the wireless handsets. An Internet telephone station, characterized by performing communication processing for data communication with (2). 2. The Internet telephony station (1) according to claim 1, wherein the Internet telephone station (1) further comprises an audio output unit (13) for transmitting an audio signal to a speaker, and the processor unit (11) performs a restoration process for the VoD function. Internet telephone station. 2. The Internet telephone station (1) according to claim 1, wherein the Internet telephone station (1) further comprises an audio output unit (13) for transmitting an audio signal to a speaker, and the processor unit (11) performs a restoration process for the AoD function. Internet telephone station. 2. Internet telephony station according to claim 1, characterized in that the internet telephony station (1) performs processing for the remote image sensing function. 2. The Internet telephone station (1) according to claim 1, characterized in that the Internet telephone station (1) further comprises an RTC module unit (14) for providing date and time information so that the wireless handset (2) can reset the date and time. Internet phone station. In a wireless handset of an Internet videophone consisting of one Internet telephony station 1 and a plurality of wireless handsets for voice call 2, The wireless handset 2 includes a user input unit 22, a Bluetooth transceiver unit 26, a voice processing unit 25 and a processor unit 21, The user input section (22) causes a keypad input from a user to be transmitted to the processor section (21); The Bluetooth transceiver section 26 allows wireless communication between the processor section 21 and the Internet telephony station 1 in an asynchronous non-connection (ACL) scheme of the Bluetooth standard; The voice processing unit 25 converts the input digital voice data into an analog signal and outputs it to a speaker, and converts an analog voice signal from a microphone into a digital voice signal and outputs it to the processor unit 21; The processor unit 21 processes a keypad signal from the user input unit 22, compresses a voice signal output from the voice processing unit 25, transmits the compressed audio signal to the Bluetooth transceiver unit 26, and transmits the Bluetooth transceiver unit ( It recovers the compressed voice signal from 26 and transmits it to the voice processing unit 25, and performs a communication process for the Bluetooth transceiver unit 26 to perform data communication with the Internet telephone station (1). Wireless handset of internet video call. 7. The wireless handset of claim 6, wherein the wireless handset (2) further comprises a screen display (23) for displaying a telephone number pressed by the user and a calling party telephone number. 7. The wireless handset of claim 6, wherein the wireless handset (2) further comprises a memory module section (24) for storing a program and a telephone number executed by the processor section (21). A method of processing at an internet telephony station of an internet video telephony consisting of one internet telephony station 1 and a plurality of wireless handsets for voice call, The processing method includes a video input / output step 12, a Bluetooth transceiver processing step 15, a processing step 11, and an internet access step 17, The video input / output step (12) transfers the image data from the image capturing apparatus to the processing step (11), and transfers the image data transferred from the processing step (11) to the display device; The Bluetooth transceiver processing step (15) allows wireless communication in asynchronous Bluetooth connection (ACL) of Bluetooth standard for transmission of packet data between the Internet telephone station 1 and the wireless handsets 2; The Internet connection step 17 allows data communication with other communication devices over the Internet; The processing step 11 compresses and restores the audio signal inputted and outputted from the wireless handset 2 and the video signal inputted and outputted from the video input / output step 12, and the wireless handset in the Bluetooth transceiver processing step 15. And a communication process for causing data communication with the fields (2). A method of processing in a wireless handset of an internet videophone consisting of one internet telephony station 1 and a plurality of wireless handsets for voice call, The processing method comprises a user input step 22, a Bluetooth transceiver processing step 26, a voice processing step 25 and a processing step 21, Said user input step (22) causes keypad input from a user to be passed to said processing step (21); The Bluetooth transceiver processing step 26 allows wireless communication in asynchronous Bluetooth connection (ACL) method of Bluetooth standard for transmission of voice data in packet unit between the Internet telephone station 1 and the wireless handset 2; The voice processing step (25) converts the input digital voice data into an analog signal and outputs it to a speaker, converts an analog voice signal from a microphone into a digital voice signal and outputs it to the processor step (21); The processing step 21 processes the keypad signal from the user input step 22, compresses the voice signal output from the voice processing step 25, and transfers it to the Bluetooth transceiver processing step 26 and the Bluetooth signal. Restores the compressed voice signal from the transceiver processing step 26 to the voice processing step 25, and performs a communication process for causing the Bluetooth transceiver processing step 26 to perform data communication with the Internet telephone station 1; A method of processing a wireless handset of an internet video telephone, characterized in that.