KR20010035787A - Video/audio mailing method using access information to access video/audio mails - Google Patents

Abstract

PURPOSE: A video/audio mailing method using access information for accessing a video/audio mail is provided to add access information and transmit added access information and reproduce a video/audio mail using added access information from a video/audio server. CONSTITUTION: A video/audio file is recorded using an MPEG 1 and an MPEG 2, or a previously generated video/audio file is compressed using the MPEG 1 and the MPEG 2 to edit the compressed video/audio file and the video/audio file is registered in a VOD/AOD servers(301). A text body is written like a general E-mail, and a video/audio file to be transmitted is selected and access information of the video/audio file is written(302). A VA mail is transmitted and received(303,304). A desired video/audio file is set with reference to access information added to the VA mail(305). In the case of an MPEG video based on a text content of the body, it is judged after viewing a representative picture written by a JPEG. In the case of an MPEG audio, it is judged after hearing a part of contents(306). If the set video/audio file is a desired video/audio, a video or an audio is received from the VOD/AOD servers using an MPEG 1 player, an MPEG 2 player and a MP3 player(307).

Description

Video / audio mailing method using access information to access video / audio mail {VIDEO / AUDIO MAILING METHOD USING ACCESS INFORMATION TO ACCESS VIDEO / AUDIO MAILS}

The present invention provides a video / audio mailing method using access information for streaming video / audio mail from a video / audio server using access information for accessing video / audio mail, and a computer recording a program for realizing the method. The present invention relates to a recording medium which can be read by.

Conventionally, only VOD or AOD services are provided or only e-mail services are provided. In this case, the VOD system currently uses an Asynchronous Transfer Mode (ATM) network and MPEG-1 as a compression method. In addition, AOD systems transmit audio using the Internet. Here, VOD, which combines e-mail and VOD systems, uses Moving Picture Experts Group1 (MPEG1) and Moving Picture Experts Group2 (MPEG2).

However, there is a problem that does not include the audio mail combining the e-mail and AOD.

The following problems arise when sending a video or audio mail of MPEG1 or MPEG2 directly to an e-mail. That is, the receiving terminal needs a large amount of storage media, a large amount of transmission paths flowing through the digital network is wasted when unnecessary video / audio mail is received, and the storage medium / reception time / by downloading when unnecessary video / audio is received. That's a waste of play time.

In the conventional technology, subscribers connected to an ISDN line (typically 128 Kbps) by combining MPEG1 (usually 1.5 Mbps) or MPEG2 (usually several Mbps to tens of Mbps) video (actual audio is included by default) in an e-mail. Can't hear MPEG audio as well as MPEG (Moving Picture Experts Group) video, and it's also the case of fusing e-mail with copyrighted MPEG audio, such as MPEG-1 audio layer 3 (MP3), a high-quality audio compression technology. The user had a problem to be through a separate user interface and a separate network.

SUMMARY OF THE INVENTION The present invention devised to solve the above-mentioned problems is to realize a video / audio mailing method and method for attaching and transmitting access information (hereinafter referred to as access information) for accessing a video / audio mail. Its purpose is to provide a computer readable recording medium having recorded thereon a program.

The present invention also provides a video / audio mailing method for receiving and streaming a video / audio mail from a video / audio server by using the attached access information, and a computer recording a program for realizing the method. The purpose is to provide a recording medium that can be used.

1 is an exemplary configuration diagram of a video / audio mail system to which the present invention is applied.

2 is an explanatory diagram showing the flow of video / audio mail communication in a video / audio mailing method using access information for accessing video / audio mail according to the present invention;

3 is a flow diagram of an embodiment of a video / audio mailing method using access information for accessing a video / audio mail according to the present invention.

* Explanation of symbols for the main parts of the drawings

11,13: RAID 12,14: VOD and AOD Server

15: Video / Audio Editor 16: Video / Audio Mail Server

17: transport gateway 18: client

In order to achieve the above object, the present invention provides a video / audio mailing method using access information capable of accessing video / audio mail, and edits a video / audio file to a video on demand (VOD) / on-demand audio (AOD). Registering with the server; A second step of composing a video / audio (VA) mail; And a third step of transmitting a mail with access information attached to the text mail. In addition, a fourth step of receiving a video / audio mail with the access information attached; A fifth step of confirming access information of the video / audio file; And a sixth step of streaming said access information from an on-demand video / on-demand audio server.

In addition, the present invention provides a video / audio mail system having a processor, which has a function of editing a video / audio file and registering a video on demand (VOD) / on-demand audio (AOD) server; Create video / audio (VA) mail; And a computer readable recording medium having recorded thereon a program for realizing a function of transmitting a mail with access information attached to a text mail. A function of receiving a video / audio mail to which the access information is attached; Checking access information of the video / audio file; And a computer-readable recording medium having recorded thereon a program for further realizing a function of streaming the access information from an on-demand video / on-demand audio server.

The present invention makes it possible to receive MPEG audio even for a mail receiver using a line in a case where the bandwidth of the MPEG1 video is smaller than the bandwidth of the MPEG1 video, and also provides a function for simultaneously receiving MPEG2 audio together with the MPEG1 video and sending a mail. By providing an integrated interface that can be freely selected and sent regardless of whether video or audio is MPEG1 or MPEG2, the integrated services data network (ISDN), high-speed Internet (ADSL), and high-speed national network ( The demand for multimedia services can be accelerated through various digital high-speed networks such as ATM network and multimedia mobile phone (IMT-2000).

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of a video / audio mail system to which the present invention is applied.

First, a detailed function of each component of the hardware of the present invention is as follows.

As shown in FIG. 1, a video / audio mail system includes Redundant Arrays of Inexpensive Disks (RAID) 11, 13, VOD / AOD servers 12, 14, and a Video / Audio Editor (hereinafter referred to as VA Editor). 15, a video / audio mail server (hereinafter referred to as VA mail server) 16, a transmission gateway 17, and a client 18 are provided.

VOD server 12 is a typical on-demand video server. Whether the access information is managed by the VOD server 12 or the VA mail server 16 may vary depending on the case. In addition, whether the VOD / AOD servers 12 and 14 are placed on one server or separated may be different in some cases.

AOD server 14 is a typical on-demand audio server. Whether the access information is managed by the AOD server 14 or the VA mail server 16 may vary depending on the case.

That is, the VOD server 12 has a function of streaming MPEG1 and MPEG2 video, and the AOD server 14 has a function of streaming MPEG1 (including layers 1, 2, and 3) and MPEG2 audio.

The VA editor 15 may be directly connected to the client 18 or the VOD / AOD server 12, 14 or may be connected to the VOD / AOD server 12, 14 or the client 18 via a network. Basically, it has functions to encode / decode and edit video and audio of MPEG1 and MPEG2. The VA editor 15 of MPEG1 and MPEG2 is comprised separately.

The VA mail server 16 is a mail server of video / audio. Manage access information together with text mail. The access information includes file location information (information indicating which VOD / AOD server 12 or 14 the video / audio file is in) and information on access rights.

That is, the VA mail server 16 manages access information of audio / video files registered in the VOD / AOD servers 12 and 14. It also manages video / audio file ID (ID), file ownership, accessor list for each file, access rights such as read (receive by streaming, download) / write / delete, password, expiration date and so on.

The transmission gateway 17 is used when distributing and operating a video / audio mail system in a plurality of locations in a wide area through a high-speed network, and serves as a window with other sites. It also acts as a gateway for delivering mail to other networks.

Client 18 refers to both a video / audio mail client and a sending terminal and a receiving terminal. It can also be used to create or receive text mails, and to create access information (information related to access) of video / audio files that are directly or externally connected to the video / audio files. The sending terminal attaches the access information to the text mail, and the receiving terminal receives the video / audio mail from the VOD / AOD servers 12 and 14 by streaming using the access information.

In addition, the client 18 is a device for directly transmitting or receiving video / audio of MPEG1 and MPEG2. Basically, it has a video / audio player function of MPEG1 and MPEG2, and VA editor 15 can be connected or embedded as necessary.

Next, a detailed function of each component of the software of the present invention will be described.

The present invention provides registration software, video / audio management software, VA mail management software, access information creation software, access information management software, client software, and VOD / AOD server 12, 14 software to the VOD / AOD server 12, 14. It includes.

The registration software to the VOD / AOD servers 12 and 14 is software for registering video and audio which are MPEG1 and MPEG2. Register the file's name, expiration date, ownership, access rights, password, and so on. Access information can be created in advance at the time of registration.

At this time, access information creation software is used. In the case of video, a JPEG (Joint Photographic Expert Group) image can be used, and in the case of audio, a portion of the audio file can be made in a few seconds to several tens of seconds and used as access information. If the file to be attached is MPEG1 or MPEG2 audio only, that is, only MP3 audio is registered, a separate audio registration interface may be used.

VA management software has the ability to manage, modify, and delete video and audio locations (server IP (Internet Protocol) addresses, hard disk paths), expiration dates, access rights, passwords, and accessor lists.

VA mail management software provides an integrated environment for managing VA mail. VA mail creator, recipient, validity of VA mail, access right of VA mail, and material information (IP address) of attached video / audio mail can be managed and modified / deleted.

The access information creation software selects one or more frames as the representative picture of the video from the I frames instead of B and P frames while playing back MPEG1 and MPEG2 files, and reduces them to an appropriate size (to equal to or less than) and saves the JPEG. Make it a file. At the time of selecting the representative screen, the access information generating software selects and displays candidates which are likely to be the representative screen from among I frames.

The client 18 software basically has the ability to view a list of all attached access information. If the bandwidth of MPEG1 and MPEG2 is higher than that (normally MPEG1 is 1.5 Mbit / sec or less as specified), the existing MPEG-1 and MPEG-2 video / audio players are used.

On the other hand, unlike the prior art, it is possible to cope with MPEG-2 audio (multi-language and multiple channels are allowed) while receiving MPEG-1 video.

The VOD / AOD server 12,14 software has a VOD / AOD function of the prior art. Unlike the conventional technology, when the bandwidth less than MPEG1, for example, a client attempts to receive MPEG1 and MPEG2 video by connecting to an ISDN network, the VOD server 12 software transmits only MPEG1 and MPEG2 audio at 128 Kbps or less. In addition, it is also possible to receive MPEG2 audio (multilingual and multiple channels are allowed) while receiving MPEG1 video.

2 is an explanatory diagram illustrating a flow of video / audio mail communication in a video / audio mailing method using access information for accessing a video / audio mail according to the present invention.

As shown in FIG. 2, the client 18 creates a video or audio using the embedded / external or networked video / audio editor 15 and registers it with the VOD / AOD server 12, 14. (VOD and AOD servers can be separated).

To create a VA mail, it is created like a general text mail, and the access information (information necessary for accessing the video / audio file) of the video / audio mail is created.

Subsequently, in order to transmit the VA mail, an e-mail having access information attached to the text mail is transmitted, and in order to receive the VA mail, the text mail and the attached access information are received.

Finally, in order to play and play a video, the user accesses the access information and plays the necessary video / audio from the VOD / AOD servers 12 and 14 by streaming.

3 is a flowchart illustrating a video / audio mailing method using access information for accessing a video / audio mail according to the present invention.

As shown in FIG. 3, first, a video / audio file (MPEG1 or MPEG2) is edited and registered with the VOD / AOD servers 12 and 14 (301), and a VA mail is created (302). At this time, a text mail is created, a video / audio file to be transmitted is selected, and access information of the video / audio file is created.

Subsequently, when the VA mail is transmitted with the access information attached to the text mail (303), the VA mail with the access information is received (304), and the access information of the video / audio file is confirmed (305).

It is determined whether the checked information is a video / audio to be played (306).

If it is determined that the video / audio is to be played back (307), the process proceeds to step 306 in which it is determined whether the identified information is the video / audio to be played back.

Looking at the video / audio mail transmission method that combines the above-described e-mail with video on demand and audio on demand in detail as follows.

As shown in FIG. 3, the video / audio file is recorded and recorded in MPEG1 and MPEG2, or the previously created video / audio file is compressed and created and edited in MPEG1 and MPEG2, and then the video / audio file is recorded in the VOD / AOD server (12, 14). (301). Since the registration process is independent of video / audio mail, VOD / AOD service can be performed using the registered file.

Next, three things are needed to create a VA mail: First, a text body is created like a normal e-mail, a video / audio file to be transmitted is selected, and access information of the video / audio file is created (302).

At this time, the MPEG video file of the created access information forms a representative picture as a JPEG image, and the MPEG audio file makes a part of the audio file to be several seconds to several tens of seconds. Then, information necessary for access authority, location information, password, etc. is prepared.

Meanwhile, the VA mail is transmitted and received (303, 304) and the desired video / audio file is determined by referring to the access information attached to the VA mail (305).

Subsequently, it is determined whether the video or audio is to be played back. That is, in case of MPEG video based on the text content of the main body, it is judged by looking at the representative screen written in the JPEG. (306).

If it is determined that the video / audio is to be played, the video or audio is received from the VOD / AOD servers 12 and 14 by the MPEG1, MPEG2 player, MP3 player or the like (307).

If it is determined that the video / audio is desired to be played, the process proceeds to step 306.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes can be made in the art without departing from the technical spirit of the present invention. It will be apparent to those of ordinary knowledge.

As described above, the present invention reduces the disk capacity of the receiving terminal for storing unnecessary digital video / audio mails, prevents waste of transmission paths caused by the reception of unnecessary voice mails, and reduces costs incurred due to copyright application. In addition to this, it is possible to realize video / audio services using MPEG compression at a low cost.

In addition, the present invention can not only transmit video / audio together with access information, but also can receive MPEG audio even when MPEG video cannot be received due to a small line bandwidth. That is, when a receiver receiving a file written in MPEG1 is connected to a 128 Kbps ISDN network, even if the video of the MPEG file cannot be received, only MPEG audio can be listened to by streaming.

Claims (8)

In the video / audio mailing method using access information that can access the video / audio mail, A first step of editing the video / audio file and registering with a video on demand (VOD) / on-demand audio (AOD) server; A second step of composing a video / audio (VA) mail; And Third Step of Sending Mail with Access Information Attached to Text Mail Video / audio mailing method using the access information to access the video / audio mail, including. The method of claim 1, A fourth step of receiving a video / audio mail to which the access information is attached; A fifth step of confirming access information of the video / audio file; And A sixth step of streaming the access information from an on-demand video / on-demand audio server Video / audio mailing method using the access information to access the video / audio mail further comprising. The method of claim 2, The fifth step, A video / audio mailing method using access information for accessing a video / audio mail, wherein the predetermined video / audio file is determined using access information attached to the video / audio mail. The method of claim 2, The sixth step, A seventh step of determining whether the identified access information is a video / audio mail to be played; An eighth step of streaming the video / audio mail to an on-demand video / on-demand audio server according to the text mail, if it is desired to play it; And As a result of the determination of the seventh step, if the user does not want to reproduce the ninth step Video / audio mailing method using the access information to access the video / audio mail, including. The method according to any one of claims 1 to 4, The first step is, A tenth step of recording a video / audio file into a Moving Picture Experts Group1 (MPEG1) or a Moving Picture Experts Group2 (MPEG2), or compressing an already created video / audio file into an MPEG1 or MPEG2 file, and then editing the video / audio file; And Step 11 of registering the edited video / audio file with the on-demand video / on-demand audio server Video / audio mailing method using the access information to access the video / audio mail, including. The method of claim 5, The second step, A twelfth step of composing a text mail; A thirteenth step of selecting a video / audio file to transfer; And Fourteenth Step to Create the Information Needed to Access Video / Audio Files Video / audio mailing method using the access information to access the video / audio mail, including. In video / audio mail systems with processors, Editing a video / audio file and registering it with a video on demand (VOD) / video on demand (AOD) server; Create video / audio (VA) mail; And Function to send e-mail with access information attached to text mail A computer-readable recording medium having recorded thereon a program for realizing this. The method of claim 7, wherein Receiving a video / audio mail to which the access information is attached; Checking access information of the video / audio file; And The ability to stream the access information from an on-demand video / on-demand audio server A computer-readable recording medium that records a program for further realization.