KR20030096510A - A Multimedia Message Service system for Mobile communication network - Google Patents

Abstract

PURPOSE: An MMS(Multimedia Message Service) system interworking with a high speed mobile communication network is provided to download multimedia data through various interfaces, and to process the data in image file type, then to transmit or receive the data, thereby supplying various types of data. CONSTITUTION: An interface(11) communicates with a PC(10). A main control processor(12) controls a signal processing when various images and data are supplied from the interface(11). A receiving buffer(13) stores downloaded image and data files under control of the main control processor(12). An image buffer(14) distinguishes the stored image files, and stores the distinguished image files. A terminal processor(15) converts the stored image files. An image processor(16) performs a scaling operation for adjusting size of image pixels. A transmission buffer(18) stores finally completed image files. A communication processor(19) transmits standby image files and the data to an antenna(21).

Description

MMS system interworking with high speed mobile communication network {A Multimedia Message Service system for Mobile communication network}

The present invention relates to an MMS (Multimedia Message Service) system interworking with a high-speed mobile communication network, and more particularly, to download multimedia data through various interfaces capable of multimedia transmission in a PC environment and to form an image file for each wireless terminal company. The present invention relates to an MMS (Multimedia Message Service) system interworking with a high-speed mobile communication network capable of high-speed transmission and reception of data through a transmission modem after signal processing.

In the prior art, there is a technology called SMS (Short Message Service) that transmits a text message to a wireless terminal over the Internet. This technology delivers a limited-length text message to a mobile phone regardless of whether a mobile subscriber is calling. It is a service that can transmit characters of about 80 bytes to the LCD screen of a mobile phone, and it was impossible to transmit multimedia data such as video and music.

At the present level, the SMS system is a wired SMS, which simply receives desired text data from a user's PC and transmits it to a base station through a transmission modem. As shown in FIG. An apparatus 1, an SMS server 2 serving as a short message server, a dedicated line 3, a mobile communication company 4, and a base station 5 are provided.

In the conventional SMS system configured as described above, the SMS server transmits data of a specific customer in the DB to each mobile communication company using a modem and a dedicated line, and the data is transmitted to each user through the base station of the mobile communication company. .

However, in the case of the SMS system, in order to use services other than voice, such as text, data, video, and wireless Internet using a mobile communication network, there is an inconvenience in that a dedicated line must be established with all mobile carriers, and simply in the form of SMS Since it is a method of receiving the desired data from PC and transmitting it to the base station through the transmission modem, it is impossible to transmit it to the video transmission, and there is no solution in numerous video files, size and compatibility problems.

In addition, there was a difficulty in opening and expanding a circuit when bringing a dedicated circuit for each mobile carrier or installing a maintenance cost due to installation, expensive equipment rental, and maintenance cost of the equipment.

The present invention was devised to solve the above problems, and downloads multimedia data through various interfaces capable of multimedia transmission in a PC environment, processes the signal into a video file format for each wireless terminal company, and then transfers the data to a transmission modem. An object of the present invention is to provide a MMS (Multimedia Message Service) system interworking with a high-speed mobile communication network capable of high-speed transmission and reception.

1 is a schematic diagram showing a conventional wired SMS (Short Message Service) system.

Figure 2 is a schematic diagram showing a multimedia message service (MMS) system according to the present invention.

** Description of symbols for the main parts of the drawing **

1: DB storage device 2: SMS server

3: leased line 4: mobile carrier

5: base station 7: wireless terminal

10: PC 11: Interface unit

12: subject processing unit 13: receiving buffer

14: image buffer 15: processing unit for each terminal

16: image processor 17: OSD processor

18: transmission buffer 19: communication processing unit

20: transmission modem unit 21: antenna

22: LCD display

As a technical idea for achieving the object of the present invention, an interface unit for communicating with a PC having various operating systems capable of downloading various files in a Windows environment, and signal processing is provided when various images and data are provided from the interface unit. A main word processing unit for controlling, a receiving buffer for storing the downloaded image and data files under the control of the main word processing unit, an image buffer for dividing and storing the image files stored in the receiving buffer for each image file type, and the image buffer Terminal-specific processing unit for converting the image file stored in the form of each terminal manufacturer, an image processing unit for scaling to match the image pixel size of the actual terminal and the size stored in the buffer, and finally the completed image file can be sent A transmission buffer to be stored in a standby state, and the main controller An invention is provided that includes a communication processing unit for controlling to transmit an image file and data waiting to the transmission buffer to an antenna through a transmission modem unit under control.

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

First, as shown in FIG. 2, a configuration of a multimedia message service (MMS) system interworking with a high speed mobile communication network according to the present invention is as follows.

This system is provided with an interface unit 11 consisting of USB (USB), IEEE1394, and RS232 that communicates with a PC 10 having various operating systems capable of downloading various files in a Windows environment. A main control unit 12 for controlling signal processing, a reception buffer 13 for storing an image and a data file downloaded from the PC 10 under the control of the main control processing unit 12, and the reception buffer 13 An image buffer 14 for dividing and storing the image file stored in each image file type, a processor-specific processor 15 for converting the image file stored in the image buffer 14 into the form of each terminal manufacturer, and an actual terminal. An image processor 16 for scaling to match the image pixel size of the image to the size stored in the buffer, and to transmit necessary text messages trapped in the image file processed by the image processor 16; OSD processing unit 17 for creating a separate character on the right video signal, a transmission buffer 18 for storing and storing the finally completed video file, and the main control unit 12 under the control of the transmission And a communication processor 19 for processing to transmit the image file and data waiting to the buffer 18 to the antenna 21 through the transmission modem unit 20.

In addition, the interface 11 uses TCP / IP for remote image transmission using the Internet.

In addition, the LCD display unit 22 displays the data transmission state down through the interface unit 11, and also processes the signals processed by the image buffer 14, the processor 15 for each terminal, and the image processor 16. Status and monitoring the transmission status transmitted through the transmission modem unit 20.

Referring to the operation of the present invention having the same configuration as described above are as follows.

According to the present invention, various data that can be downloaded through various communication means (TCP / IP / Ethernet, USB, IEEE1394, RS-232C) in Windows 98, Windows 2000, Windows NT, and Windows Me environment can be transmitted by high-speed data. And MMS (Multimedia Message Service) system that can send and receive picture data and even video without interruption, the basic transmission medium supports IS-95C based on MSM5000 or higher chip using CDMA modem which is transmission modem It is a network environment, and in the case of GSM, it is composed of a network environment supporting GPRS Class 2 or higher.

That is, this system is a terminal capable of expressing multimedia data such as still images, photo data, and moving images composed of colors through such a transmission medium. It's a system.

Now look at the data processing flow of the present invention having the features as described above with reference to Figure 2 as follows.

The transmission of the image using the mobile communication network basically starts from the source transmission device that sends the image, which is a method of providing a direct image such as a CCD camera, but here the source through a tool capable of transmitting a general image such as a PC You will receive a video.

That is, as shown in Fig. 2, the system basically starts from downloading a desired file from the PC 10 in a Windows environment (including Windows 98, Windows 2000, Widows2000, and Windows Me).

In this case, USB or IEEE1394 or RS-232C is used as an interface communication means for transmitting and receiving image files and data. High-speed video is mainly downloaded to IEEE1394 or USB2.0 and serial communication (RS-232C in case of low-speed video or still image) is used. Will be downloaded by).

In addition, in case of remote image transmission using a network such as the Internet, TCP / IP is used.

The video and data files downloaded as described above are first stored in the reception buffer 13 which is a communication buffer under the control of the main control unit 12.

The image and data files stored in the reception buffer 13 are classified into a file type corresponding to each image which is primarily down, and are stored in the image buffer 14. For example, separate file types such as .wav, .asf, .asx, .mpg, .avi, .wma, .wmv, .jpg, .gif, and .bmp from each video file type. Will be stored in the buffer.

When the storing process of the image buffer 14 is completed, the main processor 12 also controls the image processing unit 15 to convert the image file for each type of terminal manufacturer.

In this case, the image file of each manufacturer inputted in advance is in the form of a library, and such a library is frequently upgraded.

After the conversion is completed, the image processing unit 16 under the control of the main control unit 12 continuously analyzes the size of the image and the type of the file displaying the actual terminal and performs the scaling operation to fit the screen size to the reference size. Done.

This operation is a process of matching the size of the video pixels of the actual terminal and the size stored in the buffer, which is the most important factor in reviving the actual video with the most efficient scaling without distortion. Can be.

In addition, if necessary, the OSD processing unit 17 performs an on-screen display (OSD) process, which is well known as a function of creating a separate character on an image signal when transmitting a text message necessary for an image file.

The final image file processed through the above process is sent to a separate transmission buffer 18 and exists as a standby file so that it can be transmitted at any time.

Therefore, when a command of the PC 10 or a remotely controlled host HOST drops, the main control unit 12 receives the command signal to control the communication processor 19 to process the image processed by the communication processor 19. Data signals are transmitted multiplex through the transmission modem 20 in the front end.

Finally, the video and data signals transmitted through the antenna of the transmission modem 20 are sent to the base station server, and to each terminal as a destination.

For reference, in the case of the transmission modem 20, the basic eight channels (8 ports) in one configuration can be extended by eight by configuring the stack (Stack) type if necessary.

As described above, the MMS (Multimedia Message Service) system interworking with the high-speed mobile communication network according to the present invention can transmit not only the existing short message but also video and various multimedia data, thereby transferring information between individuals and, moreover, between companies. Through various information transfer, it is possible to increase the marketing and business utilization of the company and improve productivity at low cost while providing various types of data compared to the conventional DM sending and wired SMS.

In addition, by imposing a basic multimedia screen editing and OSD (On Screen Display) function, there is an advantage that can also carry out the function of delivering a message through the video media.

In addition, regardless of the transmission modem CDMA or GSM, if only the speed capable of transmitting video in the basic network configuration is supported, there is an advantage that the video can be transmitted freely regardless of the place with only software support without additional hardware.

In particular, even if each terminal has a different video format, the internal software converts the video according to the format and transmits the video.

Claims (4)

An interface unit 11 for communicating with a PC 10 having various operating systems capable of downloading various files in a Windows environment, A main control unit 12 for controlling signal processing when various images and data are provided from the interface unit 11; A receiving buffer 13 for storing the downloaded image and data file under the control of the main control unit 12; An image buffer 14 for storing the image file stored in the reception buffer 13 according to each image file type; A processing unit 15 for each terminal for converting the image file stored in the image buffer 14 into a form of each terminal manufacturer; An image processor 16 for scaling to match an image pixel size of an actual terminal with a size stored in a buffer; The transmission buffer 18 waits and stores the final image file for transmission, and the image file and data waiting to be transmitted to the transmission buffer 18 under the control of the main control unit 12. MMS system in conjunction with a high-speed mobile communication network comprising a communication processing unit 19 for processing to transmit to the antenna (21) through. The MMS system of claim 1, wherein the interface unit 11 is selected as IEEE 1394 or USB for high speed video transmission, and RS-232C for low speed video or still video. . The method of claim 1, further comprising: an OSD processing unit (17) for creating a separate character on the video signal when transmitting the necessary text message in addition to the image file processed by the image processing unit (16) MMS system linked with communication network. The method according to claim 1, wherein the data transmission state down through the interface unit 11 is displayed, and the signal processing state and transmission modem processed by the image buffer 14, the processor 15 for each terminal, and the image processor 16 MMS system linked to the high-speed mobile communication network, characterized in that it further comprises a display unit (22) for monitoring the transmission status transmitted through the unit (20).