KR20010054742A - System and method for displaying a moving picture using paser - Google Patents

Abstract

PURPOSE: A motion image output system using a pager is provided to allow a pager to be applied to an image information business by compressing/transmitting directly transmitted motion image information to a server and decoding it in the pager to produce motion images. CONSTITUTION: The motion image output system using a pager includes a server(200) for receiving motion image select mode signal to select predetermined motion image and directly transmitted motion image signal and then compresses a motion signal corresponding to the motion image select mode signal and the motion image signal to transmit them to a base station(300). A pager(400) decodes the compressed motion image signal from the base station and then stores them to output the motion image by means of an output signal.

Description

System and method for displaying a moving picture using paser}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pager, and in particular, in order to further customize the pager function, a preset video information and video information directly transmitted using a digital camera are compressed and transmitted from a server, and the video is decoded in the pager to output a video The present invention relates to a video information output system and a video information output method using a pager applicable to a video information business.

The signals present in nature generally exist in analog form, a continuous signal form. These analog signals have a problem that deterioration easily occurs when used in a reproducing apparatus or a transmission apparatus, difficulty in compensating for error signals that may occur, and increasing system size when a system is configured. These problems can be improved by transforming the analog signal into a digital signal through sampling and quantization processing.

This digital signal is useful because it can achieve high definition video and high sound quality due to noise resistance, and can achieve small transmission power and multi-channelization. However, when the signal is processed digitally, the digital method has an adverse effect that the amount of data increases compared with the analog method. In order to reduce the impact on this increase in data, compression may be necessary. If there is no compression process, in the transmission of video information or audio information, in many cases, transmission is impossible because the channel does not provide the bandwidth required.

In particular, as the multimedia era enters, the data transmission process is limited, and thus the compression process of data is recognized as an inevitable process. Accordingly, many studies on data compression have been conducted (see US Patent 5,334,977, US Patent 5,285,498, US Patent 5,222,189, US Patent 5,040,217, Jayant and Noll, "Digital Coding of Waveforms").

For example, in the case of an image, in a gray-scale image having a resolution of 1,000 × 1,000 lines, each pixel is composed of 8 bits so that 256 different gradations of intensity may be applied to each pixel. intensity). In this case, without compression, the number of bits used to transfer the picture would reach 8 million bits. In the case of a general telephone line, about 9600 bits can be transmitted in one second, so it takes more than 10 minutes to transmit this picture. For example, in the case of audio, when sampled at 44.1 ㎑, each sampled information is sampled at 16 bits and has 65,536 gradations. It takes 73 seconds to see that real-time processing is impossible.

As described above, in the data transmission, the bit rate used for transmission is determined according to the characteristics of the transmission channel, and the bit rate for real time processing is determined. The determination of the transport channel has led to the development of devices for optimally reconstructing each transmitted data and compression schemes for coding the most efficient use of the data rate.

For this reason, many studies on data compression have been conducted. Waveform coding, transform coding, subband coding, fractal coding, predictive coding, Several methods, including motion estimation coding, have been developed, and efforts to create a standardization scheme for recording and transmitting video and audio have been undertaken since 1989 by ISO / IEC JTC1 / SC29 / WG11 (MPEG) under ISO. Started. Recently, these data compression methods have been used for commercialization of Philips' MPEG Audio 1 (ISO / IEC 11172) using DCC (Digital Compact Cassette) and Sony's MD (Mini-Disc). / MPEG 13818, MPEG Phase-4 for use in video phones or multimedia devices are being studied.

For reference, MPEG calls a work phase. And as an example, phase 2 is called MPEG2. Each phase usually lasts for four years. The standardized contents of MPEG2 are digital televisions, and international standards have been completed. In addition, standardization of MPEG4 dealing with application problems of multimedia has been progressed, and MPEG7 has already begun to deal with standardization of a representation method for retrieving digitized A / V information.

In general, a paging system is a wireless communication service, and provides a paging message or data service to a person carrying a pager using a public telephone network (PSTN) and a wireless paging system.

Many commercially available pagers to date generate audio signals or vibration signals to alert the user to call a message. In addition, pagers are becoming more specialized with the addition of features such as text messaging and voicemail.

Then, a conventional pager will be described with reference to the drawings.

5 is a block diagram schematically showing the basic configuration of a conventional pager. Referring to FIG. 5, an amplification unit 10 for receiving and amplifying radio waves transmitted from a base station, a demodulation unit 12 for demodulating the amplified signal and reproducing the original signal, and receiving and synchronizing the demodulated signal The decoder 14 for checking the code and outputting the received message, and the key input unit 20 having a key for data input / output and message output are responsible for the overall control of the above-described components and the components described later. It is connected to the processing unit 30.

In addition, the memory 40 including a RAM (RAM) for storing data input and output and received messages corresponding to the key input and a ROM (ROM) in which the system operating system is stored, the mode selected by the key input and The liquid crystal display device 50 (hereinafter referred to as LCD) for displaying the received message and the alarm generator 60 for notifying that a call has been connected are connected to the signal processor 30. At this time, the alarm generator 60 is composed of a light emitting diode (LED) 62, a ring tone generator 64 and a vibration generator 66.

A method of confirming a message of a conventional pager configured as described above will be described with reference to the drawings.

6 is a flowchart illustrating a message checking process of a conventional pager. As shown in FIG. 6, when a message, that is, call information, is received in a conventional pager (S11), a signal tone, light emission, and vibration are selected in a mode in which the received message is stored in memory and notified of the call. It is generated according to (S12).

Thereafter, it is determined whether a lead key input signal for checking a message has been generated by the user (S13). If it is determined that there is no lead key input signal as a result of determining whether the lead key input signal is generated (No), the message waiting state, that is, the storage state is maintained.

On the other hand, if it is determined that the lead key input signal has occurred (Yes), the message received from the memory is read (S14).

At this time, after the message is read, a process of comparing the received messages is sequentially performed. For example, the message is sequentially read from the recently received message (S15). Accordingly, the latest received message is output from the memory and displayed on the LCD panel in sequence (S16).

On the other hand, if you want to check the other message, by inputting the function key of the mode to output the message to be confirmed from the memory message is displayed on the LCD panel by the above method.

If there is no key input after the display, the call returns to the call information reception standby state after a set time, for example, 10 seconds (S17).

As such, the conventional pager has a disadvantage in that its function is limited to simple text message transmission and thus does not correspond to the multimedia era.

Accordingly, an object of the present invention is to compress a pager by using a predetermined video information and a video camera directly transmitted using a digital camera to decode the pager function, and to decode the pager to output a video by outputting a video. The present invention provides a video information output system and a video information output method using a pager applicable to a business.

1 is a configuration diagram schematically showing a video processing system of a pager according to an embodiment of the present invention;

2 is a block diagram schematically showing the configuration of a server according to an embodiment of the present invention;

3 is a block diagram briefly showing a configuration of a pager according to an embodiment of the present invention;

4A is a flowchart illustrating a video processing system of a pager according to an embodiment of the present invention;

4B is a flowchart illustrating a message checking process of a pager for outputting video information according to an embodiment of the present invention;

4c is a flowchart illustrating a periodic transmission / reception process according to an embodiment of the present invention;

5 is a block diagram briefly showing the basic configuration of a conventional pager;

6 is a flowchart illustrating a message checking process of a conventional pager.

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

200: server 210: data link unit

220: server memory 230: video coder

250: wireless transmission and reception means 300: base station

400: pager 470: video information memory

480: digital / analog converter 491: LCD

492: Speaker

In order to achieve the above objects, a video information output system using the pager of the present invention includes a video corresponding to the video selection mode signal and a video corresponding to a video selection mode signal for selecting a preset video and a directly transmitted video signal. A server for compressing a signal and transmitting the signal to a base station; And a pager which receives the compressed video signal from the base station, decodes the video signal, stores it, and outputs the video by the output signal.

The server may include: a server memory configured to store a video imaged in advance so as to output a video set by a video selection mode signal; A video coder for outputting and compressing a corresponding video from a server memory according to the video selection mode signal or for compressing a directly transmitted video signal; A main control unit which processes the compressed video signal while simultaneously processing the video selection mode signal and the video signal; And a wireless transmission and reception means for transmitting the compressed video signal output through the main controller.

In addition, the pager for outputting the video includes: a receiving unit for receiving, amplifying and demodulating the transmitted signal; A video decoder for decoding the demodulated signal and outputting video information including video information and audio information; A memory for storing video information output from the video decoder; A key input unit which forms an input key for outputting mode setting and input / output data; An alarm generator for notifying that the video information has been received; A signal processor for reading and controlling signals input and output from the decoder, memory, key input unit and alarm generation unit; A digital / analog converter for outputting video information stored in the memory and converting the video information into an analog signal; A display unit which displays the converted image information; And a speaker for generating sound by outputting the converted voice information.

In this case, the display unit may include a matrix type liquid crystal display device.

On the other hand, the video information output method using the pager according to the present invention includes a first step of transmitting a video selection mode signal and a video signal for selecting a predetermined video; A second step of outputting and compressing a preset video corresponding to the video selection mode signal and transmitting the compressed video to a base station; And a third step of receiving the decoded video signal from the base station, decoding the video signal, storing the decoded video signal, and outputting the video signal by the output signal.

In this case, the method may further include periodically transmitting different video signals preset by the scenario in the second step. The method may further include transmitting an acknowledgment signal corresponding to the periodically transmitted video signal to the server.

The third step may include: receiving and decoding video information; Storing the decoded video information as digitized video data; Determining whether the decoded signal is video information or character information; As a result of the determination, if the character information is displayed, a character; if the moving image information, outputs moving image data from a memory and converts it into an analog signal; More preferably, the video information converted to the analog signal, the image output and audio output step.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

First, in the present embodiment, a case of transmitting and receiving video information by MPEG compression method will be described.

1 is a configuration diagram schematically showing a video processing system of a pager according to an embodiment of the present invention. Referring to FIG. 1, the present invention broadly includes a calling means 100 such as a mobile terminal or a public telephone network, a server 200 provided in a telecommunication company system, and a base station 300 for relaying signals transmitted from the server 200. ), And a pager 400 capable of outputting a video.

A digital camera capable of capturing an image may be connected to the mobile terminal and the public telephone network, which are the calling means 100. On the other hand, if there is no digital camera, the caller can select the desired video through the key formed in the mobile terminal and the public telephone network according to the usage procedure required by the communication company system.

The server 200 receives a video selection mode signal for selecting a preset video and a video signal directly transmitted, and transmits the video corresponding to the video selection mode signal and the video signal to the base station 300 by MPEG compression. It is configured to be. This is illustrated well in FIG.

2 is a block diagram schematically showing the configuration of a server according to an embodiment of the present invention. Referring to FIG. 2, the server 200 preliminarily outputs a video selection mode signal output from the calling means and a data link unit 210 for linking the video signal, and a video set by the video selection mode signal. A server memory 220 storing an imaged video, a video coder 230 for outputting a corresponding video from the server memory 220 according to the video selection mode signal, or compressing a directly transmitted video signal, and the video The main control unit 240 for controlling the compressed video signal at the same time as the signal processing the selection mode signal and the video signal, and the wireless transmission and reception means 250 for transmitting the compressed video signal output through the main control unit 240 consist of.

In addition, the pager 400 is configured to receive and decode the compressed video signal from the base station 300, store it, and output the video by the output signal. This is illustrated well in FIG. 3.

3 is a block diagram schematically illustrating a configuration of a pager according to an embodiment of the present invention. Referring to FIG. 3, the receiver 410 receives and amplifies the radio wave transmitted from the base station 300, demodulates the amplified signal, and reproduces the original signal. The MPEG decoder 420 for outputting the received message and the key input unit 430 for forming a key for data input / output and message output are responsible for the overall control of the above-described components and the components described later. Is connected to.

In addition, a memory 450 including a RAM for storing data input / output and a received message corresponding to the key input and a ROM in which a system operating system is stored, and an alarm generating unit for notifying that a call has been received. 460 is connected to the signal processor 440. At this time, the alarm generator 460 is composed of an LED 462, a ring tone generator 464 and a vibration generator 466.

The configuration described above is the same as in the related art, and as a feature of the present invention, the video information memory 470 for storing the received video information as image data and audio data, respectively, and the video stored in the video information memory 470. A digital / analog converter 480 for outputting data to an analog signal, an LCD 491 for outputting the analog converted signal as an image, and a speaker 492 for outputting the analog converted signal as audio It is equipped with more. At this time, the video information memory 470 mainly consists of a ROM, and digitally stores video information and audio information.

The message confirmation process of the pager incorporating the video output function of the present invention configured as described above will be briefly described with reference to the drawings.

First, it is assumed that a plurality of moving image data characterizing a specific shape in photographs and other image data are already stored in the server memory by the muffing technique, and they are already MPEG compressed. In addition, it is assumed that the video data such as video, cartoon image and game data sequentially output from the server is already stored.

4A is a flowchart illustrating a video processing of a pager according to an embodiment of the present invention. As shown in FIG. 4A, the caller transmits a video selection mode signal and a video signal for selecting a preset video to a server through a mobile terminal and a public telephone network (S100).

The server determines whether the transmitted signal is a video selection mode signal or a video signal. As a result of the determination, a preset video corresponding to the video selection mode signal is output and transmitted to the base station, and if the video signal is compressed, it is transmitted to the base station (S200).

When the video signal is received in the pager by relaying the base station, the video signal is decoded, stored, and output by the output signal (S300).

4B is a flowchart illustrating a message checking process of a pager for outputting video information according to an embodiment of the present invention. As shown in FIG. 4B, when a message, that is, call information, is received in a pager having a video function (S310), when the call information is video information, MPEG decoding is performed (S312). Subsequently, in order to store the received message in the video information memory and to notify that a call has been made, a signal tone, light emission, and vibration are generated according to the selected mode (S314). That is, character information and video information are stored in the memory. At this time, the video information is divided into video information and audio information and stored, respectively, and digitized.

Thereafter, it is determined whether a lead key input signal for checking a message is generated by the user (S316). If it is determined that there is no lead key input signal as a result of determining whether the lead key input signal is generated (No), the message waiting state, that is, the storage state is maintained.

On the other hand, if it is determined that the lead key input signal has occurred (Yes), it is determined whether the received message is moving picture information (S318). If it is determined that the video information is the video information (Yes), the video data is read from the video information memory according to the lead key input signal (S320).

At this time, after the video data is read, the received video messages are sequentially compared. For example, the most recently received message is sequentially read (S322). Thereafter, the video data is converted into an analog signal and transmitted to the LCD and the speaker. Accordingly, the LCD outputs an image and the speaker outputs audio (S324).

If there is no key input signal for a set time after the video output, for example, 10 seconds, the process returns to the call information reception standby state (S326).

On the other hand, if it is determined in step S318 whether the video information is not determined as the video information (No), since it is general text information, a text message is displayed on the LCD (S328).

And, if you want to check the other message, by inputting the function number of the mode to enter the selection number corresponding to the message to be checked, the message is displayed on the LCD panel by the above method. The message can be confirmed by sequentially displaying the plurality of received messages on the LCD panel by the above method. Then proceed to step S326.

4c is a flowchart illustrating a periodic transmission / reception process according to an embodiment of the present invention. Referring to FIG. 4C, the server periodically outputs a video signal by a signal requested by the caller and the called party (S210). This means that the transmitted video signal is a signal to which a function of entertainment is added in addition to a function of calling a called party.

Meanwhile, a periodic video signal output from the server is received and output. At this time, the server determines whether an acknowledgment signal, which is a signal confirming that the video is received from the called party, is transmitted (S220). As a result of determining whether the acknowledgment signal is transmitted, if it is determined that the acknowledgment signal has been transmitted, the next video signal is transmitted (S230). In addition, if it is determined that the acknowledgment signal is not transmitted, the N-th video signal corresponding to the acknowledgment signal is not transmitted (S240).

This is to add a function such as, for example, Tamagotchi to the pager to enhance the entertainment function. In addition, when receiving images such as moving pictures and cartoons of several pages, the callee inputs an acknowledgment signal for receiving the next page, so that the image of the next page can be transmitted from the server.

Thereafter, if the setting has elapsed, if the setting time has elapsed, the procedure proceeds to step S210 of periodically outputting a video, and if the setting time has not elapsed, counting is continued (S250).

As described above, the video information output system and the video information output method using the pager according to the present invention has an advantage that it can cope with the multimedia era by outputting the video information from the pager. In addition, the pager may receive a cartoon, a game, etc., and thus may perform an entertainment function, or may also perform an entertainment function such as Tamagotchi by periodically transmitting different preset videos.

In addition, when the video information is received, it is possible to prevent the inconvenience and double economic burden of using the other communication device by checking the video information received by the pager directly without using another communication device.

The present invention is not limited to the above-described embodiment, and it is apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

Claims (8)

A server which receives a video selection mode signal for selecting a preset video and a video signal directly transmitted and compresses the video corresponding to the video selection mode signal and the video signal to a base station; A pager which receives the compressed video signal from the base station, decodes the video signal, stores it, and outputs the video by the output signal; Video information output system using a pager, characterized in that consisting of. The server of claim 1, wherein the server is: A server memory for storing a video imaged in advance so as to output a video set by a video selection mode signal; A video coder for outputting and compressing a corresponding video from a server memory according to the video selection mode signal or for compressing a directly transmitted video signal; A main control unit which processes the compressed video signal while simultaneously processing the video selection mode signal and the video signal; Wireless transmitting and receiving means for transmitting the compressed video signal output through the main controller; Video information output system using a pager, characterized in that consisting of. The pager of claim 1, wherein the pager which outputs the video comprises: A receiver which receives, amplifies, and demodulates the transmitted signal; A video decoder for decoding the demodulated signal and outputting video information including video information and audio information; A memory for storing video information output from the video decoder; A key input unit which forms an input key for outputting mode setting and input / output data; An alarm generator for notifying that the video information has been received; A signal processor for reading and controlling signals input and output from the decoder, memory, key input unit and alarm generation unit; A digital / analog converter for outputting video information stored in the memory and converting the video information into an analog signal; A display unit which displays the converted image information; A speaker for generating sound by outputting the converted voice information; Video information output system using a pager, characterized in that consisting of. The video information output system using a pager according to claim 3, wherein the display unit comprises a matrix type liquid crystal display device. Transmitting a video selection mode signal and a video signal for selecting a preset video; A second step of outputting and compressing a preset video corresponding to the video selection mode signal and transmitting the compressed video to a base station; Receiving a decoded video signal from the base station, decoding the video signal, storing the same, and outputting the video signal by an output signal; Video information output method using a pager, characterized in that consisting of. The method of claim 5, further comprising periodically transmitting different video signals preset by the scenario in the second step. 7. The method of claim 6, further comprising transmitting an acknowledgment signal corresponding to the periodically transmitted video signal to a server. The method of claim 5, wherein the third step; Receiving and decoding video information; Storing the decoded video information as digitized video data; Determining whether the decoded signal is video information or character information; As a result of the determination, if the character information is displayed, a character; if the moving image information, outputs moving image data from a memory and converts it into an analog signal; Outputting video and audio outputting video information converted into the analog signal; Video information output method using a pager, characterized in that consisting of.