WO2002021874A1

WO2002021874A1 - Method and system for processing moving picture data based upon vector graphic on wireless network

Info

Publication number: WO2002021874A1
Application number: PCT/KR2001/001456
Authority: WO
Inventors: Man-Soo Kim; Kyeong-Ryeol Park; Hwang-Seok Oh; Choong-Hwan Lee; Duk-Ho Chang; Soo-Ho Cho; Jung-Ju Choi
Original assignee: Digitalaria Co., Ltd.
Priority date: 2000-08-29
Filing date: 2001-08-29
Publication date: 2002-03-14
Also published as: AU2001282649A1; CN1449638A

Abstract

The present invention relates to a method and system of diminishing and transforming moving picture data based upon vector graphic for processing effectively them using wireless terminals. The method of processing moving picture based upon vector graphic of the present invention receives a moving picture based upon vector graphic and detects transform information from header of the moving picture. Then, it performs at least one transformation between the off-line transformation for wireless delivery and on-line transformation for the moving picture in accordance with kinds of the wireless terminals. The off-line transformation is for transmitting data through the wireless network and for playing the moving picture effectively. The on-line transformation is for transforming the moving picture in accordance with kinds of the wireless terminals.

Description

METHOD AND SYSTEM FOR PROCESSING MOVING PICTURE DATA BASED

UPON VECTOR GRAPHIC ON WIRELESS NETWORK

Technical Field

The present invention relates to a method and system of diminishing and

transforming a moving picture based upon vector graphic for processing effectively

them using wireless terminals.

Background Art

Until early 1990's, just some people could use a computer and some of that

could use the Internet as a means of communication; However, now is the time that

most of the people can use the Internet with a computer. An important reason of

popular Internet is due to a practical use of the World Wide Web (WWW).

At present, based upon the Internet with the Web, various services are provided,

for example electronic commerce, cyber stock dealings, electronic mail (e-mail) and

business for supplying contents like image data or moving pictures. Using the Internet,

people can easily accomplish various works that have been accomplished by physical

efforts of the people- Therefore, the Internet services leaps into most important

businesses.

Briefly, the Internet is a data communications network for performing data communication using a Local Area Network (LAN) or Public Switched Telephone

Network (PSTN) based upon a Transmission Control Protocol/Internet Protocol

(TCP/IP) between a plurality of unit networks identified by Internet Protocol (IP)

addresses and a plurality of hosts having private IP addresses within each unit network.

The host, which means a computer with a communication modem or phone line

connector, may communicate with other hosts by transmitting messages using these

unique IP addresses offered to each host. Users try to retrieve information from the

Internet so-called 'sea of information', get the desired information and make that to his

own information.

Recently, applications are highlighted, for example the GIF Animator or

Macromedia Flash for producing moving pictures, as well as the PhotoShop or Paint

shop for processing static images like photographs.

Especially, according to appearance of various characters, many netizens have

interest in a moving picture for expressing motions of the characters. Moreover, a

ratio of transmitting the moving picture such as a movie or animation is being grown by

increasing data transmission speed via a network and data processing speed in computer

systems coupled to the network.

FIG. 1 is a schematic illustration of general network for using the Internet of the

prior art. Referring FIG. 1, prior network for coupling to the Internet has a composition

that a user's Internet terminal 10, a web server 18 and an Internet Service Provider (ISP)

20 are interconnected for delivering data. The user's Internet terminal 10 receives

commands from the users for acquiring desired information. A wire network 12

connects the user's Internet terminal 10 with another terminal using the commands and

user's IP address. A gateway 14 transforms the commands and IP address, which are

provided from the wire network 12, to a specific data format for use on the Internet.

The Internet 16 acts as an agent to interconnect networks for accomplishing the

commands from the gateway 14. A web server 18 provides web information by

receiving the commands from the Internet 16. The ISP 20 is coupled to another

network using the commands from the Internet 16. An intranet 22 is coupled to the

Internet 16 through the ISP 20 and may include its own database 24.

Above network for coupling to Internet has a problem not to supply a movement

of the terminal. However, it is proposed a mobile Internet technology, which can

provide an Internet coupling service in a moving condition beyond a fixed position

because the existing IP addresses are used in the portable computers and mobile hosts

with mobile terminals due to a rapid development for an information technology and

electronics recently. Because it is used a wireless network using a mobile

communication system, for example a Personal Digital Assistants (PDA), cellular phone

or International Mobile Telecommunication 2000 (IMT2000), users can make a use of the wireless Internet in a moving condition by the mobile communication system.

FIG. 2 is a schematic illustration of a prior mobile Internet service system using

a wireless network.

Referring FIG. 2, in the prior mobile Internet service system, a wireless internet

terminal 30 transforms commands, which are received from an external command input

device such as a keypad or touch screen, to Radio Frequency (RF) signal suitable for a

specific data service and then transmits the RF signal. A base station 32 demodulates

the RF signal, which is provided from the wireless internet terminal 30. A wireless

network 34 supplies the RF signal together with an Identity (ID) of the wireless internet

terminal using a protocol for Internet service. A gateway 36 transforms the protocol

signal, which is provided from the wireless network 34 for the Internet service, to

TCP IP protocol signal for Internet connection and then supplies. The Internet 38 acts

as an agent to interconnect networks for accomplishing the commands of the gateway

36. A web server 40 provides web information according to the commands received

from the Internet 38. The mobile ISP 42 is coupled to another network using the

commands from the Internet 38.

The operation of the mobile Internet service system is described in below.

When a user inputs a command through an external command input device such as a

keypad or touch screen, the command is transformed to a specific format suitable for a protocol between the wireless network 34 and the gateway 36 in the wireless internet

terminal 30. The transformed command is transformed to a RF signal for transmission

via wireless channels by bandwidth spread or modulation and then transmitted to the

base station 32. The base station 32 receives and demodulates the RF signal provided

from the wireless internet terminal 30, and then transmits the demodulated RF signal to

a wireless network 34. The wireless network 34 transforms the RF signal to a specific

protocol language, for example a Handheld Device Markup Language (HDML),

Wireless Markup Language (WML) or mobility Hyper Text Markup Language

(mHTML) for Internet service on the wireless network and then supplies to a gateway

36. The gateway 36 transforms the input command to a TCP/IP format used on the

Internet. Thus, the users connect to the Internet 38 by generating an Internet protocol

address used on the Internet with an ID number of the wireless internet terminal 30.

Then, a command being inputted, users will be coupled to the web server 40 using

HTML, which is a protocol language supported to a web service on the Internet 38.

When a user inputs a command for acquiring specific information in another network,

the user can acquire the information by coupling to the mobile Internet Service Provider

42 using the TCP/IP of the Internet 38-

On the other hand, data transmission from the Internet 38 to the wireless internet

terminal 30 is accomplished in opposite sequence of the above. First, information

acquired from the web server 40 or mobile Internet Service Provider 42 on the Internet 38 is transmitted to the gateway 36. The gateway 36 transmits the information, which

is provided from the Internet 38, to the wireless network 34 using a protocol for HDML,

mHTML or WML. The wireless network 34 transmits the information to the wireless

internet terminal 30 according to the specific internet protocol address through the base

station 32.

Recently, there are many efforts to transmit various text data, image data, sound

data, color data or moving picture data through the wireless internet. However,

because performance of wireless communication device such as PDA or portable

telephone is inferior to a PC, transmission and processing services of the moving picture

are less provided. Therefore, limited some services of the moving picture are jus

provided using sequential bitmap image.

FIG. 3 is a schematic diagram of a wireless service system of a moving picture

of the prior art-

Referring FIG. 3, the wireless service system of a moving picture of the prior art

includes a Wireless Application Protocol (WAP) gateway 60, so called WAP proxy,

between a wireless terminal 70 corresponding to a client and a web server 50. The

WAP gateway 60 acts as a role of inter-transforming between a WAP-used signal and a

Hyper Text Transfer Protocol (HTTP)-user signal mutually. As it were, a request

signal for an Internet service is provided to the WAP gateway 60 from the wireless terminal 70. The WAP gateway 60 transmits the request signal, which is provided

using the WAP, to the web server 50 via the Internet. Then, the WAP gateway 60

transforms a response signal of the web server 50 to a WAP signal and then transmits

the WAP signal to a conesponding wireless terminal 70.

The wireless terminal 70 generates and transmits the request signal, and then

receives the response signal using a WAP browser 74 composed of a Wireless Markup

Language (WML), WML Script or extended Markup Language (XML). A wireless

Session Protocol (WSP)/Wireless Transaction Protocol (WTP) is used for delivering the

request signal or response signal between the wireless terminal 70 and the WAP

gateway 60. Thus, the WAP gateway 60 includes a HTTP/WTP transformer 62, which

is used for transforming a WTP signal from the wireless terminal 70 to a HTTP signal

and used for transforming a HTTP signal from the web server 50 to a WTP signal.

Also, it may include a protocol adapter 66 used for compatibility between a TCP/IP and

a WAP. Especially, the WAP gateway 60 may include a bitmap image transformer 64

used for transforming a sequential bitmap image, which is provided from the web server

50 by the HTTP, to a specific data format used on the wireless Internet. The image

data transformed by the bitmap image transformer 64 are transmitted to the wireless

terminal 70 from the WAP gateway 60 using a WTP. The users can confirm the

moving picture data on a display 76 in the wireless terminal 70 by the bitmap image

with being delivered from the WAP gateway 60 to the WAP browser 74 of the wireless terminal 70.

For the above operation, the web server 50 includes a contents server 54, which

has various multimedia data, and a HTTP communication device 52 used for

transmitting the sequential bitmap image data to the WAP gateway 60 using a HTTP.

However, there is a problem that wireless delivery based upon the wireless

terminal is not accomplished properly because the moving picture including bitmap

images has vast size and the quality is bad comparing to its size. As it were, effective

data delivery cannot be accomplished because the size of the moving picture is larger

than the transmission speed. Moreover, it is a problem that the moving picture

including bitmap images is not compatible between users who have wireless terminals.

Disclosure of the Invention

The present invention is intended to overcome the above-mentioned

disadvantages. Therefore, it is an object of the present invention to provide a method

and system for processing a moving picture; that make a possible to transmit data at

high speed and to provide moving picture with excellent quality, on the ground of

transforming and optimizing the moving picture data based upon vector graphic to

specific format suitable for wireless internet environment, and then transmitting them to

users' wireless terminals.

To achieve the above objects, a method for processing a moving picture based upon vector graphic of the present invention may comprise a step of detecting a Bezier

curve from the moving picture based upon vector graphic, a step of generating a first

straight-line and a second straight-line tangent to the Bezier curve by connecting at least

three control points that define the Bezier curve, a step of generating a third straight-line

tangent to the Bezier curve by interconnecting midpoints of the first straight-line and the

second straight-line, a step of dividing the Bezier curve into two sub Bezier curves on

the basis of the contact point between the Bezier curve and the third straight-line, a step

of repeating said step of dividing recursively for the sub Bezier curves, when an

approximate distance D, which is a distance between a crossing point of the first

straight-line and the second straight-line and the contact point on the Bezier curve by

the third straight-line, is not less than a pre-determined reference value, and a step of

substituting the first and second straight-lines that interconnect at least three control

points of each sub Bezier curve, which is divided by said step of dividing, for

corresponding sub Bezier curve, when each approximate distance D for each sub Bezier

curve is not exceeding a pre-determined reference value.

The moving picture based upon vector graphic may be made by the

Macromedia Flash.

The method for processing moving picture based upon vector graphic may

further comprise the step of constructing a triangle with the first and second straight-

lines substituting the sub Bezier curve and a base line that is a segment interconnecting tangent points, which the first and second straight-lines are tangent to the sub Bezier

curve, and a step of substituting a line involving the base line for the first and second

straight-lines, when two intersecting angles related to the base line are not exceeding a

pre-determined reference angle.

The reference angle may have a value between 0 and π radian.

Moreover, a method for processing events based upon vector graphic of the

present invention may comprise a step of detecting location information of a mouse and

input information of mouse buttons within the moving picture based upon vector

graphic, a step of detecting a plurality of state information of control buttons of the

moving picture that control the moving picture displayed in a screen in accordance with

a location of the mouse and inputs of the mouse buttons, a step of deleting some state

information that does not correspond to a pre-determined directional button and input

button selected for controlling the moving picture in the wireless terminal among the

plurality of state information of the control buttons of the moving picture, a step of

recognizing locations of the control buttons of the moving picture displayed in the

screen of the wireless terminal and then forming a button network that interconnects the

control buttons of the moving picture, a step of receiving at least one button motion

among the directional buttons and the input buttons of the wireless terminal, and a step

of performing a function of the control button of the moving picture with a specific

location on the button network, in accordance with a motion of at least one button among the directional buttons and the input buttons of the wireless terminal.

The state that does not correspond to a directional button and input button in the

wireless terminal may be UP or HIT AREA; from UP which defines an operation of the

Flash button when a pressed left button of a mouse is relaxed, DOWN which defines an

operation of the Flash button when a left button of a mouse is just pressed, OVER

which defines an operation of the Flash button when a mouse pointer is on the Flash

button, and HIT AREA which defines a region of action of the Flash button.

Moreover, a method for processing frame data based upon vector graphic of the

present invention may comprise a step of detecting a plurality of frame information

composed of a moving picture, a step of computing characteristic values of the motion

for each frame, a step of computing sequentially variations of the characteristic value of

the motion for continuous two frames, and a step of deleting one frame of the two frame,

when the variation of the characteristic value of the motion is not exceeding a pre¬

determined reference variation.

The step of computing characteristic values of motion for each frame may

comprise a step of constructing a matrix using screen information for each frame as

elements, and a step of computing a determinant of the matrix.

The screen information for each frame may comprise at least one selected from a

group consisting of rotation information, scale information and transition information.

Moreover, a method for processing moving picture based upon vector graphic of the present invention may comprise a step of detecting elements that constitute a

moving picture, a step of detecting frame display elements, which are for displaying

characters on a screen, among the elements, a step of detecting detailed elements in the

frame display elements, a step of deleting the frame display element, when the detailed

elements of the frame display element are just composed of space arrangement elements

for ananging the characters in the space.

The method for processing moving picture based upon vector graphic may

further comprise the step of deleting background music element used for defining the

background music among elements constituting a moving picture.

The method for processing moving picture based upon vector graphic may

further comprise the step of transforming curve data, which constitute a moving picture,

to straight-line data.

The method for processing moving picture based upon vector graphic may

further comprise the step of transforming mouse events, which constitute a moving

picture, to button events of the wireless terminal.

The method for processing moving picture based upon vector graphic may

further comprise the step of deleting one frame of continuous similar frames among a

plurality of frames, which constitute the moving picture.

The step of deleting one frame of continuous similar frames among a plurality

of frame constituting the moving picture may comprise a step of detecting a plurality of frame information constituting a moving picture, a step of computing characteristic

values of the motion for each frame, a step of computing sequentially variations of the

characteristic value of the motion for continuous two frames, and a step of deleting one

frame of the two frame, when the variation of the characteristic value of the motion is

not exceeding a pre-determined reference variation.

The method step of deleting elements or frames may comprise a step of

registering elements or frames to be deleted in a deletion list, and a step of deleting

selected elements or frames at regular interval among those of registered in the deletion

list.

The method for processing moving picture based upon vector graphic may

further comprise the step of recording a result of transforming the moving picture in the

header of the moving picture-

Moreover, a method for processing Macromedia Flash moving picture of the

present invention may comprise a step of detecting tag information of the Macromedia

Flash moving picture, a step of deleting a ShowFrame tag within the Macromedia Flash

moving picture when only PlaceObject tags exist in the ShowFrame tag, a step of

transforming curve data in a shape tag within the Macromedia Flash moving picture to

straight-line data, and a step of transforming a mouse event within the Macromedia

Flash moving picture to a button event of the wireless terminal.

The shape tags may comprise at least one selected from a group consisting of a DefineShape tag, a DefineShape2 tag, a DefineShape3 tag and a DefineMorphShape tag.

The button tags may comprise at least one selected from a group consisting of a

DefineButton tag, a DefineButton2 tag, a DefineButtonCxform tag and a

DefineButtonSound tag.

Moreover, a method for processing moving picture based upon vector graphic

may comprise a step of collecting kind information about wireless terminals, a step of

detecting elements of a moving picture to be transmitted to the wireless terminal, a step

of determining whether at least one selected from a group consisting of color

information, font information, image information and sound information conesponds to

the kind of the wireless terminal that receives the moving picture, when the elements

include at least one selected from a group consisting of color information, font

information, image information and sound information, and a step of transforming at

least one selected from a group consisting of color information, font information, image

information and sound information so as to be suitable for a kind of the wireless

terminal, when at least one selected from a group consisting of color information, font

information, image information and sound information does not correspond to the kind

of the wireless terminal.

The kind information of the wireless terminal may comprise at least one selected

from a group consisting of a size of display screen, a number of colors to be displayed

and sound format to be outputted- Moreover, a method of processing Macromedia Flash moving pictures of the

present invention may comprise a step of collecting kind information about wireless

terminals, a step of detecting tags of the Macromedia Flash moving picture to be

transmitted to a wireless terminal, a step of determining whether at least one selected

from a group consisting of a shape tag, font tag, bitmap tag and sound tag corresponds

to the kind of the wireless terminal that receives the Macromedia Flash moving picture,

when the Macromedia Flash moving picture include at least one selected from a group

consisting of a shape tag, a font tag, a bitmap tag and a sound tag, and a step of

transforming at least one selected from a group consisting of a shape tag, font tag,

bitmap tag and sound tag so as to be suitable for a kind of the wireless terminal, when at

least one selected from a group consisting of a shape tag, a font tag, a bitmap tag and a

sound tag does not correspond to the kind of the wireless terminal-

The font tags may comprise at least one selected from a group consisting of a

DefineFont tag, a DefineFont2 tag and a DefineFontlnfo tag.

The bitmap tags may comprise at least one selected from a group consisting of

a DefineBits tag, a DefineBitsJPEG2 tag, a DefineJPEG3 tag, a DefineBitsLossless tag,

a DefineBitsLossless2 tag and a JPEGTables tag.

The sound tags may comprise at least one selected from a group consisting of a

DefineSound tag, a SoundStreamBlock tag, a SoundStreamHead tag and a

SoundStreamHead2 tag. Moreover, a method for processing moving picture based upon vector graphic

of the present invention may comprise a step of receiving a moving picture based upon

vector graphic, a step of detecting transform information from the header of the moving

picture, a step of determining whether at least one transformation between an off-line

transformation for wireless delivery and on-line transformation for kinds of the wireless

terminals is accomplished to the moving picture using the transform information, and a

step of performing at least one transformation between the off-line transformation and

on-line transformation for the moving picture in accordance with the result of

determination.

The transform information may be what indicates the result of at least one

transformation between the off-line transformation and on-line transformation.

Moreover, a method for processing Macromedia Flash moving picture of the

present invention may comprise a step of receiving a Macromedia Flash moving picture,

a step of detecting transform information from the header of the Macromedia Flash

moving picture, a step of determining whether at least one transformation between an

off-line transformation for wireless delivery and on-line transformation for kinds of the

wireless terminals is accomplished to the Macromedia Flash moving picture using the

transform information, and a step of performing at least one transformation between the

off-line transformation and on-line transformation for the Macromedia Flash moving

picture in accordance with the result of determination. Moreover, a system for processing moving picture based upon vector graphic so

as to be suitable for wireless terminals coupled with a gateway which transmits the

moving picture based upon vector graphic to the wireless terminals may comprise a

database with moving pictures based upon vector graphic, an off-line transformer for

transforming the moving picture that selected from said database for a wireless delivery,

and a wire protocol communication device for transmitting the moving picture based

upon vector graphic, which is transformed by said off-line transformer, to the gateway

via a wire network, wherein said off-line transformer may comprise an element detector

for detecting frame display elements, which are for displaying characters on a screen,

among elements of the moving picture and an element controller for deleting the frame

display element, when the frame display element are just composed of space

arrangement elements for ananging the characters in the space.

The off-line transformer may further comprise a curve transformer for

transforming curves within the moving picture to straight-lines.

The curve transformer may comprise a curve detector for detecting a Bezier

curve from the moving picture based upon vector graphic, an approximate straight-line

generator for generating a first straight-line and a second straight-line tangent to the

Bezier curve by connecting at least three control points that define the Bezier curve and

for generating a third straight-line tangent to the Bezier curve by interconnecting

midpoints of the first straight-line and the second straight-line, a curve divider for dividing the Bezier curve into two sub Bezier curves on the basis of the contact point

between the Bezier curve and the third straight-line, a curve division controller for

repeating said step of dividing recursively for the sub Bezier curves, when an

approximate distance, which is a distance between a crossing point of the first straight-

line and a second straight-line and the contact point on the Bezier curve by the third

straight-line, is not less than a pre-determined reference value, and a straight-line

processor for substituting the first and second straight-lines that interconnect at least

three control points of each sub Bezier curve, which is divided by said step of dividing,

for conesponding sub Bezier curve, when each approximate distance for each sub

Bezier curve is not exceeding a pre-determined reference value.

The off-line transformer may further comprise an event transformer for

transforming mouse events constituting a moving picture to button events of the

wireless terminal.

The event transformer may comprise a button selector for selecting a directional

button and input button among a plurality of buttons attached to the wireless terminal, a

state controller for deleting some state information that does not correspond to a pre¬

determined directional button and input button in the wireless terminal among a

plurality of button states for the moving picture, which have actions by receiving

locations of a mouse and inputs of the mouse button, a network constructor for

recognizing a button location of the moving picture displayed in a screen of the wireless terminal, and then forming a button network that interconnects the buttons of the

moving picture, and a moving picture processor for selecting and performing a function

of the button of the moving picture with a specific location on the button network, in

accordance with a motion of the directional button and the input button of the wireless

terminal.

The system for processing moving picture based upon vector graphic may

further comprise a frame controller for deleting one frame of continuous similar frames

among a plurality of frames constituting the moving picture.

The frame controller may comprise a frame detector for detecting a plurality of

frame information constituting a moving picture, an arithmetical processor for

computing characteristic values of the motion for each frame, and for computing

sequentially variations of the characteristic value of the motion for continuous two

frames, and a frame processor for deleting one frame of the two frame, when the

variation of the characteristic value of the motion is not exceeding a pre-determined

reference variation.

The system for processing moving picture based upon vector graphic may

further comprise a deletion list controller for registering elements or frames to be

deleted in a deletion list, and for deleting selected elements or frames at regular interval

among those of registered in the deletion list.

The system for processing moving picture based upon vector graphic may further comprise a header controller for recording a result of transforming the moving

picture in the header of the moving picture.

Moreover, a gateway system for processing moving picture based upon vector

graphic of the present invention so as to be used in wireless terminals by coupling to a

server which is for delivering the moving picture based upon vector graphic may

comprise an off-line transformer for detecting a moving picture based upon that

transmitted from the server and for transforming the moving picture for wireless

delivery, and a wireless protocol communication device for transmitting the moving

picture based upon vector graphic, which is transformed by said off-line transformer, to

user's wireless terminal through a wireless network, wherein said off-line transformer

may comprise an element detector for detecting frame display elements, which are for

displaying characters on a screen, among elements of the moving picture, and an

element controller for deleting the frame display element, when the frame display

element are just composed of space arrangement elements for arranging the characters

in the space.

Moreover, a gateway system for processing moving picture based upon vector

graphic of the present invention so as to be used in wireless terminals coupled with a

server which is for delivering the moving picture based upon vector graphic may

comprise a database with kind information about wireless terminals, an on-line

transformer for transforming the moving picture based upon vector graphic that transmitted from the server so as to be used in the wireless terminal in accordance with

kind of the wireless terminal, and a wireless protocol communication device for

transmitting the moving picture based upon vector graphic, which is transformed by

said on-line transformer, to the wireless terminal through a wireless network, wherein

said on-line transformer may comprise an element detector for detecting elements of a

moving picture to be transmitted to a wireless terminal, at least one transformer selected

from a group consisting of a color transformer, which is for transforming a color

element so as to be suitable for a kind of the wireless terminal among the elements of

the moving picture, a font transformer, which is for transforming a font element to

shape information by dividing the font element so as to be suitable for a kind of the

wireless terminal, when the font information among the elements of the moving picture

does not correspond to the kind of the wireless terminal, an image transformer, which is

for transforming an image element to pixel information so as to be suitable for a kind of

the wireless terminal among the elements of the moving picture, and a sound

transformer, which is for transforming a sound element so as to be suitable for a kind of

the wireless terminal among the elements of the moving picture.

Moreover, a gateway system for processing moving picture based upon vector

server which is for delivering the moving picture based upon vector graphic may

comprise a database with kind information about wireless terminals, a transformation judger for determining whether the moving picture based upon vector graphic, which is

transmitted from the server, has been accomplished an off-line transformation by

detecting transform information, an off-line transformer for transforming the moving

picture, which has not been accomplished the off-line transformation, so as to be

suitable for a wireless delivery in accordance with the result of transforming, an on-line

transformer for transforming the moving picture, which has been accomplished the off¬

line transformation, so as to be used in the wireless terminal in accordance with a kind

of the wireless terminal, a wireless protocol communication device for transmitting the

moving picture based upon vector graphic, which is transformed by said off-line

transformer or on-line transformer, to the wireless terminal through a wireless network,

wherein said off-line transformer may comprise an element detector for detecting frame

display elements, which are for displaying characters on a screen, among elements of

the moving picture, and an element controller for deleting the frame display element,

when the frame display element are just composed of space arrangement elements for

ananging the characters in the space, and wherein said on-line transformer may

comprise an element detector for detecting elements of a moving picture to be

transmitted to a wireless terminal, at least one transformer selected from a group

consisting of a color transformer, which is for transforming a color element so as to be

suitable for a kind of the wireless terminal among the elements of the moving picture, a

font transformer, which is for transforming a font element to shape information by dividing the font element so as to be suitable for a kind of the wireless terminal, when

the font information among the elements of the moving picture does not correspond to

the kind of the wireless terminal, an image transformer, which is for transforming an

image element to pixel information so as to be suitable for a kind of the wireless

terminal among the elements of the moving picture, and a sound transformer, which is

for transforming a sound element so as to be suitable for a kind of the wireless terminal

among the elements of the moving picture-

Moreover, a wireless terminal for processing moving picture based upon vector

graphic transmitted from a gateway in accordance with a kind of a wireless terminal of

the present invention may comprise a memory system with kind information about

wireless terminals, a transformation judger for determining whether the moving picture

based upon vector graphic, which is transmitted from the gateway, has been

accomplished an on-line transformation by detecting transform information, an on-line

transformer for transforming the moving picture, which has not been accomplished the

on-line transformation, so as to be used in the wireless terminal in accordance with a

kind of the wireless terminal on the basis of the result of transforming, a moving picture

controller for processing the moving picture based upon vector graphic, which is

transformed through the on-line transformer, so as to be recognized by a user, and a

display for displaying the moving picture on a screen by the process of the moving

picture controller, wherein said on-line transformer may comprise an element detector for detecting elements of a moving picture to be transmitted to a wireless terminal, at

least one transformer selected from a group consisting of a color transformer, which is

for transforming a color element so as to be suitable for a kind of the wireless terminal

among the elements of the moving picture, a font transformer, which is for transforming

a font element to shape information by dividing the font element so as to be suitable for

a kind of the wireless terminal, when the font information among the elements of the

moving picture does not correspond to the kind of the wireless terminal, an image

transformer, which is for transforming an image element to pixel information so as to be

suitable for a kind of the wireless terminal among the elements of the moving picture,

and a sound transformer, which is for transforming a sound element so as to be suitable

for a kind of the wireless terminal among the elements of the moving picture.

The moving picture controller may comprise a parsing processor for analyzing

sentences of the moving picture so as to display the moving picture having done the on¬

line transformation, and a rendering processor for visualizing the moving picture so as

to be recognized by a user.

Brief Description of the Drawings

FIG. 1 is a schematic illustration of a general network for using the Internet of

the prior art-

FIG. 2 is a schematic illustration of a prior mobile Internet service system using wireless network.

FIG. 3 is a schematic diagram of a wireless service system of moving picture of

prior art.

FIG. 4 illustrates a Definition tag of the Macromedia Flash.

FIG. 5A and FIG. 5B illustrate a process of transforming curve in a moving

picture to straight-lines in a method and a system for processing moving picture data

based upon vector graphic in accordance with preferred embodiment of the present

invention.

FIG. 6A and FIG. 6B are schematic diagrams for describing a method of

transforming mouse events to button events of a wireless terminal in a method and

system for processing moving picture data based upon vector graphic in accordance

with prefened embodiment of the present invention.

FIG. 7 illustrates control tags of the Macromedia Flash.

FIG. 8 is a flow chart for describing an off-line transformation process of

transforming data of the Flash moving picture to wireless data suitable for a wireless

terminal in a method for processing moving picture data based upon vector graphic in

accordance with preferred embodiment of the present invention.

FIG. 9 is a flow chart for describing an on-line transformation process of

transforming wireless data so as to be suitable for each kind of wireless terminals in a

method for processing moving picture data based upon vector graphic in accordance with preferred embodiment of the present invention.

FIG. 10 illustrates a schematic diagram of a system of processing moving

picture data based upon vector graphic in accordance with one preferred embodiment of

the present invention.

FIG. 11 is a flow chart for describing a process of treating the Macromedia

Flash moving picture in the web server in a method for processing moving picture data

invention.

FIG. 12 is a flow chart for describing a process of treating the Macromedia

Flash moving picture in a WAP gateway in a method for processing moving picture data

invention-

FIG. 13 is a flow chart for describing a process of treating the Macromedia

Flash moving picture in a user's wireless terminal in a method for processing moving

picture based upon vector graphic in accordance with preferred embodiment of the

present invention-

Best Modes for carrying out the Invention

Hereinafter, preferred embodiments of the present invention will be described in

more detail with reference to the accompanying drawings. The present invention transforms and deletes some elements unsuitable for

wireless Internet environment by selecting from a moving picture based upon vector

graphic. It transforms curve data that needs a large amount of calculation, to straight-

line data. It also transforms mouse events accomplished on the wire Internet to keypad

events on wireless terminals. Thus, it can effectively transmit the moving picture in

wireless environment. Hereinafter, the above transformation will be called an off-line

transformation.

Also, the present invention can provide effective wireless service to many users

by on-line transformation that transforms the Macromedia Flash moving picture suitable

for wireless environment to a specific data format in accordance with kinds of wireless

terminals.

Moving picture data can be generally divided to bitmap image, which includes

all information of image pixels consisting of each frame, and vector graphic image,

which includes specific information for drawing the images consisting of each frame.

All the image data, for example performed by digital camera or scanner are

composed of pixels. The pixels have location information such as a distance from x-

axis and y-axis, existence of pixels or colors. The image using a small grid of regular

tetragon called a pixel for expressing is said to be a bitmap image or raster graphic.

The grid is composed of regular lines arranged wide and long. It is also used to

ascertain relative location of the image or to indicate coordinates on a screen. On the other hand, programs, for example Macromedia Flash or Adobe

Illustrator for drawing an image on a computer generate vector graphics. The vector

graphic is an image performed by segments and curves that are identified as objects, so-

called vector and made from mathematical computation. As it were, it describes the

image not by pixels but by connection between one location and another location using

a straight-line or a curve. Thus, the vector graphic image may be an image having

mathematical computing information used for connecting segments of between one

location and another location (start point and end point). Therefore, not being real

subject like pixels, it must be changed to selective regions and then it must be

transformed to a bitmap image by filling the selective regions or boundaries of them

with some colors.

Although there are various applications based upon the vector graphic, it will be

described with reference to the Macromedia Flash in below.

A SWF file constituting the Macromedia Flash for a moving picture can widely

be divided to a header and tags. The header may have a file header for the SWF file

and a record header for specified data blocks. The tags as data blocks in the SWF file

have a tag type and a length. Besides, the SWF file may include a Character,

Character ID, Object, Depth number, Dictionary and Display list. The Character is a

conceptual Object defined by tags and tag data. The Object is an instance of a

Character unit to be realized in the Display list. Each Character has a Character ID that consists of a 16-bit number for classifying the Characters defined in the SWF file.

Also, it may have Depth numbers composed of a 16-bits integer number for describing

the stacking order of elements on the Display list. The Dictionary indicates definitions

or cunent lists of all the characters that appear in the Flash moving picture in the SWF

file. The Display list indicates a list of the Object that exists at specific location of the

screen within some times.

The header may include a Version field indicating a transformation, a Size field

indicating a size of the file and a Protection field related to contents copyrights of the

Macromedia Flash moving picture. Especially, the Version field comprises a

combination of NONE, OFF CNVT and ON CNVT for indicating transformations of

the header-

A method and system for processing moving picture based upon vector graphic

of the present invention use the Version field of the header in order to indicate whether

the Macromedia Flash moving picture is transformed for a wireless data transmission.

When the moving picture is transformed, the size of the moving picture is so changed

that the data of the Size field will be altered-

Tags of the Flash moving picture are divided into a Definition tag and a Control

tag. The Definition tag manages a dictionary of resource like shapes, text, bitmaps and

buttons that may be used at specific location of the animation. The Control tag

manipulates the Display list, a start operation and a stop operation. FIG. 4 illustrates a Definition tag of the Macromedia Flash.

Referring to FIG. 4, the Definition tag may include large number of tags, as it

were DefineShape, DefineShape2, DefineShape3, DefineMoφhShape, DefineBits,

DefineBitsJPEG2, DefineBitsJPEG3, DefineBitsLossless, DefineBitsLossless2,

JPEGTables, DefineButton, DefineButton2, DefineButtonCxform, DefineButtonSound,

DefineFont, DefineFont2, DefineFontlnfo, DefineText, DefineText2, DefineSound,

SoundStreamBlock, SoundStreamHead, SoundStreamHead2 and DefϊneSprite tags.

The DefineShape, DefineShape2, DefineShape3 and DefineMoφhShape tags

indicate shapes in the Flash moving picture. The DefineBits, DefineBits JPEG2,

DefineJPEG3, DefineBitsLossless, DefineBitsLossless2 and JPEGTables tags indicate

bitmap images. Also, the DefineButton, DefineButton2, DefineButtonCxform and

DefineButtonSound tags are button tags for indicating motions and operations of a

mouse- The DefineFont, DefineFont2, DefineFontlnfo, DefineText and DefineText2

tags indicate information of the text and font in the Macromedia Flash moving picture.

The DefineSound, SoundStreamBlock, SoundStreamHead and SoundStreamHead2 tags

indicate sounds of the Macromedia Flash moving picture. The DefineSprite tag

indicates other SWF moving pictures within the SWF moving picture.

It is need to delete or transform the shape tags, bitmap tags, font tags and sound

tags within the Definition tags for effective transmission of wireless data. The bitmap tags, e.g., DefineBits, DefineBitsJPEG2, DefineBitsJPEG3,

DefineBitsLossless and DefineBitsLossless2, the font tags, e.g., DefineFont,

DefineFont2 and DefineFontlnfo, and sound tags, e.g., DefineSound,

SoundStreamBlock, SoundStreamHead and SoundStreamHead2 will be altered to a

specific format compatible for kinds of the wireless terminals. By transformation of

the above tags, the size of transmitted wireless data can be reduced.

As it were, since the Macromedia Flash moving picture is used as a vector

graphic, the bitmap tags are transformed in accordance with a number of colors supplied

from the wireless terminal. Also, the font tags and sound tags are transformed in

accordance with the font and sound of the wireless terminal.

Also, tags used for defining background music can be deleted because current

wireless terminals do not supply an operation of sound mixing.

On the other hand, the shape tags composed of the DefineShape, DefineShape2,

DefineShape3 and DefineMoφhShape include data describing the shapes of characters

in the Macromedia Flash moving picture. Also, the vector graphic like the

Macromedia Flash moving picture describes the shape of curves in second-order Bezier

curve- The Bezier curve is described by vertexes (control points) of polygon, which

define curves. Also the Blending function for determining shapes of the curves is

described by the Bernstein polynomial.

A method and system for processing moving picture data of the present invention can reduce data size of the Macromedia Flash moving picture by transforming

data of the Bezier curve in the shape tags to a plurality of data of sequential straight-line

and by combining the data of the straight-lines.

FIG. 5A and FIG. 5B illustrate a process of transforming curve in moving

picture to straight-lines in a method and system for processing moving picture data

invention.

First referring FIG. 5A, a second-order Bezier curve Cl can be described with

two segments P1P2 and P2P3 that connect between an outer point P2, and two end

points Pl and P3 of the curve. As it were, one Bezier curve can be defined as three

points Pl, P2 and P3. A line interconnecting a midpoint P12 of the segment P1P2 to a

midpoint P23 of the segment P2P3 is always tangent to the Bezier curve Cl. If the

tangent point is called M, the initial Bezier curve Cl is divided into a curve between a

point Pl and a point M, and a curve between a point M and a point P3. Therefore, the

curve Cl can be described with three segments P1P12, P12P23 and P23P3. As it were,

the data of one curve can be transformed to data of three straight-lines- Then, it

measures the distance D between outer point P2 of the curve Cl and the midpoint M

when a curve can be described as three straight-lines. Recursively repeating the

processes of transforming the curve, the distance D between outer point of the curve and tangent point becomes shorter and shorter. The unit of the distance D is a pixel or a

mathematical length because it can be varied from objects used for constructing a screen.

A number of divisions for the curve Cl can be altered by assigning the distance

D to specific value. As it were, enlarging the reference value of the distance D, the

number of divisions for the curve Cl becomes reduced. Thus, the size of straight-lines

for describing the curves can be reduced, but the accuracy of the curves becomes lower.

On the other hand, reducing the reference value of the distance D, the accuracy of the

curves becomes higher owing to describe the curve Cl with larger number of straight-

lines. For example, when the distance D is within unit length 1, the lower distance is,

the higher accuracy of the Macromedia Flash moving picture is. The higher distance is,

the lower data are transmitted to the wireless terminals. However, the size of

transmitted curve data can be reduced and the wireless data can be effectively

transmitted by transforming the Bezier curve to the straight-lines, regardless of the

magnitude of reference value of the distance D.

After transforming the curve in the moving picture to straight-lines by above

method, the straight-lines are described as illustrated in FIG. 5b by connecting the two

straight-lines adjacent to the curve.

As it were, a triangle P6P7P8 with a crossing point P7 as a vertex can be drawn

by intersecting the adjacent straight-lines P6P7 and P7P8. If the two angles Al and

A2, which obtained by measuring <P7P6P8 (Al) and <P7P8P6 (A2) constituting base line of triangle P6P7P8, are less than a pre-determined reference angle, it can be

considered that the straight-line P6P7 is parallel with the straight-line P7P8. The

reference angle can be placed with random value between 0 and π radian. However,

preferably it is not exceeding a value of 0.2 radian.

Therefore, the two adjacent straight-lines (straight-lines P6P7 and P7P8) can be

described as one straight-line P6P8 by considering that the two straight-lines are parallel,

when their intersecting angle is less than the reference angle. The reference angle can

be controlled by pre-specified size or user's selection in a process of transforming data

with format suitable for each wireless terminal. Thus, the data size of the curve can be

much reduced by describing the curve to several straight-lines within specific range, and

by combining two adjacent straight-lines with one straight-line-

The processes of describing a curve to straight-lines and combining straight-

lines are continued until simplification does not proceed any more- In a process of

describing the boundaries of the Macromedia Flash moving picture, the straight-lines

that obtained from the curve by the transformation and the combination are described on

a screen, and then the original moving picture can be reformed by restricting the

coloring operation for the inner of the curve within the inner of the straight-lines. If

the distance D between a outer point and a tangent point of the curve, and a reference

value of base angles for the two adjacent straight-lines have low values, more precise

image can be described with a low size of the curve data. Like above, the data size of the Macromedia Flash moving picture can be much

reduced by transforming the curve with shape tags to straight-lines and combining the

plurality of straight-lines.

Moreover, button tags composed of DefineButton, DefineButton2,

DefineButtonCxform and DefineButtonSound describe motions and operations of a

mouse. Thus, they can transform wireless data to a specific form suitable for the

wireless terminal without a mouse.

Operations of a mouse connected to user's computer system on a wire network

can be described by pointing information of up, down, left and right directions in

combination with press information of mouse buttons.

Buttons in the Macromedia Flash moving picture are made to act in accordance

with mouse events, for information of mouse location and input of the mouse button.

These Macromedia Flash events are processed by tags that define buttons. The four

states of the Macromedia Flash buttons are composed of an UP, DOWN, OVER and

HIT AREA. The UP defines an operation of the Macromedia Flash button when a

pressed left button of a mouse is relaxed- The DOWN defines an operation of the

Macromedia Flash button when a left button of a mouse is just pressed. The OVER

defines an operation of the Macromedia Flash button when a mouse pointer is on the

Macromedia Flash button. The HIT AREA defines a region of action of the

Macromedia Flash button in which operations of the UP/DOWN/OVER are accomplished by motions of the mouse.

For example, when a mouse pointer is moved over the Macromedia Flash

button, it is decided whether the location of the mouse pointer is in a region of the HIT

AREA by x and y-coordinates of the mouse pointer. If the x and y-coordinates of the

mouse pointer are within the region of the HIT AREA, current state of corresponding

Macromedia Flash button is changed to the OVER. Moreover, when a left button of a

mouse is pressed with pointer laid on a Macromedia Flash button, current state of the

Macromedia Flash button is changed from the OVER to the DOWN. In the same way,

when a pressed left button of a mouse is relaxed, the state of the Macromedia Flash

button is changed to the UP.

Therefore, the method of transformation from mouse events to keypad events

suitable for the wireless terminals is changing states of the Flash buttons for recognizing

motions of the mouse pointer and states of the mouse in the wireless terminal without a

mouse.

FIG- 6A and FIG- 6B are schematic diagrams for describing a method of

transforming mouse events to button events of a wireless terminal in a method and a

system for processing a moving picture based upon vector graphic in accordance with

prefened embodiment of the present invention.

The method of transforming mouse events to button events of a wireless terminal is described in the below referring to FIG. 6A and FIG. 6B.

Each time a mouse pointer moves, sequential values of x and y-coordinates are

altered. However, a wireless terminal does not have a mouse. Thus, five buttons

among a plurality of buttons of the wireless terminal are voluntarily selected for

indicating movements to up, down, left and right, and a command. Four directional

buttons and center button will generally be used. When the five buttons in a wireless

terminal are selected, the names of the left, right, up, down and enter may be assigned to

each button. In a wire computer system, coordinate value (x, y) of a current location is

changed to (x, y+1), (x, y-1), (x-1, y) and (x+1, y) respectively. However, the

coordinate value (x, y) in a wireless terminal is changed to (xl, yl), (x2, y2), (x3, y3)

and (x4, y4) respectively. The xl, x2, x3 and x4 are 0 or positive integers not

exceeding the maximum of left and right of a screen. Also, the yl, y2, y3 and y4 are 0

or positive integers not exceeding the maximum of up and down of the screen. The

coordinate values are related to x-directional or y-directional distance between a

Macromedia Flash button with an OVER state and an adjacent button located up, down,

left and right.

Assume nine Macromedia Flash buttons with shapes of square and a center

Flash button with a current OVER state as described in FIG. 6A.

When a central point of a Flash button with an OVER state has a coordinate

value (x, y), a nearest Flash button located at left direction (-x direction) of the current Flash button is selected according to press of left button of the wireless terminal. If

any Macromedia Flash button does not exist in the left direction, no action is generated.

However, a Macromedia Flash button being found in the left direction as described in

FIG. 6A, the central point (xl, yl) of the newfound Macromedia Hash button is

calculated.

The OVER state of the current Hash button is changed to the UP state and the

state of the newfound Macromedia Hash button becomes an OVER state. And then,

cunent location is altered to the new calculated location (xl, yl) as described in FIG.

6B. A difference (xl-x, yl-y) between coordinate values (x, y) and (xl, yl) of

adjacent two Macromedia Hash buttons is made link to each Macromedia Hash button.

With above method, constructing network for up, down, left and right among adjacent

Macromedia Hash buttons, it is possible to transform an event, which links from one

button to another buttons in accordance with sequential motions of the mouse, to

keypad events. Also, a state that the left button of the mouse is pressed can be

substituted for a state that the enter button is pressed. Therefore, mouse events for the

Macromedia Hash moving picture can be accomplished just by states of the DOWN and

OVER of a wireless terminal. Thus, other events, states of the UP and HIT AREA can

be deleted- After all, among the mouse events of the Macromedia Hash moving

picture realized in a computer system, states of the DOWN and OVER are transformed

for using in a wireless terminal, and rest states of the UP and HIT AREA are deleted. Thus, data size to be processed and controlled in the wireless terminals can be reduced.

HG. 7 illustrates control tags of the Macromedia Hash moving picture.

Refening to HG. 7, control tags of the Macromedia Hash include End,

FramdLabel, PlaceObject, PlaceObject2, Protect, RemoveObject, RemoveObject2,

SetBackgroundColor, ShowFrame, StartSound and DoAction tags. The ShowFrame

tag of the control tags displays all Characters within the Display list on a screen.

Finished the operation for displaying frames, the End tag stops a displaying operation of

the Hash moving picture. The ShowFrame tag is generally composed of the

PlaceObject tags. The PlaceObject tag places the Characters due to the Definition tag

on a space. When any other tag exists in the ShowFrame tag except the PlaceObject

tag, the other tags must not be deleted because they define others. However, if the

PlaceObject tags exist only in the ShowFrame tag, the ShowFrame tag can be deleted

since the aesthetic identity of the Macromedia Hash moving picture is maintained even

if the ShowFrame tag is deleted.

On the other hand, each frame can be compared with adjacent frame in the

Macromedia Hash moving picture. For example, data in the ShowFrame tag include

information of rotation, scale or translation of the moving picture. The information of

each frame can be constructed to a matrix. Then, determinant of the matrix for

indicating motion characters of each frame can be obtained. Calculating the variation of the determinants between adjacent frames, the adjacent frames are considered as

continuous frames that have little change between the adjacent frames when the

variation is not more than a pre-determined reference variation. For the continuous

frames with little change, one frame of the continuous two frames can be deleted.

HG. 8 is a flow chart for describing an off-line transformation process of

transforming data of the Macromedia Flash moving picture to wireless data suitable for

a wireless terminal in a method for processing a moving picture based upon vector

graphic in accordance with preferred embodiment of the present invention.

The off-line transformation process is described in the below referring to HG. 8.

The off-line transformation process may be accomplished in a WAP server or a WAP

gateway.

A transformation of the moving picture, which is produced by an application

based upon vector graphic like the Macromedia Hash, is accomplished according to its

tag, or data within the tag. For the process, the WAP server or WAP gateway first

receives tags existing in the Macromedia Hash moving picture (slO). It examines

whether the input tag is a tagEnd indicating end of the tags (sl2). When a tagEnd is

found, it registers the information, which indicates a size, event transformation and

shape optimization of the moving picture with a low size by the off-line transformation,

in a header. And then, the off-line transformation ends after the version information of the header is modified to OFF_CNVT and then registered (sl4). The version

information is a field located in the header of the Macromedia Flash moving picture and

indicates whether the off-line transformation is accomplished.

When a tagEnd is not found, it examines whether the input tags include a

ShowFrame tag to be used for transforming wire data to wireless data (sl6). When a

ShowFrame tag is found, it examines whether it is composed of only PlaceObject tags

(s20). When the ShowFrame tag is composed of only PlaceObject tags, it registers the

ShowFrame tag in the between frame list since it can be deleted in a rendering process

for visualizing the Macromedia Hash moving picture on a screen of the wireless

terminal (s22)- The between frame list indicates frames that have a probability to be

deleted among a plurality of frames constituting the Macromedia Hash moving picture

through a process of transforming the frames to the wireless data- Therefore, all or

some selected from the frames registered in the between frame list can be deleted before

those frames are transformed to the wireless data. Otherwise, though all the frames are

registered in the between frame list, those frames can be used for processing wireless

data without deleting-

Each frame may include other tags except the PlaceObject tag. Other tags

except the PlaceObject tag define objects that displayed on a screen of a wireless

terminal or are used in a rendering process for visualizing such as a tag for deleting

objects on a screen. Thus, the tags are considered what must not be deleted. When a frame is considered as what must not be deleted, the WAP server or the WAP gateway

applies a deletion rule to the frames by computing a variation of motion characters

between continuous frames (s36). Due to the deletion rale, when a variation for the

motion characters between the continuous two frames, e.g., front frame and rear frame,

is not exceeding a pre-determined reference variation, the front frame or rear frame is

deleted by considering that little variation exists between the two frames (s38).

Motion characters of each frame can be obtained by constracting the

information of rotation, scale or transition of the moving picture as a matrix, and then

by computing determinants of each matrix. Thus, calculating an absolute value for

difference of the determinants of the continuous two frames, and then the absolute value

compares with the reference variation- The reference variation can be selected

between 0 and 1. The larger the reference variation is, the data of the Macromedia

Hash moving picture is reduced by the fact the larger the number of frames to be

deleted. Otherwise, as the reference variation is nearer to 0, the number of frames to

be deleted becomes reduced.

On the other hand, as a result of comparing variation of the motion characters

between the continuous frames with the reference variation, non-deleted frames are

registered and then can be deleted selectively at regular intervals (s40). At the

beginning, it is preferred not to delete the between frames in a process of transforming

the Macromedia Hash moving picture to the wireless data. However, a size of the Macromedia Hash moving picture can be reduced by deleting at regular intervals, for

example every n-th frames within the between frame list. The intervals can be

controlled by a user's selection.

Remain tags and data not being deleted within the between frame list will be

stored, and then be used as wireless data (s42). Otherwise, when an input tag is not a

ShowFrame tag, it examines whether the input tag is a Definition tag that defines shape,

bitmap, sprite, sound, button and font (sl8). When an input tag is not a Definition tag,

the WAP server or WAP gateway stores the input tag considering that not to be

transformed or deleted any more (s42). When an input tag is a Definition tag, it

examines whether the input tag is a useless tag like a background tag in a process of

transmitting wireless data. If so, it deletes the input tag (s26). If the input tag is not

able to be deleted, it examines whether the input tag is a shape tag (s28). When an

input tag is a shape tag, the WAP server or WAP gateway transforms the curve data to

the straight-line data, combines the plurality of straight-line data, optimizes the shape

data (s32), and then stores the tag and tag data (s42).

When an input tag is not a shape tag but a button tag, the WAP server or WAP

gateway changes mouse events to wireless events that can be accomplished by input

buttons of the wireless terminal (s34). The process of changing events for the wireless

terminal is described above. On the other hand, after reducing data size of the moving picture based upon

vector graphic and transforming the data to wireless data suitable for the wireless

terminals, the WAP server or WAP gateway may transform the wireless data so as to be

suitable for each kind of wireless terminals by an on-line transformation.

FIG. 9 is a flow chart for describing an on-line transformation process of

transforming wireless data so as to be suitable for each kind of the wireless terminals in

a method for processing moving picture data based upon vector graphic in accordance

with preferred embodiment of the present invention.

Referring to HG. 9, a WAP gateway collects kind information of wireless

terminals playing the Macromedia Hash moving picture (s60). Kinds of wireless

terminals can be generally classified by a screen size, pixel information displayed in the

screen and sound information. It takes examples, Nokia, Motorola, SK telecom,

Samsung, LG, Hyundai, NTT Docomo and so forth, as representative manufacturing

companies of the wireless terminals playing the moving picture. There are diverse

kinds of the wireless terminals produced by the above manufacturing companies. The

wireless terminals also have diverse performances for processing data-

For example, one wireless terminal called 'iBook' made in the LG Electronics

has a screen with 128x128 pixels and it can display four colors (black, dark gray, bright

gray and white) in each pixel- Also, sound is output signal generated by a speaker that

use buzzes and a CODEC called QCELP. In above case, when bitmap information of trae color exists in the Macromedia

Hash moving picture, it must be changed to a bitmap composed of just 4 colors. Thus,

the bitmap information can be displayed in the wireless terminal. As it were, a number

of colors constituting a shape tag are reduced and transformed according to the number

of colors of the wireless terminal. Generally, 24 bit trae colors are transformed to 4

grays, 256 colors or 4,096 colors. Moreover, when an image size of the wireless data

transformed by the off-line transformation is larger than 128 x 128, the data may not be

displayed in a screen. Thus, the image size must be transformed so as to be suitable

for the screen size of the wireless terminal. Also, since a user cannot listen sound with

a wireless terminal when the sound in the Macromedia Hash moving picture is defined

as MP3, the MP3 sound data must be transformed by QCELP transcodec. The sound

information will be different in accordance with kinds of the hardwares of the wireless

terminals. Also, when the wireless terminal does not supply a font like Time new

Roman, the font information is decomposed and transformed to shape information, and

then the shape information is displayed in a screen.

If information of wireless terminals is collected for processing the Macromedia

Hash moving picture, the WAP gateway or wireless terminal receives a tag or inner data

of the tag within the wireless data that have been transformed by off-line transformation

(s62). It examines whether an input tag is a tagEnd (s64). When the input tag is a

tagEnd, header information is modified in accordance with the on-line transformation of the Macromedia Hash moving picture and a result of the on-line transformation

(ON_CNVT) is registered in a version field of the header information (s66). If it is not

a tagEnd, it examines whether the input tag is a Definition tag (s68). When the input

tag is not a Definition tag, the input tag may not need the on-line transformation. Thus,

a new input tag is provided (s62). When the input tag is a Definition tag, it examines

whether the input tag is a shape tag defining shapes (s70), a font tag defining fonts (s74),

a bitmap tag defining bitmaps (s78) or a sound tag defining sounds (s82). When the

Definition tag is not a shape tag, font tag, bitmap tag and sound tag, a new tag is

provided since the on-line transformation is not necessary.

When the input tag is a shape tag, the WAP gateway or wireless terminal

transforms the color information of the shape tag so as to be processed in the wireless

terminal (s72). When the input tag is a font tag, it determines whether the font tag

conesponds to a font of the wireless terminal. If the font of the font tag exists in the

wireless terminal, the WAP gateway or wireless terminal uses the font tag as it is. If

not, it discomposes the font information and then transforms the font information to

shape information (s76). When the input tag is a bitmap tag, the WAP gateway or

wireless terminal transforms all the pixel information of the bitmap tag so as to be

displayed in the wireless terminal (s80). When the input tag is a sound tag, it

transforms the sound tag so as to be utilized in the wireless terminal (s84). The above

transformations are performed recursively until the input tag is equivalent to the tagEnd. Although the Macromedia Hash as an application for processing moving

picture based upon vector graphic has been described as an example, it is apparent that

the above method of the present invention can be applied to all the applications

handling the moving pictures based upon vector graphic. For the moving pictures

based upon vector graphic using Bezier curves for image processing, the above method

of transforming the curve data to the straight-line data can be applied in the same way.

Moreover, a method of transforming the mouse events of the moving pictures to the

button events of the wireless terminals is applied to all the moving picture in the same

way. Moreover, wireless data can be effectively delivered by selecting and deleting

useless elements in the wireless data delivery or wireless terminals, and by transforming

selected elements so as to be suitable for wireless data delivery and wireless terminals.

In the method of transforming the Macromedia Hash moving picture, the off¬

line transformation in the wireless delivery of the Macromedia Hash moving picture is

accomplished in the web server or WAP gateway, and the on-line transformation

according to the kinds of the wireless terminals is accomplished in the WAP gateway or

wireless terminals-

HG. 10 illustrates a schematic diagram of a system of processing moving

the present invention. Refening to HG. 10, the system of processing the moving picture based upon

vector graphic of the present invention includes a web server 110 for generating and

processing the moving pictures based upon vector graphic like the Macromedia Flash

moving picture, a wireless terminal 130 for acting as a client and a WAP gateway 120

for transforming data between the web server 110 and wireless terminal 130. The web

server 110 may include an off-line transformer 114 for transforming the Macromedia

Hash moving picture based upon vector graphic so as to be suitable for wireless data

delivery. Also, the wireless terminal 130 may include an on-line transformer 134 for

transforming the wireless data, which are transformed so as to be suitable for wireless

data delivery by the off-line transformer 114 of the Macromedia Hash moving picture,

to specific elements according to the kinds of the wireless terminals 130. The WAP

gateway 120 may include an on/off-line transformer that performs on-line

transformation for transforming the Macromedia Hash moving pictures so as to be

suitable for the wireless data delivery and off-line transformation for transforming the

Macromedia Hash moving pictures having passed through the off-line transformation so

as to be suitable for the kinds of the wireless terminals 130.

The web server 110 stores the Macromedia Hash moving pictures made by

Macromedia Hash moving picture generator in the contents server 116. The off-line

transformer 114 transforms the Macromedia Hash moving picture stored in the contents

server so as to be suitable for a wireless data delivery through the off-line transformation. As it were, the web server 116 deletes tag data, which are not required

for a wireless data delivery, from the Macromedia Hash moving picture and transforms

the specific tag data so as to be suitable for the wireless data delivery through the

method as described in HG. 8. The Macromedia Hash moving picture transformed

through the off-line transformation will be stored in the contents server 116 with

registering in the header whether the transformation is accomplished. The web server

116 transmits the Macromedia Flash moving picture, which have been performed the

off-line transformation, to the WAP gateway 120 using a protocol device for a wire

communication 112 such as a HTTP communication device.

The WAP gateway 120 can ascertain whether the off-line transformation is

accomplished using version information in the header of the Macromedia Hash moving

picture transmitted from the web server 110. When the off-line transformation has not

been accomplished, the on/off-line transformer 124 of the Macromedia Hash moving

picture in the WAP gateway 120 may perform the off-line transformation so as to be

suitable for the wireless data delivery. When the off-line transformation has been

accomplished, the on/off-line transformer 124 may perform the on-line transformation

according to the kind of the wireless terminal. The off-line or on-line transformation

having been accomplished, the WAP gateway 120 transmits the Macromedia Hash

moving picture, that have been through the off-line or on-line transformation, to the

wireless terminal 130 through the protocol transformer for a wire/wireless communication 122.

The wireless terminal 130 receives the Macromedia Hash moving picture

transmitted from the WAP gateway 120 through the protocol device for a wireless

communication 132. Then, it selects the version information from the header of the

Macromedia Hash moving picture and confirms whether the off-line or on-line

transformation is accomplished- When the Macromedia Hash moving picture has

been just through the off-line transformation, the wireless terminal 130 performs the on¬

line transformation so as to be suitable for the kind of the wireless terminal 130 through

the on-line transformer 134 of the Macromedia Hash moving picture. When the

Macromedia Hash moving picture has been through the on-line transformation by the

on-line transformer 134 or has been transmitted with on-line transformed, the

Macromedia Hash moving picture will be displayed in the display 130 through the

WAP browser 136.

On the other hand, a user of the wireless terminal 130 can control the motion of

the Macromedia Hash moving picture with an input/output device (it is not described in

figures) attached to the wireless terminal 130. When a user inputs a command to the

wireless terminal 130, the command is transmitted to the WAP gateway 120 through the

protocol device for a wireless communication 132, and then transmitted to the web

server 110 through the protocol device for a wire/wireless communication 122 of the

WAP gateway 120. The web server 110 selects the Macromedia Hash moving picture from the contents server 116 according to a user's command. The selected

Macromedia Hash moving picture will pass through processes of the off-line and on¬

line transformations sequentially through the web server 110, WAP gateway 120 and

wireless terminal 130. Therefore, the user of the wireless terminal 130 can receive

desired Macromedia Hash moving picture using the wireless terminal 130 by requesting

to the web server 110.

HG. 11 is a flow chart for describing a process of treating the Macromedia

Hash moving picture in the web server in a method for processing moving picture based

upon vector graphic in accordance with preferred embodiment of the present invention.

Referring to FIG. 11, the web server selects a Macromedia Hash moving

picture to be transmitted to a wireless terminal from a contents server (slOO). Then,

the web server determines whether it transforms the Macromedia Hash moving picture

so as to be suitable for the wireless terminal or not (sl02). If the off-line

transformation has been completed, the off-line transformation is needless to be

performed. When the off-line transformation is not completed, the web server detects

header information of the Macromedia Hash moving picture (sl04), and then

transforms the Macromedia Hash moving picture to wireless data through the off-line

transformation as described in HG. 8 (sl06). For the Macromedia Hash moving

picture having completed the off-line transformation, the version information indicating the completion of the off-line transformation is registered in the header information

(sl08). The web server modifies the size or frame number of the Macromedia Flash

moving picture having been transformed together with the version information and

stores the Macromedia Hash moving picture in the contents server (si 10). If there is

an additional Macromedia Hash moving picture to be transformed, the process as

described in HG. 11 is performed for the Macromedia Hash moving picture repeatedly.

If not, all the processes are terminated- When a user requests specific Macromedia

Hash moving picture, the web server detects the Macromedia Hash moving picture

having done the off-line transformation from the contents server and then transmits the

Macromedia Hash moving picture to the WAP gateway. If the Macromedia Flash

moving picture has not gone through the off-line transformation in the web server, the

off-line transformation of the Macromedia Hash moving picture can be accomplished in

the WAP gateway-

HG. 12 is a flow chart for describing a process of treating the Macromedia

Hash moving picture in the WAP gateway in a method for processing moving picture

invention.

Referring to HG. 12, the WAP gateway receives the Macromedia Hash moving

picture using a wire protocol such as a HTTP (sl30). Then, the WAP gateway selects header information of the Macromedia Flash moving picture (sl32) and determines

whether it has done the off-line transformation using version information (sl34).

When the off-line transformation has not been done in the web server, the off-line

transformation as described in HG. 8 is accomplished (sl36). Otherwise, when the

off-line transformation has been done in the web server, the WAP gateway selects a kind

of the wireless terminal for on-line transformation suitable for the wireless terminal

(sl38). The kind of the wireless terminal may be decided by hardware restrictions

such as a size of output screen, color limitation of output device, supply device of sound,

etc. Based upon the hardware restrictions, it determines whether the kind of the

wireless terminal can supply the Macromedia Hash moving picture having done the off¬

line transformation (sl40). When the kind of the wireless terminal fully supplies the

Macromedia Hash moving picture having done the off-line transformation, the WAP

gateway modifies the version information within the header of the Macromedia Hash

moving picture to a completion state of the on-line transformation (ON_CNVT) (sl44).

Then, it transmits the Macromedia Hash moving picture to the wireless terminal (sl36).

On the other hand, when the kind of the wireless terminal does not supply the

Macromedia Hash moving picture having done the off-line transformation, the WAP

gateway performs the on-line transformation as described in HG. 9 (sl42) and then

modifies the header information according to the size of the Macromedia Hash moving

picture having done the on-line transformation (sl44). The version information that indicates the result of the on-line transformation will be modified together. The WAP

gateway transmits the Macromedia Flash moving picture having done the on-line

transformation to the user's wireless terminal (sl46). The cost of delivering the

Macromedia Hash moving picture may be demanded to the user.

HG- 13 is a flow chart for describing a process of treating the Macromedia

Hash moving picture in a user's wireless terminal in a method for processing moving

present invention.

Referring to HG. 13, the user's wireless terminal receives the Macromedia

Hash moving picture transmitted from the WAP gateway (sl60)- The wireless

terminal detects the header information of the Macromedia Hash moving picture for

ascertaining whether the received Macromedia Hash moving picture has done the on¬

line transformation in the WAP gateway (sl62). When the version information is not

ON CNVT, the wireless terminal performs the on-line transformation for the

Macromedia Hash moving picture as described in HG- 9 by considering that the

Macromedia Hash moving picture is not to be supplied from the wireless terminal

(sl66). Otherwise, when the version information describes on-line transformation, the

wireless terminal performs a parsing operation that inteφrets sentences of the

Macromedia Hash moving picture since the wireless terminal supplies the Macromedia Hash moving picture (sl68). Completing the parsing operation of the Macromedia

Hash moving picture, the wireless terminal performs a rendering operation so as to be

suitable for a display of the wireless terminal (sl70). Then, the wireless terminal

examines whether the Macromedia Flash moving picture waits for the user's input

(sl72) and progresses a step of input processing (sl74). Mouse and keyboard inputs of

the Macromedia Hash moving picture, which has not done the off-line transformation in

the input process, are transformed to inputs based upon buttons of the wireless terminal.

When the input is terminated or it is not a waiting state, the wireless terminal completes

the rendering process for the current frame of the Macromedia Hash moving picture

(sl76). When the user inputs a stop button, the wireless terminal terminates the output

process of the Macromedia Hash moving picture- Otherwise, as long as the user does

not input the stop button, the rendering process will be repeated for successive frames of

the Macromedia Hash moving picture.

Industrial Applicability

As described above, depending on a method for processing moving picture

based upon vector graphic of the present invention, the moving picture data for wireless

communication can be reduced by deleting useless elements and by transforming each

element so as to be suitable for wireless data processing.

Moreover, the method for processing moving picture based upon vector graphic of the present invention can reduce data size of the moving picture to be transmitted in a

wireless communication by transforming curve data constituting the moving picture

based upon vector graphic to straight-line data and then by combining them.

Moreover, the method for processing the moving picture based upon vector

graphic of the present invention can easily display the moving picture in a wireless

terminal by transforming the moving picture based upon vector graphic according to the

kind of the hardware of the wireless terminal.

Moreover, the method for processing moving picture based upon vector graphic

of the present invention can efficiently treat the moving picture in the wireless terminal

by transforming mouse and keyboard events of the moving picture to button events of

the wireless terminal.

Although the method and system for processing moving picture based upon

vector graphic of the present invention has been described in detail in terms of various

embodiments, it is not intended that the present invention be limited to these

embodiments- Various modification and change within the spirit of the invention will

be apparent to those skilled in the art-

Claims

1. A method for processing moving picture based upon vector graphic so

as to be used in a wireless terminal comprising the steps of:

detecting a Bezier curve from the moving picture based upon vector graphic;

generating a first straight-line and a second straight-line tangent to the Bezier

curve by connecting at least three control points that define the Bezier curve;

generating a third straight-line tangent to the Bezier curve by interconnecting

midpoints of the first straight-line and the second straight-line;

dividing the Bezier curve into two sub Bezier curves on the basis of the contact

point between the Bezier curve and the third straight-line;

repeating said step of dividing recursively for the sub Bezier curves, when an

approximate distance is not less than a pre-determined reference value, said

approximate distance being a distance between a crossing point of the first straight-line

and the second straight-line and the contact point on the Bezier curve by the third

straight-line; and

substituting the first and second straight-lines that interconnect at least three

control points of the sub Bezier curve, which is divided by said step of dividing, for

conesponding sub Bezier curve, when each approximate distance for each sub Bezier

curve is not exceeding a reference value.

2. The method in claim 1, wherein the moving picture based upon vector

graphic is made by the Macromedia Hash.

3. The method in claim 1 further comprising the steps of:

forming a triangle with the first and second straight-lines substituting the divided

sub Bezier curve and a base line that is a segment interconnecting tangent points, in

which the first and second straight-lines are tangent to the sub Bezier curve; and

substituting a line involving the base line for the first and second straight-lines,

when two intersecting angles related to the base line are not exceeding a pre-determined

reference angle.

4. The method in claim 1, wherein the reference angle has a value

between 0 and π radian.

5. A method for processing events based upon vector graphic so as to be

used in a wireless terminal comprising the steps of:

detecting location information of a mouse and input information of mouse

buttons within a moving picture based upon vector graphic;

detecting a plurality of state information of control buttons of the moving picture

that control the moving picture displayed in a screen in accordance with a location of the mouse and inputs of the mouse buttons;

deleting some state information that does not conespond to a pre-determined

directional button and input button selected for controlling the moving picture in the

wireless terminal among the plurality of state information of the control buttons of the

moving picture;

recognizing locations of the control buttons of the moving picture displayed in

the screen of the wireless terminal and then constructing a button network that

interconnects the control buttons of the moving picture;

receiving at least one button motion among the directional buttons and the input

buttons of the wireless terminal; and

performing a function of the control button of the moving picture with a specific

location on the button network, in accordance with a motion of at least one button

among the directional buttons and input buttons of the wireless terminal-

6- The method in claim 5, wherein the state that does not conespond to a

directional button and input button In the wireless terminal is UP or HIT AREA, among

UP which defines an operation of the Macromedia Hash button when a pressed left

button of the mouse is relaxed, DOWN which defines an operation of the Macromedia

Hash button when a left button of the mouse is just pressed, OVER which defines an

operation of the Macromedia Hash button when the mouse pointer is on the Hash button, and HIT AREA which defines a region of action of the Macromedia Flash

button.

7. A method for processing frame data based upon vector graphic so as to

be used in a wireless terminal comprising the steps of:

detecting a plurality of frame information composed of a moving picture;

computing characteristic values of a motion for each frame;

computing sequentially variations of a characteristic value of the motion for

continuous two frames; and

deleting one frame of the two frame, when the variation of the characteristic

value of motion is not exceeding a pre-determined reference variation.

8- The method in claim 7, wherein said step of computing characteristic

values of motion for each frame comprises the steps of:

constructing a matrix using screen information for each frame as elements; and

computing a determinant of the matrix-

9. The method in claim 8, wherein the screen information for each frame

comprises at least one selected from a group consisting of rotation information, scale

information and transition information.

10. A method for processing moving picture based upon vector graphic so

as to be used in a wireless terminal comprising the steps of:

detecting elements that constitute the moving picture;

detecting frame display elements, which are used for displaying characters on a

screen, among the elements;

detecting detailed elements in the frame display elements; and

deleting the frame display element, when the detailed elements of the frame

display element are just composed of space arrangement elements for ananging the

characters in the space.

11. The method in claim 10 further comprising the step of deleting

background music element for defining the background music among elements

constituting the moving picture.

12. The method in claim 10 further comprising the step of transforming

curve data, which constitute a moving picture, to straight-line data.

13. The method in claim 12, wherein said step of transforming curve data

to straight-line data comprises the steps of: detecting a Bezier curve from the moving picture based upon vector graphic;

curve by connecting at least three control points that define the Bezier curve;

generating a third straight-line tangent to the Bezier curve by interconnecting

midpoints of the first straight-line and the second straight-line;

point between the Bezier curve and the third straight-line;

repeating recursively said step of dividing for the sub Bezier curves, when an

line and the second straight-line and the contact point on the Bezier curve by the third

straight-line, is not less than a pre-determined reference value; and

curve is not exceeding reference value-

14. The method in claim 10 further comprising the step of transforming

mouse events constituting the moving picture to button events of the wireless terminal.

15. The method in claim 14, wherein said step of transforming mouse events constituting a moving picture to button events of the wireless terminal comprises

the steps of:

detecting location information of a mouse and input information of mouse

buttons within the moving picture based upon vector graphic;

that control the moving picture displayed in a screen in accordance with a location of

the mouse and inputs of the mouse buttons;

deleting some state information that does not conespond to a pre-determined

moving picture;

recognizing locations of the control buttons of the moving picture displayed in

the screen of the wireless terminal and then constructing a button network that

interconnects the control buttons of the moving picture;

buttons of the wireless terminal; and

among the directional buttons and input buttons of the wireless terminal-

16. The method in claim 10 further comprising the step of deleting one

frame of continuous similar frames among a plurality of frames constituting the moving

picture.

17. The method in claim 16, wherein said step of deleting one frame of

continuous similar frames among a plurality of frame constituting the moving picture

comprises the steps of:

detecting a plurality of frame information constituting a moving picture;

computing characteristic values of a motion for each frame;

computing sequentially variations of a characteristic value of the motion for

continuous two frames; and

deleting one frame of the two frame, when the variation of the characteristic

value of motion is not exceeding a pre-determined reference variation.

18. The method in at least one of claims 10, 11 and 16, wherein said step of

deleting elements or frames comprises the steps of:

registering elements or frames to be deleted in a deletion list; and

deleting selected elements or frames at regular interval among those of

registered in the deletion list.

19. The method in claim 10 further comprising the step of recording the

result of transforming the moving picture in a header of the moving picture.

20. A method for processing a Macromedia Hash moving picture so as to

be used in a wireless terminal comprising the steps of

detecting tag information of the Macromedia Hash moving picture;

deleting a ShowFrame tag within the Hash moving picture when only

PlaceObject tags exist in the ShowFrame tag;

transforming curve data in a shape tag within the Macromedia Hash moving

picture to straight-line data; and

transforming a mouse event within the Macromedia Hash moving picture to a

button event of the wireless terminal.

21- The method in claim 20, wherein the shape tags comprise at least one

selected from a group consisting of a DefineShape tag, a DefineShape2 tag, a

DefineShape3 tag and a DefineMoφhShape tag-

22- The method in claim 20, wherein the button tags comprise at least one

selected from a group consisting of a DefineButton tag, a DefineButton2 tag, a

DefineButtonCxform tag and a DefineButtonSound tag.

23. A method of processing moving picture based upon vector graphic in

accordance with kinds of wireless terminals comprising the steps of:

collecting kind information about wireless terminals;

detecting the elements of the moving picture to be transmitted to the wireless

terminal;

determining whether at least one selected from a group consisting of color

information, font information, image information and sound information conespond to

information, image information and sound information; and

transforming at least one selected from a group consisting of color information,

font information, image information and sound information so as to be suitable for a

kind of the wireless terminal, when at least one selected from a group consisting of

color information, font information, image information and sound information does not

conespond to the kind of the wireless terminal.

24. The method in claim 23, wherein the kind information about wireless

terminals comprise at least one selected from a group consisting of a size of display

screen, a number of color to be displayed and a sound format to be outputted-

25. The method in claim 23 further comprising the step of recording a

result of transforming the moving picture in the header of the moving picture.

26. A method of processing Macromedia Hash moving pictures in

accordance with kinds of wireless terminals comprising the steps of:

collecting kind information about wireless terminals;

detecting the tags of the Macromedia Hash moving picture to be transmitted to

the wireless terminal;

determining whether at least one selected from a group consisting of a shape tag,

a font tag, a bitmap tag and a sound tag correspond to the kind of the wireless terminal

that receives the Hash moving picture, when the Macromedia Hash moving picture

include at least one selected from a group consisting of a shape tag, a font tag, a bitmap

tag and a sound tag; and

transforming at least one selected from a group consisting of a shape tag, a font

tag, a bitmap tag and a sound tag so as to be suitable for a kind of the wireless terminal,

when at least one selected from a group consisting of a shape tag, font tag, bitmap tag

and sound tag does not conespond to the kind of the wireless terminal-

27. The method in claim 26, wherein the shape tags comprise at least one selected from a group consisting of a DefineShape tag, a DefineShape2 tag, a

DefineShape3 tag and a DefineMoφhShape tag.

28. The method in claim 26, wherein the font tags comprise at least one

selected from a group consisting of a DefineFont tag, a DefineFont2 tag and a

DefineFontlnfo tag.

29. The method in claim 26, wherein the bitmap tags comprise at least one

selected from a group consisting of a DefineBits tag, a DefineBitsJPEG2 tag, a

DefineJPEG3 tag, a DefineBitsLossless tag, a DefineBitsLossless2 tag and a

JPEGTables tag-

30. The method in claim 26, wherein the sound tags comprise at least one

selected from a group consisting of a DefineSound tag, a SoundStreamBlock tag, a

SoundStreamHead tag and a SoundStreamHead2 tag.

31. A method of processing moving picture based upon vector graphic so

as to be used in wireless terminals via a wireless network comprising the steps of:

receiving the moving picture based upon vector graphic;

detecting transform information from the header of the moving picture; determining whether at least one transformation between an off-line

terminals is accomplished to the moving picture using the transform information; and

performing at least one transformation between the off-line transformation and

on-line transformation for the moving picture in accordance with the result of

determination.

32. The method in claim 31, wherein the transform information is what

indicates the result of at least one transformation between the off-line transformation

and on-line transformation.

33. The method in claim 31, wherein the off-line transformation comprises

the steps of:

detecting elements that constitute the moving picture;

detecting frame display elements, which are used for displaying characters on a

screen, among the elements;

detecting detailed elements in the frame display elements; and

deleting the frame display element, when the detailed elements of the frame

display element are just composed of space arrangement elements for arranging the

characters in the space-

34. The method in claim 33 further comprising the steps of:

detecting a Bezier curve from the moving picture based upon vector graphic;

curve by connecting at least three control points that define the Bezier curve;

generating a third straight-line tangent to the Bezier curve by interconnecting

midpoints of the first straight-line and the second straight-line;

point between the Bezier curve and the third straight-line;

repeating recursively said step of dividing for the sub Bezier curves, when an

straight-line, is not less than a pre-determined reference value; and

curve is not exceeding reference value.

35- The method in claim 33 further comprising the steps of:

detecting location information of a mouse and input information of mouse buttons within a moving picture based upon vector graphic;

the mouse and inputs of the mouse buttons;

deleting some state information that does not conespond to a pre-determined

moving picture;

recognizing locations of the control buttons of the moving picture displayed in

the screen of the wireless terminal and then constracting a button network that

interconnects the control buttons of the moving picture;

buttons of the wireless terminal; and

among the directional buttons and input buttons of the wireless terminal-

36. The method in claim 33 further comprising the steps of:

detecting a plurality of frame information composed of a moving picture;

computing characteristic values of a motion for each frame; computing sequentially variations of a characteristic value of the motion for

continuous two frames; and

deleting one frame of the two frame, when the variation of the characteristic

value of motion is not exceeding a pre-determined reference variation.

37. The method in claim 31, wherein the on-line transformation comprises

the steps of:

collecting kind information about wireless terminals;

detecting the elements of the moving picture to be transmitted to the wireless

terminal;

determining whether at least one selected from a group consisting of color

information, font information, image information and sound information corresponds to

information, image information and sound information; and

correspond to the kind of the wireless terminal.

38. A method of processing Macromedia Hash moving picture so as to be

used in wireless terminals via a wireless network comprising the steps of:

receiving the Macromedia Hash moving picture;

detecting transform information from the header of the Macromedia Flash

moving picture;

determining whether at least one transformation between an off-line

terminals is accomplished to the Macromedia Hash moving picture using the transform

information; and

performing at least one transformation between the off-line transformation and

on-line transformation for the Macromedia Hash moving picture in accordance with the

result of determination.

39. The method in claim 38, wherein the off-line transformation comprises

the steps of:

detecting tag information of the Macromedia Hash moving picture;

deleting a ShowFrame tag within the Hash moving picture when only

PlaceObject tags exist in the ShowFrame tag;

transforming curve data of a shape tag within the Macromedia Hash moving picture to straight-line data; and

transforming a mouse event within the Macromedia Hash moving picture to a

button event of the wireless terminal.

40. The method in claim 38, wherein the on-line transformation comprises

the steps of:

collecting kind information about wireless terminals;

detecting the elements of the Macromedia Hash moving picture to be

transmitted to the wireless terminal;

a font tag, a bitmap tag and a sound tag conesponds to the kind of the wireless terminal

that receives the Macromedia Hash moving picture, when the Macromedia Hash

moving picture include at least one selected from a group consisting of a shape tag, a

font tag, a bitmap tag and a sound tag; and

when at least one selected from a group consisting of a shape tag, a font tag, a bitmap

tag and a sound tag does not correspond to the kind of the wireless terminal.

41. A system of transforming moving picture based upon vector graphic so as to be suitable for wireless terminals coupled with a gateway which transmits the

moving picture based upon vector graphic to the wireless terminals comprising:

a database with the moving pictures based upon vector graphic;

an off-line transformer for transforming the moving picture that selected from

said database for wireless delivery; and

a wire protocol communication device for transmitting the moving picture based

through a wire network

wherein said off-line transformer comprises an element detector for detecting

frame display elements, which are for displaying characters on a screen, among the

elements of the moving picture and an element controller for deleting the frame display

element, when the frame display element are just composed of space anangement

elements for ananging the characters in the space.

42. The system in claim 41, wherein said off-line transformer further

comprises a curve transformer for transforming curves within the moving picture to

straight-lines.

43- The system in claim 42, wherein said curve transformer comprises:

a curve detector for detecting a Bezier curve from the moving picture based upon vector graphic;

an approximate straight-line generator for generating a first straight-line and a

second straight-line tangent to the Bezier curve by connecting at least three control

points that define the Bezier curve and for generating a third straight-line tangent to the

Bezier curve by interconnecting midpoints of the first straight-line and the second

straight-line;

a curve divider for dividing the Bezier curve into two sub Bezier curves on the

basis of the contact point between the Bezier curve and the third straight-line;

a curve division controller for repeating recursively said step of dividing for the

sub Bezier curves, when an approximate distance, which is a distance between a

crossing point of the first straight-line and the second straight-line and the contact point

on the Bezier curve by the third straight-line, is not less than a pre-determined reference

value; and

a straight-line processor for substituting the first and second straight-lines that

interconnect at least three control points of the sub Bezier curve, which is divided by

said step of dividing, for corresponding sub Bezier curve, when each approximate

distance for each sub Bezier curve is not exceeding a pre-determined reference value.

44- The system in claim 41, wherein said off-line transformer further

comprises an event transformer for transforming mouse events constituting a moving picture to button events of the wireless terminal.

45. The system in claim 41, wherein said event transformer comprises:

a button selector for selecting a directional button and an input button among a

plurality of button attached to the wireless terminal;

a state controller for deleting some state information that does not correspond to

the directional button and the input button in the wireless terminal among a plurality of

button state for the moving picture, which have actions by receiving locations of a

mouse and inputs of the mouse button;

a network constructor for recognizing a button location of the moving picture

displayed in a screen of the wireless terminal, and then constructing a button network

that interconnects the buttons of the moving picture; and

a moving picture processor for selecting and performing a function of the button

of the moving picture with a specific location on the button network, in accordance with

a motion of the directional button and the input button of the wireless terminal.

46. The system in claim 41 further comprising a frame controller for

deleting one frame of continuous similar frames among a plurality of frame constituting

the moving picture.

47. The system in claim 46, wherein said frame controller comprises:

a frame detector for detecting a plurality of frame information constituting a

moving picture;

an arithmetical processor for computing characteristic values of a motion for

each frame, and for computing sequentially variations of the characteristic value of the

motion for continuous two frames; and

a frame processor for deleting one frame of the two frame, when the variation of

the characteristic value of motion is not exceeding a pre-determined reference variation.

48. The system in claim 41 further comprising a deletion list controller for

registering elements or frames to be deleted in a deletion list, and for deleting selected

elements or frames at regular interval among those of registered in the deletion list.

49. The system in claim 41 further comprising a header controller for

recording a result of transforming the moving picture in the header of the moving

picture.

50. A gateway system of transforming and delivering moving picture based

upon vector graphic so as to be used in wireless terminals coupled with a server which

is for delivering the moving picture based upon vector graphic comprising: an off-line transformer for detecting a moving picture based upon that

delivery; and

a wireless protocol communication device for transmitting the moving picture

based upon vector graphic, which is transformed by said off-line transformer, to user's

wireless terminal through a wireless network

wherein said off-line transformer comprises an element detector for detecting

frame display elements, which are for displaying characters on a screen, among

element, when the frame display element are just composed of space anangement

elements for arranging the characters in the space.

51. A gateway system of transforming and delivering moving picture based

is for delivering the moving picture based upon vector graphic comprising:

a database with kind information about wireless terminals;

an on-line transformer for transforming the moving picture based upon vector

graphic that transmitted from the server so as to be used in the wireless terminal in

accordance with kind of the wireless terminal; and

a wireless protocol communication device for transmitting the moving picture based upon vector graphic, which is transformed by said on-line transformer, to the

user's wireless terminal through a wireless network,

wherein said on-line transformer comprises an element detector for detecting

elements of a moving picture to be transmitted to a wireless terminal and at least one

transformer selected from a group consisting of a color transformer for transforming a

color element so as to be suitable for a kind of the wireless terminal among the elements

of the moving picture, a font transformer for transforming a font element to shape

information by dividing the font element so as to be suitable for a kind of the wireless

terminal, when the font information among the elements of the moving picture does not

conespond to the kind of the wireless terminal, an image transformer for transforming

an image element to pixel information so as to be suitable for a kind of the wireless

terminal among the elements of the moving picture, and a sound transformer for

transforming a sound element so as to be suitable for a kind of the wireless terminal

among the elements of the moving picture-

52. The gateway system in claim 51 further comprising the header

controller for recording a result of transforming the moving picture in the header of the

moving picture-

53. A gateway system of transforming and delivering a moving picture based upon vector graphic so as to be used in wireless terminals coupled with a server

which is for delivering the moving picture based upon vector graphic comprising:

a database with kind information about wireless terminals;

a transformation judger for determining whether the moving picture based upon

vector graphic, which is transmitted from the server, has been accomplished an off-line

transformation by detecting transform information;

an off-line transformer for transforming the moving picture, which has not been

accomplished the off-line transformation, so as to be suitable for wireless delivery in

accordance with the result of transforming;

an on-line transformer for transforming the moving picture, which has been

accomplished the off-line transformation, so as to be used in the wireless terminal in

accordance with a kind of the wireless terminal;

a wireless protocol communication device for transmitting the moving picture

based upon vector graphic, which is transformed by said off-line transformer or on-line

transformer, to the user's wireless terminal through a wireless network

wherein said off-line transformer comprises an element detector for detecting

frame display elements, which are for displaying characters on a screen, among

element, when the frame display element are just composed of space arrangement

elements for arranging the characters in the space, and wherein said on-line transformer comprises an element detector for detecting

elements of a moving picture to be transmitted to a wireless terminal, and at least one

terminal among the elements of the moving picture and a sound transformer for

among the elements of the moving picture-

54. A wireless terminal of transforming a moving picture based upon

vector graphic transmitted from a gateway in accordance with a kind of a wireless

terminal comprising:

a memory system with kind information about wireless terminals;

a transformation judger for determining whether the moving picture based upon

vector graphic, which is transmitted from the gateway, has been accomplished an on-

line transformation by detecting transform information; an on-line transformer for transforming the moving picture, which has not been

accomplished the on-line transformation, so as to be used in the wireless terminal in

accordance with a kind of the wireless terminal on the basis of the result of

transforming;

a moving picture controller for processing the moving picture based upon vector

graphic, which is transformed through the on-line transformer, so as to be recognized by

a user; and

a display for displaying the moving picture on a screen by the process of the

moving picture controller,

wherein said on-line transformer comprises an element detector for detecting

correspond to the kind of the wireless terminal, an image transformer for transforming

terminal among the elements of the moving picture and a sound transformer for

transforming a sound element so as to be suitable for a kind of the wireless terminal among the elements of the moving picture.

55. The wireless terminal in claim 54, wherein said moving picture

controller comprises:

a parsing processor for analyzing sentences of the moving picture so as to

display the moving picture having done the on-line transformation; and

a rendering processor for visualizing the moving picture so as to be recognized

by a user.

56. A computer-readable medium having stored thereon computer-

executable instructions and realized in concrete by a program of instructions, which

could be executable by digital processing unit, for transforming curve data within a

moving picture based upon vector graphic to straight-line data so as to be used in a

wireless terminal, said method of transforming data comprising the steps of:

detecting a Bezier curve from the moving picture based upon vector graphic;

curve by connecting at least three control points that define the Bezier curve;

generating a third straight-line tangent to the Bezier curve by interconnecting

midpoints of the first straight-line and the second straight-line;

dividing the Bezier curve into two sub Bezier curves on the basis of the contact point between the Bezier curve and the third straight-line;

repeating said step of dividing recursively for the sub Bezier curves, when an

straight-line, is not less than a pre-determined reference value; and

corresponding sub Bezier curve, when each approximate distance for each sub Bezier

curve is not exceeding a pre-determined reference value.

57. A computer-readable medium having stored thereon computer-

could be executable by digital processing unit, for transforming mouse events within a

moving picture based upon vector graphic to keypad events so as to be used in a

wireless terminal, said method of transforming events comprising the steps of:

detecting location information of a mouse and input information of mouse

buttons within the moving picture based upon vector graphic;

the mouse and inputs of the mouse buttons; deleting some state information that does not correspond to a pre-determined

moving picture;

recognizing locations of the control buttons of the moving picture displayed in

the screen of the wireless terminal and then constracting a button network that

interconnects the control buttons of the moving picture;

receiving at least one button motion among the directional buttons and input

buttons of the wireless terminal; and

among the directional buttons and input buttons of the wireless terminal-

58- A computer-readable medium having stored thereon computer-

could be executable by digital processing unit, for reducing frame data within a moving

picture based upon vector graphic so as to be used in a wireless terminal, said method of

reducing frame data comprising the steps of:

detecting a plurality of frame information composed of a moving picture;

computing characteristic values of a motion for each frame; computing sequentially variations of the characteristic value of the motion for

continuous two frames; and

deleting one frame of the two frame, when the variation of the characteristic

value of the motion is not exceeding a pre-determined reference variation.

59. A computer-readable medium having stored thereon computer-

executable instructions and realized in concrete by a program of instractions, which

could be executable by digital processing unit, for reducing size of moving picture

based upon vector graphic so as to be used in a wireless terminal, said method of

reducing size of moving picture comprising the steps of:

detecting elements that constitute a moving picture;

detecting frame display elements, which are for displaying characters on a

screen, among the elements;

deleting the frame display element, when the frame display elements are just

composed of space arrangement elements for arranging the characters in a space-

60. A computer-readable medium having stored thereon computer-

could be executable by digital processing unit, for reducing size of Macromedia Hash

moving picture so as to be used in a wireless terminal, said method of reducing the Macromedia Hash moving picture comprising the steps of:

detecting tag information of the Macromedia Flash moving picture;

deleting a ShowFrame tag within the Macromedia Hash moving picture when

only PlaceObject tags exist in the ShowFrame tag;

transforming curve data in a shape tag within the Macromedia Hash moving

picture to straight-line data; and

transforming a mouse event within the Macromedia Hash moving picture to a

button event of the wireless terminal.

61. A computer-readable medium having stored thereon computer-

could be executable by digital processing unit, for transforming a moving picture based

upon vector graphic so as to be used in a wireless terminal in accordance with kinds of

wireless terminals, said method of transforming the moving picture comprising the steps

of:

collecting kind information about wireless terminals;

detecting elements of the moving picture to be transmitted to the wireless

terminal;

determining whether at least one selected from a group consisting of color

information, font information, image information and sound information corresponds to the kind of the wireless terminal that receives the moving picture, when the elements

information, image information and sound information; and

conespond to the kind of the wireless terminal.

62- A computer-readable medium having stored thereon computer-

could be executable by digital processing unit, for processing Macromedia Hash

moving picture so as to be used in a wireless terminal in accordance with kinds of

wireless terminals, said method of processing the Macromedia Hash moving picture

comprising the steps of:

collecting kind information about wireless terminals;

detecting tags of the Macromedia Hash moving picture to be transmitted to the

wireless terminal;

a font tag, a bitmap tag and a sound tag corresponds to the kind of the wireless terminal that receives the Macromedia Flash moving picture, when the Macromedia Flash

font tag, a bitmap tag and a sound tag; and

tag and a sound tag does not correspond to the kind of the wireless terminal.

63. A computer-readable medium having stored thereon computer-

could be executable by digital processing unit, for processing a moving picture based

upon vector graphic so as to be used in a wireless terminal, said method of processing

the moving picture comprising the steps of:

receiving a moving picture based upon vector graphic;

detecting transform information from the header of the moving picture; and

performing at least one transformation between the off-line transformation for

wireless delivery and on-line transformation for the moving picture in accordance with

kinds of the wireless terminals.

64. A computer-readable medium having stored thereon computer- executable instractions and realized in concrete by a program of instructions, which

could be executable by digital processing unit, for processing Macromedia Flash

moving picture so as to be used in a wireless terminal, said method of processing the

Macromedia Hash moving picture comprising the steps of:

receiving a Macromedia Hash moving picture;

detecting transform information from the header of the Macromedia Flash

moving picture; and

performing at least one transformation between the off-line transformation for

wireless delivery and on-line transformation for the Macromedia Hash moving picture

in accordance with kinds of wireless terminals.