WO2007061157A1 - Mobile external display device in use wireless communication - Google Patents

Mobile external display device in use wireless communication Download PDF

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Publication number
WO2007061157A1
WO2007061157A1 PCT/KR2006/000788 KR2006000788W WO2007061157A1 WO 2007061157 A1 WO2007061157 A1 WO 2007061157A1 KR 2006000788 W KR2006000788 W KR 2006000788W WO 2007061157 A1 WO2007061157 A1 WO 2007061157A1
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WO
WIPO (PCT)
Prior art keywords
display device
external display
data
mobile terminal
file
Prior art date
Application number
PCT/KR2006/000788
Other languages
French (fr)
Inventor
Jong Chul Kim
Original Assignee
Dream To Reality Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dream To Reality Co., Ltd. filed Critical Dream To Reality Co., Ltd.
Publication of WO2007061157A1 publication Critical patent/WO2007061157A1/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/045—Zooming at least part of an image, i.e. enlarging it or shrinking it
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory

Definitions

  • the present invention relates to a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, and more particularly to a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that a document or contents, which can be restrictively seen in the mobile terminal having a small liquid crystal display, can be viewed in a large external display device connected to the mobile terminal.
  • an object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that an office document or various contents can be viewed in the mobile terminal having a small liquid crystal display on movement thereof and then office document or various contents can be viewed in the large external display device in case of connecting the mobile terminal to the external display device such as a personal computer, a monitor or a beam projector.
  • An anther object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that a data received from the mobile terminal by wireless is stored therein and then, transmitted to the external display device for presenting it under the control of the mobile terminal.
  • Further anther object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that only a data is transmitted in the mobile terminal and an image is converged in the external display device, so that the resource of the mobile terminal is saved and the necessary time is shortened.
  • Further anther object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that the font of the file is rendered in a vector form, so that the display quality of the computer is the same as that of the mobile terminal.
  • the present invention provides a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device comprising the mobile terminal having a bluetooth port or an IrDA (Infrared Data Association) port, a computer having a bluetooth port or an IrDA port and the external display device directly connected to the computer or connected to the computer through a network comprising a wireless communication part for communicating with the mobile terminal having the bluetooth port or the IrDA port; a memory part for storing a data received from the wireless communication part; a receiving data determination part for determining as to whether the received data is a file for displaying on a liquid crystal display of the external display device or a data for transmitting a command signal such as up and down or right and left scrolls, a page moving and so on; a receiving file conversion part for conversing the received file into any data for displaying on the liquid crystal display of the external display device!
  • IrDA Infrared Data Association
  • a display command execution part for controlling the up and down or the right and left scrolls, the page moving and so on of the external display device in a case that the received data is a data for transmitting the command; a transmission part for transmitting the converged file converged through the receiving file conversion part to the external display device; a display part for displaying the converged file converged through the receiving file conversion part on the liquid crystal of the external display device; a power part for supplying a power to the above parts; and a CPU electrically connected to the above parts and serving to control the above parts over all.
  • the receiving file conversion part converges the received file into any data of color and image form capable of interpreting in the external display device a data.
  • the font of the received file is rendered in a vector form in the receiving file conversion part.
  • the present invention provides a display method between a mobile terminal and an external display device using a wireless communication analyzing as to whether a data received from the mobile terminal is a document or a data for transmitting a command signal such as up and down or right and left scrolls and a page moving and so on by means of a receiving data determination part; font-decoding a word stored in the form of a vector in case of the word; decoding an image of corresponding image data; and converting a display format for displaying.
  • the font decoding step comprises a word decoding step for extracting a vector information and a word code of the corresponding word and decoding the word, a horizontal N-times enlargement and reduction step for horizontally enlarging and reducing the decoded word to a vector value by N- times, a vertical vector converging step for vertically converging the horizontal N-times enlarged and reduced word into a vertical vector, a vertical N-times enlargement and reduction step for vertically enlarging and reducing the converged vertical vector to a vector value by N-times, and a resultant outputting step for outputting a final resultant.
  • a word decoding step for extracting a vector information and a word code of the corresponding word and decoding the word
  • a horizontal N-times enlargement and reduction step for horizontally enlarging and reducing the decoded word to a vector value by N- times
  • a vertical vector converging step for vertically converging the horizontal N-time
  • FIG. 1 is a block diagram illustrating a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device according to one embodiment of the present invention
  • FIG. 2 illustrates an application example of a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention
  • FIG. 3 is a flow chart illustrating a process of treating a file received from a computer in a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention
  • FIG. 4 illustrates a font encoding process of a document format used in a display method between a mobile terminal and an external display device according to one embodiment of the present invention
  • FIG. 5 illustrates a font decoding process among a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
  • FIG. 6 illustrates a vector information decoding process of a corresponding word among a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
  • FIG. 1 is a block diagram illustrating a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device according to one embodiment of the present invention.
  • the mobile interface apparatus 100 using a wireless communication between a mobile terminal and an external display device including the mobile terminal having a bluetooth port or an IrDA (Infrared Data Association) port, a computer having a bluetooth port or an IrDA port and the external display device directly connected to the computer or connected to the computer through a network
  • a wireless communication part 110 for communicating with the mobile terminal having the bluetooth port or the IrDA port a memory part 130 for storing a received data from the wireless communication part 110, a receiving data determination part 120 for determining as to whether the received data is a file for displaying on a liquid crystal display of the external display device or a data for transmitting a command signal such as up and down or right and left scrolls, a page moving and so on, a receiving file conversion part 140 for conversing the received file into any data for displaying on the liquid crystal display of the external display device, a display command execution part 150 for controlling the up and down or the right and left scrolls, the page moving and so on of the external
  • the receiving file conversion part 140 converges the received file into a data containing any color and image form capable of interpreting in the external display device.
  • the wireless communication part 110 for taking charge of the bluetooth or IrDA communication with the mobile terminal first of all, it is necessary to have the bluetooth or IrDA communication functions.
  • the bluetooth or IrDA communication techniques are well-known in the arts.
  • the mobile interface apparatus 100 also has the bluetooth or IrDA communication modules like the mobile terminal.
  • a presentation terminal part (not shown) connected to a terminal of the external display device can be applied to a component video terminal, which is connected to the computer.
  • the presentation terminal part (not shown) can be applied to a RGB terminal and an audio terminal.
  • a presentation terminal part (not shown) is connected to the terminal of the external display device through a cable.
  • the presentation file received from the mobile terminal comes to the mobile interface apparatus 100 according to the present invention through communication channels. Also, the received data is stored in the memory part 130.
  • the memory may be a ram memory or a small hard disk.
  • the received data is converged into any file for displaying according to the framing shape of the data.
  • the receiving file includes a logic for decoding the received data and conversing it in the form of displaying on the external display device.
  • converged file which is converged into any data for displaying on the liquid crystal display of the external display device, as a temporary file.
  • the received file for displaying on the external display device received from the receiving file conversion part 140 includes a font, size and color information of words, font data information, each image information and so on.
  • the present invention can be displayed by means of the above information.
  • ⁇ 37> it can control the external display device for the presentation by means of the manipulation of the key of the mobile terminal. Also, it can be adjusted to the resolution of the external display device for the presentation, not that of the mobile terminal. That is, as though the mobile terminal has the resolution of a QVGA class, in a case that the external display device has the resolution of a XVGA class provided by a LCD projector, it can be converged into the resolution of the XVGA class through the interface apparatus according to the present invention to be displayed.
  • FIG. 2 illustrates an application example of a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention.
  • the user chooses the presentation file in the mobile terminal 300.
  • ⁇ 4i> For example, where the mobile terminal has any file written by a specific document format, the file is chose and transmitted to the memory 130 of the mobile interface apparatus 100. Then, when the transmission is completed, the corresponding file is converged into the temporary file for displaying through the receiving file conversion part 140.
  • the receiving data determination part 120 determines whether the received data is a page moving command signal for moving to the next page or not and then, allows the next page of the corresponding file to be displayed.
  • the receiving data determination part 120 checks it and allows the signals to be transmitted to the receiving file conversion part 140 and then, the receiving file conversion part 140 allows the display area of the screen to be changed by the appointed scroll area.
  • FIG. 3 is a flow chart illustrating a process of treating a file received from a computer in a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention.
  • FIG. 4 illustrates a font encoding process of a document format used in a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
  • FIG. 5 illustrates a font decoding process among a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
  • FIG. 6 illustrates a vector information decoding process of a corresponding word among a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
  • a display method between a mobile terminal and an external display device using a wireless communication comprises a receiving file analyzing step SlOO for analyzing as to whether the data received from the mobile terminal is a document or a data for transmitting a command signal such as up and down or right and left scrolls and a page moving and so on by means of the receiving data determination part 120, a font decoding step SIlO for decoding a word stored in the form of a vector in case of the word, an image decoding step S120 for decoding an image of corresponding image data, and a display format converting step 130 for displaying.
  • the receiving data determination part 120 analyzes whether the data received from the mobile terminal is a document file or a command signal file for up and down or right and left scrolls and so on (SlOO). At this time, in case of the file for displaying, the file is displayed on the display device through the font decoding step SIlO, the image decoding step S120 and the display format converting step 130 in order.
  • the font decoding step 110 includes a word decoding step Sill for extracting the vector information and the word code of the corresponding word and decoding the word, a horizontal N-times enlargement and reduction step S112 for horizontally enlarging and reducing the decoded word to a vector value by N-times, a vertical vector converging step S113 for vertically converging the horizontal N-times enlarged and reduced word into a vertical vector, a vertical N-times enlargement and reduction step S114 for vertically enlarging and reducing the converged vertical vector to a vector value by N-times, and a resultant outputting step S115 for outputting a final resultant.
  • a word decoding step Sill for extracting the vector information and the word code of the corresponding word and decoding the word
  • a horizontal N-times enlargement and reduction step S112 for horizontally enlarging and reducing the decoded word to a vector value by N-times
  • the vector information and a word code of the corresponding word are extracted to be decoded (Sill) and then, the decoded word is horizontally enlarged and reduced to a vector value by N-times (S112). Thereafter, the horizontal N-times enlarged and reduced word is vertically converged into a vertical vector (S113) and the converged vertical vector is vertically enlarged and reduced to a vector value by N-times (S114), so that the final resultant is outputted S115.
  • FIG. 6 illustrates an example of the extraction of the vector information and a word code from the corresponding word.
  • a word "1" is analyzed from the most upper portion.
  • the beginning point and the size thereof are stored and it checks out as to whether any vector is more existent in the corresponding line or not. If not, it checks out whether the corresponding line is the lowest portion and then, the routine is completed. If the vector is more existent, the above process is repeated. [Industrial Applicability]
  • the present invention relates to a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that a document or contents, which can be restrictively seen in the mobile terminal having a small liquid crystal display, can be viewed in a large external display device connected to the mobile terminal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Telephone Function (AREA)

Abstract

A mobile interface apparatus using the wireless communication between the mobile terminal and the external display device and the display method using the same are disclosed. The mobile interface apparatus capable of receiving and transmitting the data between the mobile terminal and the external display device by wireless is provided, so that the data stored in the mobile terminal can be transmitted to the external display device by wireless without connecting a separate data connection port and it can be viewed in the large liquid crystal display of the external display device on a enlarged scale, whereby providing the convenience to the user, and it is unnecessary to mount a connecting means on the external device itself, whereby the manufacturing cost is reduced.

Description

[DESCRIPTION] [Invention Title]
MOBILE EXTERNAL DISPLAY DEVICE IN USE WIRELESS COMMUNICATION [Technical Field]
<i> The present invention relates to a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, and more particularly to a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that a document or contents, which can be restrictively seen in the mobile terminal having a small liquid crystal display, can be viewed in a large external display device connected to the mobile terminal.
[Background Art]
<2> Conventionally, in a mobile terminal, various office documents, a magazine or a newspaper and so on cannot be viewed in the shape of an original document. However, recently, it can be viewed in the various types in the mobile terminal having the small liquid crystal display identically with the shape of the original document, owing to the development of various software techniques.
<3> However, since the bulk of the mobile terminal have a small liquid crystal display, it is visually inconvenient for viewing in the shape of the original document on account of the frequent up and down or right and left scrolls. In order to overcome this inconvenience, enlargement and reduction function or a text viewing function and so on are provided. However, the mobile terminal is considerably deteriorated in terms of the convenience of the viewing thereof in comparison with the large display device such as a monitor or a beam projector and so on as usual. [Disclosure] [Technical Problem]
<4> Accordingly, the present invention has been made to solve the above- mentioned problems occurring in the prior art, and an object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that an office document or various contents can be viewed in the mobile terminal having a small liquid crystal display on movement thereof and then office document or various contents can be viewed in the large external display device in case of connecting the mobile terminal to the external display device such as a personal computer, a monitor or a beam projector.
<5> An anther object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that a data received from the mobile terminal by wireless is stored therein and then, transmitted to the external display device for presenting it under the control of the mobile terminal.
<6> Further anther object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that only a data is transmitted in the mobile terminal and an image is converged in the external display device, so that the resource of the mobile terminal is saved and the necessary time is shortened.
<?> Further anther object of the present invention is to provide a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that the font of the file is rendered in a vector form, so that the display quality of the computer is the same as that of the mobile terminal. [Technical Solution]
<8> To accomplish the objects, the present invention provides a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device comprising the mobile terminal having a bluetooth port or an IrDA (Infrared Data Association) port, a computer having a bluetooth port or an IrDA port and the external display device directly connected to the computer or connected to the computer through a network comprising a wireless communication part for communicating with the mobile terminal having the bluetooth port or the IrDA port; a memory part for storing a data received from the wireless communication part; a receiving data determination part for determining as to whether the received data is a file for displaying on a liquid crystal display of the external display device or a data for transmitting a command signal such as up and down or right and left scrolls, a page moving and so on; a receiving file conversion part for conversing the received file into any data for displaying on the liquid crystal display of the external display device! a display command execution part for controlling the up and down or the right and left scrolls, the page moving and so on of the external display device in a case that the received data is a data for transmitting the command; a transmission part for transmitting the converged file converged through the receiving file conversion part to the external display device; a display part for displaying the converged file converged through the receiving file conversion part on the liquid crystal of the external display device; a power part for supplying a power to the above parts; and a CPU electrically connected to the above parts and serving to control the above parts over all.
<9> Preferably, the receiving file conversion part converges the received file into any data of color and image form capable of interpreting in the external display device a data.
<io> Preferably, the font of the received file is rendered in a vector form in the receiving file conversion part.
<π> To accomplish the objects, the present invention provides a display method between a mobile terminal and an external display device using a wireless communication analyzing as to whether a data received from the mobile terminal is a document or a data for transmitting a command signal such as up and down or right and left scrolls and a page moving and so on by means of a receiving data determination part; font-decoding a word stored in the form of a vector in case of the word; decoding an image of corresponding image data; and converting a display format for displaying.
<i2> Preferably, the font decoding step comprises a word decoding step for extracting a vector information and a word code of the corresponding word and decoding the word, a horizontal N-times enlargement and reduction step for horizontally enlarging and reducing the decoded word to a vector value by N- times, a vertical vector converging step for vertically converging the horizontal N-times enlarged and reduced word into a vertical vector, a vertical N-times enlargement and reduction step for vertically enlarging and reducing the converged vertical vector to a vector value by N-times, and a resultant outputting step for outputting a final resultant. [Advantageous Effects]
<13> As can be seen from the foregoing, in the mobile interface apparatus using the wireless communication between the mobile terminal and the external display device and the display method using the same, there are effects in that the mobile interface apparatus capable of receiving and transmitting the data between the mobile terminal and the external display device by wireless is provided, so that the data stored in the mobile terminal can be transmitted to the external display device by wireless without connecting a separate data connection port and it can be viewed in the large liquid crystal display of the external display device on a enlarged scale, whereby providing the convenience to the user, and it is unnecessary to mount a connecting means on the external device itself, whereby the manufacturing cost is reduced. [Description of Drawings]
<i4> The above as well as the other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which-"
<i5> FIG. 1 is a block diagram illustrating a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device according to one embodiment of the present invention;
<i6> FIG. 2 illustrates an application example of a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention;
<17> FIG. 3 is a flow chart illustrating a process of treating a file received from a computer in a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention;
<18> FIG. 4 illustrates a font encoding process of a document format used in a display method between a mobile terminal and an external display device according to one embodiment of the present invention;
<19> FIG. 5 illustrates a font decoding process among a display method between a mobile terminal and an external display device according to one embodiment of the present invention; and
<20> FIG. 6 illustrates a vector information decoding process of a corresponding word among a display method between a mobile terminal and an external display device according to one embodiment of the present invention. [Best Mode]
<2i> A preferred embodiment of the invention will be described in detail below with reference to the accompanying drawings.
<22> FIG. 1 is a block diagram illustrating a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device according to one embodiment of the present invention.
<23> As shown in FIG. 1, the mobile interface apparatus 100 using a wireless communication between a mobile terminal and an external display device including the mobile terminal having a bluetooth port or an IrDA (Infrared Data Association) port, a computer having a bluetooth port or an IrDA port and the external display device directly connected to the computer or connected to the computer through a network comprises a wireless communication part 110 for communicating with the mobile terminal having the bluetooth port or the IrDA port, a memory part 130 for storing a received data from the wireless communication part 110, a receiving data determination part 120 for determining as to whether the received data is a file for displaying on a liquid crystal display of the external display device or a data for transmitting a command signal such as up and down or right and left scrolls, a page moving and so on, a receiving file conversion part 140 for conversing the received file into any data for displaying on the liquid crystal display of the external display device, a display command execution part 150 for controlling the up and down or the right and left scrolls, the page moving and so on of the external display device in a case that the received data is a data for transmitting the command, a transmission part 160 for transmitting the converged file converged through the receiving file conversion part 140 to the external display device, a display part 170 for displaying the converged file converged through the receiving file conversion part 140 on the liquid crystal display of the external display device, a power part 180 for supplying a power to the above parts, and a CPU 190 electrically connected to the above parts and serving to control the above parts over all .
<24> Here, the receiving file conversion part 140 converges the received file into a data containing any color and image form capable of interpreting in the external display device.
<25> Also, in the wireless communication part 110 for taking charge of the bluetooth or IrDA communication with the mobile terminal, first of all, it is necessary to have the bluetooth or IrDA communication functions. The bluetooth or IrDA communication techniques are well-known in the arts.
<26> Moreover, the mobile interface apparatus 100 also has the bluetooth or IrDA communication modules like the mobile terminal.
<27> Here, a presentation terminal part (not shown) connected to a terminal of the external display device can be applied to a component video terminal, which is connected to the computer.
<28> Also, the presentation terminal part (not shown) can be applied to a RGB terminal and an audio terminal.
<29> It is preferable that a presentation terminal part (not shown) is connected to the terminal of the external display device through a cable. <30> The presentation file received from the mobile terminal comes to the mobile interface apparatus 100 according to the present invention through communication channels. Also, the received data is stored in the memory part 130.
<3i> Here, the memory may be a ram memory or a small hard disk.
<32> The received data is converged into any file for displaying according to the framing shape of the data. The receiving file includes a logic for decoding the received data and conversing it in the form of displaying on the external display device.
<33> Here, it defines the converged file, which is converged into any data for displaying on the liquid crystal display of the external display device, as a temporary file.
<34> In case of generating the temporary file in the conventional mobile terminal, for example, where the electronic document of about lMega is converged in the form of an image for displaying, its capacity become larger over scores of megabytes, so that the transmission speed and time grow longer. Accordingly, in order to improve the problem, the temporary file is converged and generated through the computer of the present invention and is transmitted to the display device. Therefore, the transmission speed and time can be considerably fastened and shortened respectively.
<35> The received file for displaying on the external display device received from the receiving file conversion part 140 includes a font, size and color information of words, font data information, each image information and so on. The present invention can be displayed by means of the above information.
<36> Also, in the present invention, it is possible to control the mobile interface apparatus according to the operation of the key of the mobile terminal .
<37> In other words, it can control the external display device for the presentation by means of the manipulation of the key of the mobile terminal. Also, it can be adjusted to the resolution of the external display device for the presentation, not that of the mobile terminal. That is, as though the mobile terminal has the resolution of a QVGA class, in a case that the external display device has the resolution of a XVGA class provided by a LCD projector, it can be converged into the resolution of the XVGA class through the interface apparatus according to the present invention to be displayed.
<38> FIG. 2 illustrates an application example of a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention.
<39> As shown in FIG. 2, the user chooses the presentation file in the mobile terminal 300.
<40> That is, when the user chooses the presentation file and presses the execution key in the mobile terminal 300, the file is transmitted to the mobile interface apparatus 100 and is stored in the memory part 130. Thereafter, the stored file is converged into the temporary file for displaying by means of the operation of the receiving file conversion part 140.
<4i> For example, where the mobile terminal has any file written by a specific document format, the file is chose and transmitted to the memory 130 of the mobile interface apparatus 100. Then, when the transmission is completed, the corresponding file is converged into the temporary file for displaying through the receiving file conversion part 140.
<42> Continuously, where the corresponding file is converged into the temporary file, a first page thereof is sent to the projector 200 or the external display device.
<43> That is, when the user chooses the file in the mobile terminal 300, by way of the above steps, the first page of the file is displayed on the screen of the external display device, which is connected to the PC. The user can move to the next page of the file displayed on the screen by using the key of the mobile terminal 300.
<44> That is, the user presses the arrow key (->) of the mobile terminal 300 and it reaches the mobile interface apparatus 100 through a wireless communication part (not shown). Thereafter, the receiving data determination part 120 determines whether the received data is a page moving command signal for moving to the next page or not and then, allows the next page of the corresponding file to be displayed.
<45> Here, when the user presses the arrow key (<-) of the mobile terminal 300, it can return to the head page.
<46> Also, by using specific keys of the mobile terminal 300, where the command signals such as up and down or right and left scrolls and so on are transmitted, the receiving data determination part 120 checks it and allows the signals to be transmitted to the receiving file conversion part 140 and then, the receiving file conversion part 140 allows the display area of the screen to be changed by the appointed scroll area.
<47> FIG. 3 is a flow chart illustrating a process of treating a file received from a computer in a mobile interface apparatus between a mobile terminal and an external display device according to one embodiment of the present invention.
<48> FIG. 4 illustrates a font encoding process of a document format used in a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
<49> FIG. 5 illustrates a font decoding process among a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
<50> FIG. 6 illustrates a vector information decoding process of a corresponding word among a display method between a mobile terminal and an external display device according to one embodiment of the present invention.
<5i> More concretely, as shown in FIG. 3, a display method between a mobile terminal and an external display device using a wireless communication according to one embodiment of the present invention comprises a receiving file analyzing step SlOO for analyzing as to whether the data received from the mobile terminal is a document or a data for transmitting a command signal such as up and down or right and left scrolls and a page moving and so on by means of the receiving data determination part 120, a font decoding step SIlO for decoding a word stored in the form of a vector in case of the word, an image decoding step S120 for decoding an image of corresponding image data, and a display format converting step 130 for displaying.
<52> More concretely, the receiving data determination part 120 analyzes whether the data received from the mobile terminal is a document file or a command signal file for up and down or right and left scrolls and so on (SlOO). At this time, in case of the file for displaying, the file is displayed on the display device through the font decoding step SIlO, the image decoding step S120 and the display format converting step 130 in order.
<53> As shown in FIG. 4 and FIG. 5, the font decoding step 110 includes a word decoding step Sill for extracting the vector information and the word code of the corresponding word and decoding the word, a horizontal N-times enlargement and reduction step S112 for horizontally enlarging and reducing the decoded word to a vector value by N-times, a vertical vector converging step S113 for vertically converging the horizontal N-times enlarged and reduced word into a vertical vector, a vertical N-times enlargement and reduction step S114 for vertically enlarging and reducing the converged vertical vector to a vector value by N-times, and a resultant outputting step S115 for outputting a final resultant.
<54> More concretely, firstly, the vector information and a word code of the corresponding word are extracted to be decoded (Sill) and then, the decoded word is horizontally enlarged and reduced to a vector value by N-times (S112). Thereafter, the horizontal N-times enlarged and reduced word is vertically converged into a vertical vector (S113) and the converged vertical vector is vertically enlarged and reduced to a vector value by N-times (S114), so that the final resultant is outputted S115.
<55> FIG. 6 illustrates an example of the extraction of the vector information and a word code from the corresponding word.
<56> As shown in FIG. 6, a word "1" is analyzed from the most upper portion. Here, next to the vector extracting, the beginning point and the size thereof are stored and it checks out as to whether any vector is more existent in the corresponding line or not. If not, it checks out whether the corresponding line is the lowest portion and then, the routine is completed. If the vector is more existent, the above process is repeated. [Industrial Applicability]
<57> The present invention relates to a mobile interface apparatus using a wireless communication between a mobile terminal and an external display device and a display method using the same, in that a document or contents, which can be restrictively seen in the mobile terminal having a small liquid crystal display, can be viewed in a large external display device connected to the mobile terminal.
<58> While this invention has been described in connection with what are presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments and the drawings, but, on the contrary, it is intended to cover various modifications and variations within the spirit and scope of the appended claims.

Claims

[CLAIMS] [Claim 1]
A mobile interface apparatus using a wireless communication between a mobile terminal and an external display device comprising the mobile terminal having a bluetooth port or an IrDA (Infrared Data Association) port, a computer having a bluetooth port or an IrDA port and the external display device directly connected to the computer or connected to the computer through a network comprising: a wireless communication part for communicating with the mobile terminal having the bluetooth port or the IrDA port; a memory part for storing a data received from the wireless communication part ; a receiving data determination part for determining as to whether the received data is a file for displaying on a liquid crystal display of the external display device or a data for transmitting a command signal such as up and down or right and left scrolls, a page moving and so on; a receiving file conversion part for conversing the received file into any data for displaying on the liquid crystal display of the external display device; a display command execution part for controlling the up and down or the right and left scrolls, the page moving and so on of the external display device in a case that the received data is a data for transmitting the command; a transmission part for transmitting the converged file converged through the receiving file conversion part to the external display device; a display part for displaying the converged file converged through the receiving file conversion part on the liquid crystal of the external display device; a power part for supplying a power to the above parts; and a CPU electrically connected to the above parts and serving to control the above parts over all. [Claim 2]
A mobile interface apparatus using a wireless communication between a mobile terminal and an external display device as claimed in claim 1, wherein the receiving file conversion part converges the received file into any data of color and image form capable of interpreting in the external display device a data. [Claim 3]
A mobile interface apparatus using a wireless communication between a mobile terminal and an external display device as claimed in claim 1, wherein the font of the received file is rendered in a vector form in the receiving file conversion part. [Claim 4]
A display method between a mobile terminal and an external display device using a wireless communication analyzing as to whether a data received from the mobile terminal is a document or a data for transmitting a command signal such as up and down or right and left scrolls and a page moving and so on by means of a receiving data determination part! font-decoding a word stored in the form of a vector in case of the word; decoding an image of corresponding image data; and converting a display format for displaying. [Claim 5]
A display method as claimed in claim 1, wherein the font decoding step comprises a word decoding step for extracting a vector information and a word code of the corresponding word and decoding the word, a horizontal N-times enlargement and reduction step for horizontally enlarging and reducing the decoded word to a vector value by N-times, a vertical vector converging step for vertically converging the horizontal N-times enlarged and reduced word into a vertical vector, a vertical N-times enlargement and reduction step for vertically enlarging and reducing the converged vertical vector to a vector value by N-times, and a resultant outputting step for outputting a final resultant .
PCT/KR2006/000788 2005-10-19 2006-03-07 Mobile external display device in use wireless communication WO2007061157A1 (en)

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