WO2006028309A1 - Mobile terminal transmitting data using by controlling screen and method for transmitting data using by controlling screen of the mobile terminal - Google Patents

Mobile terminal transmitting data using by controlling screen and method for transmitting data using by controlling screen of the mobile terminal Download PDF

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Publication number
WO2006028309A1
WO2006028309A1 PCT/KR2004/002372 KR2004002372W WO2006028309A1 WO 2006028309 A1 WO2006028309 A1 WO 2006028309A1 KR 2004002372 W KR2004002372 W KR 2004002372W WO 2006028309 A1 WO2006028309 A1 WO 2006028309A1
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WO
WIPO (PCT)
Prior art keywords
display unit
payment information
mobile terminal
image data
binary code
Prior art date
Application number
PCT/KR2004/002372
Other languages
French (fr)
Inventor
Moon-Haeng Huh
Dong-Kook Kim
Eui-Seob Shin
Choong-Ki Kim
Original Assignee
Kbc Inc.
Smartint
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 Kbc Inc., Smartint filed Critical Kbc Inc.
Publication of WO2006028309A1 publication Critical patent/WO2006028309A1/en

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0866—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by active credit-cards adapted therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/322—Aspects of commerce using mobile devices [M-devices]
    • G06Q20/3223—Realising banking transactions through M-devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/02—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP]
    • G06Q20/027—Payment architectures, schemes or protocols involving a neutral party, e.g. certification authority, notary or trusted third party [TTP] involving a payment switch or gateway
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/0806—Details of the card
    • G07F7/0833—Card having specific functional components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/502—LED transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality

Definitions

  • the present invention relates to a mobile terminal for transmitting data by using a screen control and a method of transmitting data by using a screen control of the mobile terminal, and more particularly to, a mobile terminal for transmitting an optical signal containing data by controlling screen output of a display unit of the mobile terminal in a mobile terminal payment system and a method of transmitting data by using the mobile terminal .
  • the mobile phone payment system comprises a mobile phone, an optical receiver, and a control server.
  • the mobile phone transmits an optical signal (containing personal information of a user required to perform payment) to the optical receiver.
  • the optical receiver converts the optical signal transmitted from the mobile phone into an electrical signal and transmits the electrical signal to the control server.
  • the control server performs the payment for the user by using the electrical signal transmitted from the optical signal.
  • the mobile phone stores the personal information of the user (required to perform the payment) in an internal memory.
  • the mobile phone reads out the personal information from the internal memory and converts the personal information into binary information.
  • a backlight built in the mobile phone operates to drive an LCD screen. By turning on and off the backlight, a predetermined optical signal is generated and transmitted.
  • the optical receiver comprises an optical sensor for receiving the optical signal (generated by turning on and off the backlight of the mobile phone) , converting the received optical signal into an electrical signal, and transmitting the electrical signal to a control unit of the optical receiver.
  • the control unit of the optical receiver comprises a data check unit for determining whether or not there is an error in the electrical signal and an encrypting unit for encrypting the electrical signal if there is no error in the electrical signal. Next, the control unit transmits the non-error electrical signal.
  • organic light emitting diodes or devices self luminous devices
  • the organic light emitting devices are self luminous devices
  • the organic light emitting devices have a good viewing characteristic in a dark place or in a highly bright place illuminated by external light.
  • a backlight is unnecessary, so that the weight of the organic light emitting devices can be reduced down to 1/3 of the TFT LCD apparatus.
  • the response rate is higher than 1000 times of the response rate of the TFT LCD apparatus, movi.ng picture can be implemented without latent image. Therefore, the organic light emitting diodes has been spotlighted as a next generation display device for mobile terminals.
  • the backlight of the LCD is turned on and off to transmit the data as an optical signal.
  • the aforementioned mobile phone payment system cannot be applied to a mobile terminal using the organic or inorganic light emitting diode without a backlight.
  • an object of the present invention is to provide a mobile terminal for transmitting data as an optical signal by controlling a screen operation to be used for a mobile phone payment system.
  • Another object of the present invention is to provide a method of transmitting data as an optical signal in a mobile terminal having no backlight such as an organic or inorganic light emitting device.
  • Still another object of the present invention is to provide a mobile terminal for transmitting data as an optical signal by controlling a screen, wherein the screen is divided into a plurality of sub screens, thereby increasing a data transmission rate. Disclosure of the Invention
  • a mobile terminal for transmitting data by using a screen control, comprising a memory, a display unit, and a control unit for controlling an overall operation of the mobile terminal, wherein the control unit comprises: a payment information storage module for storing payment information used to perform payment of a user in the memory; a brightness level setting module for selecting two levels from brightness levels of the display unit and setting predetermined brightness levels to first and second image data corresponding to the two selected levels; a payment information converting module for reading out the payment information stored in the memory by the payment information storage module and converting the read-out payment information into a binary code; and a screen output controlling module for sequentially reading out bit values of the binary code converted by the payment information converting module in response to a user's payment request and sequentially outputting predetermined image data to the display unit in accordance with the sequentially read-out bit values, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display
  • a mobile terminal for transmitting data by using a screen control, comprising a memory, a display unit, and a control unit for controlling an overall operation of the mobile terminal, wherein the control unit comprises: a payment information storage module for storing payment information used to perform payment of a user in the memory; a brightness level setting module for selecting two levels from brightness levels of the display unit and setting predetermined brightness levels to first and second image data corresponding to the two selected levels; a payment information converting module for reading out the payment information stored in the memory by the payment information storage module and converting the read-out payment information into a binary code; and a screen output controlling module for sequentially reading out bit values of the binary code converted by the payment information converting module in response to a user's payment request, dividing the bit values of the binary code into at least one bit sequence, dividing a screen of the display unit into sub screens, forming one to one correspondence between the bit sequences and the sub screens, and sequentially outputting image data corresponding to the bit values of the
  • the first image data may correspond to a lowest level of the brightness levels of the display unit
  • the second image data may correspond to a highest level of the brightness levels of the display unit
  • the display unit of the mobile terminal may be constructed with organic or inorganic light emitting devices.
  • a method of transmitting data by using a screen control of a mobile terminal comprising steps of: storing payment information in an internal memory of the mobile terminal and managing the stored payment information in advance; setting first and second image data to be output in accordance with bit values of 0 and 1, respectively; reading out the stored payment information from the memory in response to a user's payment request and converting the read-out payment information into a binary code; and sequentially reading out bit values of the binary code and sequentially outputting image data to the display unit in accordance with the sequentially read-out bit values, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit.
  • a method of transmitting an optical signal of data containing payment information by using a screen control of a mobile terminal comprising steps of: storing payment information in an internal memory of the mobile terminal and managing the stored payment information in advance; setting first and second image data to be output in accordance with bit values of 0 and 1, respectively; reading out the stored payment information from the memory in response to a user's payment request and converting the read-out payment information into a binary code; and dividing the bit values of the binary code into at least one bit sequence, dividing a screen of the display unit into sub screens, and forming one to one correspondence between the bit sequences and the sub screens, wherein the number of sub screens is equal to the number of the bit sequences; and sequentially outputting image data corresponding to the bit values of the bit sequences to the corresponding sub screens, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1,
  • a mobile terminal without additional hardware to a mobile terminal and without using an external wireless network, a mobile terminal can transmit data containing payment information as an optical signal. Therefore, without addition hardware to the mobile terminal, by simply downloading a program, the terminal can perform payment. As a result, the payment service can be provided without increase in cost In addition, by transmitting data as an optical signal using a screen dividing scheme, it is possible to increase a data transmission rate of a mobile terminal.
  • FIG. 1 is a block diagram showing an overall construction of a conventional mobile phone payment system.
  • FIG. 2 is a waveform view of a signal transmitted from a mobile phone to an optical receiver in the mobile phone payment system of FIG. 1.
  • FIG. 3 is a schematic block diagram showing a control unit of a mobile terminal according to the present invention.
  • FIG. 4 is a flowchart for sequentially explaining operations of the mobile terminal according to the present invention.
  • FIG. 5 shows screens of a mobile terminal according to the preferred embodiment of the present invention for exemplifying screen output states where a bit value is 1 and where a bit value is 0.
  • FIG. 6 shows a screen of mobile terminal according to another embodiment for exemplifying a screen output state where a screen of the mobile terminal is divided into four sub screens to transmit data.
  • FIG. 3 is a schematic block diagram showing a control unit of a mobile terminal according to a preferred embodiment of the present invention.
  • FIG. 4 is a flowchart for sequentially explaining operations of the mobile terminal according to the present invention.
  • the control unit of the mobile terminal according to the preferred embodiment comprises a payment information storage module 300, a brightness level setting module 310, a payment information converting module 320, and a screen output control module 340.
  • the payment information storage module 300 receives payment-related information required to perform payment of a user from an external server and stores the payment-related information in an internal memory of the mobile terminal.
  • the payment-related information may include, for example, a credit card number and an expired data in a case where the system according to the present invention is applied to a credit card payment.
  • the payment-related information stored in the mobile terminal may be modified in various manners.
  • the brightness level setting module 310 selects two levels of brightness levels which can be implemented in the display unit of the mobile terminal and sets first and second image data corresponding to the two brightness levels.
  • the first image data is used to output a binary code value of 0 on a screen of the mobile terminal, which is preferably set as image data corresponding to the lowest level of the bright levels of the display unit.
  • the second image data is used to output a binary code value of 1 on the screen of the mobile terminal, which is preferably set as image data corresponding to the highest level of the brightness levels of the display unit.
  • the payment information converting module 320 reads out the payment information stored in the payment information storage module 300 and coverts the read-out payment information into binary codes.
  • the screen output control module 330 sequentially outputs the binary codes converted by the payment information converting module 320 to a display unit.
  • the screen output control module 330 reads out the bit values of the binary code and outputs image data corresponding to the read-out bit values to all the cells of the display unit. Now, operations of the mobile terminal having the aforementioned construction will be described with reference to FIG. 4.
  • the user receives payment information required for performing payment from an external server or manually inputs the payment information to store and manage the payment information in an internal memory of the mobile terminal in advance (Step 400) .
  • control unit of the mobile terminal sets in advance the first image data (which is output in case of the bit value of 0) and the second image data (which is output in case of the bit value of
  • Step 420 the payment information stored in the memory is read output (Step 420) .
  • the read-out payment information is converted into binary codes (Step 430) .
  • the bit values of the binary code are sequentially read out, and the image data corresponding to the read-out bit values is output to all the cell of the display unit (Step 440)
  • the bit value of 0 the first image data corresponding to the darkest level (the lowest brightness level) is output to the full screen
  • the bit value of 1 the second image data corresponding to the brightest level (the highest brightness level) is output to the full screen.
  • the screen output process proceeds with respect to all the bits sequentially.
  • FIG. 5 exemplifies a screen output state where the second image data is output to the full screen in case of the bit value of 1
  • (b) of FIG. 5 exemplifies a screen output state where the first image data is output to the full screen in case of the bit value of 0.
  • the display unit of the mobile terminal sequentially reads out the bit values of the binary code containing the payment information and outputs the image data corresponding to the one read-out bit value to the full screen in a predetermined time interval.
  • the display unit sequentially performs the outputting process for all the bits. Therefore, in a case where one bit of the binary code containing the payment information has the bit value of 0, the display unit outputs the darkest image, and in a case where on bit of the binary code has the bit value of 1, the display unit outputs the brightest image.
  • the mobile terminal can control the screen output of the display unit, it is possible to transmit the data containing the payment information as an optical signal outwardly.
  • a mobile terminal for transmitting data as an optical signal by using a screen dividing scheme according to another embodiment of the present invention will be described.
  • a screen of the terminal is divided into a plurality of sub screens, and different data is output from the plurality of the sub screens.
  • the construction of the mobile terminal according to the embodiment is the same as that of the aforementioned embodiment, and thus, description thereon is omitted.
  • a screen output control module of the mobile terminal divides the full screen of the mobile terminal into at least two sub screens.
  • the screen output control module also divides the bits of the binary code into bit sequences of which number is equal to the number of the sub screens.
  • the divided sub screens and the divided bit sequences are in one-to-one correspondence.
  • the screen output control module reads out the bit values of the bit sequences of the binary code and outputs image data corresponding to the bit values to the sub screens corresponding to the bit sequences containing the read-out bit values.
  • the process of outputting the image data to the sub screen based on the bit values is the same as that of the above described embodiment.
  • FIG. 6 shows a screen of mobile terminal according to another embodiment for exemplifying a screen output state where a screen of the mobile terminal is divided into four sub screens to transmit data .
  • the full screen of the display unit is divided into a predetermined number of sub screens, and the binary codes containing the payment information are divided to the bit sequences corresponding to the sub screens, so that it is possible to increase the screen output rate for the binary codes. As a result, it is possible to increase the data transmission rate.
  • a mobile terminal can control a screen operation to transmit data containing payment information as an optical signal. Accordingly, by using the mobile terminal and a data transmission method for the mobile terminal, a user can perform payment.

Abstract

A mobile terminal for transmitting data by using a screen control and a method of transmitting data by using a screen control of the mobile terminal are provided. The mobile terminal reads out payment information stored in a memory according to a payment request from a user, converts the read-out payment information into a binary code, sequentially reads out bit values of the binary code, sequentially outputs a predetermined image data to a display unit according to the sequentially read-out bit values, outputs first image data corresponding to darkest brightness to all the cells of the display unit if the bit value constituting the binary code is 0, and outputs second image data corresponding to brightest brightness to all constituting the binary code is 1, thereby transmitting data containing the payment information as an optical signal outwardly. the cells of the display unit if the bit value

Description

MOBILE TERMINAL TRANSMITTING DATA USING BY CONTROLLING
SCREEN AND METHOD FOR TRANSMITTING DATA USING BY
CONTROLLING SCREEN OF THE MOBILE TERMINAL
TECHNICAL FIELD
The present invention relates to a mobile terminal for transmitting data by using a screen control and a method of transmitting data by using a screen control of the mobile terminal, and more particularly to, a mobile terminal for transmitting an optical signal containing data by controlling screen output of a display unit of the mobile terminal in a mobile terminal payment system and a method of transmitting data by using the mobile terminal .
BACKGROUND ART
The inventor of the present invention disclosed mobile phone payment method and system in Korean Patent Application No. 10-2002-25395. In the disclosed invention, as shown in FIG. 1, the mobile phone payment system comprises a mobile phone, an optical receiver, and a control server. The mobile phone transmits an optical signal (containing personal information of a user required to perform payment) to the optical receiver. The optical receiver converts the optical signal transmitted from the mobile phone into an electrical signal and transmits the electrical signal to the control server. The control server performs the payment for the user by using the electrical signal transmitted from the optical signal.
The mobile phone stores the personal information of the user (required to perform the payment) in an internal memory. In response to the user's request, the mobile phone reads out the personal information from the internal memory and converts the personal information into binary information. In accordance with the binary information, a backlight built in the mobile phone operates to drive an LCD screen. By turning on and off the backlight, a predetermined optical signal is generated and transmitted.
As shown in FIG. 2, the optical receiver comprises an optical sensor for receiving the optical signal (generated by turning on and off the backlight of the mobile phone) , converting the received optical signal into an electrical signal, and transmitting the electrical signal to a control unit of the optical receiver. The control unit of the optical receiver comprises a data check unit for determining whether or not there is an error in the electrical signal and an encrypting unit for encrypting the electrical signal if there is no error in the electrical signal. Next, the control unit transmits the non-error electrical signal.
On the other hand, organic light emitting diodes or devices, self luminous devices, have been recently developed. Since the organic light emitting devices are self luminous devices, the organic light emitting devices have a good viewing characteristic in a dark place or in a highly bright place illuminated by external light. Unlike a LCD apparatus, a backlight is unnecessary, so that the weight of the organic light emitting devices can be reduced down to 1/3 of the TFT LCD apparatus. In addition, since the response rate is higher than 1000 times of the response rate of the TFT LCD apparatus, movi.ng picture can be implemented without latent image. Therefore, the organic light emitting diodes has been spotlighted as a next generation display device for mobile terminals.
On the other hand, in the aforementioned mobile phone payment system, the backlight of the LCD is turned on and off to transmit the data as an optical signal. There is a problem in that the aforementioned mobile phone payment system cannot be applied to a mobile terminal using the organic or inorganic light emitting diode without a backlight. DETAILED DESCRIPTION OF THE INVENTION Technical Goal of the Invention
In order to solve the aforementioned problems, an object of the present invention is to provide a mobile terminal for transmitting data as an optical signal by controlling a screen operation to be used for a mobile phone payment system.
Another object of the present invention is to provide a method of transmitting data as an optical signal in a mobile terminal having no backlight such as an organic or inorganic light emitting device.
Still another object of the present invention is to provide a mobile terminal for transmitting data as an optical signal by controlling a screen, wherein the screen is divided into a plurality of sub screens, thereby increasing a data transmission rate. Disclosure of the Invention
In order to achieve the aforementioned objects, according to an aspect of the present invention, there is provided a mobile terminal for transmitting data by using a screen control, comprising a memory, a display unit, and a control unit for controlling an overall operation of the mobile terminal, wherein the control unit comprises: a payment information storage module for storing payment information used to perform payment of a user in the memory; a brightness level setting module for selecting two levels from brightness levels of the display unit and setting predetermined brightness levels to first and second image data corresponding to the two selected levels; a payment information converting module for reading out the payment information stored in the memory by the payment information storage module and converting the read-out payment information into a binary code; and a screen output controlling module for sequentially reading out bit values of the binary code converted by the payment information converting module in response to a user's payment request and sequentially outputting predetermined image data to the display unit in accordance with the sequentially read-out bit values, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit, and wherein the display unit of the mobile terminal sequentially outputs the data transmitted from the control unit to the entire screen of the display unit, thereby outputting an optical signal of the data containing the payment information. According to an aspect of the present invention, there is provided a mobile terminal for transmitting data by using a screen control, comprising a memory, a display unit, and a control unit for controlling an overall operation of the mobile terminal, wherein the control unit comprises: a payment information storage module for storing payment information used to perform payment of a user in the memory; a brightness level setting module for selecting two levels from brightness levels of the display unit and setting predetermined brightness levels to first and second image data corresponding to the two selected levels; a payment information converting module for reading out the payment information stored in the memory by the payment information storage module and converting the read-out payment information into a binary code; and a screen output controlling module for sequentially reading out bit values of the binary code converted by the payment information converting module in response to a user's payment request, dividing the bit values of the binary code into at least one bit sequence, dividing a screen of the display unit into sub screens, forming one to one correspondence between the bit sequences and the sub screens, and sequentially outputting image data corresponding to the bit values of the bit sequences to corresponding the sub screens, wherein the number of sub screens is equal to the number of the bit sequences, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit, and wherein the display unit of the mobile terminal sequentially outputs the data transmitted from the control unit to the entire screen of the display unit, thereby outputting an optical signal of the data containing the payment information.
In the aforementioned aspects of the present invention, the first image data may correspond to a lowest level of the brightness levels of the display unit, and the second image data may correspond to a highest level of the brightness levels of the display unit .
In addition, the display unit of the mobile terminal may be constructed with organic or inorganic light emitting devices. According to still another aspect of the present invention, there is provided a method of transmitting data by using a screen control of a mobile terminal, the method comprising steps of: storing payment information in an internal memory of the mobile terminal and managing the stored payment information in advance; setting first and second image data to be output in accordance with bit values of 0 and 1, respectively; reading out the stored payment information from the memory in response to a user's payment request and converting the read-out payment information into a binary code; and sequentially reading out bit values of the binary code and sequentially outputting image data to the display unit in accordance with the sequentially read-out bit values, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit.
According to further still another aspect of the present invention, there is provided a method of transmitting an optical signal of data containing payment information by using a screen control of a mobile terminal, the method comprising steps of: storing payment information in an internal memory of the mobile terminal and managing the stored payment information in advance; setting first and second image data to be output in accordance with bit values of 0 and 1, respectively; reading out the stored payment information from the memory in response to a user's payment request and converting the read-out payment information into a binary code; and dividing the bit values of the binary code into at least one bit sequence, dividing a screen of the display unit into sub screens, and forming one to one correspondence between the bit sequences and the sub screens, wherein the number of sub screens is equal to the number of the bit sequences; and sequentially outputting image data corresponding to the bit values of the bit sequences to the corresponding sub screens, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit, and wherein different data are transmitted to the different sub screens of the mobile terminal, thereby improving transmission rate of the data.
Effect of the Invention
According to the present invention, without additional hardware to a mobile terminal and without using an external wireless network, a mobile terminal can transmit data containing payment information as an optical signal. Therefore, without addition hardware to the mobile terminal, by simply downloading a program, the terminal can perform payment. As a result, the payment service can be provided without increase in cost In addition, by transmitting data as an optical signal using a screen dividing scheme, it is possible to increase a data transmission rate of a mobile terminal.
In addition, by applying a method according to the present invention to a mobile terminal constructed with an organic or inorganic light emitting diode, it is possible to further increase the data transmission rate of the mobile terminal.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a block diagram showing an overall construction of a conventional mobile phone payment system.
FIG. 2 is a waveform view of a signal transmitted from a mobile phone to an optical receiver in the mobile phone payment system of FIG. 1.
FIG. 3 is a schematic block diagram showing a control unit of a mobile terminal according to the present invention. FIG. 4 is a flowchart for sequentially explaining operations of the mobile terminal according to the present invention.
FIG. 5 shows screens of a mobile terminal according to the preferred embodiment of the present invention for exemplifying screen output states where a bit value is 1 and where a bit value is 0.
FIG. 6 shows a screen of mobile terminal according to another embodiment for exemplifying a screen output state where a screen of the mobile terminal is divided into four sub screens to transmit data.
BEST MODE FOR CARRYING OUT THE INVENTION Now, constructions and operations of a mobile terminal for transmitting data by using a screen control according to preferred embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 3 is a schematic block diagram showing a control unit of a mobile terminal according to a preferred embodiment of the present invention. FIG. 4 is a flowchart for sequentially explaining operations of the mobile terminal according to the present invention. Referring to FIG. 3, the control unit of the mobile terminal according to the preferred embodiment comprises a payment information storage module 300, a brightness level setting module 310, a payment information converting module 320, and a screen output control module 340.
The payment information storage module 300 receives payment-related information required to perform payment of a user from an external server and stores the payment-related information in an internal memory of the mobile terminal. Here, the payment-related information may include, for example, a credit card number and an expired data in a case where the system according to the present invention is applied to a credit card payment. Depending on payment service types to which the payment system according to the present invention is applied, the payment-related information stored in the mobile terminal may be modified in various manners.
The brightness level setting module 310 selects two levels of brightness levels which can be implemented in the display unit of the mobile terminal and sets first and second image data corresponding to the two brightness levels. Here, the first image data is used to output a binary code value of 0 on a screen of the mobile terminal, which is preferably set as image data corresponding to the lowest level of the bright levels of the display unit. The second image data is used to output a binary code value of 1 on the screen of the mobile terminal, which is preferably set as image data corresponding to the highest level of the brightness levels of the display unit.
The payment information converting module 320 reads out the payment information stored in the payment information storage module 300 and coverts the read-out payment information into binary codes.
The screen output control module 330 sequentially outputs the binary codes converted by the payment information converting module 320 to a display unit.
The screen output control module 330 reads out the bit values of the binary code and outputs image data corresponding to the read-out bit values to all the cells of the display unit. Now, operations of the mobile terminal having the aforementioned construction will be described with reference to FIG. 4.
Firstly, the user receives payment information required for performing payment from an external server or manually inputs the payment information to store and manage the payment information in an internal memory of the mobile terminal in advance (Step 400) .
In addition, the control unit of the mobile terminal sets in advance the first image data (which is output in case of the bit value of 0) and the second image data (which is output in case of the bit value of
1) (Step 410) .
Next, when there is a payment request of the user, the payment information stored in the memory is read output (Step 420) . The read-out payment information is converted into binary codes (Step 430) . Next, the bit values of the binary code are sequentially read out, and the image data corresponding to the read-out bit values is output to all the cell of the display unit (Step 440) Here, in case of the bit value of 0, the first image data corresponding to the darkest level (the lowest brightness level) is output to the full screen, and in case of the bit value of 1, the second image data corresponding to the brightest level (the highest brightness level) is output to the full screen. The screen output process proceeds with respect to all the bits sequentially. (a) of FIG. 5 exemplifies a screen output state where the second image data is output to the full screen in case of the bit value of 1, and (b) of FIG. 5 exemplifies a screen output state where the first image data is output to the full screen in case of the bit value of 0.
As a result, the display unit of the mobile terminal sequentially reads out the bit values of the binary code containing the payment information and outputs the image data corresponding to the one read-out bit value to the full screen in a predetermined time interval. The display unit sequentially performs the outputting process for all the bits. Therefore, in a case where one bit of the binary code containing the payment information has the bit value of 0, the display unit outputs the darkest image, and in a case where on bit of the binary code has the bit value of 1, the display unit outputs the brightest image. Like this, since the mobile terminal can control the screen output of the display unit, it is possible to transmit the data containing the payment information as an optical signal outwardly.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. The exemplary embodiments should be considered in descriptive sense only and not for purposes of limitation. For example, in the embodiment of the present invention, the number of sub screens divided from the full screen of the display unit, the brightness level setting method for the bit values, and or the like may be modified in various manners in order to increase the optical signal transmission rate of the mobile terminal and improve a signal sensing capability of an optical signal receiver. Therefore, the scope of the invention is defined not by the detailed description of the invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention.
[Embodiments]
Now, a mobile terminal for transmitting data as an optical signal by using a screen dividing scheme according to another embodiment of the present invention will be described. In the embodiment, a screen of the terminal is divided into a plurality of sub screens, and different data is output from the plurality of the sub screens. As a result, it is possible to increase data transmission rate. The construction of the mobile terminal according to the embodiment is the same as that of the aforementioned embodiment, and thus, description thereon is omitted.
A screen output control module of the mobile terminal according to the embodiment divides the full screen of the mobile terminal into at least two sub screens. In addition, the screen output control module also divides the bits of the binary code into bit sequences of which number is equal to the number of the sub screens. Next, the divided sub screens and the divided bit sequences are in one-to-one correspondence. Next, the screen output control module reads out the bit values of the bit sequences of the binary code and outputs image data corresponding to the bit values to the sub screens corresponding to the bit sequences containing the read-out bit values. Here, the process of outputting the image data to the sub screen based on the bit values is the same as that of the above described embodiment.
Here, it is preferable that the screen of the display unit is divided into 2 or 4 sub screens. Since all the bit values of the bit sequences are output to the sub screens corresponding to the bit sequences, it is possible to increase the screen output rate for the binary code by two or four times. FIG. 6 shows a screen of mobile terminal according to another embodiment for exemplifying a screen output state where a screen of the mobile terminal is divided into four sub screens to transmit data .
According to the embodiment, the full screen of the display unit is divided into a predetermined number of sub screens, and the binary codes containing the payment information are divided to the bit sequences corresponding to the sub screens, so that it is possible to increase the screen output rate for the binary codes. As a result, it is possible to increase the data transmission rate. INDUSTRIAL APPLICABILITY
According to the present invention, a mobile terminal can control a screen operation to transmit data containing payment information as an optical signal. Accordingly, by using the mobile terminal and a data transmission method for the mobile terminal, a user can perform payment.

Claims

CLAI MS
1. A mobile terminal for transmitting data by using a screen control, comprising a memory, a display unit, and a control unit for controlling an overall operation of the mobile terminal, wherein the control unit comprises: a payment information storage module for storing payment information used to perform payment of a user in the memory; a brightness level setting module for selecting two levels from brightness levels of the display unit and setting predetermined brightness levels to first and second image data corresponding to the two selected levels; a payment information converting module for reading out the payment information stored in the memory by the payment information storage module and converting the read-out payment information into a binary code; and a screen output controlling module for sequentially reading out bit values of the binary code converted by the payment information converting module in response to a user's payment request and sequentially outputting predetermined image data to the display unit in accordance with the sequentially read-out bit values, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit, and wherein the display unit of the mobile terminal sequentially outputs the data transmitted from the control unit to the entire screen of the display unit, thereby outputting an optical signal of the data containing the payment information.
2. A mobile terminal for transmitting data by using a screen control, comprising a memory, a display unit, and a control unit for controlling an overall operation of the mobile terminal, wherein the control unit comprises: a payment information storage module for storing payment information used to perform payment of a user in the memory; a brightness level setting module for selecting two levels from brightness levels of the display unit and setting predetermined brightness levels to first and second image data corresponding to the two selected levels; a payment information converting module for reading out the payment information stored in the memory by the payment information storage module and converting the read-out payment information into a binary code; and a screen output controlling module for sequentially reading out bit values of the binary code converted by the payment information converting module in response to a user's payment request, dividing the bit values of the binary code into at least one bit sequence, dividing a screen of the display unit into sub screens, forming one to one correspondence between the bit sequences and the sub screens, and sequentially outputting image data corresponding to the bit values of the bit sequences to corresponding the sub screens, wherein the number of sub screens is equal to the number of the bit sequences, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit, and wherein the display unit of the mobile terminal sequentially outputs the data transmitted from the control unit to the entire screen of the display unit, thereby outputting an optical signal of the data containing the payment information.
3. The mobile terminal according to claim 1 or 2, wherein the first image data corresponds to a lowest level of the brightness levels of the display unit, and wherein the second image data corresponds to a highest level of the brightness levels of the display unit .
4. The mobile terminal according to claim 1 or 2, wherein the display unit of the mobile terminal is constructed with organic or inorganic light emitting devices .
5. A method of transmitting data by using a screen control of a mobile terminal, the method comprising steps of: storing payment information in an internal memory of the mobile terminal and managing the stored payment information in advance; setting first and second image data to be output in accordance with bit values of 0 and 1, respectively; reading out the stored payment information from the memory in response to a user's payment request and converting the read-out payment information into a binary code; and sequentially reading out bit values of the binary code and sequentially outputting image data to the display unit in accordance with the sequentially read¬ out bit values, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit.
6. A method of transmitting an optical signal of data containing payment information by using a screen control of a mobile terminal, the method comprising steps of: storing payment information in an internal memory of the mobile terminal and managing the stored payment information in advance; setting first and second image data to be output in accordance with bit values of 0 and 1, respectively; reading out the stored payment information from the memory in response to a user's payment request and converting the read-out payment information into a binary code; and dividing the bit values of the binary code into at least one bit sequence, dividing a screen of the display unit into sub screens, and forming one to one correspondence between the bit sequences and the sub screens, wherein the number of sub screens is equal to the number of the bit sequences; and sequentially outputting image data corresponding to the bit values of the bit sequences to the corresponding sub screens, wherein if the bit value of the binary code is 0, the first image data is output to all cells of the display unit, wherein if the bit value of the binary code is 1, the second image data is output to all cells of the display unit, and wherein different data are transmitted to the different sub screens of the mobile terminal, thereby improving transmission rate of the data.
7. The method according to claim 5 or 6, wherein the first image data corresponds to a lowest level of the brightness levels of the display unit, and wherein the second image data corresponds to a highest level of the brightness levels of the display unit.
PCT/KR2004/002372 2004-09-06 2004-09-16 Mobile terminal transmitting data using by controlling screen and method for transmitting data using by controlling screen of the mobile terminal WO2006028309A1 (en)

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