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| 20080273811 | Image Processing Method and Apparatus - Disclosed is an edge sharpening method using maximum and minimum filters. In an embodiment of the present invention, the edge region of an input image signal is detected, minimum and maximum signals are generated for the detected edge region, the input signal of the detected edge region is compared with the average signal of the minimum and maximum signals, and the average of the input signal and the maximum signal is output if the input signal is larger than the average signal, the average of the input signal and the minimum signal is output if the input signal is smaller than the average signal, and the input signal is output if the input signal is equal to the average signal. Meanwhile, median filtering, using a window perpendicular to the direction in which the edge sharpening is performed, is performed on the region on which the edge sharpening has been performed. | 11-06-2008 |
| 20080309831 | Video Signal Processing Method and Apparatus - Disclosed herein is a video signal processing method and apparatus. In an embodiment of the present invention, video having a second screen size is generated from input video having a first screen size through Wavelet/Bicubic video interpolation, and a parallel Projection Onto Convex Sets (POCS) method is applied to the generated video having the second screen size. In this embodiment, the video having the second screen size, which is generated through Wavelet/Bicubic video interpolation, is used as an initial value for the POCS method, and a motion component estimated based on the video having the first screen size and the video having the second screen size obtained through the use of the POCS method is used as a correction value for the POCS method. Accordingly, HD-class video can be rapidly produced from SD-class video without image degradation. | 12-18-2008 |
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| 20080249948 | FINANCIAL INFORMATION INPUT METHOD USING SYMMETRICAL KEY SECURITY ALGORITHM AND COMMERCIAL TRANSACTION SYSTEM FOR MOBILE COMMUNICATIONS - A financial information input method using a symmetric key security algorithm and a mobile communications commercial transaction system using the same encrypts financial information such as a customer's identification number and a valid date with a symmetric key algorithm by use of an electronic wallet administration number of a customer's terminal used as an encryption key at the time of applying an issuance of a card, and directly inputs the encrypted financial information into a customer's electronic wallet terminal or inputs the same via a communications network. In the case that a commercial transaction settlement is accomplished with a mobile communications terminal in which the encrypted financial information is stored, his or her own electronic wallet administration number is input so that the encrypted financial information and the administration number are optically transmitted to a POS terminal/card inquiry machine of an affiliated shop. The POS terminal/card inquiry machine which has received the encrypted financial information and administration number uses the received electronic wallet administration number and decodes the encrypted financial information with the administration number. Thus, although an unauthorized person knows an encryption algorithm unless a customer's electronic wallet administration number is exposed illegally, customer's financial information cannot be used. That is, an effect of fundamentally preventing customer's financial information from being illegally copied can be provided. | 10-09-2008 |
| 20090098854 | Method of providing billing and payment service using settlement service function of mobile electronic wallet and system therefor - Provided is a method of providing a billing and payment service using a settlement service function of a mobile electronic wallet, and a system therefor, which enables companies to charge customers for rates through their mobile devices, respectively, and enables the customers to directly pay for the rates using a settlement service function of a mobile electronic wallet without exposing banking information to a rate receipt institution on a regularly monthly basis. A rate guidance message is sent to a customer using a short message service (SMS) that is a wireless communication network service of a mobile device. If the customer confirms the guidance message, the mobile device automatically gains access to the rate demand company by call back URL or TCP/IP communication. Then, after undergoing a simple authentication procedure for confirming whether or not the access person is a true person, a rate bill including payment particulars is displayed on a screen of the mobile device. If the customer confirms the rate bill and intends to pay for the rate bill, the customer directly settles the payment using a settlement service function (e.g. credit card or account transfer of an electronic wallet of the mobile device. Thus, without exposing customer's settlement information such as account number and card number, the rate can be paid according to the customer's payment intent, to thereby reduce pressure by banking information exposure, and reduce congestion due to visit of banks using an electronic wallet settlement service function of the mobile device. A payment priority ranking order can be determined within a customer's allowable capital extent, and payment tools such as transfer account and credit card are diversified, to thereby prevent a payment delay due to lack of deposit money and enhance a rate receipt efficiency of the rate demand company. | 04-16-2009 |
| 20090115759 | METHOD AND APPARATUS FOR DRIVING PLASMA DISPLAY PANEL - The present invention relates to a plasma display panel, and more specifically, a method and an apparatus for driving a plasma display panel. According to the present invention, a method for driving a plasma display panel in which pluralities of first electrodes and second electrodes are arranged parallel and to each other adjacently on an upper substrate, a plurality of third electrodes is arranged to cross the pairs of first and second electrodes at electrode crossing areas and define corresponding discharge cells at the electrode crossing areas on an lower substrate, wherein said method for driving a plasma display panel comprises steps of: forming wall charges on the upper and lower substrate by applying first rising ramp waveform to said first electrodes during a first period of a reset period; erasing partly the wall charges which are formed on the upper substrate by applying second rising ramp waveform to said second electrodes during a second period of a reset period; erasing partly the wall charges which are formed on the upper and lower substrates by applying falling ramp waveform to said first and second electrodes during a third period of a reset period; selecting the discharge cells by applying data voltage to said third electrodes and applying scan voltage to said first electrodes during a address period; and displaying an image on screen by applying sustain voltage to said first and second electrodes alternatively during a sustain period. | 05-07-2009 |
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| 20080214240 | METHOD AND APPARATUS FOR CONNECTING EMERGENCY CALL IN PORTABLE TERMINAL - A method and apparatus for connection an emergency call in a dual mode portable terminal supporting both a cellular network and an unlicensed-band network using an unlicensed Industrial, Science, and Medical (ISM) frequency band (e.g., WiFi, Bluetooth, UWB, etc.) are provided. The method includes if an emergency call connection event occurs, searching for an accessible network and checking an insertion state of a SIM card; if the unlicensed-band network is accessible and the SIM card is not inserted, performing an IP-based Multimedia Subsystem (IMS) registration process by using information pre-stored in a memory; and connecting the emergency call through the unlicensed-band network. | 09-04-2008 |
| 20110150107 | APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION IN PORTABLE TERMINAL - An apparatus and a method for reducing power consumption in a portable terminal that transmits digital broadcast data through an ad hoc network are provided. If a terminal receiving digital broadcast transmits the received digital broadcast to a neighboring terminal, a control unit enters a sleep mode after buffering received data for a predefined time. | 06-23-2011 |
| 20110161700 | APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION OF ACCESS POINT FUNCTION IN PORTABLE TERMINAL - An apparatus and a method for operating as a virtual terminal to participate in competition for medium access while a mobile terminal operates as an access point are provided. In a case where the mobile terminal accesses a medium while competing with a terminal that transmits data of low priority, an apparatus and a method for entering a low power mode to resolve a power consumption problem of the mobile terminal are provided. The apparatus includes a medium competing unit, which allows the mobile terminal to operate as a virtual terminal and participate in competition for a medium access when data to be transmitted does not exist in the mobile terminal operating as an Access Point (AP). | 06-30-2011 |
| 20110280233 | WI-FI SERVICE METHOD AND SYSTEM FOR WI-FI DEVICES - A Wireless-Fidelity (Wi-Fi) service method and system are provided. A beacon message and probe response message may contain a service information field storing device information. Wi-Fi devices can exchange information on supported functions with each other and one Wi-Fi device may identify functions supported by another Wi-Fi device. Hence, a Wi-Fi connection can be set up through automatic provisioning. The method includes receiving, by a first Wi-Fi device in non-Access Point (AP) mode, messages from nearby Wi-Fi devices operating in AP mode, analyzing a service information field of each received message, determining a second Wi-Fi device that is manufactured by the same manufacturer as the first Wi-Fi device and is capable of supporting a requested service, establishing a connection with the second Wi-Fi device through Wi-Fi Protected Setup (WPS) based on automatic provision, and sending data associated with the requested service to the second Wi-Fi device for a Wi-Fi service. | 11-17-2011 |
| 20110281556 | SYSTEM OF WI-FI TERMINALS AND CHANNEL OPERATION METHOD FOR THE SAME - A system of Wi-Fi terminals and a channel operation method for the same are provided. The method includes selecting a user function of a sending terminal including a Wi-Fi module, determining whether the selected user function is a Wi-Fi related function, performing, when the selected user function is the Wi-Fi related function, by the sending terminal, a search for a terminal capable of handling the user function, selecting, by the sending terminal, a found terminal as a receiving terminal, automatically establishing, by the sending terminal, a Wi-Fi channel to the receiving terminal by automatically sending a Probe Request message containing a Personal Identification Number (PIN) code, sending, by the sending terminal, data generated by the user function to the receiving terminal through the Wi-Fi channel, and outputting, by the receiving terminal, the received data. | 11-17-2011 |
| 20110281557 | METHOD AND SYSTEM FOR PROVIDING WI-FI SERVICE BY WI-FI DEVICE - A method and a system for providing a Wireless Fidelity (Wi-Fi) service, in which when multiple counterpart devices are selected based on manufacturer information and support information on supported functions and capability defined in a service information field of each beacon message or each probe response message, a final device is determined by checking multiple pieces of signal information of the selected counterpart devices, are provided. The method includes receiving messages from multiple counterpart devices, selecting one or more counterpart devices, each of which supports a requested service, from an identical manufacturer when the messages are received, checking multiple pieces of signal information of the selected counterpart devices when the number of the selected counterpart devices is greater than one, and determining a device having the signal information satisfying set conditions as a final device. | 11-17-2011 |
| 20110283001 | TETHERING METHOD AND MOBILE DEVICE ADAPTED THERETO - A mobile device and a method for providing a tethering service via a security mode and a list of preferred mobile devices are provided. The method includes determining, when the mobile device receives a connection request from a client mobile device, a number of client mobile devices that are currently connected to the mobile device, determining, when the number of connected client mobile devices is less than a preset maximum connection number, the number of created Basic Service Sets (BSSs), determining, when the number of BSSs is less than a preset maximum creation number, the identification-information regarding the client mobile device that requested connection, and providing a tethering service to the client mobile device according to the determined identification-information. | 11-17-2011 |
