Abstract:
PURPOSE: A method for transmitting hierarchical SVC(Scalable Video Coding) data through network coding, a device thereof, a receiving method, and a device thereof are provided to improve a decoding success rate of base layer data having the highest significance when the hierarchical SVC data is transmitted. CONSTITUTION: A data transmission device receives hierarchical SVC data from a source node(610). The data transmission device decodes the hierarchical SVC data and performs network coding of the decoded hierarchical SVC data while differentiating a data inclusion frequency corresponding to significance(620). The data transmission device transmits the hierarchical SVC data to a destination node(630). [Reference numerals] (610) Receive hierarchical SVC video data from a source node; (620) Decode the hierarchical SVC video data while differentiating a data inclusion frequency corresponding to significance and network-code; (630) Transmit the network-coded data to a destination node; (AA) Start; (BB) End
Abstract:
PURPOSE: An SVC(Scalable Video Coding) video data transmission method based on layer selection of a network having errors and a device thereof are provided to determine a level of a layer which is transmitted corresponding to an optimized layer path of the network, thereby not transmitting layers which are not used for image recovery of the final resolution. CONSTITUTION: An SVC video data transmission device generates a layer path having optimized efficiency based on a bit rate and PSNR(Peak Signal-to-Noise)(S110). The SVC video data transmission device determines a transmission layer level based on the layer path and a channel situation(S130). The SVC video data transmission device transmits a layer corresponding to the transmission layer level(S150). A transmission object layer is determined by considering dependency with the transmission layer level when the layer is transmitted. [Reference numerals] (AA) Start; (BB) End; (S110) Generate a layer; (S130) Determine a transmission layer level; (S150) Transmit the layer
Abstract:
본 발명은 원형저장공간을 이용한 음조변환방법에 관한 것으로, 입력된 음성신호의 주파수를 M/N배 만큼 변환하여 출력하는 원형저장공간을 이용한 음조변환방법에 있어서, 입력된 음성신호의 데이터가 N개씩 복사되어 입력데이터 포인터의 주소가 초기 지정된 셀부터 N개의 셀에 각각 저장되며, 상기 입력데이터 포인터의 주소는 상기 원형저장공간 내에서 다음 N번째 주소로 변경되는 단계, 및 출력데이터 포인터의 주소가 지정하는 셀에 저장된 데이터가 출력되고, 상기 출력데이터 포인터의 주소는 상기 원형저장공간 내에서 다음 M번째 주소로 변경되는 단계를 반복적으로 포함한다. 본 발명에 따르면, 원형저장공간을 이용한 음조변환방법은 일반적인 마이크로 프로세서를 사용하며, 부가적인 부품이나 프로세서 작업이 필요하지 않으며, 이용되는 메모리 용량과 프로세서 양이 적기 때문에 저사양의 기기로도 음조변환을 할 수 있는 효과가 있다. 음조, 원형저장공간(circular buffer), 입력데이터 포인터, 출력데이터 포인터
Abstract:
PURPOSE: A cell determination method in overlapping network for easily expanding PCI(Physical Cell ID) within a macro cell is provided to determine whether a cell including a mobile terminal is a macro cell or a femto cell through an allocated PCI. CONSTITUTION: If a confirmed PCI is not included in a femto BS(Base Station) PCI range, a mobile terminal confirms a second femto PCI range through BS information in a searched cell(640, 650). If the confirmed PCI is not included in the second femto base station PCI range, the mobile terminal determines the detected cell as a macro cell which a macro BS manages. If the confirmed PCI is included in the second femto base station PCI range, the mobile terminal determines the detected cell as the femto cell.
Abstract:
PURPOSE: A mobile device for offering a function of an input interface and a short distance wireless communication method using the same are provided to control a wireless mouse function and a wireless keyboard function selectively. CONSTITUTION: A data input unit(130) includes a touch screen, and comprises an input mode conversion key for converting the information inputted on the touch screen into a pointer information or text information. In addition, the data input unit contains a data input region for receiving the pointer information or text information synchronized to the device information of a reception device when an input mode is selected as the input mode conversion key. A data processing unit(140) generates identification corresponding to the selected input mode.