Abstract:
An operation method of a data processing system includes the following steps: partially compressing uncompressed data while determining whether to compress the remaining part of the data; and transmitting the entire uncompressed data to an external memory device based on the result of the determination. The determination step includes the following steps: compressing part of the data using an initial compression algorithm among one or more compression algorithms; and comparing the size of the compressed data and the estimated data size for the other part of the data and determining whether to compress the remaining part of the data based on the comparison result.
Abstract:
A method of transmitting a content reply packet from a content owner in content-centric networking (CCN) includes determining a caching capability value threshold (CCVth) for determining a candidate node for caching a content based on a policy of the content owner, and transmitting a content reply packet including the content and the CCVth in response to a content request packet from a content requester.
Abstract:
본 발명은 메시 네트워크의 외부 네트워크와 상기 메시 네트워크의 내부의 다수의 메시 포인트들 간의 통신 인터페이스를 제공하는 다수의 메시 포탈들을 포함하는 상기 메시 네트워크에서 상기 다수의 메시 포인트들이 각각 상기 다수의 메시 포탈들 각각으로부터 제1브로드캐스트 데이터프레임을 수신하면, 상기 수신한 제1브로드캐스트 데이터프레임의 목적지 주소와 기 등록된 메시 포탈의 주소를 비교하고, 상기 수신한 제1브로드캐스트 데이터프레임의 목적지 주소와 상기 기 등록된 메시 포탈의 주소가 동일한 경우, 상기 수신한 제1브로드캐스트 데이터프레임을 브로드캐스팅하고, 상기 수신한 제1브로드캐스트 데이터프레임의 목적지 주소와 상기 기 등록된 메시 포탈의 주소가 다른 경우, 상기 수신한 제1브로드캐스트 데이터프레임을 폐기한다. 무선 메시 네트워크, 801.11s, 브로드캐스트 데이터프레임, 메시 포탈, 메시 포인트
Abstract:
본 발명은 무선 랜(WLAN: Wireless Local Area Network) 메쉬(Mesh) 통신 시스템에서 비콘(beacon) 메시지를 송수신하기 위한 스케쥴링 방법 및 장치에 관한 것으로, 다수의 메쉬 억세스 포인트들 중에서 제1메쉬 억세스 포인트가 자신과 인접한 메쉬 억세스 포인트들로 송신할 메시지가 발생되면, 미리 지정된 주기에서 상기 발생된 메시지를 송신하는 제1구간을 설정하고, 상기 미리 지정된의 주기에서 상기 설정된 제1구간을 제외한 나머지 구간을 상기 인접한 메쉬 억세스 포인트들로부터 메시지를 수신하는 제2구간으로 설정함을 특징으로 한다. 무선 랜(WLAN: Wireless Local Area Network) 메쉬(Mesh), 비콘(beacon), 스케쥴링, 메쉬 포인트(MP: Mesh Point), 억세스 포인트(AP: Access Point)
Abstract:
PURPOSE: A sequential content transmission method of a content transmission device in a content centric network, a sequential content receiving method of a content receiving device, the content transmission device, and the content receiving device are provided to transmit sequential content with a push method, thereby reducing a network load and inefficiency of transmission. CONSTITUTION: One or more sequential content are prepared(201). A content transmission device transmits one or more push request messages to one or more content receiving devices(203). The content transmission device receives one or more content request messages from one or more content receiving devices(205). The content transmission device transmits one or more sequential content to one or more content receiving devices(207). [Reference numerals] (201) Preparing one or more sequential content; (203) Transmitting one or more push request messages; (205) Receiving one or more content request messages; (207) Transmitting one or more sequential content; (209) Receiving a response message; (AA) Start; (BB) End
Abstract:
PURPOSE: A content requester on content core network, a center node, and a communication method of a content owner are provided to store content in an optimum location on a path which content is transmitted by a content request packet. CONSTITUTION: A content requester generates a content request packet(210). The content request packet includes a cache token which is used for designating a center node which stores the content to be requested. The content requester initializes a value of the cache token(220). The content requester transmits the content request packet to the content owner(230). [Reference numerals] (210) Generating a content request packet; (220) Initializing a value of a cache token; (230) Transmitting a content request packet; (AA) Start; (BB) End
Abstract:
PURPOSE: A remote playing method and a system thereof through a communication network are provided to perform ensemble without restriction of a place. CONSTITUTION: Terminals(10-1-10-n) generate a MIDI(Musical Instrument Digital Interface) signal according to input of a performance signal. The terminals transmit the MIDI signal to a server(100). The server transmits the received MIDI signal to all terminals. The terminals output the received MIDI signal through a corresponding sound source.
Abstract:
PURPOSE: An advanced microcontroller bus architecture system is provided to automatically control a slave to transmit a clock signal only during an interval when data is transmitted, thereby reducing unnecessary power consumption. CONSTITUTION: An AMBA(Advanced Microcontroller Bus Architecture) system(300) transmits data between a master(310) and a slave(330). The AMBA system includes an AHB(Advanced High-performance system Bus) bus matrix(350) and a clock control unit(370). The AHB but matrix transmits data between a master and a slave. The clock control unit responds to AHB signals outputted from the master. The clock control unit outputs a clock signal during an interval when the data is transmitted. The slave operates in response to the clock signal outputted from the clock control unit.
Abstract:
An apparatus and a method for saving power by using location information are provided to perform mode conversion by using location information provided from an LBS(Location Based Service) server, thereby reducing waste of power of a mobile terminal. An apparatus for saving power by using location information comprises a transceiver(110) and a controller(120). The transceiver receives location information set from a base station storing the location information set. By using the location information set, the controller receives the location information set from the transceiver and activates one mode out of plural modes of which power consumptions are different from each other. The plural modes include a sleep mode and an active mode.