Abstract:
호스트 장치와 저장 장치가 연계하여 중복 제거 프로세스를 수행하는 방법 및 스토리지 시스템이 개시된다. 일 양상에 따른 적어도 하나 이상의 저장 장치와 연계하여 중복 제거 프로세스를 수행하는 호스트 장치는, 저장하고자 하는 데이터의 해시값(hash value)을 기반으로 데이터의 중복 여부를 검사하는 간략 검사부와, 검사 결과에 따라, 데이터 중복 정밀 검사 요청 또는 데이터 저장 요청과 함께 저장하고자 하는 데이터를 저장 장치로 송신하는 데이터 송신부를 포함할 수 있다.
Abstract:
There is provided an information storage apparatus including a recording medium and a head. The recording medium (50) has an electrode layer (57), a magnetic layer (55) that is stacked on the electrode layer, and a wear-resistant thin film (53) that is stacked on the magnetic layer. The head (60) has a conductive probe (51) for injecting charge to record information and sensing the charge injected into the recording medium to reproduce information in a state that the conductive probe contacts the recording medium. A magnetic medium, which is coated with a wear-resistant thin film, stores charges to record information and reproduce information using an electrostatic force. Thus, it is possible to stably store highly integrated information. Also, a probe contacts a recording medium to record and reproduce information at a high speed. Thus, sensitivity and resolution can be improved.
Abstract:
A data recording/reproducing method, a data recording system adopting the same, and media for the system are provided. The method includes the steps of preparing media (20) having a data recording layer in which a phase change is generated through electron absorption, generating electrons using an electron generating source (40) according to data for recording at a position separated from the data recording layer by a predetermined interval, forming a magnetic field (NS) on the path of the electrons and cyclotron (50) moving the electrons, and transmitting the cyclotron moved electrons onto the data recording layer to record data through local melting and cooling due to the absorption of the electrons by the data recording layer. The micro-tip (11) does not contact the data recording layer while the electron beam collides with the data recording layer, and thus no damage is caused by waste of the micro-tip, as with a conventional AFM method, and data recording and reproduction is very fast. In addition, the electron beam is converged onto the data recording layer through cyclotron movement, and thus the region (22a) where the electron beam reaches can be minimized by properly adjusting the distance, to maximize the data recording density.
Abstract:
PURPOSE: An apparatus and a method for playing information using capacitance change are provided to reproduce information by sensing increase and decrease in capacitance from electrostatic force, thereby simplifying a structure of the apparatus and reducing the manufacturing cost. CONSTITUTION: A tip supported by a free end of a conductive cantilever is contacted to a predetermined position of a recording medium(S10). Electrostatic force is generated by applying voltage to the tip and the recording medium(S20). The electrostatic force is measured by an electrostatic force measuring unit(S30). Capacitance of the recording medium at the predetermined position is decided from the measured electrostatic force(S40). Based on the volume of the decided capacitance, information recorded on the recording medium is reproduced(S50).
Abstract:
PURPOSE: An information storage device using charges is provided to use the existing magnetic medium as a recording medium without improving or deforming the magnetic medium. CONSTITUTION: An information storage device using charges includes a recording medium(50) and a head. The recording medium is composed of an electrode layer(57), a magnetic film(55) deposited on the electrode layer, and an abrasion-resistant thin film(53) formed on the surface of the magnetic film. The head has a conductive probe(51) that injects charges into the recording medium to record information while coming into contact with the recording medium and senses charges injected into the recording medium to reproduce information. The charges are injected into the recording medium according to potential between the electrode layer and conductive probe.
Abstract:
PURPOSE: A method for writing and reading high-density information using electron emission and a phase change material, an information storage device applying the same, and media used for the same are provided to speed up data write and read without generating damages due to abrasion of a micro tip. CONSTITUTION: A medium(20) has an information recording layer(22) in which a phase change is generated by electron absorbtion. An electron generating source(10) is installed at a position separated from the information recording layer at a regular gap, so that the electron generating source emits electrons to the information recording layer according to information for recording. A magnetic field generating source(30) forms a magnetic field for cyclotronic movement of the electrons on a proceed path of the electrons between the electron generating source and the medium. Data is written by locally melting and cooling the information recording layer by projecting the electrons to the information recording layer.
Abstract:
PURPOSE: A method for processing transmission data for wireless application service using USSD(Unstructured Supplement Service Data) and a recording media therefor are provided to increase the efficiency of the limited memory resources of mobile terminals by integrating memories in a WDP(Wireless Datagram Protocol) layer and a UDCP(USSD Dialogue Control Protocol) layer. CONSTITUTION: A WDP layer receives transmission data from an upper-level layer(500). The WDP layer stores the received data in a common buffer the WDP layer and the UDCP layer use in common(510). Then the WDP layer transfers control to the UDCP layer(520). The UDCP layer confirms a dialogue state to transmit and receive data with the other node through a USSD layer(530). If the dialogue state becomes a data transmission possible state, the UDCP layer checks the length of the transmission data(540) and judges whether SAR(Segmentation And Reassembly) is necessary(550). If SAR is unnecessary, the UDCP layer reads the whole transmission data and configure a transmission packet by adding WDP and UDCP headers(560). The UDCP layer transfers the transmission packet to the other node through the USSD layer(570).
Abstract:
A pipette for refining liquid crystal is provided to drop a liquid crystal within a pipette body on a liquid crystal tray while the liquid crystal is not contaminated with impurities, by using filters between the pipette body and a nozzle. A body(120) has a predetermined space therein. A plunger(140) is movably inserted into the body. A nozzle(126) communicates with the body. A liquid crystal within the body is exhausted through the nozzle. A first filter(152) and a second filter(154) are disposed between the body and the nozzle. A liquid crystal input tube(122) has one end communicating with the body. The liquid crystal is inputted in the body through the liquid crystal input tube.
Abstract:
시분할 다중방식을 이용한 정보저장장치 및 이를 이용한 정보기록방법 및 정보재생방법이 개시된다. 개시된 정보저장장치는, 정보가 저장되는 기록매체와, 기록매체를 지지하는 스테이지와, 스테이지를 구동하는 스캐너와, 기록매체에 정보검출순서에 따라 정보를 기록하거나 기록매체로부터 정보를 재생하는 복수개의 캔티레버로 이루어지는 캔티레버 어레이 및 상기 스캐너를 구동하는 구동신호를 인가하는 스캐너 구동부, 상기 캔틸레버에 정보 기록을 위한 전압 신호 또는 정보 재생을 위한 전압 변조 신호를 인가하는 신호 송신부와 상기 전압변조신호가 입력된 상기 캔티레버가 상기 기록매체와 상호작용하여 송출하는 전류신호와 상기 기준 전압신호에 의한 전류신호를 수신한 다음 차동하여 정보재생 전류신호를 출력하는 신호수신부를 포함하는 하나의 제어부;를 구비한다. 복수개의 캔티레버를 하나의 제어회로로 제어하여 저전력으로 구동할 수 있으며 소형화가 가능하고 가차동형 커패시터를 구비하여 제어가 용이하고 등속으로 이동하며 정보를 기록하고 검출하므로 고속으로 정보를 기록하고 재생할 수 있다.