Abstract:
A robot cleaner sends an oscillating wave, receives a wave reflected from an object and a composite wave in which the oscillating wave and the reflected wave are overlapped, detects an electric signal generated when sending the oscillating wave and receiving the reflected wave and the composite wave, determines information on the surface of the object based on the electric signal, and controls traveling of the robot cleaner based on the determined information on the surface of the object. The robot cleaner and the method for controlling the robot cleaner can determine accurate information on the surface of an object, such as basic information on a location of an object, information on a mechanical property, such as a material, a surface shape, an elasticity degree of an object, information on contamination caused by liquid, etc. by analyzing waveforms of an oscillating wave, an reflected wave, a composite wave of the oscillating wave and the reflected wave as well as the strength of a ultrasonic wave signal and can efficiently control a motion of the robot cleaner by controlling the motion based on the information on the surface of the object.
Abstract:
PURPOSE: A robot cleaner and a controlling method thereof are provided to reduce a duplicated cleaning area or a non-cleaning area by cleaning with moving along a driving path inside a reset cleaning area. CONSTITUTION: A robot cleaner comprises an input unit(100) and a control unit(160). The input unit receives a command for a cleaning mode. The control unit defines a plurality of cleaning areas based on the position of the robot cleaner when a first cleaning mode is selected. The control unit performs cleaning in order to clean each defined area. The control unit re-defines a cleaning area or a cleaning direction which belongs to the robot cleaner along a detected standard wall surface. The control unit drives along a predetermined driving path in re-defined cleaning area and performs the cleaning. [Reference numerals] (100) Input unit; (110) Photographing unit; (120) Positioning unit; (130) Feature map generating unit; (140) Obstacle sensing unit; (150) Path map generating unit; (160) Control unit; (170) Storage unit
Abstract:
PURPOSE: A device for sensing obstacles and a robot cleaner including the same are provided to sense obstacles existed to front direction using line light without mounting a plurality of sensors or a separate servo mechanism. CONSTITUTION: A device for sensing obstacles comprises a line light transmitting unit(110) and a reflection light receiving unit(120). The line light transmitting unit includes a light emitting unit(112) and a first circular cone type mirror(111). In the first circular cone type mirror, a cusp is arranged to face to the light emitting unit with respect to direction for irradiating the light of the light emitting unit. The reflection light receiving unit includes a second circular cone type mirror(121), a lens(122), and a camera tube(123). The second circular cone type mirror is irradiated in the first circular cone type mirror and concentrates light reflected to the obstacle. The lens is separated from the cusp of the second circular cone type mirror and passes the reflection light. [Reference numerals] (111) First circular cone type mirror; (112) Light emitting unit; (113) Light emission driving unit; (121) Second circular cone type mirror; (122) Optical lens; (123) Camera unit; (124) Image processing unit; (130) Obstacle sensing control unit;
Abstract:
PURPOSE: A nonvolatile memory system and data managing method thereof are provided to stably perform the backup of management data and store managing data when a user turns off a nonvolatile memory system. CONSTITUTION: A buffer memory(230) stores metadata. A temporary power supply(260) supplies power. A data compressor(250) compresses the metadata. A plurality of non-volatile memory devices(247) stores the compacted meta data by controlling a memory controller. The operation of controlling the compression and storage is processed in parallel.
Abstract:
PURPOSE: A data storage device and a data storage system including thereof are provided to reduce the number of merge operation by expanding data block of a flash memory. CONSTITUTION: A flash memory(110) comprises plural data blocks. An FTL(Flash Translation Layer)(120) classifies the data blocks into a first and a second group data blocks(111, 113). According to the decision result of the data signal inputted from outside, the FTL records the data signal in the first group data block or the second group data block expanded from the first group data block. The FTL comprises a data determining unit, a state judgment unit, an expansion selecting unit, and a link control unit.
Abstract:
A method for reproducing media contents by using a non-volatile storage medium and an apparatus thereof are provided to limitedly apply power to devices necessary for reproducing media contents and reproduce the media contents by using a non-volatile cache memory and an on board cache memory inside a hybrid hard disk, thereby realizing quick booting and low power consumption. A power unit(620) supplies power to devices necessary for reproducing media contents. A reading unit(630) reads a boot code stored in a non-volatile storage medium(660) among the devices to which power is supplied. A reproducing unit(650) reproduces the media content stored in the non-volatile storage medium based on the read boot code. A mode selection unit(610) selects a normal mode or a media mode for media contents playback. An interface program executor(640) performs an interface program. The interface program controls data input-output with a media contents player.
Abstract:
PURPOSE: A stacked chip scale package is provided to miniaturize a stacked chip scale package by stacking a plurality of chip scale packages. CONSTITUTION: The first and the second metal layers(117,127) and the first and the second slots(112a,122a) are formed on the first and the second tape substrates(112,122), respectively. The first and the second semiconductor chips(111,121) includes the first active surface and the second active surface(121a) having the first and the second bonding pads(113,123) and the first back side and the second back side(121b), respectively. The first and the second protective layers(116,126) are formed on the first and the second metal layers(117,127) in order to expose the first and the second wire fingers(117a,127a), respectively. The first and the second connection portions(114,124) are connected with the first and the second bonding pads(113,123) and the first and the second metal layers(117,127) through the first and the second slots(112a,122a), respectively. The first and the second connection portions(114,124) are sealed with the first and the second sealing portion(118,128), respectively.
Abstract:
본 발명은 액상의 접착제를 반도체 칩 표면에 인가하는 방법과 장치 및 그로부터 형성된 접착층을 갖는 리드-온-칩형 반도체 칩 패키지에 관한 것이다. 복수개의 리드들이 반도체 칩의 활성면 상부에 부착되는 리드-온-칩형 패키지는 반도체 칩과 내부 리드 간의 물리적 접착이 3층 구조의 접착 테이프에 의하여 이루어지기 때문에 신뢰성 측면에서 여러 가지 문제점이 발생한다. 따라서 본 발명은 이러한 문제점을 해결하기 위하여, 소정의 점도를 갖는 액상의 접착제를 반도체 칩의 표면에 인가하고, 리드 프레임과 반도체 칩을 열압착함으로써 단일층의 접착층을 형성하는 것이다. 접착제를 반도체 칩에 인가하기 위한 방법으로서, 접착제가 담겨있는 용기로부터 노즐을 통하여 접착제를 분사하거나, 접착제를 묻혀서 도포하는 방법 등이 사용되며, 이와 같은 접착제의 인가 장치는 웨이퍼로부터 본딩 스테이지로 반도체 칩을 이송하는 칩 이송장치에 함께 형성하거나 또는 별도로 형성할 수 있다.
Abstract:
본 발명은 리드 온 칩(Lead On Chip; LOC)용 접착제 도포장치에 관한 것으로, 액상의 접착제를 내부 리드에 일괄적으로 도포하여 반도체 칩과 내부 리드 사이의 접착 계면을 감소시킬 수 있는 리드 온 칩용 접착제 도포 장치를 제공한다. 리드 온 칩용 접착제 도포 장치는 액상의 접착제를 담을 수 있으며, 일측에 접착제의 배출구를 갖는 접착제 저장 수단과, 일측이 접착제 저장 수단의 배출구에 연결되며, 다른 일측의 하부면에 리드 온 칩용 리드 프레임의 내부 리드에 대응하는 복수개의 긴 도포구 형성된 노즐부를 포함한다. 특히, 리드 온 칩용 리드 프레임의 내부 리드에 노즐부가 근접한 상태에서 액상의 접착제가 도포구를 통하여 내부 리드에 일괄적으로 도포되며, 긴 도포구의 수에 따라서 액상의 접착제가 내부 리드의 끝단 뿐만 아니라 중간에도 도포된다.