Abstract:
본발명의실시예에따른디스플레이장치는디스플레이패널, 전력전달네트워크, 이미지컨트롤러, 그리고 PDN 컨트롤러를포함할수 있다. 디스플레이패널은복수의서브패널들을포함할수 있다. 전력전달네트워크는제어신호에의해제어되고, 복수의서브패널들각각에제어신호에의해정해진전압을전달하고, 제어신호를결정하기위한상태정보를생성할수 있다. 이미지컨트롤러는프레임이미지데이터를입력받아저장하고, 윈도우사이즈에의해통합할프레임수를결정하고, 결정된수의프레임들의프레임이미지데이터를하나의이미지로통합하여통합이미지데이터를생성할수 있다. PDN 컨트롤러는상태정보와통합이미지데이터에기초하여제어신호와사이즈조절신호를생성하고, 생성된제어신호를전력전달네트워크에제공하고, 생성된윈도우조절신호를이미지컨트롤러에제공할수 있다. 사이즈조절신호는윈도우사이즈를조절할수 있다.
Abstract:
본발명은호스트로부터별도의전원을갖는 USB 장치를켜거나끌 수있는전원제어장치및 이의작동방법에관한것이다. 이를위한본 발명의전원제어장치는, 호스트와연결된 USB(Universal Serial Bus) 장치에대해, 호스트에서인코딩하여전송한 USB 장치의전원을켜거나끄기위한전원온/오프신호를수신하는수신부; 및전원온/오프신호를디코딩하고, 디코딩결과를근거로전원부에대한전원제어신호를생성하여전원부로송신하는처리부를포함하며, 전원온/오프신호는호스트와 USB 장치간데이터송수신에사용되는 SETUP 단계, DATA 단계및 STATUS 단계중, SETUP 단계의 SETUP 패킷에포함되어송신되는것을특징으로한다.
Abstract:
PURPOSE: A register window overflow/underflow processing apparatus is provided to improve program execution performance of a reduced instruction set computer (RISC) processor, by processing overflow and/or underflow as hardware in the RISC processor having a register window structure. CONSTITUTION: A register window (20) includes local registers and incoming registers, and internal only memories (23,24) store content of the local and incoming register in word unit. A dedicated data bus (25) connects the local and incoming register and the internal only memory. A memory word counter (26) counts storage space of the word unit remaining in the internal only memory. If window overflow or underflow is generated, a logic block controls operation of the dedicated data bus.
Abstract:
A method for converting a dimension of a vector is provided to divide an entire frequency domain of a variable dimension vector into plural frequency domains during SEW(Slowly Evolving Waveform) spectrum vector quantization in WI(Waveform Interpolation) speech coding and convert the variable dimension vector into vectors of different fixed dimensions according to the divided frequency domains so that errors caused by the vector dimension conversion can be suppressed and a codebook memory necessary for the vector quantization can be effectively reduced. A method for converting a dimension of a vector comprises the following steps of: extracting a specific parameter having a pitch period from an input speech signal and generating a vector of a variable dimension which varies according to the pitch period(S100); dividing an entire frequency domain of the generated vector of the variable dimension into at least two frequency domains(S200); and converting the vector of the variable dimension into vectors of different fixed dimensions according to the divided frequency domains(S300).
Abstract:
The present invention reduces complexity of computation as about 40% comparing to the conventional depth first tree search method. A method for searching an algebraic codebook in algebraic code excited linear prediction (ACELP) vocoding using a depth first tree method, includes the steps of: a) searching branches of predetermined levels to predict a branch in which optimum pulse is located; b) choosing a predetermined number of branches according to the search result of the step a) and removing residual branches; and c) searching the chosen branches and choosing optimum algebraic code.