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    • 1. 发明申请
    • Wide-band speech coder/decoder and method thereof
    • US20050010402A1
    • 2005-01-13
    • US10749569
    • 2003-12-30
    • Ho SungDae HwangKyung KimSung JungHong KangDae Youn
    • Ho SungDae HwangKyung KimSung JungHong KangDae Youn
    • G10L19/04G10L19/12
    • G10L19/125
    • A wide-band speech coder and a method thereof and a wide-band speech decoder and a method thereof are provided. The wide-band speech coder includes a speech characteristic classification unit, which stipulates a characteristic of speech corresponding to a current frame statistically using an open-circuit pitch value and a linear prediction coefficient in which a wide-code speech signal to be coded is perceptual weigh filtered, an adaptive codebook retrieving unit, which retrieves a pitch delay value around the open-circuit pitch value, calculates a pitch gain value, generates an adaptive codebook contribution signal corresponding to the retrieved pitch delay value, and outputs a difference between the generated adaptive codebook contribution signal and the perceptual weigh filtered signal as a first fixed codebook target signal, a first fixed codebook retrieving unit, which obtains a first fixed codebook index that can express the first fixed codebook target signal most properly, and a first fixed codebook gain value, generates a first fixed codebook contribution signal corresponding to the retrieved index, and outputs a difference between the first generated fixed codebook contribution signal and the first fixed codebook target signal as a second fixed codebook target signal, a second fixed codebook retrieving unit, which includes at least two second fixed codebooks according to a speech characteristic, selects a second fixed codebook according to the speech characteristic, and retrieves second fixed codebook indices that can express the second fixed codebook target signal most properly, and second fixed codebook gain values, and a parameter multiplexer, which quantizes and multiplexes the speech characteristic information, the pitch delay value, the pitch gain value, the first fixed codebook index, the first fixed codebook gain value, the second fixed codebook indices, and the second fixed codebook gain values, makes them as a bit stream, and transmits the bit stream to an external speech decoding terminal.
    • 3. 发明申请
    • LOW VOLTAGE ELECTRICITY DISTRIBUTION CIRCUIT
    • 低电压电力分配电路
    • US20070184703A1
    • 2007-08-09
    • US11733661
    • 2007-04-10
    • Kyung KimKyung Kim
    • Kyung KimKyung Kim
    • H01R4/50
    • H01R25/164H01R13/652H01R13/70H01R24/78H01R25/006H01R29/00H01R2103/00Y10S439/956
    • The low voltage electricity distribution circuit of the present invention is an electrical outlet that includes a receptacle mounted to a recess including either a plurality of wires or a bus bar system. The receptacle has at least one continuously live power socket and at least one switched power socket disposed on it. Each of the power sockets is capable of receiving an appliance plug. The receptacle is movable along the recess to a different location to allow for appliances, for example lamps or computers, to be located at many different points along the wall. In other forms of the distribution circuit a stand-alone unit that is fixed in place may be provided. Additionally, accessories for the above receptacles and sockets are provided.
    • 本发明的低电压配电电路是一个电源插座,它包括安装在包括多条电线或母线系统的凹槽中的插座。 插座具有至少一个连续的带电电源插座和设置在其上的至少一个开关电源插座。 每个电源插座都能够接收电器插头。 容器可以沿着凹部移动到不同的位置,以允许诸如灯或计算机的器具沿着墙壁位于许多不同的位置。 在分配电路的其他形式中,可以提供固定在位的独立单元。 另外,还提供了上述插座和插座的配件。