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    • 1. 发明申请
    • Heat pump air conditioner
    • 热泵空调
    • US20060156751A1
    • 2006-07-20
    • US11316988
    • 2005-12-27
    • Il HwangSeok YoonPil YoonKi KwonJin Choi
    • Il HwangSeok YoonPil YoonKi KwonJin Choi
    • F25B13/00F25B1/10
    • F25B13/00F25B2313/02521F25B2313/02523F25B2400/075F25B2500/02
    • A heat pump air conditioner includes an outdoor unit for heating use only for supplementing heating capacity when additional heating capacity must be provided to the heating capacity of an outdoor unit for heating and cooling in a heating mode. Since the outdoor unit for heating use only is installed independent from the outdoor units for heating and cooling use, such that the outdoor unit for heating use only can supplement the heating capacity only when the additional heating capacity is required in addition to the heating capacity of the outdoor units for heating and cooling use in the heating mode, in order to correspond to the heating load in cold climes, there is no need to install an outdoor unit having larger heating capacity than the required heating capacity. Thus, costs for installation and management are reduced.
    • 一种热泵空调器包括一个用于加热的室外单元,用于在加热模式下为了加热和冷却的室外单元的加热能力需要额外的加热能力时补充加热能力。 由于用于加热的户外单元仅与用于加热和冷却的室外单元独立地安装,所以仅在需要额外的加热能力的情况下才能使加热用的室外单元补充加热能力, 用于加热和冷却的室外单元在加热模式中使用,为了对应于冷空气中的加热负荷,不需要安装具有比所需加热能力更大的加热能力的室外单元。 因此,安装和管理成本降低。
    • 3. 发明申请
    • Apparatus and method for transmitting and receiving data in a code division multiplexing-frequency hopping-orthogonal frequency division multiple access communication system
    • 在码分复用跳频正交频分多址通信系统中发送和接收数据的装置和方法
    • US20050281317A1
    • 2005-12-22
    • US11153783
    • 2005-06-15
    • Seong OhKi Kwon
    • Seong OhKi Kwon
    • H04J11/00H04B1/69H04L5/02H04B1/713
    • H04L5/023H04B1/713
    • A system and method for transmitting data by a base station in a multiple access communication system including a plurality of sub-channels, each of which includes a predetermined number of sub-carrier bands, the sub-carrier bands being divided from an entire frequency band. The method includes the steps of: dividing input data streams in a unit of the sub-channels corresponding to each terminal into a plurality of data sequences based on a predetermined length; spreading each of the data sequences by a distinct spread spectrum code, respectively; summing and parallel-converting the spread data; hopping each frequency of the parallel-converted data in the unit of the sub-channels based on a frequency hopping pattern allocated to each of the terminals in advance; performing an inverse fast Fourier transform with respect to the hopped parallel-converted data; and transmitting the transformed data.
    • 一种用于在包括多个子信道的多址通信系统的多址通信系统中由基站发送数据的系统和方法,所述多个子信道中的每一个包括预定数量的子载波频带,所述子载波频带从整个频带 。 该方法包括以下步骤:基于预定长度将与每个终端相对应的子信道的单元中的输入数据流分成多个数据序列; 分别用不同的扩频码对每个数据序列进行扩频; 对扩展数据进行求和和并行转换; 基于预先分配给每个终端的跳频图案,跳跃以子信道为单位的并行转换数据的每个频率; 对跳跃的并行转换数据进行快速傅立叶反变换; 并发送变换后的数据。
    • 4. 发明申请
    • Compressor oil recovering apparatus and multi-unit air conditioner equiped with the same
    • 压缩机油回收装置和多机组合空调配套
    • US20060101845A1
    • 2006-05-18
    • US11280348
    • 2005-11-17
    • Ho JeongDo HaKi KimKi KwonSung Choi
    • Ho JeongDo HaKi KimKi KwonSung Choi
    • F25B43/02F25B1/10
    • F25B31/004F25B13/00F25B2313/006F25B2313/0233F25B2400/075F25B2700/03
    • A multi-unit air conditioner is disclosed. The multi-unit air conditioner includes an outdoor unit comprising at least two compressors, a plurality of indoor units connected to the outdoor unit, a plurality of oil separators each connected to an associated one of the compressors to separate oil from a refrigerant discharged from the associated compressor, an oil storage for storing the oil separated from each oil separator, a plurality of oil supplying tubes each having one end connected to the oil storage, and the other end connected to an associated one of the compressors to supply the oil stored in the oil storage to the associated compressor, and adjusters each arranged at an associated one of the oil supplying tubes to adjust an amount of oil supplied from the oil storage to an associated one of the compressors in accordance with an oil storage state of the associated compressor.
    • 公开了一种多机组空调。 多机空调包括室外机,其包括至少两台压缩机,连接到室外单元的多个室内单元,多个油分离器,每个分离器与相关联的一个压缩机连接,以将油与从 相关联的压缩机,用于存储从每个油分离器分离的油的油存储器,多个供油管,每个油供给管的一端连接到油存储器,另一端连接到相关联的一个压缩机,以将储存在 对相关联的压缩机的油存储器和调节器,每个调节器布置在相关联的一个供油管中,以根据相关联的压缩机的油储存状态来调节从油存储器供应到相关联的一个压缩机的油量 。
    • 5. 发明申请
    • LOW DIVIDE RATIO PROGRAMABLE FREQUENCY DIVIDER AND METHOD THEREOF
    • 低分辨率可编程频率分频器及其方法
    • US20060284654A1
    • 2006-12-21
    • US11380917
    • 2006-04-28
    • Sung ShinYoo KimKi KwonSoo LeeJin LeeYo Moon
    • Sung ShinYoo KimKi KwonSoo LeeJin LeeYo Moon
    • H03B19/00
    • H03K23/68H03L7/1978
    • The invention provides a low divide ratio programmable frequency divider of a fractional-N type applied to a digital MOPLL tuner and a method thereof. In the invention, a divide ratio assigner assigns divide data as a main divide ratio and a pulse swallow value according to a first or a second dividing operation mode in response to a mode selection signal. A prescaler operates on the first or second divide operation mode in response to the mode selection signal. Also, a main counter divides a frequency from the prescaler by the main divide ratio. Further, a pulse swallow counter counts a clock of the main counter while outputting a pulse swallow signal to the prescaler. The pulse swallow signal has a swallow level if a counting value corresponds to the pulse swallow value, and a non-swallow level if the counting value does not correspond to the pulse swallow value.
    • 本发明提供一种应用于数字MOPLL调谐器的分数N型的低分频比可编程分频器及其方法。 在本发明中,分频比分配器响应于模式选择信号,根据第一或第二分频操作模式分配除数数据作为主分频比和脉冲吞咽值。 预分频器响应于模式选择信号在第一或第二除法运算模式下操作。 另外,主计数器将预分频器的频率除以主分频比。 此外,脉冲吞咽计数器计数主计数器的时钟,同时向预分频器输出脉冲吞咽信号。 如果计数值对应于脉冲吞咽值,则脉冲吞咽信号具有吞咽水平,如果计数值与脉冲吞咽值不对应,则为非吞咽水平。
    • 9. 发明申请
    • Method and apparatus for detecting STBC-OFDM signals in time-variant channels
    • 用于在时变通道中检测STBC-OFDM信号的方法和装置
    • US20050249111A1
    • 2005-11-10
    • US11123084
    • 2005-05-06
    • Won JeonJeong SeoJung WeeKi KwonJong PaikDong Kim
    • Won JeonJeong SeoJung WeeKi KwonJong PaikDong Kim
    • H04B7/02H04J11/00H04L1/06H04L25/02H04L27/26
    • H04L27/2647H04B7/02H04L1/0643H04L25/022
    • The present invention relates to a method and apparatus for detecting STBC-OFDM signals in time-variant channels. The method includes a step of demodulating STBC-OFDM modulation signals into OFDM reception symbols using Fast Fourier Transform (FFT); a step of estimating a frequency response for each sub-channel; an STBC decoding step of calculating decision variables determining the A transmit data symbols that are transmitted during the B OFDM symbol periods for each sub-channel; and a step of determining the transmit data symbols based on the decision variables calculated at the STBC decoding step. In this case, the decision variables are calculated using a linear equation that allows a squared Euclidean distance from OFDM reception symbols, which are demodulated during the B symbol periods, to have a local minimum for each decision variable when the STBC encoding and the frequency responses estimated during the B OFDM symbol periods are applied.
    • 本发明涉及用于检测时变信道中的STBC-OFDM信号的方法和装置。 该方法包括使用快速傅里叶变换(FFT)将STBC-OFDM调制信号解调为OFDM接收符号的步骤; 估计每个子信道的频率响应的步骤; STBC解码步骤,用于计算确定在每个子信道的B OFDM符号周期期间发送的A个发送数据符号的决定变量; 以及基于在STBC解码步骤计算出的判定变量来确定发送数据符号的步骤。 在这种情况下,使用线性方程来计算决策变量,该线性方程允许在B符号周期期间被解调的来自OFDM接收符号的平方欧几里得距离在STBC编码和频率响应时具有每个决定变量的局部最小值 在B OFDM符号周期期间被估计。