Channel estimation in a multi-user MIMO-OFDM system in the presence of user terminal symbol-specific phase offsets
    3.
    发明授权
    Channel estimation in a multi-user MIMO-OFDM system in the presence of user terminal symbol-specific phase offsets 有权
    在存在用户终端符号特定相位偏移的情况下在多用户MIMO-OFDM系统中的信道估计

    公开(公告)号:US08687722B2

    公开(公告)日:2014-04-01

    申请号:US13516130

    申请日:2011-09-01

    IPC分类号: H04K1/10

    摘要: An OFDM wireless communication system with an access point and a plurality of remote user terminals estimates an uplink channel. The access point receives training symbols transmitted by the user terminals. Each training symbol includes pilot symbols associated with phase offset estimation OFDM sub-carriers. The phase offset estimation sub-carriers include subsets of sub-carriers associated with each respective user terminals. Each subset is used exclusively by the associated user terminal during channel estimation. The channel estimation sub-carriers are used by all user terminals. For each terminal the access point estimates symbol-specific phase offsets specific to the user terminal using the received pilot symbols associated with the user specific subset of the phase offset estimation sub-carriers. The access point also estimates the uplink channel using the user-terminal-symbol-specific phase offset estimates and the received symbols.

    摘要翻译: 具有接入点和多个远程用户终端的OFDM无线通信系统估计上行链路信道。 接入点接收用户终端发送的训练符号。 每个训练符号包括与相位偏移估计OFDM子载波相关联的导频符号。 相位偏移估计子载波包括与每个相应用户终端相关联的子载波子集。 每个子集在信道估计期间由相关联的用户终端专门使用。 信道估计子载波由所有用户终端使用。 对于每个终端,接入点使用与相位偏移估计子载波的用户特定子集相关联的接收到的导频符号来估计特定于用户终端的特定于符号的相位偏移。 接入点还使用用户终端符号特定的相位偏移估计和接收到的符号来估计上行链路信道。

    Fixed multiple access wireless communication
    4.
    发明授权
    Fixed multiple access wireless communication 有权
    固定多路无线通信

    公开(公告)号:US08675512B2

    公开(公告)日:2014-03-18

    申请号:US12746911

    申请日:2009-08-10

    IPC分类号: H04J1/16 H04J3/06

    摘要: A user terminal for wireless communication with a remote access point can include a mapping module, a delay module, a transmit module, and a directional antenna. The mapping module can be used to map one or more input data bits to an uplink symbol. The delay module can be used to apply a delay to the uplink symbol. The transmit module can be used to modulate the delayed symbol into a frequency channel. The directional antenna can be oriented along a dominant path to the access point, and the antenna is used to transmit the modulated symbol to the access point. The delay is chosen such that the transmitted symbol arrives at the access point simultaneously with a another symbol that is modulated into the frequency channel and transmitted by another user terminal.

    摘要翻译: 用于与远程接入点进行无线通信的用户终端可以包括映射模块,延迟模块,发射模块和定向天线。 映射模块可用于将一个或多个输入数据位映射到上行链路符号。 延迟模块可用于向上行链路符号应用延迟。 发射模块可用于将延迟符号调制成频道。 定向天线可以沿着接入点的主要路径定向,并且天线用于将调制符号发送到接入点。 选择延迟使得所发送的符号与调制到频率信道中并由另一用户终端发送的另一符号同时到达接入点。

    Force-feedback multidirectional input device
    5.
    发明授权
    Force-feedback multidirectional input device 有权
    力反馈多向输入装置

    公开(公告)号:US08586885B2

    公开(公告)日:2013-11-19

    申请号:US13247464

    申请日:2011-09-28

    IPC分类号: H01H25/00

    摘要: A force-feedback multidirectional input device includes a slider slidably supported by a support base and an operation knob joined to the slider. In a sliding operation, the slider operates in conjunction with actuating members included in a force-feedback unit. Therefore, a sense of force based on the sliding is fed back to the operation knob. Furthermore, the slider is elastically urged by coil springs toward an inner bottom surface of a housing space defined in the support base. In a depressing operation, the operation knob presses the support base downward against the urging force of coil springs. Therefore, a vertically movable member joined to the support base is moved downward along guide portions (convex rails and concave grooves). Thus, a push switch provided on a pedestal (circuit board) is pressed and activated by the vertically movable member.

    摘要翻译: 力反馈多向输入装置包括由支撑基座可滑动地支撑的滑块和连接到滑块的操作旋钮。 在滑动操作中,滑块与包括在力 - 反馈单元中的致动构件一起操作。 因此,基于滑动的力的感觉被反馈到操作旋钮。 此外,滑块被螺旋弹簧弹性地推向限定在支撑基座中的壳体空间的内底表面。 在按压操作中,操作旋钮克服螺旋弹簧的推力向下按压支撑底座。 因此,与支撑基座接合的可升降构件沿着引导部(凸轨和凹槽)向下移动。 因此,设置在基座(电路板)上的按钮开关被可垂直移动的构件按压并启动。

    Channel Estimation In A Multi-User MIMO-OFDM System In The Presence Of User Terminal Symbol-Specific Phase Offsets
    6.
    发明申请
    Channel Estimation In A Multi-User MIMO-OFDM System In The Presence Of User Terminal Symbol-Specific Phase Offsets 有权
    用户终端符号特定相位偏移存在的多用户MIMO-OFDM系统中的信道估计

    公开(公告)号:US20120314751A1

    公开(公告)日:2012-12-13

    申请号:US13516130

    申请日:2011-09-01

    IPC分类号: H04L27/28 H04W88/08

    摘要: Disclosed is an OFDM wireless communication system comprising an access point, and a plurality of remote user terminals. The access point receives one or more training symbols transmitted by the user terminals, each training symbol comprising pilot symbols associated with phase offset estimation OFDM sub-carriers of said training symbol, the phase offset estimation sub-carriers comprising subsets of sub-carriers associated with respective user terminals, wherein each subset is used exclusively by the associated user terminal during channel estimation, and further symbols associated with channel estimation OFDM sub-carriers of said training symbol, wherein the channel estimation sub-carriers are used by all user terminals. The access point estimates, for each user terminal, symbol-specific phase offsets specific to the user terminal using the received pilot symbols associated with the user specific subset of the phase offset estimation sub-carriers; and estimates the uplink channel using the user-terminal-symbol-specific phase offset estimates and the received further symbols.

    摘要翻译: 公开了一种包括接入点和多个远程用户终端的OFDM无线通信系统。 接入点接收由用户终端发送的一个或多个训练符号,每个训练符号包括与所述训练符号的相位偏移估计OFDM子载波相关联的导频符号,所述相位偏移估计子载波包括与 相应的用户终端,其中每个子集在信道估计期间由相关联的用户终端专门使用,以及与所述训练符号的信道估计OFDM子载波相关联的其他符号,其中,所有用户终端使用信道估计子载波。 接入点针对每个用户终端,使用与相位偏移估计子载波的用户特定子集相关联的接收到的导频符号来估计特定于用户终端的符号特定相位偏移; 并且使用用户终端符号特定的相位偏移估计和所接收的另外的符号来估计上行链路信道。

    FUEL INJECTION VALVE DEVICE
    7.
    发明申请
    FUEL INJECTION VALVE DEVICE 审中-公开
    燃油喷射阀装置

    公开(公告)号:US20100282871A1

    公开(公告)日:2010-11-11

    申请号:US12811412

    申请日:2009-01-28

    IPC分类号: F02M61/10 F02M61/18

    CPC分类号: F02M61/14 F02M57/06

    摘要: A fuel injection valve can be provided, with which temperature at needle valve seating position can be decreased and carburization of fuel and deposition of the carbide near the needle valve seating position can be prevented resulting in stable normal fuel injection control, and which is applicable to small and middle and also to large engines, particularly gas engines. The fuel injection valve is composed such that distance (A) from a seating face of the nozzle in the nozzle supporting body to a seating position of the needle valve in the nozzle is determined to be smaller than distance (B) from the nozzle seating face in the nozzle supporting body to the lower end of clearance between a nozzle insertion hole of the nozzle supporting body and a fitting part of the nozzle inserted into the nozzle insertion hole, thereby suppressing heat flow to the needle valve seating position.

    摘要翻译: 可以设置燃料喷射阀,可以防止针阀安置位置处的温度,并且可以防止燃料渗碳和碳化氢在针阀座位置附近沉积,从而实现稳定的正常燃油喷射控制,并且适用于 小型和中型,还有大型发动机,特别是燃气发动机。 燃料喷射阀被构成为使得从喷嘴支撑体中的喷嘴的座面到喷嘴中的针阀的就座位置的距离(A)被确定为小于从喷嘴座面 在喷嘴支撑体中,喷嘴支撑体的喷嘴插入孔和插入喷嘴插入孔的喷嘴的嵌合部之间的间隙的下端,从而抑制到针阀的就座位置的热流。

    MUSIC GENRE JUDGING DEVICE AND GAME MACHINE HAVING THE SAME
    8.
    发明申请
    MUSIC GENRE JUDGING DEVICE AND GAME MACHINE HAVING THE SAME 有权
    音乐基因判断装置和具有相同功能的游戏机

    公开(公告)号:US20100216554A1

    公开(公告)日:2010-08-26

    申请号:US12096248

    申请日:2006-08-12

    IPC分类号: A63F9/24 G06F17/00

    摘要: The music genre judging device comprises: a signal processing unit 10 for outputting integration value and differential value for each of low-frequency component and high-frequency component of music reproduction signal inputted from a music reproduction device 100 to a line input terminal 4; a data generation unit 30 for inputting the integration value and the differential value outputted from the signal processing value by each predetermined sampling unit time, judging whether or not each of the integration value and the differential value exceeds a predetermined level within the sapling unit time, and generating analysis data obtained by totalizing for each sampling cycle, the number of times of judgments that the value exceeding the predetermined level is detected; and a data analysis unit 31 for judging a genre of music outputted from the music reproduction n device 100 based on the totalized value of the analysis data.

    摘要翻译: 音乐类型判断装置包括:信号处理单元10,用于输出从音乐再现设备100输入到线路输入端子4的音乐再现信号的低频分量和高频分量中的每一个的积分值和差分值; 数据生成单元30,用于输入由每个预定采样单元时间从信号处理值输出的积分值和差分值,判断每个积分值和差分值是否超过树苗单位时间内的预定水平, 并且生成通过对每个采样周期进行累加而获得的分析数据,检测出超过预定电平的判定次数; 以及数据分析单元31,用于基于分析数据的总计值来判断从音乐再现n设备100输出的音乐的类型。

    ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
    9.
    发明申请
    ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS 有权
    电子照相机,过程盒和图像形成装置

    公开(公告)号:US20100178074A1

    公开(公告)日:2010-07-15

    申请号:US12684545

    申请日:2010-01-08

    摘要: To provide an electrophotographic photoconductor including: a substrate; a charge generating layer; and a charge transporting layer, the charge generating layer and the charge transporting layer being disposed over the substrate, wherein the charge transporting layer contains a charge transporting material represented by General Formula (I) below and an additive represented by General Formula (II) below: where R1, R2 and R3 each independently denote any one of a hydrogen atom, a halogen atom, an alkyl group which may contain a substituent, and an alkoxy group which may contain a substituent, where R4 and R5 each denote a tertiary butyl group, and R6 and R7 each independently denote one of an alkyl group which may contain a substituent, and an aryl group which may contain a substituent.

    摘要翻译: 提供一种电子照相感光体,包括:基材; 电荷产生层; 电荷传输层,电荷产生层和电荷输送层设置在基板上,其中电荷输送层含有下述通式(I)表示的电荷输送材料和下述通式(II)表示的添加剂 其中R 1,R 2和R 3各自独立地表示氢原子,卤素原子,可以含有取代基的烷基中的任一个,和可以含有取代基的烷氧基,其中R 4和R 5各自表示叔丁基 ,R6和R7各自独立地表示可以含有取代基的烷基和可以含有取代基的芳基。

    Electrophotographic photoreceptor with an undercoat layer containing a polyimide resin and electrophotographic apparatus with the photoreceptor
    10.
    发明授权
    Electrophotographic photoreceptor with an undercoat layer containing a polyimide resin and electrophotographic apparatus with the photoreceptor 失效
    具有含有聚酰亚胺树脂的底涂层和具有感光体的电子照相设备的电子照相感光体

    公开(公告)号:US07629096B2

    公开(公告)日:2009-12-08

    申请号:US10584348

    申请日:2004-12-21

    IPC分类号: G03G5/14 G03G5/047

    摘要: An electrophotographic photoreceptor that without detriment to excellent electrophotographic performance, realizes coating of any defects on a conductive substrate and excels in repetition stability and environmental performance. There is provided an electrophotographic photoreceptor having a photoreceptive layer superimposed via an undercoat layer on a conductive support, characterized in that the undercoat layer contains a polyimide resin and that at least one of the compounds of the following formulae is contained as a charge transfer agent of the photoreceptive layer.

    摘要翻译: 不损害电子照相性能的电子照相感光体实现导电性基材上的任何缺陷的涂布,并具有优异的重复稳定性和环境性能。 提供一种电子照相感光体,其具有通过导电性载体上的底涂层叠加的感光层,其特征在于,底涂层含有聚酰亚胺树脂,并且含有下列化合物中的至少一种作为电荷转移剂 感光层。