Wireless communication method and system using beam direction-variable antenna
    3.
    发明授权
    Wireless communication method and system using beam direction-variable antenna 失效
    无线通信方法和系统采用波束方向可变天线

    公开(公告)号:US06879845B2

    公开(公告)日:2005-04-12

    申请号:US09930134

    申请日:2001-08-16

    IPC分类号: H04B7/02 H04W16/28 H04M1/00

    CPC分类号: H04W16/28

    摘要: In a time-division multiplexing wireless communication system, an antenna module has plural antenna elements. Receiver high-frequency circuit synthesizes signals from the antenna elements according to an antenna directivity having a desired beam pattern. Demodulator selects one of the received signals from wireless terminals according to the synthesized received signals, and determines transmission beam direction information for use in directing the beam in the selected direction. Weighting circuit generates weight coefficients for setting of the beam patterns and transmission beam directions according to the transmission beam direction information, and produces transmission time slots according to a table listing the relations of the transmission beam directions and the time slots for use in the beam radiation in those directions. Down-link fixed beam-forming circuit and modulator control the antenna module using the generated beam pattern, beam direction and transmission time slots to transmit the down-link signal.

    摘要翻译: 在时分复用无线通信系统中,天线模块具有多个天线元件。 接收机高频电路根据具有所需波束图案的天线方向性从天线元件合成信号。 解调器根据合成的接收信号从无线终端选择一个接收到的信号,并且确定用于将波束指向所选方向的传输波束方向信息。 加权电路根据传输波束方向信息产生用于设置波束图案和传输波束方向的加权系数,并根据列出发射波束方向与用于波束辐射的时隙的关系的表产生传输时隙 在这些方向。 下行链路固定波束形成电路和调制器使用生成的波束图案,波束方向和传输时隙来控制天线模块,以发送下行链路信号。

    Base station and mobile communication system
    5.
    发明授权
    Base station and mobile communication system 失效
    基站和移动通信系统

    公开(公告)号:US07068637B2

    公开(公告)日:2006-06-27

    申请号:US09794343

    申请日:2001-02-28

    IPC分类号: H04B7/216

    CPC分类号: H04B1/71072

    摘要: In a mobile communication system employing code division multiple accesses and having radio logical channels such as control channels and traffic channels, for the purpose of interference cancellation processing which is implemented without a large processing delay even under a call control application, the baseband receiving part of the mobile communication system includes a common control channel demodulator 302 which executes the demodulation processing of a common control channel as to a received baseband reception signal 301, an interference canceller 309 which executes interference cancellation processing for a received multiplexed signal on the basis of the notification information of the control channels, and a synthesis/error correction processor 315 which executes error correction processing, etc. as to user information having undergone the interference cancellation processing and thereafter executes frame formation processing. The common control channel is demodulated by the common control channel demodulator 302 and is not submitted to interference cancellation processing, thereby to heighten the processing speed of system information. In the interference canceller 309, cross-correlation interferences are cancelled as to the dedicated control channel and the traffic channel other than the common control channel, thereby to enhance a channel efficiency.

    摘要翻译: 在采用码分多址的移动通信系统中,具有诸如控制信道和业务信道的无线电逻辑信道,为了即使在呼叫控制应用下也没有大的处理延迟而实现的干扰消除处理,基带接收部分 移动通信系统包括公共控制信道解调器302,其执行关于接收基带接收信号301的公共控制信道的解调处理,干扰消除器309,其基于通知执行接收的多路复用信号的干扰消除处理 控制信道的信息,以及对经过干扰消除处理的用户信息执行纠错处理的合成/纠错处理器315,然后执行帧形成处理。 公共控制信道由公共控制信道解调器302解调,不进行干扰消除处理,提高系统信息的处理速度。 在干扰消除器309中,对专用控制信道和除公共控制信道以外的业务信道的互相关干扰被消除,从而提高信道效率。

    Mobile terminal, a base station, and a synchronization control method
    6.
    发明授权
    Mobile terminal, a base station, and a synchronization control method 失效
    移动终端,基站和同步控制方法

    公开(公告)号:US07061968B2

    公开(公告)日:2006-06-13

    申请号:US10847367

    申请日:2004-05-18

    IPC分类号: H04B1/69

    摘要: In a mobile communication system, the tracking of synchronization is conducted in a stable state even in a multipath environment. A delay profile detector calculates a delay profile a(n) using a despread signal for each processing unit n. A delay profile averaging unit averages a(n) to produce Ave(|a(n)|2). A data symbol detector conducts rake combining of the despread signal using a(n) and Ave(|a(n)|2). According to a(n) and Ave(|a(n)|2, a weighting function unit calculates a representative value representing delay waves. A loop filter generates a control signal in response to the representative value. A clock controller controls a spread code generator according to the control signal.

    摘要翻译: 在移动通信系统中,即使在多路径环境中,同步的跟踪仍处于稳定状态。 延迟分布检测器使用每个处理单元n的去扩展信号来计算延迟分布a(n)。 延迟分布平均单元平均化a(n)以产生Ave(| a(n)| 2)。 数据符号检测器使用(n)和Ave(| a(n)| 2)进行解扩信号的前置合并。 根据a(n)和Ave(| a(n)| 2 ,加权函数单元计算代表延迟波的代表值,环路滤波器响应于代表值产生控制信号。 时钟控制器根据控制信号控制扩展码发生器。

    Ignition coil for an internal combustion engine
    7.
    发明授权
    Ignition coil for an internal combustion engine 失效
    内燃机点火线圈

    公开(公告)号:US5703556A

    公开(公告)日:1997-12-30

    申请号:US769268

    申请日:1996-12-18

    CPC分类号: H01F38/12 H01F2038/122

    摘要: The invention is directed to an ignition coil for an internal combustion engine which includes a columnar member having a plurality of magnetic plates, e.g., silicon steel plates stacked one on the other, each of which is a flat plate with its opposite ends having a width greater than that of its middle portion. Each silicon steel plate has a middle portion whose width is gradually increased from the plates placed at the opposite sides of the columnar member to the plate placed in the center of the columnar member, to form a circular cross section. Whereas, the opposite end portions of the columnar member have a rectangular cross section which is greater in area than the circular cross section of the middle portion, respectively. A plurality of recesses are formed on one side of each steel plate, and a plurality of protrusions are formed on the other side of each steel plate. The silicon steel plates stacked one on the other under pressure, so that the recesses and the protrusions are connected to form a plurality of stacked portions on the columnar member. The ignition coil further includes a primary winding and a secondary winding which are wound around the columnar member, a magnetic cylindrical member in which the columnar member is received, and a magnetic cylindrical case in which the cylindrical member and the columnar member are received.

    摘要翻译: 本发明涉及一种用于内燃机的点火线圈,其包括具有多个磁性板的柱状构件,例如彼此堆叠的硅钢板,每个都是平板,其相对端具有宽度 大于其中间部分。 每个硅钢板具有宽度从放置在柱状构件的相对侧的板逐渐增加到放置在柱状构件的中心的板的宽度的中间部分,以形成圆形横截面。 而柱状构件的相对端部分别具有比中间部分的圆形横截面大的面积的矩形横截面。 在每个钢板的一侧上形成有多个凹部,并且在每个钢板的另一侧上形成有多个突起。 硅钢板在压力下彼此堆叠,使得凹部和突起被连接以在柱状构件上形成多个堆叠部分。 点火线圈还包括缠绕在柱状构件上的初级绕组和次级绕组,容纳柱状构件的磁性圆柱形构件和容纳圆柱形构件和柱状构件的磁性圆筒形壳体。

    Method of making an ignition coil
    8.
    发明授权
    Method of making an ignition coil 失效
    制作点火线圈的方法

    公开(公告)号:US5685065A

    公开(公告)日:1997-11-11

    申请号:US507521

    申请日:1995-07-26

    摘要: An inner core for an ignition coil is inserted into a bobbin, around which a primary winding and a secondary winding are disposed. An outer core is inserted into a housing to form a magnetic circuit with the inner core. A magnet member, which is made of a permanent magnet material such as Sm.sub.1 Co.sub.5, is connected to the inner core. The bobbin, which is assembled with the inner core, the magnet member, the primary and secondary windings, is inserted into the housing, with the magnet member positioned between the inner core and the outer core, and then the inside of the housing is molded by a synthetic resin. Thereafter, the magnet member is magnetized to provide a predetermined magnetic force. The magnet member may be molded by Sm.sub.1 Co.sub.5 to form a plate having a thickness of 1.5 mm and more.

    摘要翻译: 用于点火线圈的内芯被插入到绕线筒中,初级绕组和次级绕组设置在绕线架上。 将外芯插入壳体中以与内芯形成磁路。 由诸如Sm1Co5的永磁材料制成的磁体构件连接到内芯。 与内芯,磁体构件,初级和次级绕组组装的线轴被插入壳体中,磁体构件位于内芯和外芯之间,然后模制壳体内部 通过合成树脂。 此后,磁体被磁化以提供预定的磁力。 磁体构件可以由Sm1Co5模制,以形成厚度为1.5mm以上的板。

    Mobile radio communication system employing time division multiple
transmission scheme
    9.
    发明授权
    Mobile radio communication system employing time division multiple transmission scheme 失效
    移动无线通信系统采用时分多址传输方案

    公开(公告)号:US5652752A

    公开(公告)日:1997-07-29

    申请号:US406478

    申请日:1995-03-20

    摘要: In a mobile radio communication system employing a time-division multiple transmission scheme, having a plurality of base stations and a plurality of personal stations, an arbitrary base station, when detecting a pilot signal transmitted from any master base station in the mobile radio communication system, acts as a slave base station which does not transmit its pilot signal but transmits and receives a common control signal to and from a personal station utilizing a frequency channel occupied by the pilot signal. On the other hand, when not receiving the pilot signal, the base station searches for an available frequency channel, and acts as a master base station which transmits its pilot signal on the available frequency channel to occupy the frequency channel, and transmits and receives the common control signal to and from a personal station on that frequency channel.

    摘要翻译: 在使用具有多个基站和多个个人站的时分多路传输方式的移动无线通信系统中,任意基站在检测到移动无线通信系统中的任何主基站发送的导频信号时 作为不发送其导频信号的从基站,利用由导频信号占用的频道来发送和接收来自个人站的公共控制信号。 另一方面,在没有接收到导频信号的情况下,基站搜索可用的频道,作为在可用频率信道上发送其导频信号的主基站,占据频道,并发送和接收 与该频道上的个人站的通用控制信号。

    Speech coding system using excitation pulse train
    10.
    发明授权
    Speech coding system using excitation pulse train 失效
    语音编码系统采用激励脉冲串

    公开(公告)号:US5119424A

    公开(公告)日:1992-06-02

    申请号:US282497

    申请日:1988-12-12

    IPC分类号: G10L19/08 G10L19/04 G10L19/10

    CPC分类号: G10L19/10

    摘要: A speech signal is analyzed for each frame so that it is separated into spectral envelope information and excitation information, and the excitation information is expressed by a plurality of pulses. Judgement is conducted as to whether the current frame is a voiced frame immediately after the transition from an unvoiced frame, a voiced frame continuative from a voiced frame or an unvoiced frame, and excitation pulses are generated in accordance with the judgement result. In case of a continuing voiced frame, the excitation pulse position of the current voiced frame is determined based on the pitch period with respect to the excitation pulse position of the immediately preceding voiced frame so that the excitation pulse train is generated at a position approximated to the determined position.

    摘要翻译: 针对每个帧分析语音信号,使其被分离为频谱包络信息和激励信息,并且激励信息由多个脉冲表示。 进行关于当前帧是否是从无声帧过渡之后的有声帧,从有声帧或无声帧连续的有声帧,以及根据判断结果生成激励脉冲的判断。 在连续有声帧的情况下,基于相对于紧接在前的有声帧的激励脉冲位置的音调周期来确定当前有声帧的激励脉冲位置,使得激励脉冲串在近似于 确定的位置。