Walsh-QPSK chip modulation apparatus for generating signal waveform in a
direct sequence spread spectrum communication system
    21.
    发明授权
    Walsh-QPSK chip modulation apparatus for generating signal waveform in a direct sequence spread spectrum communication system 失效
    用于在直接序列扩频通信系统中产生信号波形的沃尔什-QPSK码片调制装置

    公开(公告)号:US5940434A

    公开(公告)日:1999-08-17

    申请号:US911398

    申请日:1997-08-14

    CPC分类号: H04J13/0022 H04B1/707

    摘要: In a direct sequence spread spectrum communications system wherein user binary information symbols are spread spectrum modulated and transmitted to the other party, a non-coherent Walsh QPSK and a coherent Walsh QPSK modulation methods, wherein the PN spreading sequences for inphase and quadrature data in a conventional QPSK PN modulation scheme are coded by Walsh sequences indexed by a special rule to reduce the envelope variation of the transmitted signal, can reduce the envelope variation of transmit signal. And, in a direct sequence spread spectrum communications system wherein several user binary information symbols are spread spectrum modulated, the information symbols of each user are covered by user-specified different Walsh codes and transmitted to the other party, a QPSK modulation methods, wherein the polarity of quadrature PN spreading sequence of a user is controlled by a system controller to make the number of users using the quadrature PN sequence equal to that of users using NOT of the sequence, can reduce the envelope variation of transmit signal.

    摘要翻译: 在其中用户二进制信息符号被扩频调制并发送给另一方的直接序列扩频通信系统中,非相干沃尔什QPSK和相干沃尔什QPSK调制方法,其中在一个或多个相位中的同相和正交数据的PN扩展序列 传统的QPSK PN调制方案是由特殊规则索引的沃尔什序列编码,以减少发射信号的包络变化,可以减少发射信号的包络变化。 并且,在其中若干用户二进制信息符号被扩频调制的直接序列扩频通信系统中,每个用户的信息符号被用户指定的不同的沃尔什码覆盖并发送给另一方,QPSK调制方法,其中 用户的正交PN扩展序列的极性由系统控制器控制,使得使用正交PN序列的用户的数量等于使用NOT的序列的用户的数量,可以减少发送信号的包络变化。

    Channel structure with burst pilot in reverse link
    22.
    发明授权
    Channel structure with burst pilot in reverse link 失效
    具有反向链路的突发导频的信道结构

    公开(公告)号:US5920551A

    公开(公告)日:1999-07-06

    申请号:US638130

    申请日:1996-04-26

    CPC分类号: H04B1/707

    摘要: A channel structure for performing a coherent demodulation in reverse links respectively adapted to transmit pilots from a plurality of mobile stations to a base station in a wideband code division multiple access (CDMA) mobile communication system, wherein burst pilots are respectively transmitted from the mobile stations within predetermined time slots so that they can be staggered with reference to the start point of every superframe. Since a pilot burst adjustment is carried out in accordance with the present invention, it is possible to obtain an increased channel capacity as compared to that of the reverse link according to the IS-95 standard scheme. The receiver of the base station can also have a simple and inexpensive structure.

    摘要翻译: 一种用于在反向链路中执行相干解调的信道结构,分别适用于在宽带码分多址(CDMA)移动通信系统中从多个移动台向基站发送导频,其中突发导频分别从移动台 在预定时隙内,使得它们可以参考每个超帧的起始点交错。 由于根据本发明执行导频突发调整,所以与根据IS-95标准方案的反向链路的信道容量相比,可以获得增加的信道容量。 基站的接收机也可以具有简单且便宜的结构。

    Speech path switching control apparatus and method for making
maintenance of speech possible upon occurrence of fault in echo
cancellation
    23.
    发明授权
    Speech path switching control apparatus and method for making maintenance of speech possible upon occurrence of fault in echo cancellation 失效
    语音路径切换控制装置和方法,用于在发生回波消除中的故障时使语音可维持

    公开(公告)号:US5511064A

    公开(公告)日:1996-04-23

    申请号:US325126

    申请日:1994-10-18

    摘要: Speech path switching control apparatus and a method for making maintenance of speech possible even upon occurrence of a fault in echo cancellation. The speech path switching control apparatus includes a time switch for receiving PCM voice data from a space switch through a switch network link and performing time slot interchange with trunk lines, an echo canceller connected to the time switch through a plurality of sub-highways to cancel echoes, an access switching processor for discriminating whether echo cancellation is required for a trunk call allocated with a particular one of the trunk lines and outputting the resultant discrimination signal, and a time switch control processor for controlling the time switch and the echo canceller in response to the discrimination signal from the access switching processor. If the echo cancellation is not required or the echo canceller is abnormal, there is formed a speech path which is not passed through the echo canceller. In the case where the echo cancellation is required and the echo canceller is normal, there is formed a speech path which is passed through the echo canceller.

    摘要翻译: 语音路径切换控制装置以及即使发生回波消除中的故障也可以进行语音维护的方法。 语音路径切换控制装置包括:时间切换,用于通过交换网络链路从空间交换机接收PCM语音数据,并与中继线进行时隙交换;回波消除器,通过多条子公路连接到时间切换以取消 回波,接入切换处理器,用于鉴别分配有特定一条干线的中继线呼叫是否需要回波消除,并输出结果鉴别信号;以及时间切换控制处理器,用于响应于时间切换和回波消除器的控制 对来自接入交换处理器的识别信号。 如果不需要回波消除或回波消除器异常,则形成不通过回波消除器的语音路径。 在需要回波消除并且回波消除器正常的情况下,形成通过回声消除器的语音路径。

    Low profile optical navigation sensor
    25.
    发明申请
    Low profile optical navigation sensor 有权
    低调光学导航传感器

    公开(公告)号:US20070241263A1

    公开(公告)日:2007-10-18

    申请号:US11406085

    申请日:2006-04-18

    IPC分类号: G06M7/00

    CPC分类号: G06F3/0317 G06F3/03543

    摘要: An apparatus having a coherent light source, an optical sensor, and a controller that can be utilized in optical mice and the like is disclosed. The coherent light source emits coherent light in a cone of angles about an illumination direction. The optical sensor includes an array of photodetectors disposed on a die having a surface substantially perpendicular to the illumination direction. The controller compares first and second images recorded by the optical sensor at different times and determines a displacement indicative of the direction and distance the apparatus has moved between the two different times. A portion of the coherent light source is bonded to the die at a location within the array of photodetectors.

    摘要翻译: 公开了一种具有相干光源的装置,光学传感器和可用于光学鼠标等的控制器。 相干光源以围绕照明方向的角度的锥体发射相干光。 光学传感器包括设置在具有基本上垂直于照明方向的表面的管芯上的光电检测器的阵列。 控制器在不同时间比较由光学传感器记录的第一和第二图像,并确定指示装置在两个不同时间之间移动的方向和距离的位移。 相干光源的一部分在光电检测器阵列内的位置处结合到管芯。

    Eliminating mechanical spring with magnetic forces
    26.
    发明申请
    Eliminating mechanical spring with magnetic forces 审中-公开
    用磁力消除机械弹簧

    公开(公告)号:US20060267933A1

    公开(公告)日:2006-11-30

    申请号:US11136883

    申请日:2005-05-25

    IPC分类号: G09G5/08

    CPC分类号: G06F3/03548

    摘要: Magnetic force is used to re-center a puck in a pointing device or similar transducer-based device. A user can apply finger pressure to move the puck laterally away from the central position. The puck has a first magnet system, and the base of the device has a second magnet system. The magnetic repulsion or other magnetic interaction returns the puck to a central position when the user removes the finger pressure.

    摘要翻译: 使用磁力将定位装置或类似的换能器装置中的圆盘重新定中心。 使用者可以施加手指压力以使所述圆盘从所述中心位置横向移动。 圆盘具有第一磁体系统,并且该装置的底座具有第二磁体系统。 当用户去除手指压力时,磁力排斥或其他磁性相互作用将冰球返回到中心位置。

    Method for automatically switching incoming call signal output mode from vibration to ringtone using vibration detection unit in mobile communication terminal
    27.
    发明申请
    Method for automatically switching incoming call signal output mode from vibration to ringtone using vibration detection unit in mobile communication terminal 有权
    使用移动通信终端中的振动检测单元自动将来电信号输出模式从振动切换到铃声的方法

    公开(公告)号:US20060128439A1

    公开(公告)日:2006-06-15

    申请号:US11301712

    申请日:2005-12-12

    申请人: Hun Lee

    发明人: Hun Lee

    IPC分类号: H04B1/38

    CPC分类号: H04M19/04

    摘要: A method for automatically switching an incoming call signal output mode in a mobile communication terminal is disclosed. The method comprises the steps of determining whether or not a present incoming call signal output mode is a vibration mode when receiving incoming call, driving a vibrator to output vibration if it is determined that the present incoming call signal output mode is set to the vibration mode, detecting an intensity of actual vibration of the terminal via a vibration detection sensor when the vibration is output, followed by calculating transfer energy using the intensity of the actual vibration on the terminal, and automatically switching the incoming call signal output mode from the vibration mode to a ringtone mode according to comparison of the calculated transfer energy with a reference value. With the method, a user can easily recognize the incoming call signal.

    摘要翻译: 公开了一种在移动通信终端中自动切换呼入信号输出模式的方法。 该方法包括以下步骤:当接收来话时确定当前呼入信号输出模式是否为振动模式,如果确定当前呼入信号输出模式被设置为振动模式,则驱动振动器输出振动 在振动输出时通过振动检测传感器检测终端的实际振动强度,然后使用终端上的实际振动强度来计算转移能量,并自动切换来自振动模式的呼入信号输出模式 根据计算的转移能量与参考值的比较,进行铃声模式。 使用该方法,用户可以容易地识别来电信号。

    Inside frame of compressor
    28.
    发明申请
    Inside frame of compressor 失效
    压缩机内框

    公开(公告)号:US20050186090A1

    公开(公告)日:2005-08-25

    申请号:US10785417

    申请日:2004-02-25

    摘要: Inside frame of a compressor including a frame body having a pass through hole for a crankshaft, legs formed by bending, and extending from, opposite ends of the frame body, respectively, and component fastening parts formed by extending from the legs in parallel to the frame body, respectively, wherein the component fastening parts have opposite inward extensions, and the frame body is formed such that component fastening to the component fastening parts is possible without interference with the frame body, thereby minimizing a size of the compressor and enhancing an assembly precision and strength.

    摘要翻译: 压缩机的内框架包括具有用于曲轴的通孔的框架体,分别通过弯曲并从框体的相对端部延伸而形成的支脚以及从腿部平行延伸形成的部件紧固部件 框架体,其中部件紧固部件具有相对的向内延伸部,并且框架体形成为使得能够在不干扰框架体的情况下紧固到部件紧固部件的部件,从而使压缩机的尺寸最小化并增强组件 精度和实力。

    Telephone apparatus and method for call transfer function
    29.
    发明申请
    Telephone apparatus and method for call transfer function 审中-公开
    电话传输功能的电话设备及方法

    公开(公告)号:US20050119021A1

    公开(公告)日:2005-06-02

    申请号:US10937978

    申请日:2004-09-09

    IPC分类号: H04M3/54 H04M11/00 H04Q7/20

    CPC分类号: H04M3/54 H04M3/548

    摘要: A telephone apparatus which allows a wired or wireless telephone subscriber to change a call forwarding telephone number at a remote location, and a call transfer method therefor. The call transfer method includes: receiving a call from an external telephone; determining whether a caller of the external telephone is a valid user; receiving a call forwarding telephone number from the caller; and outputting a call transfer request signal and the received call forwarding telephone number to a switching system.

    摘要翻译: 一种允许有线或无线电话用户在远程位置改变呼叫转移电话号码的电话设备及其呼叫转移方法。 呼叫转移方法包括:从外部电话接收呼叫; 确定外部电话的呼叫者是否是有效的用户; 从呼叫者接收呼叫转移电话号码; 并且向交换系统输出呼叫转移请求信号和所接收的呼叫转移电话号码。

    Interference canceling method and apparatus of a multi-mode subtraction type in asynchronous multipath channels of code division multiple access system
    30.
    发明授权
    Interference canceling method and apparatus of a multi-mode subtraction type in asynchronous multipath channels of code division multiple access system 有权
    一种多模式减法类型在码分多址系统的异步多径信道中的干扰消除方法和装置

    公开(公告)号:US06473415B1

    公开(公告)日:2002-10-29

    申请号:US09145240

    申请日:1998-09-01

    IPC分类号: H04B1500

    摘要: The present invention provides an interference canceling method and the apparatus of a multi-mode subtraction type in asynchronous multipath channels of CDMA system, which cancel the interference based on the received signal power of each user (or path), which make the selected fingers keep participating in the subsequent cancellation processing with new (more cleaned) input signal, which do a scale factor's processing and a clipper's processing to make the tentative bit decision, which can select the proper interference canceling method among various interference canceling method according to the total number of users in service, the hardware speed to implement the present method and the power spread of received signals, which repeat the selected interference canceling process recursively with a stage of hardware, which can reduce the number of stage compared with parallel interference cancellation method of the prior art in case that the interference canceling apparatus is made up multi-stages, which do overlappingly a canceling process of the last bit of the multiple bits for efficient operation in the asynchronous channel, which reduce the interference according to the power sequence of each multipath signal instead of the power sequence of each user signal made up multipath signals for efficient operation in multipath channels with unequal powers, which can increase the performance and capacity of the CDMA system by reducing the interference produced by a multiple access process in CDMA system with the asynchronous multipath channels.

    摘要翻译: 本发明提供一种CDMA系统的异步多径信道中的多模式减法类型的干扰消除方法和装置,其基于每个用户(或路径)的接收信号功率消除干扰,这使得所选择的指针保持 参与随后的取消处理,其中新的(更清洁的)输入信号进行缩放因子的处理,并且裁剪器的处理以作出暂定的比特决定,其可以根据总数在各种干扰消除方法中选择适当的干扰消除方法 的用户在使用中,硬件速度来实现本方法和接收信号的功率扩展,其以硬件级递归地重复所选择的干扰消除过程,这可以减少与并行干扰消除方法相比的级数 在干涉消除装置组成的情况下的现有技术 lti级,其重叠地执行多个比特的最后一比特的取消处理,以在异步信道中有效地操作,其根据每个多径信号的功率序列而不是组成的每个用户信号的功率序列来减少干扰 多径信号,用于在具有不等功率的多路径信道中进行有效操作,这可以通过减少由CDMA异步多径信道中的CDMA接入过程产生的干扰来提高CDMA系统的性能和容量。