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312 条记录 (耗时 0.031 秒)

    Wireless position measurement method and wireless position measurement system
    31.
    发明授权
    Wireless position measurement method and wireless position measurement system 失效
    无线位置测量方法和无线位置测量系统

    公开(公告)号：US07266098B2

    公开(公告)日：2007-09-04

    申请号：US10956115

    申请日：2004-10-04

    申请人： Atsushi Ogino ,  Ryota Yamasaki ,  Katsuhiko Tsunehara ,  Naoto Matsuzawa ,  Hideya Suzuki ,  Takashi Yano

    发明人： Atsushi Ogino ,  Ryota Yamasaki ,  Katsuhiko Tsunehara ,  Naoto Matsuzawa ,  Hideya Suzuki ,  Takashi Yano

    IPC分类号： H04Q7/00 ,  H04Q7/20

    CPC分类号： H04W64/00 ,  H04W84/12

    摘要： A method and system for detecting the position of a mobile unit efficiently and with high precision in a multipath environment. A wireless position detection system made up of a mobile station containing a wireless communication means to allow sending and receiving multiple to and from mutually different antenna positions and, a base station for performing wireless communication with mobile stations containing a wireless communication means and, multiple wireless receivers for receiving each of the multiple signals sent by the wireless communication means between the base stations and, a server for detecting the position of the mobile station from each wireless receiver and from the position of the base station, and the time relating to received signals measured by the multiple wireless receivers.

    摘要翻译： 一种用于在多路径环境中有效且高精度地检测移动单元的位置的方法和系统。 一种由包含无线通信装置的移动站组成的无线位置检测系统，用于允许从互相不同的天线位置发送和接收多个天线;以及基站，用于与包含无线通信装置的移动站进行无线通信，以及多个无线 用于接收由基站之间的无线通信装置发送的多个信号中的每一个的接收机，以及用于从每个无线接收机检测移动台的位置和从基站的位置检测移动台的位置的服务器以及与接收信号有关的时间 由多个无线接收机测量。

    Method of mobile communication and apparatus therefor
    35.
    发明申请
    Method of mobile communication and apparatus therefor 有权
    移动通信方法及其设备

    公开(公告)号：US20070086375A1

    公开(公告)日：2007-04-19

    申请号：US11637044

    申请日：2006-12-12

    申请人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

    发明人： Riaz Esmailzadeh ,  Takashi Yano ,  Nobukazu Doi

    IPC分类号： H04Q7/00

    CPC分类号： H04W72/1278 ,  H04B1/707 ,  H04B7/2628 ,  H04W74/008 ,  H04W74/04 ,  H04W74/0833

    摘要： In order to accomplish efficient communication of data between a base station and a plurality of mobile terminals, particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.

    摘要翻译： 为了在基站和多个移动终端之间实现数据的有效通信，将特定的正交码从移动台发送到基站，作为指示要发送的数据的存在的警报信号。 基站检查警报信号中是否包含特定正交码，并且当在警报信号中检测到特定的正交码时，表示检测到的正交码的信息和用于从移动终端向基站发送数据的时间表是 从基站发送到移动终端作为对警报信号的警报响应。 当表示用于警报信号的正交码的信息被包含在从基站发送到移动终端的警报响应中时，等待发送的数据根据​​数据传输时间表从移动终端发送到基站 警报响应。

    Adaptive modulation method and coding rate control method
    37.
    发明申请
    Adaptive modulation method and coding rate control method 失效
    自适应调制方法和编码速率控制方法

    公开(公告)号：US20060165190A1

    公开(公告)日：2006-07-27

    申请号：US11066185

    申请日：2005-02-25

    申请人： Satoshi Tamaki ,  Takashi Yano ,  Seishi Hanaoka ,  Toshiyuki Saito

    发明人： Satoshi Tamaki ,  Takashi Yano ,  Seishi Hanaoka ,  Toshiyuki Saito

    IPC分类号： H04L5/12

    CPC分类号： H04L1/1671 ,  H04L1/0003 ,  H04L1/0023 ,  H04L1/1812

    摘要： In a radio communication system, transmitter and receiver stations share information on a maximum number of bits communicated per symbol. The transmitter station encodes a signal with sufficient error correcting capabilities to create a codeword. The transmitter station allocates the bits from the codeword to each symbol, modulates the symbols using a modulation type which processes symbols each having a number of bits equal to or smaller than the maximum number of bits per symbol, and transmits the modulated symbols. The receiver station demodulates the symbols using a modulation type which processes a larger number of bits per symbol as the transmission path quality is higher from among modulation types which process symbols having a number of bits equal to or smaller than the maximum number of bits per symbol.

    摘要翻译： 在无线电通信系统中，发射机和接收机站共享关于每个符号传送的最大比特数的信息。 发射机站对具有足够纠错能力的信号进行编码以产生码字。 发送站从码字分配每个符号的比特，使用调制类型对符号进行调制，该调制类型处理每个符号的数目等于或小于每个符号的最大比特数的符号，并发送调制符号。 接收站使用调制类型来解调符号，因为随着传输路径质量越高，处理具有等于或小于每个符号的最大比特数的比特数的符号的调制类型中，每个符号处理较大数量的比特 。

    Software defined radio system
    38.
    发明申请
    Software defined radio system 失效
    软件定义无线电系统

    公开(公告)号：US20060045212A1

    公开(公告)日：2006-03-02

    申请号：US11025944

    申请日：2005-01-03

    申请人： Hirotake Ishii ,  Katsuhiko Tsunehara ,  Takashi Yano

    发明人： Hirotake Ishii ,  Katsuhiko Tsunehara ,  Takashi Yano

    IPC分类号： H04L27/06

    CPC分类号： H04L27/0008 ,  H04L7/04

    摘要： The invention provides a technique that saves rate conversion accompanying complicated calculations and shares an analog filter for anti-aliasing in a sampling device. The sampling device employs an anti-alias filter having a fixed cutoff frequency, an A/D converter and a D/A converter each having a clock signal input, which are capable of varying a sampling frequency, and a PLL circuit capable of varying the frequency of a clock signal; and it sets the sampling frequency not lower than an integral multiple of a signal bandwidth and double the cutoff frequency for sampling.

    摘要翻译： 本发明提供一种技术，其可以节省伴随复杂计算的速率转换，并且在采样装置中共享用于抗锯齿的模拟滤波器。 采样装置采用具有固定截止频率的抗混叠滤波器，具有能够改变采样频率的时钟信号输入的A / D转换器和D / A转换器，以及能够改变采样频率的PLL电路 时钟信号的频率; 并且将采样频率设置为不低于信号带宽的整数倍，并将采样的截止频率加倍。

    Mobile communication method using CDMA multiplexing technique and mobile communication system
    39.
    发明授权
    Mobile communication method using CDMA multiplexing technique and mobile communication system 失效
    使用CDMA复用技术和移动通信系统的移动通信方法

    公开(公告)号：US07006475B1

    公开(公告)日：2006-02-28

    申请号：US09786685

    申请日：1999-12-21

    申请人： Toshiro Suzuki ,  Takashi Yano ,  Takaki Uta ,  Katsuhiko Tsunehara ,  Hisato Iwai

    发明人： Toshiro Suzuki ,  Takashi Yano ,  Takaki Uta ,  Katsuhiko Tsunehara ,  Hisato Iwai

    IPC分类号： H04B7/216

    CPC分类号： H04B7/2618

    摘要： On the side of a mobile station, interference of a perch channel with call control information or a traffic channel is reduced, realizing stable communication. In a method of CDMA communication in which communication is made through the traffic channel for transmitting user data and the perch channel for transmitting a spreading code used for demodulation of the user data, the traffic channel has a call control channel subjected to the time division multiplex, and that call control channel and a part of the perch channel, which is non-orthogonal to the call control channel, are arranged not to overlap with each other in a time base.

    摘要翻译： 在移动台侧，导频信道与呼叫控制信息或业务信道的干扰减少，实现稳定的通信。 在通过用于发送用户数据的业务信道进行通信并且用于发送用于解调用户数据的扩展码的导频信道的CDMA通信的方法中，业务信道具有经过时分复用的呼叫控制信道 ，并且该呼叫控制信道和与呼叫控制信道非正交的导频信道的一部分被布置为在时基上彼此不重叠。

    Peak factor reduction device
    40.
    发明授权
    Peak factor reduction device 失效
    峰值因数降低装置

    公开(公告)号：US06999733B2

    公开(公告)日：2006-02-14

    申请号：US10412247

    申请日：2003-04-14

    申请人： Kazuyuki Hori ,  Takashi Yano

    发明人： Kazuyuki Hori ,  Takashi Yano

    IPC分类号： H04B1/04

    CPC分类号： H04B1/707 ,  H04B2201/70706

    摘要： In the conventional peak factor reduction technique, since the signal has been changed over broad time width before and behind the peak amplitude, the deterioration in signal quality has been great. Through the use of a compensating signal having impulse property that is generated on the peak amplitude, subtraction from the peak amplitude will be performed. Thereby, since it is possible to reduce the deterioration in signal quality that occurs when reducing the peak factor, the peak factor reduction effect can be further enhanced in the same deterioration in signal quality as the conventional one.

    摘要翻译： 在传统的峰值因子降低技术中，由于信号已经在峰值幅度之前和之后的宽时间宽度上被改变，信号质量的恶化已经很大。 通过使用具有在峰值振幅上产生的脉冲特性的补偿信号，将从峰值振幅进行减法。 因此，由于可以减少在降低峰值因子时发生的信号质量的劣化，因此与以往相同的信号质量劣化可以进一步提高峰值因数降低效果。