会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • Wireless Communication System, Wireless Communication Method, and Communication Apparatus
    • 无线通信系统,无线通信方式和通信装置
    • US20080194211A1
    • 2008-08-14
    • US11720379
    • 2005-11-29
    • Naoki Suehiro
    • Naoki Suehiro
    • H04B1/40
    • H04J13/10H04L23/02
    • A wireless communication system includes plural wireless communication apparatuses. Each wireless communication apparatus includes a transmitter 10 including a spread unit 14 for spreading a transmission sequence to be transmitted with a predetermined spread sequence, a pseudo periodic sequence generating unit 13 for generating a periodic sequence in which the transmission sequence to be transmitted is repeated a predetermined number of times, and a modulating unit 15 for modulating, with a carrier frequency, the transmission sequence to be transmitted. Each wireless communication apparatus includes a receiver 20 including a demodulating unit 22 configured to demodulate a reception wave modulated with the carrier frequency and a despreading unit 27 for despreading the spread signal sequence. The transmission sequence to be transmitted includes a pilot signal used for measuring multipath properties and a transmission data signal.
    • 无线通信系统包括多个无线通信装置。 每个无线通信装置包括:发射机10,包括扩展单元14,用于扩展要以预定扩展序列发送的发送序列;伪周期序列生成单元13,用于生成其中要发送的发送序列重复的周期性序列 以及用于以载波频率调制要发送的发送序列的调制单元15。 每个无线通信装置包括:接收机20,包括:解调单元22,被配置为解调用载波频率调制的接收波;解扩单元27,用于解扩展扩展信号序列。 要发送的发送序列包括用于测量多径性质的导频信号和发送数据信号。
    • 5. 发明申请
    • PARALLEL SAMPLING DEVICE,PARALLEL SAMPLING METHOD,RECEIVING DEVICE, AND RECEIVING METHOD
    • 平行采样装置,并行采样方法,接收装置和接收方法
    • US20100177849A1
    • 2010-07-15
    • US12601929
    • 2008-06-19
    • Naoki Suehiro
    • Naoki Suehiro
    • H04L27/00H04L7/00
    • H04L27/34G11C27/02
    • A parallel sampling device comprises a memory that stores the values of the sampling function (Sin πt/πt), a low pass filter, sampling means that samples a signal, which has passed through low pass filter, at a sampling period of Ts, and parallel sampling means provided in a stage following the sampling means. The parallel sampling means generates parallel sampled values at an interval of the sampling period Ts/N(N is a natural number equal to or larger than 2) based on sampled values obtained by the sampling means and the values of the sampling function stored in the memory. This configuration allows parallel sampling to be performed easily even if the frequency is high or the sampling period of parallel sampling is narrow.
    • 并行采样装置包括存储器,其存储采样功能(Sin&pgr; t /&pgr; t)的值,低通滤波器,采样装置,其以采样周期对已通过低通滤波器的信号进行采样 的Ts和平行采样装置,设置在采样装置之后的阶段。 并行采样装置基于采样装置获得的采样值和存储在采样周期中的采样函数的值,以采样周期Ts / N(N为等于或大于2的自然数)的间隔产生并行采样值 记忆。 该配置允许即使频率高或并行采样的采样周期较窄也能够容易地执行并行采样。
    • 7. 发明申请
    • TRANSMITTING/RECEIVING METHOD, METHOD OF GENERATION OF SIGNAL SEQUENCES HAVING NO PERIODIC CORRELATION, AND COMMUNICATION DEVICE
    • 发送/接收方法,不产生周期性相关的信号序列的生成方法和通信设备
    • US20090016210A1
    • 2009-01-15
    • US11815241
    • 2006-02-01
    • Naoki Suehiro
    • Naoki Suehiro
    • H04J11/00
    • H04J13/00H04J13/107
    • In a transmitting/receiving method, a transmitter device transmits a vertical polarization signal and a horizontal polarization signal, and a receiver device receives the vertical and horizontal polarization signals transmitted by the transmitter device. The vertical polarization signal includes a vertical polarization ID signal which identifies vertical polarization and a vertical polarization data signal which is a data signal. The horizontal polarization signal includes a horizontal polarization ID signal which identifies horizontal polarization and a horizontal polarization data signal which is a data signal. The vertical polarization ID signal and the horizontal polarization ID signal are transmitted simultaneously. The vertical polarization ID signal, the horizontal polarization ID signal, and the vertical polarization data signal are generated from signal sequences having orthogonal correlation. The vertical polarization ID signal, the horizontal polarization ID signal, and the horizontal polarization data signal are generated from signal sequences having orthogonal correlation.
    • 在发送/接收方法中,发送装置发送垂直极化信号和水平偏振信号,接收装置接收由发送装置发送的垂直和水平极化信号。 垂直极化信号包括识别垂直极化的垂直偏振ID信号和作为数据信号的垂直极化数据信号。 水平极化信号包括识别水平极化的水平极化ID信号和作为数据信号的水平偏振数据信号。 同时发送垂直极化ID信号和水平极化ID信号。 从正交相关的信号序列生成垂直极化ID信号,水平极化ID信号和垂直极化数据信号。 从正交相关的信号序列生成垂直极化ID信号,水平极化ID信号和水平极化数据信号。
    • 9. 发明授权
    • CDMA communications system using multiple spreading sequences
    • CDMA通信系统使用多个扩展序列
    • US07245650B2
    • 2007-07-17
    • US10471671
    • 2002-03-07
    • Noriyoshi KuroyanagiNaoki SuehiroSatoru OzawaMitsuhiro TomitaKohei OtakeMasakazu Takahashi
    • Noriyoshi KuroyanagiNaoki SuehiroSatoru OzawaMitsuhiro TomitaKohei OtakeMasakazu Takahashi
    • H04B1/00
    • H04J13/00H04J13/10
    • This invention provides techniques for a CDMA system having high spectrum efficiency with low transmit power. Each transmitter comprises means of selecting some core-sequences out of multiple sequences to make them convey plural data, means of producing an enveloped selected sequence with such a method as to arrange as guard sequences to a repeated sequence made by repeating each of the selected core-sequences, means of modulating a user specific orthogonal carrier frequency by the enveloped selected sequence to produce a transmit-symbol, and means of transmitting the transmit-symbols. And a receiver comprises means of demodulating a receive-symbol with one of the user specific carrier frequencies to produce a base-band receive-symbol, means of separating respective components corresponding to the sequences selected by the user, by analyzing the base-band receive-symbol with a matrix composed of a channel response vector from the user to the receiver to detect plural data on the components.
    • 本发明提供了具有低发射功率的高频谱效率的CDMA系统的技术。 每个发射机包括从多个序列中选择一些核心序列以使它们传送多个数据的装置,用于产生包络的所选择的序列的装置,其方法是将重复的序列排列成通过重复每个所选择的核心 序列,通过包络的所选序列调制用户特定的正交载波频率以产生发射符号的装置,以及发送发射符号的装置。 并且接收机包括用用户特定载波频率之一解调接收符号以产生基带接收符号的装置,通过分析基带接收,分离对应于用户选择的序列的各个分量的装置 符号,其具有由从用户到接收器的信道响应向量组成的矩阵,以检测组件上的多个数据。