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1. 发明授权

US5751776A Receiver for a digital communication system 失效
标题翻译：接收机用于数字通信系统
公开(公告)号：US5751776A
公开(公告)日：1998-05-12
申请号：US736767
申请日：1996-10-25
申请人： Haruhiro Shiino , Norio Yamaguchi , Toshimichi Naoi
发明人： Haruhiro Shiino , Norio Yamaguchi , Toshimichi Naoi
IPC分类号： H04L7/04 , H04L27/00 , H04L27/227 , H04L7/02
CPC分类号： H04L27/2273 , H04L2027/0028 , H04L2027/0067 , H04L2027/0069 , H04L7/042
摘要： A receiver to be employed in a digital mobile communication system, more particularly to a receiver for performing complex correlation against a received signal so as to establish and supervise the synchronization with the received signal. The receiver estimates a transmission channel between sending and receiving stations using the received signal and a predetermined reference signal (S11). The phase of the received signal is compensated for using the estimated phase error resulting from the estimation (S12). Complex correlation of the received signal which is compensated for in phase is performed against the reference signal (S13) to obtain a correlation value. The correlation value is compared with a predetermined threshold value (S14). The presence or absence of synchronization between the sending and receiving stations can be detected based on the result of the comparison. In case of detecting synchronization again after the synchronization is once detected, the phase of the received signal is compensated for (S22) using a previously obtained phase variation amount whereby the complex correlation value can be obtained (S23).
摘要翻译：一种在数字移动通信系统中使用的接收机，更具体地涉及一种用于对接收到的信号执行复杂相关以便建立并监督与接收信号的同步的接收机。接收机使用接收到的信号和预定的参考信号来估计发送站和接收站之间的传输信道（S11）。使用由估计得到的估计相位误差补偿接收信号的相位（S12）。对参考信号（S13）进行相位补偿的接收信号的复相关，得到相关值。将相关值与预定阈值进行比较（S14）。可以基于比较的结果来检测发送站和接收站之间是否存在同步。在一旦检测到同步之后再次检测同步的情况下，使用先前获得的相位变化量补偿接收信号的相位（S22），由此可以获得复相关值（S23）。

2. 发明授权

US5533066A Apparatus and method for estimating maximum likelihood sequence using optimum sampling phase 失效
标题翻译：使用最佳采样阶段估计最大似然序列的装置和方法
公开(公告)号：US5533066A
公开(公告)日：1996-07-02
申请号：US190107
申请日：1994-02-02
申请人： Norio Yamaguchi , Haruhiro Shiino
发明人： Norio Yamaguchi , Haruhiro Shiino
IPC分类号： H03M13/41 , H04B3/06 , H04L7/033 , H04L7/04 , H04L25/03 , H03D1/00
CPC分类号： H03M13/6331 , H03M13/41 , H04B3/06 , H04L25/03178 , H04L7/042 , H04L25/03299 , H04L7/0337
摘要： A sampling phase calculating part calculates a complex cross-correlation function; of a part corresponding to a training sequence of an equalizer of each sequence with respect to individual sample value sequences i of a reception signal y(t) which are sampled in a plurality of different sampling phases and selects a sampling phase where the absolute value of the complex cross-correlation functions is maximized, then selects a sampling phase .tau.s where the bit error rate is minimized according to a calculation based on the above selected sampling phase. A sampling processing part samples the reception signals y(t) in the sampling phase .tau.s for use in obtaining estimated values E of a transmission symbol sequence in a Viterbi algorithm processing part (130) and a transmission line estimating part (140), thereby to obtain a transmission symbol sequence with an improved bit error rate and higher accuracy.
摘要翻译：采样相位计算部分计算复杂互相关函数; 对应于每个序列的均衡器的训练序列相对于在多个不同采样相位中采样的接收信号y（t）的各个采样值序列i的部分，并选择其中绝对值复杂的互相关函数被最大化，然后根据基于上述选择的采样相位的计算，选择误码率最小化的采样相位τs。采样处理部分采样采样相位τs中的接收信号y（t），用于获得维特比算法处理部分（130）和传输线估计部分（140）中的传输符号序列的估计值E，由此以获得具有改进的误码率和更高精度的传输符号序列。

3. 发明授权

US5479419A Adaptive maximum likelihood sequence estimator 失效
标题翻译：自适应最大似然序列估计器
公开(公告)号：US5479419A
公开(公告)日：1995-12-26
申请号：US266771
申请日：1994-06-28
申请人： Toshimichi Naoi , Haruhiro Shiino , Yasuo Shoji
发明人： Toshimichi Naoi , Haruhiro Shiino , Yasuo Shoji
IPC分类号： H04B7/005 , H03M13/23 , H04L25/03 , H04L25/08 , G06F11/10
CPC分类号： H04L25/03197
摘要： An adaptive maximum likelihood sequence estimator includes a channel estimator and a Viterbi algorithm processor for estimating the maximum likelihood transmission symbol sequences. The algorithm processor includes a branch metric computer in which common components are found from regularity in computations of coded alphabets of the transmission symbols and are used for all branch metric computation to reduce the total amount of the operations. Such effective computations are implemented by either of hardware and software in accordance with the constitution of the system of the adaptive maximum likelihood sequence estimator.
摘要翻译：自适应最大似然序列估计器包括用于估计最大似然传输符号序列的信道估计器和维特比算法处理器。算法处理器包括分支度量计算机，其中在计算传输符号的编码字母中的规则性中找到公共组件，并且用于所有分支度量计算以减少操作的总量。根据自适应最大似然序列估计器系统的结构，这种有效计算由硬件和软件之一来实现。

4. 发明授权

US5303263A Transmission channel characteristic equalizer 失效
标题翻译：传输通道特性均衡器
公开(公告)号：US5303263A
公开(公告)日：1994-04-12
申请号：US904337
申请日：1992-06-24
申请人： Yasuo Shoji , Haruhiro Shiino , Norio Yamaguchi , Masami Abe
发明人： Yasuo Shoji , Haruhiro Shiino , Norio Yamaguchi , Masami Abe
IPC分类号： H03H21/00 , H04L25/02 , H04L25/03 , H03H7/30
CPC分类号： H03H21/0012 , H04L25/03292 , H04L25/025
摘要： An equalizer including a channel estimator allowing a Viterbi algorithm processor to estimate transmitted symbols accurately, so that the impulse response of a transmission channel may not deviate from the correct one. The equalizer outputs an transmitted symbol sequence estimate having the largest path metric by correcting the channel impulse response by parameter coefficients of the LMS (Least Mean Square) or RLS (Recursive Least Square) algorithm, by compensating for phase fluctuations due to the frequency offset and phase jitter of received signals, or by using a sequence included in an intermediate portion of a TDMA (Time Division Multiple Access) frame format.
摘要翻译：包括允许维特比算法处理器精确估计发射符号的信道估计器的均衡器，使得传输信道的脉冲响应可能不偏离正确的。均衡器通过通过补偿由于频率偏移引起的相位波动来校正由LMS（最小均方）或RLS（递归最小二乘法）算法的参数系数的信道脉冲响应而输出具有最大路径度量的发送符号序列估计，以及接收信号的相位抖动，或通过使用TDMA（时分多址）帧格式的中间部分所包含的序列。

5. 发明授权

US4961160A Linear predictive coding analysing apparatus and bandlimiting circuit therefor 失效
标题翻译：线性预测编码分析装置及其限幅电路
公开(公告)号：US4961160A
公开(公告)日：1990-10-02
申请号：US186576
申请日：1988-04-27
申请人： Shinichi Sato , Atsushi Fukasawa , Takuro Sato , Yasuo Shoji , Haruhiro Shiino , Yukio Suzuki , Hiromi Ando
发明人： Shinichi Sato , Atsushi Fukasawa , Takuro Sato , Yasuo Shoji , Haruhiro Shiino , Yukio Suzuki , Hiromi Ando
IPC分类号： G10L19/04 , G10L19/08
CPC分类号： G10L19/08
摘要： An LPC analyser calculates LPC coefficients using signals bandlimited to half the sampling frequency of the LPC coefficients to be calculated. Thef calculated LPC coefficients are continuous in time scale and free from aliasing distortion. A bandlimiting circuit suitable for use in the LPC analyser is also disclosed.

6. 发明授权

US5680421A Frame synchronization apparatus 失效
标题翻译：帧同步装置
公开(公告)号：US5680421A
公开(公告)日：1997-10-21
申请号：US604832
申请日：1996-02-22
申请人： Haruhiro Shiino , Norio Yamaguchi , Toshimichi Naoi , Ryoichi Miyamoto
发明人： Haruhiro Shiino , Norio Yamaguchi , Toshimichi Naoi , Ryoichi Miyamoto
IPC分类号： H04L7/04 , H04L7/08 , H04L7/00
CPC分类号： H04L7/042 , H04L7/08
摘要： A frame synchronization apparatus is applied to the TDMA (Time Division Multiple Access) communication system, particularly, where a plurality of transmission rates are available. The frame synchronization apparatus calculates correlations between sampled sequences of a received signal and an assigned sync sequence during the longest or shortest frame period in the plurality of transmission rates. The apparatus stores positions where the correlations exceed a given threshold. Then, the apparatus sets a search gate at a position after a lapse of the longest or shortest frame period from each of those positions. The apparatus calculates correlations between the sync sequence and sampled sequences of the received signal for all the search gates. The actual transmission rate is determined from the plurality of transmission rates based on a time interval of positions where the correlations beyond a second threshold were detected. Synchronization is thus established.
摘要翻译：帧同步装置被应用于TDMA（时分多址）通信系统，特别是在多个传输速率可用的情况下。帧同步装置在多个传输速率的最长或最短帧周期期间，计算接收信号的采样序列与分配的同步序列之间的相关性。该装置存储相关性超过给定阈值的位置。然后，该设备在从这些位置中的每个位置经过最长或最短帧周期之后的位置处设置搜索门。该装置计算所有搜索门的同步序列和接收信号的采样序列之间的相关性。基于检测到超过第二阈值的相关性的位置的时间间隔，从多个传输速率确定实际传输速率。因此建立同步。

7. 发明申请

US20100229054A1 WIRELESS COMMUNICATION APPARATUS 有权
标题翻译：无线通信设备
公开(公告)号：US20100229054A1
公开(公告)日：2010-09-09
申请号：US12718318
申请日：2010-03-05
申请人： Yoshifumi Uchiyama , Haruhiro Shiino
发明人： Yoshifumi Uchiyama , Haruhiro Shiino
IPC分类号： G06F11/00
CPC分类号： H04L1/0013 , H04L1/0016 , H04L1/0019 , H04L1/0059 , H04W52/143 , H04W52/241 , H04W52/247 , H04W52/248
摘要： A wireless communication apparatus performs data communication with a base station using a plurality of transport channels (TRCHs) that share a frequency band, and selects a reference TRCH using coding schemes of data to be transmitted using the TRCHs. After that, the wireless communication apparatus performs outer loop control so that a block error rate (BLER) of the data to be transmitted using the reference TRCH is set to a target BLER.
摘要翻译：无线通信装置使用共享频带的多个传输信道（TRCH）与基站进行数据通信，并且使用使用TRCH发送的数据的编码方案来选择参考TRCH。之后，无线通信装置进行外部环路控制，使得使用基准TRCH发送的数据的块差错率（BLER）被设定为目标BLER。

8. 发明授权

US06452936B1 Spread-spectrum communication apparatus with adaptive frame configuration 有权
标题翻译：具有自适应帧配置的扩频通信装置
公开(公告)号：US06452936B1
公开(公告)日：2002-09-17
申请号：US09170116
申请日：1998-10-13
申请人： Haruhiro Shiino
发明人： Haruhiro Shiino
IPC分类号： H04J1300
CPC分类号： H04L1/0007 , H04L1/0017 , H04L1/0025
摘要： A spread-spectrum communication apparatus transmits and receives packets of data preceded by reference signals used in demodulating the packets of data. A control unit in the communication apparatus estimates channel conditions, and varies the length of the transmitted packets, hence the intervals between reference signals, using longer packets under better channel conditions. Configuration information indicating the packet length may also be transmitted. Excessive overhead can thus be avoided without impairing the accuracy of channel estimates used in demodulating the received data.
摘要翻译：扩频通信装置发送和接收在解调数据包之前使用的参考信号之前的数据分组。通信装置中的控制单元估计信道条件，并且在更好的信道条件下使用更长的分组来改变发送分组的长度，从而改变参考信号之间的间隔。也可以发送表示分组长度的配置信息。因此可以避免过多的开销，而不损害在解调接收到的数据时使用的信道估计的准确性。

9. 发明授权

US6163566A Spread spectrum transmitter, spread spectrum receiver, and spread spectrum communications system 有权
标题翻译：扩频发射机，扩频接收机和扩频通信系统
公开(公告)号：US6163566A
公开(公告)日：2000-12-19
申请号：US165159
申请日：1998-10-02
申请人： Haruhiro Shiino
发明人： Haruhiro Shiino
IPC分类号： H04J13/00 , H04B1/04 , H04B1/707 , H04B7/24 , H04W88/02 , A61F2/06 , H04L27/30
CPC分类号： H04B1/707
摘要： A spread spectrum communications system is provided for reducing the number of required matched filters to simplify the configuration associated with the reception. In a spread spectrum transmitter, a plurality of spread channel signals are synthesized by shifting their respective phases by a time sufficiently shorter than one symbol period. In a spread spectrum receiver, a plurality of spread code sequences are set one by one at a tap of a single matched filter in one symbol period in a time division manner to recover transmitted data.
摘要翻译：提供扩频通信系统以减少所需的匹配滤波器的数量，以简化与接收相关联的配置。在扩频发射机中，通过将它们各自的相位移位足够短于一个符号周期的时间来合成多个扩展信道信号。在扩展频谱接收机中，在一个符号周期中以时分方式在单个匹配滤波器的抽头处逐个地设置多个扩展码序列，以恢复发送的数据。

10. 发明授权

US5867531A Maximum likelihood sequence estimator and maximum likelihood sequence estimating method 失效
标题翻译：最大似然序列估计和最大似然序列估计方法
公开(公告)号：US5867531A
公开(公告)日：1999-02-02
申请号：US604833
申请日：1996-02-22
申请人： Haruhiro Shiino , Norio Yamaguchi , Toshimichi Naoi
发明人： Haruhiro Shiino , Norio Yamaguchi , Toshimichi Naoi
IPC分类号： H03H21/00 , H03M13/23 , H03M13/41 , H04B3/04 , H04B7/005 , H04L1/00 , H04L25/03 , H04L25/08 , H04L5/12
CPC分类号： H03M13/6331 , H03M13/41 , H04L1/0054 , H04L25/03318
摘要： When a maximum likelihood sequence estimator according to the present invention is used as an equalizer or the like for a receiver, a Viterbi algorithm processing portion 331 in the maximum likelihood sequence estimator estimates a transmission symbol Ea.sub.n with a reception signal y.sub.n and an estimated impulse response {Eh.sub.k } corresponding to Viterbi algorithm so as to estimate a maximum likelihood sequence corresponding to a soft decision regardless of a modulating method. A transmission logic code decoder 34 converts a transmission symbol Ea.sub.n into hard decision data Eb.sub.m with a value "1" or "0". An envelope detector 333 that is a transmission line quality evaluating means detects an envelope level p.sub.n of the reception signal y.sub.n. A soft decision value converting portion 334 converts the envelope level p.sub.n received from the envelope detector 333 corresponding to the value "1" or "0" of the hard decision data Ebm received from the transmission logic code decoder 34 so as to obtain soft decision value output data q.sub.m.
摘要翻译：当根据本发明的最大似然序列估计器用作接收机的均衡器等时，最大似然序列估计器中的维特比算法处理部分331用接收信号yn和估计的脉冲响应来估计发送符号Ean {Ehk}对应于维特比算法，以便估计与软决策相对应的最大似然序列，而不管调制方法如何。传输逻辑代码解码器34将传输符号Ean转换成具有值“1”或“0”的硬判决数据Ebm。作为传输线质量评估装置的包络检测器333检测接收信号yn的包络电平pn。软决策值转换部分334将从包络检测器333接收到的包络电平pnn对应于从传输逻辑码解码器34接收的硬判决数据Ebm的值“1”或“0”转换，以获得软判决值输出数据qm。

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