公开(公告)号：US20060245514A1

公开(公告)日：2006-11-02

申请号：US10565380

申请日：2004-07-26

申请人： Genichiro Ota ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

发明人： Genichiro Ota ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

IPC分类号： H04L27/02 ,  H04L27/04 ,  H03D1/24

CPC分类号： H04L27/2332 ,  H03C1/60 ,  H03D1/24 ,  H04B1/68 ,  H04L27/04 ,  H04L27/06 ,  H04L27/2053 ,  H04L27/2338

摘要： A modulation apparatus is disclosed that enables great improvements in signal transmission rate in a limited frequency band as compared with conventional modulation schemes. Modulation apparatus 100 has first and second frequency-increasing SSB modulators 110 and 120. The modulators 110 and 120 are configured to have respective carrier frequencies with a difference by a frequency corresponding to the reciprocal of the symbol rate (i.e. fundamental frequency of the input symbol). Adder 130 combines a LSB signal obtained from the SSB modulator 120 set for a higher carrier frequency, and a USB signal obtained from the SSB modulator 110 set for a lower carrier frequency to obtain a modulation signal.

摘要翻译： 公开了一种调制装置，与传统的调制方案相比，能够在有限的频带内实现极大的改善信号传输速率。 调制装置100具有第一和第二增频SSB调制器110和120。 调制器110和120被配置为具有相差载波频率，其频率对应于符号速率的倒数（即，输入符号的基频）。 加法器130组合从针对较高载波频率设置的SSB调制器120获得的LSB信号和从针对较低载波频率设置的SSB调制器110获得的USB信号，以获得调制信号。

公开(公告)号：US07003050B2

公开(公告)日：2006-02-21

申请号：US10182569

申请日：2001-12-27

申请人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

发明人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

IPC分类号： H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC分类号： H04L1/1845 ,  H04B1/707 ,  H04L1/0003 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1893 ,  H04L27/3488 ,  H04L2001/0098

摘要： P/S conversion section 302 performs parallel/serial conversion of data sequences #1 through #4 input in parallel, in accordance with control by assignment control section 303, so that data to a higher-priority communication terminal is assigned to an upper bit in one symbol; M-ary modulation section 304 performs M-ary modulation on the data that has been subject to parallel/serial conversion; S/P conversion section 305 converts a symbol that has been subject to M-ary modulation to parallel form; multipliers 306-1 through 306-4 execute spreading processing on the symbols output in parallel; multiplexing section 309 multiplexes the symbol that has been subject to spreading processing with an assignment notification signal that has been subject to spreading processing; and radio transmitting section 310 transmits the multiplex signal.

摘要翻译： P / S转换部分302根据分配控制部分303的控制对并行输入的数据序列＃1至＃4进行并行/串行转换，使得到较高优先级的通信终端的数据被分配给 一个符号 M元调制部304对已经进行并行/串行转换的数据执行M进制调制; S / P转换部分305将已经被M进制调制的符号转换成并行形式; 乘法器306-1至306-4对并行输出的符号执行扩展处理; 多路复用部分309将已经进行扩展处理的符号与已经进行扩展处理的分配通知信号进行复用; 无线发送部310发送多路复用信号。

公开(公告)号：US06931238B1

公开(公告)日：2005-08-16

申请号：US09830993

申请日：2000-09-18

申请人： Junichi Aizawa ,  Osamu Kato ,  Mitsuru Uesugi ,  Takeshi Akiyama

发明人： Junichi Aizawa ,  Osamu Kato ,  Mitsuru Uesugi ,  Takeshi Akiyama

IPC分类号： H01Q3/24 ,  H01Q21/28 ,  H04B1/04 ,  H04B7/06 ,  H04B7/12 ,  H04J3/00 ,  H03C7/02

CPC分类号： H04B7/0604 ,  H04B7/12

摘要： Radio section 103 multiplies modulated transmission signals A to D respectively by a carrier with a frequency of fA, fB, fC or fD, thereby performs the frequency conversion, and outputs the resultant signals to switch 104. Switch 104 switches between frequency conversion sections fA to fD and between antennas A to D to connect, and timing control section 105 outputs a timing control signal to switching control section 107 at time intervals for which timer 106 is preset. Switching control section 107 controls the switching of switch 104 according to switching patterns which are preset in switching pattern storage section 108 and which are each indicative of a connection relationship between antennas A to D and frequency conversion sections fA to fD.

摘要翻译： 无线电部分103通过频率fA，fB，fC或fD的载波分别调制发射信号A至D，从而进行频率转换，并将结果信号输出到开关104。 开关104在频率转换部分fA至fD之间以及天线A至D之间切换以连接，并且定时控制部分105以预定定时器106的时间间隔向切换控制部分107输出定时控制信号。 切换控制部107根据在切换模式存储部108中预先设定的切换模式来控制开关104的切换，各切换模式各自表示天线A〜D与频率转换部fA〜fD的连接关系。

公开(公告)号：US06603980B1

公开(公告)日：2003-08-05

申请号：US09529871

申请日：2000-04-20

申请人： Keiichi Kitagawa ,  Mitsuru Uesugi ,  Kazuyuki Miya ,  Makis Kasapidis

发明人： Keiichi Kitagawa ,  Mitsuru Uesugi ,  Kazuyuki Miya ,  Makis Kasapidis

IPC分类号： H04B700

CPC分类号： H04W52/223 ,  H04W52/04 ,  H04W52/24 ,  H04W52/283 ,  H04W52/288 ,  H04W52/36 ,  H04W52/44 ,  H04W52/54

摘要： Received quality detecting section 108 detects a received quality, bit determining section 111 determines whether a TPC bit is 0 or 1, amplitude reading section 112 reads a ratio of an amplitude of a signal other than the TPC bit and an amplitude of the TPC bit, accumulating section 113 determines an increase or decrease of transmit power and an amount of the increase and decrease of the transmit power using a symbol of the TPC bit for the increase or decrease, and an amplitude ratio for the amount of the increase and decrease to instruct to transmission amplifier 104, and multiplying section 114 multiplies the amplitude of the signal other than the TPC bit by a correction value corresponding to the received quality to determine the amplitude of the TPC bit.

摘要翻译： 接收质量检测部分108检测接收质量，比特确定部分111确定TPC比特是0还是1，振幅读取部分112读取TPC比特之外的信号的幅度与TPC比特的振幅的比率， 累加部113使用TPC比特的符号来增加或减少发送功率的增加或减小量以及发送功率的增加和减少的量，以及增加和减少的量的幅度比来指示 到发送放大器104，并且乘法部114将除了TPC比特之外的信号的幅度乘以与接收质量对应的校正值，以确定TPC比特的幅度。

公开(公告)号：US06424618B1

公开(公告)日：2002-07-23

申请号：US09091422

申请日：1998-06-24

申请人： Mitsuru Uesugi ,  Taku Nagase ,  Osamu Kato

发明人： Mitsuru Uesugi ,  Taku Nagase ,  Osamu Kato

IPC分类号： H04J1300

CPC分类号： H04J13/18 ,  H04J13/004 ,  H04J13/12

摘要： The present invention relates to a code generating method for combining an orthogonal code for CDMA having a specific spreading factor and its polarity inverted spreading code to generate another spreading code having a larger spreading factor than that of the spreading code. And the present invention relates to a code selecting method for combining an orthogonal code for CDMA having a specific spreading factor and its polarity inverted spreading code to generate another spreading code having a larger spreading factor than that of the spreading code, then to assign the generated orthogonal code for a user in order of users having an orthogonal code of small spreading factor.

摘要翻译： 本发明涉及一种用于组合具有特定扩展因子的CDMA正交码及其极性反转扩展码的码产生方法，以产生具有比扩频码扩频率更大的扩展因子的另一扩展码。 本发明涉及一种编码选择方法，用于组合具有特定扩展因子的CDMA的正交码及其极性反转的扩展码，以产生具有比扩展码更大的扩展因子的另一扩展码，然后分配所生成的 正交码的用户按照具有小扩频因子的正交码的用户的顺序。

公开(公告)号：US5968201A

公开(公告)日：1999-10-19

申请号：US834838

申请日：1997-04-10

申请人： Kazuo Shida ,  Mitsuru Uesugi

发明人： Kazuo Shida ,  Mitsuru Uesugi

IPC分类号： G11B20/18 ,  H03M13/00 ,  H03M13/29 ,  H03M13/37 ,  H04B14/04 ,  G06F11/10 ,  H03M13/12

CPC分类号： H03M13/2927 ,  H03M13/00 ,  H03M13/23 ,  H03M13/29 ,  H03M13/41

摘要： Received data representing voice information is subjected to Viterbi decoding to correct an error in the received data. Thereby, the received data is decoded into second data. A path metric is calculated to determine the second data during the Viterbi decoding. A decision is made as to whether or not at least one error is present in the second data by referring to a cyclic redundancy check code in the second data. The second data is discarded when it is decided that at least one error is present in the second data. A decision is made as to whether or not the calculated path metric exceeds a threshold value. The second data is discarded when it is decided that the path metric exceeds the threshold value. The second data is converted into sound when it is decided that at least one error is not present in the second data and that the path metric does not exceed the threshold value.

摘要翻译： 代表语音信息的接收数据进行维特比解码以校正接收到的数据中的错误。 由此，接收的数据被解码为第二数据。 计算路径度量以在维特比解码期间确定第二数据。 通过参考第二数据中的循环冗余校验码来决定第二数据中是否存在至少一个错误。 当确定在第二数据中存在至少一个错误时，丢弃第二数据。 作出关于所计算的路径度量是否超过阈值的决定。 当确定路径度量超过阈值时，第二数据被丢弃。 当确定在第二数据中不存在至少一个错误并且路径度量不超过阈值时，第二数据被转换成声音。

公开(公告)号：US5563911A

公开(公告)日：1996-10-08

申请号：US395828

申请日：1995-02-28

申请人： Mitsuru Uesugi ,  Kazuhisa Tsubaki ,  Kouichi Honma

发明人： Mitsuru Uesugi ,  Kazuhisa Tsubaki ,  Kouichi Honma

IPC分类号： H04B7/005 ,  H03H17/00 ,  H03H17/02 ,  H03H17/04 ,  H03H17/06 ,  H03H21/00 ,  H04B3/06 ,  H04L25/03

CPC分类号： H04B7/005 ,  H03H17/0288 ,  H04L25/03057 ,  H04L2025/03573

摘要： In an equalizer including a plurality of delay elements, a plurality of weighting elements and an adder, the impulse response of a signal transmission channel is estimated to selectively switch over a plurality of selector switches associated with the inputs and outputs of the respective delay elements, thereby selectively changing the combination of the delay elements and the weighting elements transmitting an input signal from the channel to the adder and also changing the combination of the adder and a delay element feeding back the output of the discriminator to the adder. Thus, the number of required taps of the equalizer can be reduced, so that the power consumption and size of the equalizer can be reduced.

公开(公告)号：US5524282A

公开(公告)日：1996-06-04

申请号：US672938

申请日：1991-03-21

申请人： Kouichi Honma ,  Mitsuru Uesugi ,  Kazuhisa Tsubaki

发明人： Kouichi Honma ,  Mitsuru Uesugi ,  Kazuhisa Tsubaki

IPC分类号： H04J3/00 ,  H04L7/04 ,  H04B17/00

CPC分类号： H04L7/04

摘要： An apparatus and a method utilized in the field of time division multiplex digital communications or the like for detecting the place of burst signals. A transmitter transmits a carrier wave modulated by message data signals having a reference signal inserted between them, and a receiver receives the transmitted modulated carrier wave. In the receiver, the received modulated carrier wave is demodulated by both a sine wave and a cosine wave each having an angular frequency deviation .DELTA..omega. relative to the received carrier waved, the phase difference between the demodulated message data signals and the modulated reference signal is detected, the time-based change of the detected phase difference is approximated by a function of low order, the error between the phase of the received reference signal and that computed on the basis of the approximation function is computed, and a burst place detection signal is generated when the computed error is smaller than a predetermined threshold value.

摘要翻译： 在时分复用数字通信等领域中使用的用于检测突发信号的位置的装置和方法。 发射机发送由具有插入在它们之间的参考信号的消息数据信号调制的载波，并且接收机接收发送的调制载波。 在接收机中，接收到的调制载波通过正弦波和余弦波被解调，每个正弦波和余弦波相对于所接收的载波波形具有角频率偏差ΔωTA，解调的消息数据信号和调制参考信号之间的相位差是 检测到的检测出的相位差的基于时间的变化由低阶函数近似，计算接收到的参考信号的相位与基于近似函数计算的相位之间的误差，以及突发位置检测信号 当计算出的误差小于预定阈值时产生。

公开(公告)号：US5444739A

公开(公告)日：1995-08-22

申请号：US937403

申请日：1992-08-31

申请人： Mitsuru Uesugi ,  Kazuhisa Tsubaki ,  Kouichi Honma

发明人： Mitsuru Uesugi ,  Kazuhisa Tsubaki ,  Kouichi Honma

IPC分类号： H04B7/005 ,  H03H17/00 ,  H03H17/02 ,  H03H17/04 ,  H03H17/06 ,  H03H21/00 ,  H04B3/06 ,  H04L25/03

CPC分类号： H04B7/005 ,  H03H17/0288 ,  H04L25/03057 ,  H04L2025/03573

摘要： In an equalizer including a plurality of delay elements, a plurality of weighting elements and an adder, the impulse response of a signal transmission channel is estimated to selectively switch over a plurality of selector switches associated with the inputs and outputs of the respective delay elements, thereby selectively changing the combination of the delay elements and the weighting elements transmitting an input signal from the channel to the adder and also changing the combination of the adder and a delay element feeding back the output of the discriminator to the adder. Thus, the number of required taps of the equalizer can be reduced, so that the power consumption and size of the equalizer can be reduced.

摘要翻译： 在包括多个延迟元件的均衡器，多个加权元件和加法器中，估计信号传输通道的脉冲响应以有选择地切换与相应延迟元件的输入和输出相关联的多个选择器开关， 从而选择性地改变延迟元件和从通道传输输入信号到加法器的加权元件的组合，并且还改变加法器和将鉴别器的输出反馈给加法器的延迟元件的组合。 因此，可以减少均衡器所需的抽头的数量，从而可以减小均衡器的功耗和尺寸。

公开(公告)号：US5414737A

公开(公告)日：1995-05-09

申请号：US975695

申请日：1992-11-13

申请人： Mitsuru Uesugi ,  Yoshiko Saito ,  Kazuhisa Tsubaki ,  Kouichi Honma

发明人： Mitsuru Uesugi ,  Yoshiko Saito ,  Kazuhisa Tsubaki ,  Kouichi Honma

IPC分类号： H04B7/26 ,  H04L1/00 ,  H04L25/30 ,  H04L27/00 ,  H04L27/10 ,  H04L27/06

CPC分类号： H04L1/203 ,  H04L1/0054

摘要： A data decoding device eliminates the need for encoding by a decoder for estimating an error rate and can estimate the error rate at a high precision even if an error is included. A square error sum is calculated by an error calculator based on an output of an equalizer. A estimated error rate is determined based on the error sum, a likelihood is determined based on the estimated error rate, and soft discrimination decoding is made based on the likelihood and the output of the equalizer.

摘要翻译： 数据解码装置消除了用于估计误码率的解码器编码的需要，并且即使包括错误也能以高精度估计错误率。 基于均衡器的输出的误差计算器计算平方误差和。 基于误差和来确定估计的误码率，基于估计的误码率确定似然性，并且基于均衡器的似然性和输出进行软鉴别解码。