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21. 发明授权

US07899139B2 Phase error correction circuit and receiver incorporating the same 有权
标题翻译：相位误差校正电路和接收器相结合
公开(公告)号：US07899139B2
公开(公告)日：2011-03-01
申请号：US12003933
申请日：2008-01-03
申请人： Hideki Nakahara , Koichiro Tanaka , Kenichi Mori , Yoshio Urabe , Hitoshi Takai
发明人： Hideki Nakahara , Koichiro Tanaka , Kenichi Mori , Yoshio Urabe , Hitoshi Takai
IPC分类号： H04L27/06
CPC分类号： H04L7/041 , H04L7/0334 , H04L7/046 , H04L27/2332 , H04L2027/0036 , H04L2027/0067 , H04L2027/0095
摘要： A detected signal 111 contains a preamble portion which includes symbol alternations, followed by a unique word portion, and a data portion. Each time a symbol alternation is detected, a correction value calculation section 102 averages the phase shift in the detected signal 111 for a predetermined length, thereby calculating a correction value 115. The correction value determination section 103 stores a plurality of correction values 115 in a chronological order. When the unique word portion is detected, the correction value determination section 103 retains, as an effective correction value 118, a correction value which is arrived at by going back a predetermined number of correction values among the stored correction values. A phase rotation section 104 corrects the phase of the detected signal 111 by using an effective correction value 118 calculated by the correction value determination section 103.
摘要翻译：检测信号111包含前导码部分，其包括符号替换，随后是唯一字部分和数据部分。每当检测到符号交替时，校正值计算部分102将检测信号111中的相移平均预定长度，从而计算校正值115.校正值确定部分103将多个校正值115存储在按时间顺序排列。当检测到唯一字部分时，校正值确定部分103将存储的校正值中的预定数量的校正值返回到达到的校正值作为有效校正值118。相位旋转部104通过使用由校正值确定部103计算出的有效校正值118来校正检测信号111的相位。

22. 发明授权

US06181749B2 Diversity reception apparatus 有权
标题翻译：分集接收装置
公开(公告)号：US06181749B2
公开(公告)日：2001-01-30
申请号：US09182063
申请日：1998-10-29
申请人： Yoshio Urabe , Hitoshi Takai , Hidetoshi Yamasaki , Kenichi Mori
发明人： Yoshio Urabe , Hitoshi Takai , Hidetoshi Yamasaki , Kenichi Mori
IPC分类号： H04B708
CPC分类号： H01Q3/267 , H04B7/0817 , H04B7/0888 , H04L1/06
摘要： A demodulator 1 obtains demodulated data in a plurality of channels. Estimating portions 2a and 2b estimate and output the numbers of erroneous symbols and error locations thereof in the demodulated data. A data comparator 3 compares the demodulated data corresponding to the error locations with the demodulated data in the corresponding locations in other channels to determine whether the error location is correct, and it outputs a decision signal in response to the determination. A data selector 4 selects one of the demodulated data in the plurality of channels on the basis of the numbers of erroneous symbols and the decision signals and outputs the data as selected data. It is then possible to maintain the reliability of error detection even when a less redundant short error detecting code is used, and also to accurately select a channel of good quality even when the demodulated data in all channels contain the same extent of errors.
摘要翻译：解调器1获得多个信道中的解调数据。估计部分2a和2b估计并输出解调数据中的错误符号和错误位置的数目。数据比较器3将对应于错误位置的解调数据与其他通道中的相应位置中的解调数据进行比较，以确定错误位置是否正确，并且响应于该确定而输出判定信号。数据选择器4基于错误符号和判定信号的数量选择多个信道中的解调数据中的一个，并输出数据作为选择的数据。即使当使用较少冗余的短错误检测码时也可以保持错误检测的可靠性，并且即使当所有信道中的解调数据包含相同的错误程度时，也可以准确地选择质量良好的信道。

23. 发明授权

US5825820A Waveform shaping method and equipment 失效
公开(公告)号：US5825820A
公开(公告)日：1998-10-20
申请号：US264616
申请日：1994-06-23
申请人： Yoshio Urabe , Shouichi Koga , Hitoshi Takai , Koji Kai , Hidetoshi Yamasaki
发明人： Yoshio Urabe , Shouichi Koga , Hitoshi Takai , Koji Kai , Hidetoshi Yamasaki
IPC分类号： H03G3/30 , H04L25/03 , H04L27/20 , H04L27/36 , H04L27/00
CPC分类号： H03G3/3089 , H03G3/3047 , H04L25/03859 , H04L27/2067 , H04L27/362
摘要： In the transmitter which carries out burst transmission using information data as a packet, if the status is divided into four modes, namely, burst stop mode, burst rising mode, burst continuous mode, and burst falling mode, a waveform shaping equipment designed to read out shaped waveform data for each mode from outputs of either of the two memory tables, the first memory table which holds waveform data for specific data patterns used in common in burst rising mode and burst falling mode and the second memory table which holds waveform data for all data patterns used in the burst continuous mode, or a waveform shaping equipment comprising the third memory table which holds waveform data corresponding to all the data patterns used in the burst rising mode and the fourth memory table which holds waveform data corresponding to all data patterns used in the burst falling mode and generating shaped waveform data by synthesizing the two outputs of the third and the fourth memory tables at the time of burst continuous mode.

24. 发明授权

US5617374A Signal detection device and clock recovery device using the same 失效
标题翻译：信号检测装置和使用其的时钟恢复装置
公开(公告)号：US5617374A
公开(公告)日：1997-04-01
申请号：US489276
申请日：1995-06-09
申请人： Shinichiro Ohmi , Hitoshi Takai , Yoshio Urabe
发明人： Shinichiro Ohmi , Hitoshi Takai , Yoshio Urabe
IPC分类号： H04L7/00 , H04L7/02 , H04L7/027 , H04L7/033 , H04L7/10 , G04B47/00 , H03K5/13
CPC分类号： H04L7/0331
摘要： A time window detection portion 3a outputs a time window detection pulse from a time window signal generated in a time window generating portion 2a and a zero-cross detection pulse detected in a zero-cross detection portion 1a. First and second phase storage portions 4a and 5a store output phase values of a phase counter 22 for different times as first and second phase values, respectively. A center phase computing portion 6a computes a first center phase value from the first and second phase values and a center phase storage portion 7a stores the first center phase value of the last time as a second center phase value. An approximation detection portion 8a determines whether the first and second center phase values are approximate or not and outputs an approximation detection pulse when they approximate. A frequency determination portion 20 determines whether a data signal is included in the input signal or not on the basis of frequency of detection of the approximation detection pulse with respect to the zero-cross detection pulse computed in a frequency computing portion 17.
摘要翻译：时间窗检测部分3a从在时间窗产生部分2a中产生的时间窗信号和在零交叉检测部分1a中检测的过零检测脉冲输出时间窗检测脉冲。第一和第二相位存储部分4a和5a分别将相位计数器22的输出相位值分别作为第一和第二相位值。中心相位计算部分6a根据第一和第二相位值计算第一中心相位值，并且中心相位存储部分7a将最后一次的第一中心相位值存储为第二中心相位值。近似检测部分8a确定第一和第二中心相位值是否近似，并且当它们近似时输出近似检测脉冲。频率确定部分20基于在频率计算部分17中计算的过零检测脉冲的检测频率来确定数据信号是否包括在输入信号中。

25. 发明授权

US5454012A Digital signal transmission device for improvement of anti-multipath feature, a method of the same and digital signal transmission waveform 失效
标题翻译：用于改善抗多径特征的数字信号传输装置，一种相同方法和数字信号传输波形
公开(公告)号：US5454012A
公开(公告)日：1995-09-26
申请号：US227111
申请日：1994-04-13
申请人： Hitoshi Takai , Yoshio Urabe , Hidetoshi Yamasaki
发明人： Hitoshi Takai , Yoshio Urabe , Hidetoshi Yamasaki
IPC分类号： H04B14/06 , H04L27/18 , H04L27/20 , H04L27/04
CPC分类号： H04L27/18
摘要： A digital signal transmission device for transmitting a signal generated by modulating a carrier wave according to a binary or M-ary data sequence. Such device comprises a differentially encoding unit for converting the original data sequence into a transmission data sequence, a waveform generation unit for.degree. generating a phase transition waveform in each time slot which corresponds to each data included in the transmission data sequence, and a modulation unit for modulating the carrier wave according to a signal which has the phase transition waveform generated by the waveform generation unit. The information to be transmitted is present in a difference between two data which are spaced form each other by a prescribed time slots. The phase transition waveform includes a center part and a connection part for linking the center parts in adjacent time slots where a phase transition waveform in the center part of a present time slot is generated according to a corresponding data, then a phase transition waveform in the connection part is generated to continue on the phase transition waveform in the center parts of time slots succeeding to and preceding the present time slot without having a discontinuity even at the linking point.
摘要翻译：一种数字信号传输装置，用于发送根据二进制或多元数据序列调制载波产生的信号。这种装置包括用于将原始数据序列转换成发送数据序列的差分编码单元，用于在与发送数据序列中包括的每个数据相对应的每个时隙中产生相位变化波形的DEG的波形生成单元和调制单元用于根据具有由波形生成单元生成的相变波形的信号来调制载波。要发送的信息以彼此间隔开规定时隙的两个数据之间的差异存在。相变波形包括中心部分和连接部分，用于根据相应的数据链接当前时隙的中心部分中的相位变化波形的相邻时隙中的中心部分，然后在生成连接部分，以便在当前时隙之前和之前的时隙的中心部分的相位转变波形上继续，而不会在连接点处具有不连续性。

26. 发明授权

US09119024B2 Wireless communication terminal, wireless communication device, and wireless communication method 有权
标题翻译：无线通信终端，无线通信设备和无线通信方式
公开(公告)号：US09119024B2
公开(公告)日：2015-08-25
申请号：US13816040
申请日：2012-02-09
申请人： Kazuhiro Ando , Yoshio Urabe , Masataka Irie , Hiroshi Takahashi
发明人： Kazuhiro Ando , Yoshio Urabe , Masataka Irie , Hiroshi Takahashi
IPC分类号： H04W4/00 , H04W4/02
CPC分类号： H04W4/80 , H04W4/021 , H04W4/023
摘要： A master device transmits a beacon signal including information related to a proximity wireless communication area in a predetermined cycle by using a transmission power which allows the beacon signal to reach beyond the proximity wireless communication area. When a slave device receives the beacon signal from the master device, the slave device estimates a distance to the master device in accordance with the information of the beacon signal. When a wireless communication terminal is located within the proximity wireless communication area, the slave device is connected to the master device by using a proximity wireless communication.
摘要翻译：主设备通过使用允许信标信号超出接近无线通信区域的发送功率，在预定周期内发送包括与接近无线通信区域相关的信息的信标信号。当从设备从主设备接收到信标信号时，从设备根据信标信号的信息估计到主设备的距离。当无线通信终端位于邻近无线通信区域内时，从设备通过使用邻近无线通信连接到主设备。

27. 发明授权

US08923451B2 Signal detection device and signal detection method 有权
标题翻译：信号检测装置及信号检测方法
公开(公告)号：US08923451B2
公开(公告)日：2014-12-30
申请号：US13817668
申请日：2012-03-07
申请人： Yoshio Urabe , Kazuhiro Ando , Masataka Irie , Hiroshi Takahashi
发明人： Yoshio Urabe , Kazuhiro Ando , Masataka Irie , Hiroshi Takahashi
IPC分类号： H04L27/06 , H04L27/26 , H04B17/00 , H04B7/08
CPC分类号： H04L27/2649 , H04B7/0828 , H04B17/327
摘要： In this signal detection device (100), a delaying unit (101) delays a first distributed signal or a second distributed signal distributed from a received signal for a period of time of T1 to form a first multiplication signal, and delays the one for a period of time of T2 (T2>T1) to form a second multiplication signal. An integrator (104) calculates a first correlation value by integrating the result of multiplying the first distributed signal and the first multiplication signal. An integrator (105) calculates a second correlation value by integrating the result of multiplying the second distributed signal and the second multiplication signal. An evaluation unit (108) evaluates whether the signal to be detected, which is a periodic signal with a period of T1 or a periodic signal with a period of T2, exists or not, on the basis of the first correlation value and the second correlation value.
摘要翻译：在该信号检测装置（100）中，延迟单元（101）将从接收信号分配的第一分布信号或第二分布信号延迟T1的时间段，以形成第一乘法信号，并将其延迟 T2（T2> T1）的时间段，形成第二个乘法信号。积分器（104）通过对乘以第一分布式信号和第一乘法信号的结果进行积分来计算第一相关值。积分器（105）通过对乘以第二分布信号和第二乘法信号的结果进行积分来计算第二相关值。评估单元（108）基于第一相关值和第二相关性来评估是否存在周期为T1的周期信号或周期为T2的周期信号的被检测信号是否存在值。

28. 发明授权

US08698573B2 Impedance stabilization device 有权
标题翻译：阻抗稳定装置
公开(公告)号：US08698573B2
公开(公告)日：2014-04-15
申请号：US13321352
申请日：2011-04-12
申请人： Yoshio Urabe
发明人： Yoshio Urabe
IPC分类号： H03H7/38 , H04B3/54
CPC分类号： H04B3/56 , H04B2203/5425 , H04B2203/5483 , H04L25/0278
摘要： Provided is an impedance stabilization device having a configuration in which a circuit including a series matching impedance element (11a and 12a (11b and 12b)) and a high-frequency blocking element connected in parallel is inserted in series into at least one of lines (10a (10b)) constituting a power line, and the lines (10a and 10b) are connected via another circuit including a parallel matching impedance element (13) and a low-frequency matching element (14) connected in series. A high-frequency signal passes through the series matching impedance element, a power current passes through the high-frequency blocking element, and the parallel matching impedance element functions as a termination resistor when a terminal on an equipment side is an open end.
摘要翻译：提供一种阻抗稳定装置，其具有将包括串联匹配阻抗元件（11a和12a（11b和12b））的电路和并联连接的高频阻挡元件串联插入至少一条线（（10a）和10b分别通过包括串联连接的并联匹配阻抗元件（13）和低频匹配元件（14）的另一个电路连接。高频信号通过串联匹配阻抗元件，功率电流通过高频阻塞元件，当设备端的端子为开路端时，并联匹配阻抗元件用作终端电阻。

29. 发明申请

US20120086517A1 IMPEDANCE STABILIZATION DEVICE 有权
标题翻译：阻抗稳定装置
公开(公告)号：US20120086517A1
公开(公告)日：2012-04-12
申请号：US13321352
申请日：2011-04-12
申请人： Yoshio Urabe
发明人： Yoshio Urabe
IPC分类号： H03H7/40 , H03H7/38
CPC分类号： H04B3/56 , H04B2203/5425 , H04B2203/5483 , H04L25/0278
摘要： Provided is an impedance stabilization device having a configuration in which a circuit including a series matching impedance element (11a and 12a (11b and 12b)) and a high-frequency blocking element connected in parallel is inserted in series into at least one of lines (10a (10b)) constituting a power line, and the lines (10a and 10b) are connected via another circuit including a parallel matching impedance element (13) and a low-frequency matching element (14) connected in series. A high-frequency signal passes through the series matching impedance element, a power current passes through the high-frequency blocking element, and the parallel matching impedance element functions as a termination resistor when a terminal on an equipment side is an open end.
摘要翻译：提供一种阻抗稳定装置，其具有将包括串联匹配阻抗元件（11a和12a（11b和12b））的电路和并联连接的高频阻挡元件串联插入至少一条线（（10a）和10b分别通过包括串联连接的并联匹配阻抗元件（13）和低频匹配元件（14）的另一个电路连接。高频信号通过串联匹配阻抗元件，功率电流通过高频阻塞元件，当设备端的端子为开路端时，并联匹配阻抗元件用作终端电阻。

30. 发明授权

US08023599B2 Interfering signal characterizing quantity storing method and device, interfering signal characterizing quantity acquiring method and device, and interfering signal suppressing method and device 有权
标题翻译：干扰信号特征量存储方法和装置，干扰信号特征量获取方法和装置，以及干扰信号抑制方法和装置
公开(公告)号：US08023599B2
公开(公告)日：2011-09-20
申请号：US12064421
申请日：2006-10-23
申请人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
发明人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
IPC分类号： H04B7/10
CPC分类号： H04B1/1027 , H04B1/7107 , H04B17/336 , H04L2025/03414 , H04L2025/03426
摘要： Interfering signals coming at random timings from different radio stations are identified. In order to attain this, a method for storing the characterizing quantity of an interfering signal included in a received signal includes calculating the characterizing quantity of the received signal, determining a probability that a desired signal is included in the received signal, determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal, and storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要翻译：确定来自不同电台的随机定时信号的干扰信号。为了实现这一点，包括在接收信号中的用于存储干扰信号的特征量的方法包括：计算接收信号的特征量，确定所需信号包含在接收信号中的概率，确定接收到的信号信号是确定在接收信号中不存在所需信号的概率时的干扰信号，并且当在接收信号确定步骤确定接收信号确定步骤时将接收信号的特征量存储为干扰信号表征量在所接收的信号中不包含所需信号的概率。

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