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1. 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。

2. 发明申请

US20090097498A1 COMMUNICATION METHOD, COMMUNICATION APPARATUS, AND INTEGRATED CIRCUIT 审中-公开
标题翻译：通信方法，通信设备和集成电路
公开(公告)号：US20090097498A1
公开(公告)日：2009-04-16
申请号：US12130624
申请日：2008-05-30
申请人： Shinichiro OHMI , Hideki Homma , Yoshio Urabe , Yoshinori Okazaki , Yosuke Matsushita
发明人： Shinichiro OHMI , Hideki Homma , Yoshio Urabe , Yoshinori Okazaki , Yosuke Matsushita
IPC分类号： H04L12/43
CPC分类号： H04L12/43 , H04L12/2838
摘要： A communication apparatus for communicating by commonly sharing a transmission channel with another communication apparatus which performs a data transmission, comprising: a transmitting unit which transmits first data at first timing and second data at second timing subsequent to the first timing to the transmission channel; and an information adding unit which adds time slot information to the first data, the time slot information indicating a time slot during which the second data is transmitted prior to the data transmission performed by the other communication apparatus.
摘要翻译：一种用于通过与执行数据传输的另一个通信装置共同共享传输信道进行通信的通信装置，包括：发送单元，其在第一定时发送第一数据，并且在第一定时之后的第二定时向传输信道发送第二数据; 以及信息添加单元，其将时隙信息添加到第一数据，所述时隙信息指示在由另一通信装置进行的数据传输之前发送第二数据的时隙。

3. 发明申请

US20080301253A1 COMMUNICATION METHOD, COMMUNICATION APPARATUS, INTEGRATED CIRCUIT AND CIRCUIT MODULE 审中-公开
标题翻译：通信方法，通信设备，集成电路和电路模块
公开(公告)号：US20080301253A1
公开(公告)日：2008-12-04
申请号：US12130599
申请日：2008-05-30
申请人： Shinichiro OHMI , Yoshio Urabe
发明人： Shinichiro OHMI , Yoshio Urabe
IPC分类号： G06F15/16
CPC分类号： H04B3/54 , H04B2203/5408 , H04B2203/5445 , H04L5/0007 , H04L5/0044 , H04L12/4035 , H04L12/413
摘要： A communication method in a communication system which includes a master apparatus and plural slave apparatuses including at least first, second and third slave apparatuses, that are connected to communication medium and are associated with plural cyclic slots including at least first and second slots for triggering data transmission after a latency time, wherein data transmissions of the first and the second slave apparatuses are triggered by the first slot; and data transmission of the third slave apparatus is triggered by the second slot, the method including: sensing the communication medium by the master apparatus; and modifying, by the master apparatus, the first slave apparatus so as to trigger the data transmission of the first slave apparatus by a third slot which differs from the first and the second slots when the data transmission of the first slave apparatus triggered by the first slot is sensed in the sensing process.
摘要翻译：一种通信系统中的通信方法，包括主设备和多个从设备，至少包括第一，第二和第三从设备，其连接到通信介质并且与多个循环槽相关联，所述多个循环槽包括用于触发数据的至少第一和第二槽在等待时间之后的传输，其中第一和第二从设备的数据传输由第一时隙触发; 并且所述第三从属设备的数据传输由所述第二时隙触发，所述方法包括：通过所述主设备感测所述通信介质; 以及由所述主设备修改所述第一从设备，以便当由所述第一从设备触发的所述第一从设备的数据传输与所述第一和第二时隙不同的第三时隙触发所述第一从设备的数据传输时，在感测过程中感测到槽。

4. 发明授权

US5901179A Waveform shaping method and equipment 失效
标题翻译：波形整形方法和设备
公开(公告)号：US5901179A
公开(公告)日：1999-05-04
申请号：US657959
申请日：1996-06-04
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.
摘要翻译：在使用信息数据作为分组执行突发传输的发送机中，如果状态被分为四种模式，即突发停止模式，突发上升模式，突发连续模式和突发下降模式，设计为读取的波形整形设备从两个存储器表中的任一个的输出中输出每个模式的形状波形数据，第一存储表保存用于突发上升模式和突发下降模式中共同使用的特定数据模式的波形数据，以及第二存储器表，其保存用于在脉冲串连续模式中使用的所有数据模式，或波形整形设备，包括保存与突发上升模式中使用的所有数据模式对应的波形数据的第三存储器表，以及保存对应于所有数据模式的波形数据的第四存储器表用于突发下降模式，并通过在t处合成第三和第四存储器表的两个输出来产生形状波形数据他连续时间连续模式。

5. 发明授权

US5504774A Data transmitting and receiving apparatus 失效
标题翻译：数据发送和接收设备
公开(公告)号：US5504774A
公开(公告)日：1996-04-02
申请号：US169529
申请日：1993-12-20
申请人： Hitoshi Takai , Yoshio Urabe , Hidetoshi Yamasaki
发明人： Hitoshi Takai , Yoshio Urabe , Hidetoshi Yamasaki
IPC分类号： H04B1/707 , H04K1/10
CPC分类号： H04B1/70718
摘要： A data transmitting and receiving apparatus is disclosed. The receiving apparatus receives a spread spectrum signal prepared by modulating a carrier wave with data to produce a data modulated signal and multiplying the data modulated signal with a spreading signal which has a bandwidth greater than that of the data modulated signal. The receiving apparatus may include three bandpass filters for passing three different band portions of a full band of the spread spectrum signal and producing an intermediate signal, and a detector for detecting data from the intermediate signal and for producing a detector output. The apparatus may also include a reception state evaluation device for detecting the current reception state of the detector and for producing a poor reception signal, when the detector is in a poor reception state. The poor reception signal is used for changing from a current band to another band.
摘要翻译：公开了一种数据发送和接收装置。接收装置接收通过用数据调制载波准备的扩频信号，以产生数据调制信号，并将数据调制信号与带宽大于数据调制信号的带宽的扩展信号相乘。接收装置可以包括三个带通滤波器，用于通过扩展频谱信号的全带的三个不同频带部分并产生中间信号;以及检测器，用于从中间信号检测数据并产生检测器输出。当检测器处于不良接收状态时，该装置还可以包括用于检测检测器的当前接收状态并用于产生不良接收信号的接收状态评估装置。差的接收信号用于从当前频带改变到另一频带。

6. 发明申请

US20080118010A1 Phase error correction circuit and receiver incorporating the same 有权
公开(公告)号：US20080118010A1
公开(公告)日：2008-05-22
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.

7. 发明授权

US06922453B2 Diversity receiver 有权
标题翻译：分集接收机
公开(公告)号：US06922453B2
公开(公告)日：2005-07-26
申请号：US10140889
申请日：2002-05-09
申请人： Kenji Miyanaga , Hidetoshi Yamasaki , Yoshio Urabe , Hitoshi Takai , Kenichi Mori
发明人： Kenji Miyanaga , Hidetoshi Yamasaki , Yoshio Urabe , Hitoshi Takai , Kenichi Mori
IPC分类号： H04B7/08 , H04B7/10
CPC分类号： H04B7/0888
摘要： A diversity receiver carries out error detection, error correction, and data detection on each detected data string 21. An output switching unit 17 outputs a decoded data string 24 of a branch selected by a branch selector 16. The branch selector 16 selects a branch of highest priority in priority information 29 from branches of which a data detection signal 25 indicates that the data is valid and of which the number of error symbols 22 coincides with a minimum value. In the priority information 29, higher priority is assigned to a branch that includes an antenna of which the coverage is closer to that of an antenna included in a branch selected at the immediately-previous time. Thus, selected from the plurality of branches having the minimum number of error symbols 22 is the one that includes the antenna of which the coverage is closest to the coverage of the antenna included in the branch selected at the immediately-previous time. Therefore, it is possible to suppress the occurrence of misselection of a poor-quality branch, and improve a reception characteristic.
摘要翻译：分集接收机对每个检测数据串21执行错误检测，纠错和数据检测。输出切换单元17输出由分支选择器16选择的分支的解码数据串24.分支选择器16选择分支数据检测信号25指示数据有效并且误差符号22的数目与最小值一致的来自分支的优先级信息29的最高优先级。在优先级信息29中，较高的优先级被分配给一个分支，该分支包括一个天线，该天线的覆盖范围更接近包括在紧接在前一时刻所选择的分支中的天线的天线。因此，从具有最小数目的错误符号22的多个分支中选择的是包括其最接近天线的天线的天线，天线包括在紧邻之前的时间中选择的分支中。因此，可以抑制质量差的分支的错误选择的发生，并且提高接收特性。

8. 发明授权

US5828707A Differential detecting apparatus for detecting phase difference of phase-modulated signal 失效
标题翻译：用于检测相位调制信号的相位差的差分检测装置
公开(公告)号：US5828707A
公开(公告)日：1998-10-27
申请号：US731830
申请日：1996-10-21
申请人： Yoshio Urabe , Hitoshi Takai , Hidetoshi Yamasaki
发明人： Yoshio Urabe , Hitoshi Takai , Hidetoshi Yamasaki
IPC分类号： H04L27/227 , H04L27/233 , H03D3/22 , H04L27/22
CPC分类号： H04L27/2331
摘要： A differential detecting apparatus includes samplers 1 and 2, differential detection calculating unit 3, and two post-detection filters 4 and 5. Differential detection calculating unit 3 performs a differential detection with time-division multiplexing on data output from these samplers and alternately outputs a data sequence of a part of cosine component of the phase difference of the modulated signal and a data sequence of the rest of the cosine component. Differential detection calculating unit 3 also alternately outputs a data sequence of a part of sine component of the phase difference and a data sequence of the rest of the sine component. Each of post-detection filters 4 and 5 includes linear interpolating filter 35 and integral filter 36 which are connected in series. The linear interpolating filter 35 obtains a moving average from successive three pieces of input data weighted by 1:2:1 and the integral filter 36 obtains an integral value from successive k pieces of input data.
摘要翻译：差分检测装置包括采样器1和2，差分检测计算单元3和两个检测后滤波器4和5.差分检测计算单元3对从这些采样器输出的数据进行时分复用执行差分检测，并交替地输出调制信号的相位差的余弦分量的一部分的数据序列和余弦分量的其余部分的数据序列。差分检测计算单元3还交替地输出相位差的正弦分量的一部分的数据序列和正弦分量的其余部分的数据序列。后检测滤波器4和5中的每一个包括串联连接的线性内插滤波器35和积分滤波器36。线性内插滤波器35从由1:2:1加权的连续三个输入数据中获得移动平均，并且积分滤波器36从连续的k个输入数据获得积分值。

9. 发明授权

US5712879A Differential detecting device 失效
标题翻译：差分检测装置
公开(公告)号：US5712879A
公开(公告)日：1998-01-27
申请号：US506321
申请日：1995-07-24
申请人： Akihiro Tatsuta , Yoshio Urabe , Hitoshi Takai
发明人： Akihiro Tatsuta , Yoshio Urabe , Hitoshi Takai
IPC分类号： H04L27/227 , H03D3/00 , H04L27/22 , H04L27/06
CPC分类号： H03D3/007 , H03D2200/005 , H03D2200/0062 , H03D3/006
摘要： A signal adding device and a differential signal detecting device, wherein the signal adding device adds n input signals using n A/D converters, a selector and a lowpass filter. The n input signals are sampled in sequence by the A/D converter and digitized. Each digitized data is time-division multiplexed by the selector and input to the lowpass filter. The output of the lowpass filter is equal to an added signal of n input signals. The differential signal detecting device detects from inphase and quadrature-phase baseband signals the sine and cosine components of a phase difference at two instants of the phase-modulated signal. Two A/D converters digitize and convert the inphase and quadrature-phase baseband signals to inphase data and quadrature-phase data at predetermined intervals. A cosine component calculating unit calculates the cosine component by alternately selecting the inphase data and the quadrature-phase data. Similarly, a sine component calculating unit calculates the sine component by alternately selecting the inphase data and the quadrature-phase data. Two selectors select either the inphase data or the quadrature-phase data at predetermined intervals. By alternately selecting the inphase data and quadrature-phase data, and then multiplying the results, differential detection can be achieved with fewer multipliers and adders than the prior art differential detecting devices.
摘要翻译：一种信号添加装置和差分信号检测装置，其中信号添加装置使用n个A / D转换器，选择器和低通滤波器来添加n个输入信号。 n个输入信号由A / D转换器依次采样并数字化。每个数字化数据由选择器进行时分复用，并输入低通滤波器。低通滤波器的输出等于n个输入信号的相加信号。差分信号检测装置从相位和正交相位基带信号中检测相位调制信号的两个时刻的相位差的正弦和余弦分量。两个A / D转换器将同相和正交相位基带信号以预定的间隔数字化并转换为同相数据和正交相位数据。余弦分量计算单元通过交替地选择同相数据和正交相位数据来计算余弦分量。类似地，正弦分量计算单元通过交替地选择同相数据和正交相位数据来计算正弦分量。两个选择器以预定间隔选择同相数据或正交相位数据。通过交替地选择同相数据和正交相位数据，然后将结果相乘，可以利用比现有技术的差分检测装置更少的乘法器和加法器来实现差分检测。

10. 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。

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