公开(公告)号：US5446770A

公开(公告)日：1995-08-29

申请号：US218664

申请日：1994-03-28

申请人： Yoshio Urabe ,  Hitoshi Takai ,  Hidetoshi Yamasaki

发明人： Yoshio Urabe ,  Hitoshi Takai ,  Hidetoshi Yamasaki

IPC分类号： H04B1/54 ,  H04B1/30 ,  H04B1/56 ,  H04B15/00 ,  H04L5/16 ,  H04B1/38

CPC分类号： H04B1/56 ,  H04B1/30

摘要： A transceiver for transmitting and receiving a signal having the same frequency according to a time-division includes a local oscillator for generating a local signal having a first frequency, a frequency converter for converting the local signal into a carrier signal, a modulator for modulating the carrier signal by using a transmitting baseband signal so as to generate a transmitting signal having a second frequency and a receiving section for receiving a receiving signal having the second frequency which is the same as that of the transmitting signal. The frequency convertor includes a fractional frequency convertor for converting a signal having an input frequency into a signal having an output frequency. Wherein, the output frequency is n.sub.2 /n.sub.1 times the input frequency, where n.sub.1 is an integer greater than 2, n.sub.2 is an integer greater than 1, n.sub.1 and n.sub.2 being relatively prime, whereby the second frequency of the transmitting signal is not any integral multiple of the first frequency of the local signal. In receiving operation of the transceiver, the operation of the frequency convertor is terminated.

摘要翻译： 用于根据时分发送和接收具有相同频率的信号的收发器包括用于产生具有第一频率的本地信号的本地振荡器，用于将本地信号转换为载波信号的频率转换器，调制器 通过使用发送基带信号生成具有第二频率的发送信号和接收部分，用于接收具有与发送信号相同的第二频率的接收信号。 变频器包括用于将具有输入频率的信号转换成具有输出频率的信号的分数变频器。 其中，输出频率为输入频率的n2 / n1，其中n1为大于2的整数，n2为大于1的整数，n1和n2为素数，因此发送信号的第二频率不是任何积分 多个第一频率的本地信号。 在收发器的接收操作中，频率转换器的操作被终止。

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.

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。

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。

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。

公开(公告)号：US07277501B2

公开(公告)日：2007-10-02

申请号：US10640655

申请日：2003-08-14

申请人： Kenichi Mori ,  Yoshio Urabe ,  Koichiro Tanaka ,  Hideki Nakahara ,  Hitoshi Takai

发明人： Kenichi Mori ,  Yoshio Urabe ,  Koichiro Tanaka ,  Hideki Nakahara ,  Hitoshi Takai

IPC分类号： H03D3/00 ,  H03K9/06

CPC分类号： H04L27/2331 ,  H04L5/06

摘要： A data receiving device is provided enabling a reduction in the time required for extracting a partial band signal, and capable of being easily made in a simple structure as an LSI device without requiring a plurality of analog circuits having the same characteristics. The data receiving device includes: a first sampler for sampling an in-phase signal I(t) at every predetermined sampling period and outputting the sampled in-phase signal; a second sampler for sampling a quadrature signal at every predetermined sampling period and outputting the sampled quadrature signal; a partial band extracting section structured by a complex filter for extracting partial band signals IBr, QBr from frequency components included in the sampled in-phase signal and the sampled quadrature signal; and first and second delay detection operating sections for performing a delay detecting process based on the partial band signals and outputting detection signals.

摘要翻译： 提供一种数据接收装置，其能够减少提取部分频带信号所需的时间，并且能够容易地以简单的结构作为LSI装置，而不需要具有相同特性的多个模拟电路。 数据接收装置包括：第一采样器，用于在每个预定采样周期对同相信号I（t）进行采样，并输出采样的同相信号; 第二取样器，用于在每个预定采样周期对正交信号进行采样，并输出采样的正交信号; 由复数滤波器构成的部分频带提取部分，用于从包括在采样的同相信号中的频率分量和采样的正交信号中提取部分频带信号IB，QB＆lt; SUB＆lt; ; 以及第一和第二延迟检测操作部分，用于基于部分频带信号执行延迟检测处理并输出检测信号。

公开(公告)号：US07336737B2

公开(公告)日：2008-02-26

申请号：US10690560

申请日：2003-10-23

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，由此计算校正值115。 校正值确定部分103按时间顺序存储多个校正值115。 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。

公开(公告)号：US20130148766A1

公开(公告)日：2013-06-13

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： H04L27/26

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。

公开(公告)号：US08064370B2

公开(公告)日：2011-11-22

申请号：US12281388

申请日：2007-03-01

申请人： Naganori Shirakata ,  Shuya Hosokawa ,  Koji Imamura ,  Koichiro Tanaka ,  Kenji Miyanaga ,  Yoshio Urabe ,  Tsutomu Mukai

发明人： Naganori Shirakata ,  Shuya Hosokawa ,  Koji Imamura ,  Koichiro Tanaka ,  Kenji Miyanaga ,  Yoshio Urabe ,  Tsutomu Mukai

IPC分类号： H04B7/005

CPC分类号： H04L69/28 ,  H04L1/0007 ,  H04L1/16 ,  H04W16/14 ,  H04W72/12

摘要： At a time T131, a wireless communication apparatus 11A determines to transmit a data packet, and then performs interference signal detection for a period TA. At a time T132, which precedes a time T133 at which the period TA has elapsed since the time T131, the wireless communication apparatus 11A detects a data packet d21 (an interference signal). At a time T134, at which a period TB has elapsed since the time T132 at which the interference signal has been detected, the wireless communication apparatus 11A starts transmitting a data packet d11 to a wireless communication apparatus 12A. At a time T136, the wireless communication apparatus 11A completes the transmission of the data packet d11.

摘要翻译： 在时间T131，无线通信设备11A确定发送数据分组，然后执行周期TA的干扰信号检测。 无线通信装置11A在从时间T131开始经过了周期TA的时间T133之前的时刻T132，检测到数据包d21（干扰信号）。 在从检测到干扰信号的时间T132开始经过了周期TB的时间T134之后，无线通信装置11A开始向无线通信装置12A发送数据包d11。 在时间T136，无线通信装置11A完成数据分组d11的发送。

公开(公告)号：US08040837B2

公开(公告)日：2011-10-18

申请号：US11916884

申请日：2006-06-08

申请人： Yoshio Urabe ,  Kenji Miyanaga ,  Kazuhiro Ando ,  Chalermphol Apichaichalermwongse ,  Tsutomu Mukai

发明人： Yoshio Urabe ,  Kenji Miyanaga ,  Kazuhiro Ando ,  Chalermphol Apichaichalermwongse ,  Tsutomu Mukai

IPC分类号： H04Q7/00

CPC分类号： H04W74/0808 ,  H04W56/002 ,  H04W72/1205

摘要： When communicating with a second wireless station, a first wireless station judges, based on link-related information received form the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station. Preferably, when the first wireless station having a concurrent transmission control function communicates with the second wireless station having a interference reduction function, the first wireless station controls the interference reduction function of the second wireless station based on the link-related information received from the second wireless station and interference information, such that the transmission link from the third wireless station to the fourth wireless station and the transmission link from the first wireless station to the second wireless station can be established at the same time without interference with each other. If judging that the concurrent transmission is available, the first wireless station transmits a signal to the second wireless station according to a timing that overlaps transmission of a signal from the third wireless station to the fourth wireless station.

摘要翻译： 当与第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息和从由第四无线站发送的信号提取的链路相关信息来判断来自第三无线站的传输链路 可以同时建立到第四无线站的站和从第一无线站到第二无线站的传输链路，而不会彼此干扰。 如果肯定地判断，则第一无线站与第三无线站向第四无线站发送的信号同步地向第二无线站发送信号。 优选地，当具有并发传输控制功能的第一无线站与具有干扰减少功能的第二无线站通信时，第一无线站基于从第二无线站接收到的链路相关信息来控制第二无线站的干扰减少功能 无线站和干扰信息，使得可以同时建立从第三无线站到第四无线站的传输链路和从第一无线站到第二无线站的传输链路，而不会彼此干扰。 如果判断并发传输可用，则第一无线站根据与从第三无线站到第四无线站的信号的传输重叠的定时向第二无线站发送信号。