公开(公告)号：US20130143499A1

公开(公告)日：2013-06-06

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

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。

公开(公告)号：US08311165B2

公开(公告)日：2012-11-13

申请号：US12299933

申请日：2007-05-09

申请人： Hiroshi Takahashi ,  Chalermphol Apichaichalermwongse ,  Kenji Miyanaga ,  Yoshio Urabe ,  Kazuhiro Ando ,  Hiroshi Hayashino

发明人： Hiroshi Takahashi ,  Chalermphol Apichaichalermwongse ,  Kenji Miyanaga ,  Yoshio Urabe ,  Kazuhiro Ando ,  Hiroshi Hayashino

IPC分类号： H04B1/00 ,  H04B7/10 ,  H04K1/10 ,  H04L1/02

CPC分类号： H04B1/123 ,  H04B1/7103 ,  H04J11/0036 ,  H04L25/0328

摘要： A reception station 1b compares its BSSID with BSSID included in a signal that has arrived thereat. As BSSIDs included in signals transmitted by interfering stations 1c and 1d both match BSSID of the reception station 1b, the reception station 1b identifies each of the interfering stations 1c and 1d as a non-suppression target transmission source. As neither of BSSIDs included in signals transmitted by interfering stations 2a and 2b matches BSSID of the reception station 1b, the reception station 1b identifies each of the interfering stations 2a and 2b as a suppression target transmission source. The reception station 1b uses characteristic amounts of signals that are associated with the interfering stations (i.e., suppression target transmission sources) 2a and 2b and that have been measured in the past as characteristic amounts of interfering signals that are used to suppress the interfering signals from a received signal.

摘要翻译： 接收站1b将其BSSID与包括在已经到达的信号中的BSSID进行比较。 由于由干扰站1c和1d发送的信号中包括的BSSID都匹配接收站1b的BSSID，所以接收站1b将每个干扰站1c和1d识别为非抑制目标传输源。 由于由干扰站2a和2b发送的信号中包括的BSSID都不与匹配接收站1b的BSSID，所以接收站1b将每个干扰站2a和2b识别为抑制目标传输源。 接收站1b使用与干扰站（即，抑制目标发送源）2a和2b相关联的信号的特征量（即，抑制目标发送源）2a和2b，并且作为用于抑制干扰信号的干扰信号的特征量， 接收信号。

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：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。

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.

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：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。

公开(公告)号：US08724524B2

公开(公告)日：2014-05-13

申请号：US13233310

申请日：2011-09-15

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： H04B7/005

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 from 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.

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。

公开(公告)号：US08705559B2

公开(公告)日：2014-04-22

申请号：US12270671

申请日：2008-11-13

申请人： Kensuke Yoshizawa ,  Youhei Koide ,  Shunsuke Nagayasu ,  Yoshio Urabe

发明人： Kensuke Yoshizawa ,  Youhei Koide ,  Shunsuke Nagayasu ,  Yoshio Urabe

IPC分类号： H04B7/212 ,  H04W74/08 ,  H04L12/413

CPC分类号： H04W74/0816 ,  H04L12/40163 ,  H04L12/413

摘要： A communication apparatus is connected to a transmission channel capable of transmitting a plurality of kinds of data, each kind of data having different priority levels. The apparatus includes: an acquisition section which acquires each priority information of each kind of data on the transmission channel; and a transmission controller that, when transmitting data having a predetermined priority are transmitted from the communication apparatus, controls a time from a predetermined transmission reference time to a transmission end time of the transmitting data in accordance with the priority information.

摘要翻译： 通信装置连接到能够发送多种数据的传输信道，每种数据具有不同的优先级。 该装置包括：获取部，其获取传输信道上的各种数据的每个优先级信息; 以及发送控制器，当从通信装置发送具有预定优先级的数据时，根据优先级信息控制从预定的发送参考时间到发送数据的发送结束时间的时间。

公开(公告)号：US20100220593A1

公开(公告)日：2010-09-02

申请号：US12599374

申请日：2009-03-31

申请人： Yuki Fujiwara ,  Yosuke Matsushita ,  Yoshio Urabe

发明人： Yuki Fujiwara ,  Yosuke Matsushita ,  Yoshio Urabe

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04B2203/5445 ,  H04L47/11 ,  H04L47/122 ,  H04L47/2408 ,  H04L47/2433 ,  H04L47/2458 ,  H04L47/33

摘要： Each of PLC modems 11 through 14 that perform communication using a PLC network 1 manages a priority management table that contains, for each of a plurality of data exchanged using a common transmission line, (i) a main priority (original), (ii) a main priority (changed), and (iii) a sub-priority. For example, when the PLC modem 11 detects congestion, the PLC modem 11 searches its priority management table for a stream that has the same main priority (original) as and a lower sub-priority than data transmitted by the PLC modem 11. The PLC modem 11 then transmits, to the PLC modem that transmits the stream found as a result of the above search, a notification signal notifying that the data transmitted by the PLC modem 11 has a high sub-priority.

摘要翻译： 使用PLC网络1执行通信的PLC调制解调器11至14中的每一个管理优先级管理表，对于使用公共传输线交换的多个数据中的每一个，包含主要优先级（原始），（ii） 主要优先事项（已更改），（iii）次要优先事项。 例如，当PLC调制解调器11检测到拥塞时，PLC调制解调器11在其​​优先级管理表中搜索与PLC调制解调器11发送的数据相同的主要优先级（原始）和较低的子优先级的流.PLC 调制解调器11然后向作为上述搜索结果发送的流的PLC调制解调器发送通知PLC调制解调器11发送的数据具有高次优先级的通知信号。