专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06507622B2 Communication systems, sender and receiver 有权
标题翻译：通信系统，发送方和接收方
公开(公告)号：US06507622B2
公开(公告)日：2003-01-14
申请号：US09159386
申请日：1998-09-23
申请人： Masahiro Maki , Shoichi Koga , Satoshi Shinozaki , Yuji Igata , Satoshi Hasako , Michinori Kishimoto , Kazuhiko Tamesue
发明人： Masahiro Maki , Shoichi Koga , Satoshi Shinozaki , Yuji Igata , Satoshi Hasako , Michinori Kishimoto , Kazuhiko Tamesue
IPC分类号： H04L102
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5425 , H04B2203/5495 , H04L27/2608
摘要： To use high noise transmission lines, such as an electric wire, as the lines to transmit signals, it is imperative to reduce the level of signals. The present invention is provided with a sending signal generating means 10, which outputs converted data after converting an input signal into a plurality of carrier signals assuming values at such intervals on the axis of frequency that the frequencies may not interfere with each other. If an interfering noise with any one of the plurality of frequencies arises on the transmission line, removal of only a carrier of the noise frequency would leave the communication in a good condition. Furthermore, better results can be hoped for if the respective carrier signals are so arranged as not to interfere with each other or so arranged to intersect orthogonally with each other not only on the axis of frequency but also on the axis of time
摘要翻译：为了使用诸如电线的高噪声传输线作为传输信号的线路，必须降低信号电平。本发明提供了一种发送信号发生装置10，其在将输入信号转换成多个载波信号之后输出转换的数据，假定在频率轴上的频率可能不会相互干扰的这种间隔的值。如果在传输线上出现与多个频率中的任何一个频率的干扰噪声，则仅删除噪声频率的载波将使通信处于良好状态。此外，如果相应的载波信号被布置成彼此不干扰或被布置为不仅在频率轴上而且在时间轴上彼此正交地相交，则可以希望更好的结果

2. 发明授权

US06414983B1 Digital communication apparatus 失效
公开(公告)号：US06414983B1
公开(公告)日：2002-07-02
申请号：US09539246
申请日：2000-03-30
申请人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
发明人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
IPC分类号： H04L2730
CPC分类号： H04L1/0068 , H04B1/713 , H04B2001/71563 , H04L1/0041 , H04L1/0054 , H04L1/0071 , H04L1/20 , H04L5/0046 , H04L5/006 , H04L27/0012 , H04L27/103 , H04L27/2608
摘要： A highly reliable and high-speed data transmission is made by using an FH or MFSK mode as suitably selected according to the usage of channels. When a reception signal is entered into a receiver through a transmission line, (i) a signal processing unit supplies the spectrum intensity values of carrier frequencies, (ii) a channel detection unit controls the phase of a time slot based on the spectrum intensity values, selects the MFSK or FH modulation mode, and supplies reception code data corresponding to detected carrier frequencies, and (iii) a decoder supplies reception information data based on the reception code data. When transmission information data are entered into a transmitter, (i) a coding unit supplies, according to the selected modulation mode, transmission code data based on the transmission information data, (ii) a channel generation unit supplies, based on the transmission code data, carrier frequencies to be used and (iii) a waveform generation unit supplies a transmission signal to a transmission line.

3. 发明授权

US6028886A Digital communication apparatus 失效
公开(公告)号：US6028886A
公开(公告)日：2000-02-22
申请号：US111886
申请日：1998-07-08
申请人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
发明人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
IPC分类号： H04B1/713 , H04J4/00 , H04L1/00 , H04L1/20 , H04L27/00 , H04L27/10 , H04L27/26 , H04W56/00 , H04W72/04 , H04W72/08 , H04W76/02 , H04B15/00
CPC分类号： H04L1/0068 , H04B1/713 , H04L1/0041 , H04L1/0054 , H04L1/0071 , H04L1/20 , H04L27/0012 , H04L27/103 , H04L27/2608 , H04L5/0046 , H04L5/006 , H04B2001/71563
摘要： A highly reliable and high-speed data transmission is made by using an FH or MFSK mode as suitably selected according to the usage of channels. When a reception signal is entered into a receiver through a transmission line, (i) a signal processing unit supplies the spectrum intensity values of carrier frequencies, (ii) a channel detection unit controls the phase of a time slot based on the spectrum intensity values, selects the MFSK or FH modulation mode, and supplies reception code data corresponding to detected carrier frequencies, and (iii) a decoder supplies reception information data based on the reception code data. When transmission information data are entered into a transmitter, (i) a coding unit supplies, according to the selected modulation mode, transmission code data based on the transmission information data, (ii) a channel generation unit supplies, based on the transmission code data, carrier frequencies to be used and (iii) a waveform generation unit supplies a transmission signal to a transmission line.

4. 发明授权

US06415005B2 Digital communication apparatus 失效
标题翻译：数字通信装置
公开(公告)号：US06415005B2
公开(公告)日：2002-07-02
申请号：US09266633
申请日：1999-03-11
申请人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
发明人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
IPC分类号： H04B710
CPC分类号： H04L1/0068 , H04B1/713 , H04B2001/71563 , H04L1/0041 , H04L1/0054 , H04L1/0071 , H04L1/20 , H04L5/0046 , H04L5/006 , H04L27/0012 , H04L27/103 , H04L27/2608
摘要： A highly reliable and high-speed data transmission is made by using an FH or MFSK mode as suitably selected according to the usage of channels. When a reception signal is entered into a receiver through a transmission line, (i) a signal processing unit supplies the spectrum intensity values of carrier frequencies, (ii) a channel detection unit controls the phase of a time slot based on the spectrum intensity values, selects the MFSK or FH modulation mode, and supplies reception code data corresponding to detected carrier frequencies, and (iii) a decoder supplies reception information data based on the reception code data. When transmission information data are entered into a transmitter, (i) a coding unit supplies, according to the selected modulation mode, transmission code data based on the transmission information data, (ii) a channel generation unit supplies, based on the transmission code data, carrier frequencies to be used and (iii) a waveform generation unit supplies a transmission signal to a transmission line.
摘要翻译：通过使用FH或MFSK模式根据通道的用途进行适当选择，进行高度可靠和高速的数据传输。当通过传输线将接收信号输入接收机时，（i）信号处理单元提供载频的频谱强度值，（ii）信道检测单元根据频谱强度值控制时隙的相位选择MFSK或FH调制模式，并提供对应于检测到的载波频率的接收码数据，以及（iii）解码器基于接收码数据提供接收信息数据。当发送信息数据被输入发送机时，（i）编码单元根据所选择的调制模式，根据发送信息数据提供发送代码数据，（ii）信道生成单元基于发送代码数据，要使用的载波频率和（iii）波形发生单元将传输信号提供给传输线。

5. 发明授权

US5835529A Digital communication apparatus 失效
公开(公告)号：US5835529A
公开(公告)日：1998-11-10
申请号：US763338
申请日：1996-12-11
申请人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
发明人： Shoichi Koga , Yuji Igata , Satoshi Hasako , Masahiro Maki , Michinori Kishimoto
IPC分类号： H04B1/713 , H04J4/00 , H04L1/00 , H04L1/20 , H04L27/00 , H04L27/10 , H04L27/26 , H04W56/00 , H04W72/04 , H04W72/08 , H04W76/02 , H04B15/00
CPC分类号： H04L1/0068 , H04B1/713 , H04L1/0041 , H04L1/0054 , H04L1/0071 , H04L1/20 , H04L27/0012 , H04L27/103 , H04L27/2608 , H04L5/0046 , H04L5/006 , H04B2001/71563
摘要： A highly reliable and high-speed data transmission is made by using an FH or MFSK mode as suitably selected according to the usage of channels. When a reception signal is entered into a receiver through a transmission line, (i) a signal processing unit supplies the spectrum intensity values of carrier frequencies, (ii) a channel detection unit controls the phase of a time slot based on the spectrum intensity values, selects the MFSK or FH modulation mode, and supplies reception code data corresponding to detected carrier frequencies, and (iii) a decoder supplies reception information data based on the reception code data. When transmission information data are entered into a transmitter, (i) a coding unit supplies, according to the selected modulation mode, transmission code data based on the transmission information data, (ii) a channel generation unit supplies, based on the transmission code data, carrier frequencies to be used and (iii) a waveform generation unit supplies a transmission signal to a transmission line.

6. 发明授权

US07103800B2 Display device, receiver, and test apparatus 有权
公开(公告)号：US07103800B2
公开(公告)日：2006-09-05
申请号：US10291695
申请日：2002-11-12
申请人： Satoshi Hasako , Masahiro Maki , Yuji Igata , Junji Kondou
发明人： Satoshi Hasako , Masahiro Maki , Yuji Igata , Junji Kondou
IPC分类号： G06F11/00
CPC分类号： H04N17/04
摘要： A display device comprises an inspection circuit for inspecting a data reception related circuit to generate inspection information, an inspection result image generation circuit for generating image data indicating the inspection information, a display switching circuit for superimposing inspection result image data on test video data, and a display unit for displaying the test video data superimposing the inspection result image data. As a result, it is possible to carry out inspection after assembly of the display device without disassembling the display device. This in turn makes it possible to carry out a test in a simple manner on the data reception related circuit inside the display device without changing noise environment inside the display device.

7. 发明授权

US06677829B2 Balanced transmission termination device and receiver unit composed thereof 有权
标题翻译：平衡传输终端设备和由其组成的接收机单元
公开(公告)号：US06677829B2
公开(公告)日：2004-01-13
申请号：US10086185
申请日：2002-02-27
申请人： Masahiro Maki , Yuji Igata , Satoshi Hasako , Junji Kondou
发明人： Masahiro Maki , Yuji Igata , Satoshi Hasako , Junji Kondou
IPC分类号： H01P126
CPC分类号： H04B3/30
摘要： Impedance values of a common mode choke coil, an impedance element disposed anterior to the common mode choke coil and an impedance element disposed posterior to the common mode choke coil are determined in such a manner that a common mode current flowing into the common mode choke coil does not exceed a value of rated current. Excessive common mode current is prevented from flowing into the common mode choke coil, and saturation and damage of the common mode choke coil is prevented.
摘要翻译：共模扼流线圈的阻抗值，设置在共模扼流线圈前方的阻抗元件和设置在共模扼流线圈之后的阻抗元件以这样的方式确定：共模电流流入共模扼流线圈不超过额定电流的值。防止过多的共模电流流入共模扼流线圈，并且防止共模扼流线圈的饱和和损坏。

8. 发明授权

US06288631B1 Power-line carrier communications system 有权
标题翻译：电力线载波通信系统
公开(公告)号：US06288631B1
公开(公告)日：2001-09-11
申请号：US09456495
申请日：1999-12-08
申请人： Satoshi Shinozaki , Masahiro Maki , Yuji Igata
发明人： Satoshi Shinozaki , Masahiro Maki , Yuji Igata
IPC分类号： H04M1104
CPC分类号： H04L1/0071 , H04B3/542 , H04L1/0041 , H04L1/04 , H04L27/2601
摘要： An object of the present invention is to provide a reliable power-line carrier communications system having a resistance to high-level impulse noise synchronized with power-cycle frequency in virtue of redundancy on both time and frequency axes. An interleave part (11) shuffles, in n interleaving ways, transmitting symbols in a unit of symbol stream of the same length as a noise cycle. A modulation part (12) modulates the n-type symbol streams with n-piece carriers. A demodulation part (22) extracts amplitude/phase information from each of the n-piece carriers, and then outputs the information as amplitude/phase information streams. A de-interleave part (23) unshuffles the amplitude/phase information streams. A determination part (24) determines a symbol value from amplitude/phase information values in the same timing in the amplitude/phase information streams, and then outputs the values in a receiving symbol stream.
摘要翻译：本发明的目的是提供一种可靠的电力线载波通信系统，其具有由于时间和频率轴上的冗余而具有与功率周期频率同步的高电平脉冲噪声的阻力。交织部分（11）洗牌以n个交织方式，以与噪声周期相同长度的符号流的单位发送符号。调制部分（12）用n片载波调制n型符号流。解调部分（22）从n个载波中的每一个提取振幅/相位信息，然后将该信息作为振幅/相位信息流输出。解交织部分（23）对振幅/相位信息流进行非混洗。确定部分（24）在幅度/相位信息流中以相同定时的幅度/相位信息值确定符号值，然后输出接收符号流中的值。

9. 发明授权

US08847751B2 Line status detection apparatus, communication apparatus, and line status detection method 有权
标题翻译：线路状态检测装置，通信装置和线路状态检测方法
公开(公告)号：US08847751B2
公开(公告)日：2014-09-30
申请号：US11722502
申请日：2005-12-22
申请人： Fumio Ichihara , Akihiro Yamashita , Hidekazu Matsunobu , Nobutaka Kodama , Masahiro Maki , Tsunehiro Hanada , Yuji Igata , Toshiyuki Wakisaka , Kazuaki Kusune , Mutsuhiko Oishi , Ryota Yukizane
发明人： Fumio Ichihara , Akihiro Yamashita , Hidekazu Matsunobu , Nobutaka Kodama , Masahiro Maki , Tsunehiro Hanada , Yuji Igata , Toshiyuki Wakisaka , Kazuaki Kusune , Mutsuhiko Oishi , Ryota Yukizane
IPC分类号： H04Q1/30 , H04B3/04 , H04B3/54
CPC分类号： H04B3/54 , H04B3/04 , H04B2203/5408 , H04B2203/5416 , H04B2203/5445 , H04B2203/5483 , H04B2203/5491 , H04B2203/5495
摘要： A first communication apparatus 100 transmits a pilot signal which was generated by a pilot signal generation section 14, at predetermined timing, and detects an unbalance component of a transmission line 300 at the time of pilot signal transmission in an unbalance component detection section 13, and controls a transmission signal in such a manner that an unbalance component is reduced by a transmission control section 12 on the basis of the detected unbalance component.
摘要翻译：第一通信装置100在预定定时发送由导频信号生成部14生成的导频信号，并且在不平衡成分检测部13中检测导频信号发送时的传输线路300的不平衡分量，基于检测到的不平衡分量，以传输控制部分12减小不平衡分量的方式控制传输信号。

10. 发明授权

US07864658B2 Multicarrier communication method and system, and communication apparatus incorporated therein 有权
标题翻译：多载波通信方法和系统以及其中并入的通信装置
公开(公告)号：US07864658B2
公开(公告)日：2011-01-04
申请号：US10939339
申请日：2004-09-14
申请人： Toshiyuki Wakisaka , Masahiro Maki , Hisao Koga , Yuji Igata , Fumio Ichihara , Akihiro Yamashita , Tsunehiro Hanada , Mutsuhiko Oishi
发明人： Toshiyuki Wakisaka , Masahiro Maki , Hisao Koga , Yuji Igata , Fumio Ichihara , Akihiro Yamashita , Tsunehiro Hanada , Mutsuhiko Oishi
IPC分类号： H04J11/00
CPC分类号： H04L25/028 , H04B3/54 , H04B2203/5416 , H04L1/0003 , H04L5/0007 , H04L5/0046 , H04L5/006 , Y02D50/10
摘要： A multicarrier communication method selects carriers on the basis of an SN-ratio and the balancing of a transmission line. Available carriers are selected in accordance with the balancing of the balanced transmission line, in which the balancing is measured at either a sending terminal or a receiving terminal or alternatively at both, and the SN-ratio is measured between the sending terminal and the receiving terminal. Additionally, a modulation method having the greatest permissible multivalue is selected for each of the carriers, wherein the carriers are selected in light of the SN-ratio and balancing, or alternatively in a highest-to-lowest order of frequency. Transmission power is controlled for each of the carriers to suppress radiated emission, and the SN-ratio and balancing are measured at predetermined time intervals to renew the selection of the carriers and the selection of the modulation methods.
摘要翻译：多载波通信方法基于SN比和传输线路的平衡来选择载波。根据平衡传输线的平衡来选择可用的载波，其中平衡在发送终端或接收终端处或在两者处测量，并且在发送终端和接收终端之间测量SN比。另外，对于每个载波，选择具有最大可允许多值的调制方法，其中根据SN比和平衡选择载波，或者以最高到最低频率的顺序选择载波。对每个载波控制发射功率以抑制辐射发射，并且以预定时间间隔测量SN比和平衡以更新载波的选择和调制方法的选择。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式