公开(公告)号：US20080062956A1

公开(公告)日：2008-03-13

申请号：US11976270

申请日：2007-10-23

申请人： Gou Kuroda ,  Akio Kurobe ,  Koji Ikeda ,  Kensuke Yoshizawa

发明人： Gou Kuroda ,  Akio Kurobe ,  Koji Ikeda ,  Kensuke Yoshizawa

IPC分类号： H04B7/212

CPC分类号： H04L12/2827 ,  H04L12/2803 ,  H04L63/08 ,  H04L2012/2841 ,  H04L2012/2843 ,  H04W12/06 ,  H04W74/006 ,  H04W74/02 ,  H04W84/12

摘要： A medium access control method is provided in which a control station transmits one specific frame to terminal stations, thereby arranging a schedule of a data transmission time of the control station and each of the terminal stations and allowing a time zone unused by a station for data transmission to be allocated to another station. The control station transmits a schedule frame having defined therein a time occupied by each of the terminal stations, thereby reducing overhead. Also, the completion of the preceding communication performed by another station is detected, thereby effectively using an idle time of a medium and improving transmission efficiency.

摘要翻译： 提供了一种介质访问控制方法，其中控制站向终端站发送一个特定帧，从而安排控制站和每个终端站的数据传输时间的调度，并允许站点未使用的时区用于数据 传输被分配给另一个站。 控制站发送在其中定义了每个终端站占用的时间的调度帧，从而减少开销。 此外，检测由另一个站执行的前述通信的完成，从而有效地使用介质的空闲时间并提高传输效率。

公开(公告)号：US20070086408A1

公开(公告)日：2007-04-19

申请号：US11524249

申请日：2006-09-21

申请人： Go Kuroda ,  Akio Kurobe ,  Koji Ikeda ,  Hisao Koga ,  Yuji Igata

发明人： Go Kuroda ,  Akio Kurobe ,  Koji Ikeda ,  Hisao Koga ,  Yuji Igata

IPC分类号： H04B7/208

CPC分类号： H04L12/2803 ,  H04B3/54 ,  H04B2203/5416 ,  H04B2203/5445 ,  H04L12/2838 ,  H04L2012/2843

摘要： A communication apparatus and a method are provided for easily enabling two communication systems having different communication schemes and using the same communication medium to coexist. An access coexistence signal for notifying an in-home communication system 110 and 130 of the presence of an access communication system 120, and an in-home coexistence signal for sharing frequency and time resources between a plurality of in-home communication systems 110 and 130, are used. Further, by transmitting the two coexistence signals asynchronously, a process of synchronizing the access communication system 120 and the in-home communication system 110 and 130 is no longer required.

摘要翻译： 提供通信装置和方法，用于容易地实现具有不同通信方案的两个通信系统并且使用相同的通信介质来共存。 用于通知家庭内通信系统110和130存在接入通信系统120的接入共存信号，以及用于在多个家庭内通信系统110和130之间共享频率和时间资源的室内共存信号 ，被使用。 此外，通过异步地发送两个共存信号，不再需要使接入通信系统120和家庭内通信系统110和130同步的过程。

公开(公告)号：US07158473B2

公开(公告)日：2007-01-02

申请号：US10844328

申请日：2004-05-13

申请人： Akio Kurobe ,  Koji Ikeda ,  Gou Kuroda ,  Kensuke Yoshizawa

发明人： Akio Kurobe ,  Koji Ikeda ,  Gou Kuroda ,  Kensuke Yoshizawa

IPC分类号： H04J9/00

CPC分类号： H04L49/3072 ,  H04L1/0003 ,  H04L1/1874 ,  H04L1/188 ,  H04L27/0004 ,  H04L27/2601 ,  H04W28/06

摘要： A transmitting/receiving apparatus includes a packet construction section for dividing continuous data into a plurality of subpackets, and constructing a packet by concatenating the plurality of subpackets; a modulation transmission section for modulating the constructed packet, and transmitting the modulated packet to another apparatus; a training session execution section for checking channel conditions, when a predetermined condition is satisfied, and changing a modulation rule; and a subpacket transmission confirmation section for confirming whether or not a subpacket included in the transmitted packet is transmitted successfully to the transmission destination apparatus. If the modulation rule is changed by the training session execution section, the packet construction section reconstructs a new packet by concatenating a subpacket, which is confirmed as an unsuccessfully-transmitted subpacket, with subpackets newly generated from the continuous data, and the modulation transmission section modulates the reconstructed new packet, and transmits the modulated packet.

摘要翻译： 发送/接收装置包括分组构成部分，用于将连续数据分割成多个子分组，并通过连接多个子分组来构建分组; 调制发送部分，用于调制构造的分组，并将调制分组发送到另一装置; 训练会话执行部，用于当满足预定条件时，检查信道条件，并改变调制规则; 以及子包发送确认部，用于确认发送包中包含的子分组是否被成功发送到发送目的地装置。 如果通过训练对话执行部改变了调制规则，则分组构成部通过将被确认为未成功发送的子分组的子分组连接到从连续数据新生成的子分组来重构新分组，并且调制发送部 调制重建的新分组，并发送调制分组。

公开(公告)号：US20060268790A1

公开(公告)日：2006-11-30

申请号：US11439251

申请日：2006-05-24

申请人： Go Kuroda ,  Akio Kurobe ,  Koji Ikeda ,  Hisao Koga ,  Yuji Igata

发明人： Go Kuroda ,  Akio Kurobe ,  Koji Ikeda ,  Hisao Koga ,  Yuji Igata

IPC分类号： H04B7/216

CPC分类号： H04B7/2643 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5445

摘要： A frequency band is divided into N subchannels. Sub-channels are first allocated for a power line communication system having a higher priority, such as public communication or the like. Sub-channels for a power line communication system having a relatively low priority, such as in-home communication or the like, are allocated from free subchannels. In this case, the subchannels used by the power line communication system having the high priority are limited to a plurality of consecutive subchannels from an upper side or a lower side of the frequency band.

摘要翻译： 频带分为N个子信道。 子信道首先被分配给具有较高优先级的电力线通信系统，诸如公共通信等。 从空闲子信道分配具有较低优先级的电力线通信系统的子信道，例如在家庭通信等。 在这种情况下，具有高优先级的电力线通信系统使用的子信道被限制在从频带的上侧或下侧的多个连续子信道。

公开(公告)号：US20060268705A1

公开(公告)日：2006-11-30

申请号：US11440014

申请日：2006-05-25

申请人： Akio Kurobe ,  Koji Ikeda ,  Go Kuroda ,  Hisao Koga ,  Yuji Igata

发明人： Akio Kurobe ,  Koji Ikeda ,  Go Kuroda ,  Hisao Koga ,  Yuji Igata

IPC分类号： H04L12/26

CPC分类号： H04W74/04 ,  H04B3/542 ,  H04B2203/5408 ,  H04B2203/5441 ,  H04B2203/5445 ,  H04B2203/5479

摘要： A coexistence controller which performs management and control of time division for coexistence, is provided in a power line communication modem which has a function as a QoS controller for a QoS type communication system and a power line communication modem for a best-effort type communication system. In the QoS type communication system, by controlling allocation of a communication band in accordance with priorities given to the communication systems by cooperation of the coexistence controller and the QoS controller, the power line communication systems having different schemes can coexist.

公开(公告)号：US06728918B1

公开(公告)日：2004-04-27

申请号：US09699424

申请日：2000-10-31

申请人： Koji Ikeda ,  Akio Kurobe ,  Go Kuroda

发明人： Koji Ikeda ,  Akio Kurobe ,  Go Kuroda

IPC分类号： G08C2502

CPC分类号： H04L5/16 ,  H04B7/2643 ,  H04L1/1809 ,  H04L69/324 ,  H04L2001/0092

摘要： In a relay transmission method and system, and a device used therefor, efficiently realizing relay transmission on a half-duplex transmission path while controlling retransmission, a transmitter on the transmission side receives a polling from a transmitter on the reception side, and then transmits a frame-numbered data frame to a relay transmitter. If a data frame is not normally received, the transmitter on the reception side generates a retransmission request asking for retransmission thereof, and outputs the request for the relay transmitter. If storing the requested data frame in its retransmission frame buffer, the relay transmitter deletes the data frame's frame number from the retransmission request, and then transfer the request. Thereafter, the relay transmitter adds, to the retransmitted data frame, the data frame whose frame number has been deleted during last transfer.

摘要翻译： 在中继传输方法和系统及其使用的装置中，在控制重发的同时有效地实现半双工传输路径上的中继传输，发送侧的发送机从接收侧的发送机接收轮询，然后发送 帧编号数据帧到中继发射机。 如果数据帧未被正常接收，则接收侧的发送机产生请求重传的重发请求，并输出对中继发送机的请求。 如果将请求的数据帧存储在其重发帧缓冲器中，则中继发送器从重传请求中删除数据帧的帧号，然后传送请求。 此后，中继发送器将最后传送中的帧编号已经被删除的数据帧加到重传的数据帧。

公开(公告)号：US06389073B1

公开(公告)日：2002-05-14

申请号：US09287337

申请日：1999-04-07

申请人： Akio Kurobe ,  Shoichi Masaki

发明人： Akio Kurobe ,  Shoichi Masaki

IPC分类号： H04N750

CPC分类号： H04N19/152 ,  H04N19/126 ,  H04N19/139 ,  H04N19/146 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

摘要： In a coding control apparatus deciding, when coding of motion picture data on the basis of a generated information amount Aig of coded data generated by coding one frame, a quantization characteristic to be used for coding a next frame, a threshold comparison part compares the generated information amount Aig with upper bound and lower bound thresholds Th_U and Th_L, and on the basis of the comparison result, a quantization characteristic decision part decides the quantization characteristic to be used for coding the next frame. In other words, the quantization characteristic decision part divides each frame of the motion picture data previously into a plurality of areas and classifies the plurality of areas in each frame into a first group and a second group, and sets, in response to the aforementioned comparison result, the same quantization characteristic for the first and second groups, or sets one of most approximate two different quantization characteristics for the first group and the other one for the second group respectively. Due to such a structure, a quantization state corresponding to the average quantization characteristic of most approximate two quantization characteristics q(s) and q(s+1) can be created, whereby precision of coding control improves.

摘要翻译： 在编码控制装置中，在根据生成的编码数据的生成信息量Aig对用于编码下一帧的量化特性的运动图像数据进行编码时，判定阈值比较部， 具有上限和下限阈值Th_U和Th_L的信息量Aig，并且基于比较结果，量化特征决定部分决定用于对下一帧进行编码的量化特性。 换句话说，量化特性决定部分将运动图像数据的每一帧先前划分为多个区域，并将每个帧中的多个区域分成第一组和第二组，并且响应于上述比较 结果，相同的第一和第二组的量化特性，或者分别为第一组和第二组中的另一组分别设置最接近两个不同的量化特征之一。 由于这样的结构，可以创建与最近近似的两个量化特性q（s）和q（s + 1）的平均量化特性对应的量化状态，从而提高编码控制的精​​度。

公开(公告)号：US06333948B1

公开(公告)日：2001-12-25

申请号：US09247081

申请日：1999-02-09

申请人： Akio Kurobe ,  Shoichi Masaki

发明人： Akio Kurobe ,  Shoichi Masaki

IPC分类号： H04N736

CPC分类号： H04N19/61 ,  H04N19/107 ,  H04N19/503

摘要： In a video coding apparatus coding a motion picture while switching a coding mode between an INTER coding mode and an INTRA coding mode, a motion information management part determines whether or not there is motion exceeding a prescribed threshold in an object in each region of m groups of blocks in each frame of the motion picture during a lapse of a prescribed time T from a prescribed point. On the basis of the result of this determination, a whole-group refresh part performs whole-group refresh (INTRA coding in one frame) on a group of blocks of a region having motion exceeding the threshold, and a dispersed refresh part performs dispersed refresh (INTRA coding in frames varying with the block) on a group of blocks of a region having no motion exceeding the threshold. Thus, appearance of a disturbance line is avoided and influence by a transmission error is eliminated in a short time while reducing increase of a coding quantity resulting from refresh.

摘要翻译： 在在INTER编码模式和INTRA编码模式之间切换编码模式的情况下编码运动画面的视频编码装置中，运动信息管理部件确定在m组的每个区域中是否存在超过规定阈值的运动 在规定时间T从规定点开始的运动图像的每帧中的块。 基于该确定的结果，全组刷新部分对运动超过阈值的区域的一组块执行全组刷新（一帧中的INTRA编码），并且分散刷新部分执行分散刷新 （在块中变化的帧中的INTRA编码）在没有运动超过阈值的区域的一组块上。 因此，避免了在短时间内消除了传输误差的影响，同时减少了刷新导致的编码量的增加。

公开(公告)号：US5592225A

公开(公告)日：1997-01-07

申请号：US314334

申请日：1994-09-28

申请人： Akio Kurobe

发明人： Akio Kurobe

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/32 ,  H04N7/46 ,  H04N7/50

CPC分类号： H04N19/587 ,  H04N19/126 ,  H04N19/132 ,  H04N19/152 ,  H04N19/154 ,  H04N19/172 ,  H04N19/61 ,  H04N19/124 ,  H04N19/146 ,  H04N19/50

摘要： A coding rate upper limit value storing unit and a coding rate lower limit value storing unit store a pair of a preset quantization accuracy and an upper limit value and a lower limit value on a coding rate corresponding to the preset quantization accuracy respectively. A coding rate calculating unit calculates a coding rate based on a code amount generated for a frame which was coded the last time. A first comparator and a second comparator compare a coding rate calculated by the coding rate calculating unit with an upper limit value and a lower limit value on a coding rate corresponding to a quantization accuracy with which a frame was coded the last time respectively. If the coding rate from the coding rate calculating unit is greater than the upper limit value or is smaller than the lower limit value, a quantization accuracy which is more accurate or less accurate than the quantization accuracy with which a frame was coded the last time is selected from quantization accuracies respectively. If a quantization accuracy is in a range between the lower limit value and the upper limit value, the range including the lower limit value and the upper limit value, the quantization accuracy with which a frame was coded the last time is selected. A quantization accuracy directing unit outputs the thus selected quantization accuracy to a quantizing unit, and the quantizing unit performs coding with the received quantization accuracy.

摘要翻译： 编码率上限值存储单元和编码率下限值存储单元分别存储对应于预设量化精度的预设量化精度和上限值和下限值对的编码率。 编码率计算单元基于最后一次编码的帧产生的编码量来计算编码率。 第一比较器和第二比较器分别将由编码率计算单元计算出的编码率与对应于最后一次编码帧的量化精度的编码率相对应的编码率进行比较。 如果来自编码率计算单元的编码率大于上限值或小于下限值，则与最后一次对帧进行编码的量化精度更准确或更准确的量化精度为 从量化精度分别选择。 如果量化精度在下限值和上限值之间的范围内，则包括下限值和上限值的范围，选择最后一次对帧进行编码的量化精度。 量化精度定向单元将所选择的量化精度输出到量化单元，并且量化单元以接收到的量化精度进行编码。

公开(公告)号：US5363418A

公开(公告)日：1994-11-08

申请号：US900913

申请日：1992-06-18

申请人： Masatoshi Nakano ,  Akio Kurobe

发明人： Masatoshi Nakano ,  Akio Kurobe

IPC分类号： H04B1/02 ,  H04L5/24 ,  H04L25/40 ,  H04L25/38

CPC分类号： H04L25/40

摘要： This invention provides a start-stop synchronous data transmitter and a start-stop synchronous data receiver for transmitting a code consisting of a start bit, data, and a stop bit, wherein the data in a 1-bit interval is divided into a number of slots, to each of which different data are set so as to multiplex the data as many data as the number of the slots.

摘要翻译： 本发明提供了一种起始停止同步数据发送器和一个起始停止同步数据接收器，用于发送由起始位，数据和停止位组成的代码，其中1位间隔中的数据被分成若干个 时隙，其中各个不同的数据被设置为多路复用数据与槽数一样多的数据。