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    • 2. 发明专利
    • Communication device and communication network system
    • 通信设备和通信网络系统
    • JP2012205047A
    • 2012-10-22
    • JP2011067271
    • 2011-03-25
    • Mitsubishi Electric Corp三菱電機株式会社
    • NAITO MASAHIROKISHIMA JUNKO
    • H04L12/407
    • PROBLEM TO BE SOLVED: To provide a communication device capable of avoiding conflict of the signals transmitted to a transmission medium from communication devices of different kind which have a different communication method among others.SOLUTION: A communication network system includes a communication device which uses a first frequency band and operates by a first communication method, and a communication device 20 which uses a second frequency band and operates by a second communication method. The communication device 20 includes a waveform generating circuit 26 which generates a notification signal of a third frequency band different from the first frequency band and generates a transmission signal of the second frequency band from a transmission data according to the second communication method, and a transmission circuit 27. The transmission circuit 27, after transmitting the notification signal to a transmission medium 2, transmits the transmission signal of the second frequency band to the transmission medium 2. The communication device that operates by the first communication method detects the notification signal transmitted to the transmission medium 2 from the transmission circuit 27 of the communication device 20 that operates by the second communication method according to the first communication method.
    • 要解决的问题:提供一种能够避免与具有不同通信方式的不同种类的通信装置发送到传输介质的信号的冲突的通信装置。 解决方案:通信网络系统包括使用第一频带并通过第一通信方法操作的通信设备,以及使用第二频带并通过第二通信方法操作的通信设备20。 通信装置20包括:波形生成电路26,生成与第一频带不同的第三频带的通知信号,并根据第二通信方式从发送数据生成第二频带的发送信号, 发送电路27在将通知信号发送到发送媒体2之后,将第二频带的发送信号发送到发送媒体2.通过第一通信方式进行动作的通信装置,检测发送到 来自根据第一通信方法的通过第二通信方法操作的通信设备20的发送电路27的传输介质2。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Data transmitting/receiving device and data transmitting/receiving method
    • 数据发送/接收设备和数据发送/接收方法
    • JP2012199745A
    • 2012-10-18
    • JP2011062086
    • 2011-03-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • KASAHARA HIROSHIKISHIMA JUNKONAITO MASAHIRO
    • H04W72/04H04L29/08
    • PROBLEM TO BE SOLVED: To provide a technique to efficiently communicate a response message such as ACK.SOLUTION: A data transmitting/receiving device 160 comprises: a first IF unit 168 connected to a network; a data transmitting/receiving control circuit 164 for performing processing to transmit and receive data to/from a client terminal connected to the network via the first IF unit 168; a band allocation control circuit 165 for allocating a band which the client terminal can transmit and receive data; and a transmitting/receiving timing control circuit 163 for generating a schedule indicating the band allocated by the band allocation control circuit 165 and for having the schedule sent to the client terminal. The band allocation control circuit 165 allocates a band for response in advance if the response from a client terminal is expected relative to data which the data transmitting/receiving control circuit 164 had sent to the client terminal via the first IF unit 168.
    • 要解决的问题:提供一种有效地传达诸如ACK的响应消息的技术。 解决方案:数据发送/接收设备160包括:连接到网络的第一IF单元168; 数据发送/接收控制电路164,用于执行经由第一IF单元168向/从连接到网络的客户端发送和接收数据的处理; 用于分配客户终端可以发送和接收数据的频带的频带分配控制电路165; 以及发送/接收定时控制电路163,用于生成指示由频带分配控制电路165分配的频带并且将调度发送到客户终端的调度。 频带分配控制电路165如果来自客户终端的响应相对于数据发送/接收控制电路164经由第一IF单元168发送到客户终端的数据而预先分配用于响应的频带。 版权所有(C)2013,JPO&INPIT
    • 4. 发明专利
    • Information distribution system
    • 信息分发系统
    • JP2011259275A
    • 2011-12-22
    • JP2010132857
    • 2010-06-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • NAITO MASAHIROKISHIMA JUNKOSUKENO JUNJIKOIKE MASAHIDE
    • H04L12/28B61L25/02H04L12/403
    • PROBLEM TO BE SOLVED: To prevent excess in traffic of a network in a vehicle, and enable efficient transmission of information to a device connected to the network in the vehicle.SOLUTION: Management information is transmitted from a distribution control device 130 to information display devices 150A, 150B, 150C, and 150D via a wired vehicle network 170. Video information is transmitted from the distribution control device 130 to one information display device 150A via a wireless network 171. The information display devices 150A, 150B, 150C and 150D transfer the video information depending on the sequence indicated by the management information. When the transfer of the video information is completed, the information display device 150D transmits an update completion notification to the distribution control device 130.
    • 要解决的问题:为了防止车辆中网络的流量过多,并且能够有效地将信息传输到与车辆中的网络连接的设备。 解决方案:管理信息经由有线车辆网络170从分发控制装置130发送到信息显示装置150A,150B,150C和150D。视频信息从分配控制装置130发送到一个信息显示装置150A 信息显示装置150A,150B,150C和150D根据由管理信息指示的顺序传送视频信息。 当视频信息的传送完成时,信息显示装置150D向分发控制装置130发送更新完成通知。版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Data receiver and data receiving method
    • 数据接收器和数据接收方法
    • JP2007325077A
    • 2007-12-13
    • JP2006154588
    • 2006-06-02
    • Mitsubishi Electric Corp三菱電機株式会社
    • KASAHARA HIROSHIINOUE YOSHIYUKIHASHIZUME YASUYUKIKISHIMA JUNKONAITO MASAHIROSUGANO MIKIKIZU NAOKI
    • H04L29/06
    • PROBLEM TO BE SOLVED: To provide a data receiver and data receiving method in which preferential processing data with a great limitation in a data delay amount can be preferentially repeated without being affected by a stored processing SN. SOLUTION: The data receiver judges whether or not reception data are normally received (S1) in a reception timing generated by a reception timing generating means, extracts and analyzes a sequence number SN and priority flag information from header information of the reception data. Based on a judgement result of whether the reception data are normally received and the SN and priority flag information, a processing SN that is the SN of reception data to be next repeated is stored (S3-S5) and when the judgement result of whether the reception data are normally received shows that the data are normally received (S1) and the reception data are judged as preferential processing data (S2), processing is performed to preferentially repeat the reception data judged as the preferential processing data without being affected by the stored processing SN (S7) and the preferentially processed SN is stored (S8). COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种数据接收机和数据接收方法,其中可以优先重复数据延迟量的极大限制的优先处理数据,而不受存储的处理SN的影响。 解决方案:数据接收机在由接收定时产生装置产生的接收定时中判断是否正常接收到接收数据(S1),从接收数据的标题信息中提取和分析序列号SN和优先级标志信息 。 基于接收数据是否正常接收的判定结果和SN和优先级标志信息,存储作为接下来重复的接收数据的SN的处理SN(S3-S5),当判断结果是否 通常接收的接收数据表示数据被正常接收(S1),接收数据被判定为优先处理数据(S2),执行处理以优先重复判断为优先处理数据的接收数据,而不受存储的 存储处理SN(S7)和优先处理的SN(S8)。 版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Data transmitter/receiver and data transmitting/receiving method
    • 数据发送器/接收器和数据发送/接收方法
    • JP2007267082A
    • 2007-10-11
    • JP2006089940
    • 2006-03-29
    • Mitsubishi Electric Corp三菱電機株式会社
    • INOUE YOSHIYUKIHASHIZUME YASUYUKIKISHIMA JUNKONAITO MASAHIROSUGANO MIKIKIZU NAOKIKASAHARA HIROSHI
    • H04L1/16H04L12/28H04L29/02
    • PROBLEM TO BE SOLVED: To provide a data transmitter/receiver and a method for suppressing unnecessary data retention time in a data receiver when retransmission control is executed. SOLUTION: In the data transmitter/receiver which performs communication with equipment connected to a network based on schedules periodically output from a management terminal and transmits/receives data to which a sequence number indicating continuity of transmission data and header information including information indicating whether or not retransmission is required is added, when a receiving slot for an ACK/NACK frame for transmission confirmation is not scheduled in a receiving slot scheduled by the received FCH (a step S81), it is determined that MAC frame data transmitted from the management terminal to the previous frame is a transmission confirmation unnecessary frame (a step S83) to execute the retransmission control. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种数据发送器/接收器以及在执行重发控制时在数据接收器中抑制不必要的数据保持时间的方法。 解决方案:在基于从管理终端周期性输出的时间表上执行与连接到网络的设备的通信的数据发射机/接收机中,发送/接收指示发送数据的连续性的序列号和包括表示 添加是否需要重传,当在由接收的FCH调度的接收时隙中未调度用于传输确认的ACK / NACK帧的接收时隙(步骤S81)时,确定从 前一帧的管理终端是执行重传控制的发送确认无用帧(步骤S83)。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Data communication device
    • 数据通信设备
    • JP2009135851A
    • 2009-06-18
    • JP2007311976
    • 2007-12-03
    • Mitsubishi Electric Corp三菱電機株式会社
    • KISHIMA JUNKONAITO MASAHIROIIDA TAKEHIRO
    • H04L12/28H04L29/08
    • PROBLEM TO BE SOLVED: To provide a data communication device for eliminating imbalance between terminals that is caused by a transmission request-quality class to which data to be transmitted belong. SOLUTION: If the sum of a band request is greater than a maximum allocated band in a step (S11), an output of a sum-of-product processing portion 14 is compared with the maximum allocated band in a step (S13). If the output of the sum-of-product processing portion 14 is greater than the maximum allocated band in the step (S13), each weighting coefficient (Krp) is updated to be a value multiplied by a certain constant (Dec) so that the weighting coefficient (Krp) becomes small in steps (S14-S16). COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种用于消除由要传输的数据所属的传输请求质量等级引起的终端之间的不平衡的数据通信设备。 解决方案:如果在步骤(S11)中频带请求的总和大于最大分配频带,则在步骤(S13)中将乘积处理部分14的输出与最大分配频带进行比较 )。 如果步骤(S13)中产品总和处理部分14的输出大于最大分配频带,则每个加权系数(Krp)被更新为乘以某个常数(Dec)的值,使得 加权系数(Krp)在步骤中变小(S14-S16)。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Data transmission and reception apparatus
    • 数据传输和接收设备
    • JP2009027327A
    • 2009-02-05
    • JP2007186907
    • 2007-07-18
    • Mitsubishi Electric Corp三菱電機株式会社
    • INOUE YOSHIYUKIKASAHARA HIROSHIHASHIZUME YASUYUKIKISHIMA JUNKONAITO MASAHIROSUGANO MIKI
    • H04L12/28
    • PROBLEM TO BE SOLVED: To provide a data transmission and reception apparatus which can transmit a video stream without interruption until a network is reestablished while keeping synchronization between client terminals even if a management terminal stops operation by being shut down or for other reasons during the transmission of the video stream between the client terminals. SOLUTION: When a BCH is detected, the CPU 11 of each client terminal corrects a reference clock time based on the reference clock time information of the management terminal 1 which is added on to the BCH (S51). When no BCH is detected or when detection is repeated until the internal clock time of the local unit reaches a BCH reception time and no BCH is still detected (S52), the CPU 11 of each client terminal notifies the detection to a PLC network control data generating circuit 408 and a PLC reception timing generating circuit 507 accordingly to instruct them to generate an internal reference clock time based on the error information measured previously. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种数据发送和接收装置,其可以在不间断地发送视频流的同时,直到重新建立网络,同时保持客户终端之间的同步,即使管理终端通过关闭停止操作或出于其他原因 在客户端之间的视频流传输期间。 解决方案:当检测到BCH时,每个客户终端的CPU 11基于添加到BCH的管理终端1的参考时钟时间信息来校正参考时钟时间(S51)。 当没有检测到BCH或者直到本地单元的内部时钟时间达到BCH接收时间并且仍然没有检测到BCH(S52)为止重复检测时(S52),每个客户终端的CPU 11向PLC网络控制数据通知检测 相应地生成电路408和PLC接收定时产生电路507,以指示它们基于先前测量的误差信息产生内部基准时钟时间。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Test circuit of functional block, and integrated circuit device
    • 功能块测试电路和集成电路设备
    • JP2007298439A
    • 2007-11-15
    • JP2006127470
    • 2006-05-01
    • Mitsubishi Electric Corp三菱電機株式会社
    • SUGANO MIKIINOUE YOSHIYUKIHASHIZUME YASUYUKIKIZU NAOKIKASAHARA HIROSHIKISHIMA JUNKONAITO MASAHIRO
    • G01R31/28H01L21/822H01L27/04
    • PROBLEM TO BE SOLVED: To provide a test circuit of a functional block for performing test of a plurality of kinds of functional blocks, while suppressing the increase in circuit scale of an integrated circuit device, and to provide the integrated circuit device. SOLUTION: The test circuit 130 has a serial data signal input terminal 134a, the control signal input terminal 134b, a serial and parallel conversion circuit 131, a bus master interface circuit 133, a parallel and serial conversion circuit 132, a serial data signal output terminal 135a, and a serial data state signal output terminal 136. A circuit 133 receives the output of the serial and parallel conversion circuit 131 to generate a bus control signal during data writing and outputs to the functional block 120 via a bus; receives the output of the serial and parallel conversion circuit 131 to generate bus control signal so as to receive the output and output to the functional block during data reading; outputs a signal output, from the functional block to the parallel and serial conversion circuit 132; and outputs a serial data state signal. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供用于执行多种功能块的测试的功能块的测试电路,同时抑制集成电路器件的电路规模的增加,并提供集成电路器件。 解决方案:测试电路130具有串行数据信号输入端子134a,控制信号输入端子134b,串行和并行转换电路131,总线主机接口电路133,并行和串行转换电路132,串行 数据信号输出端子135a和串行数据状态信号输出端子136.电路133接收串行和并行转换电路131的输出,以在数据写入期间产生总线控制信号,并通过总线输出到功能块120; 接收串行和并行转换电路131的输出以产生总线控制信号,以在数据读取期间接收输出并输出到功能块; 从功能块输出到并行和串行转换电路132的信号输出; 并输出串行数据状态信号。 版权所有(C)2008,JPO&INPIT