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    • 1. 发明授权
    • ADSL modem
    • ADSL调制解调器
    • US06778595B1
    • 2004-08-17
    • US09641124
    • 2000-08-16
    • Yasuhiro AraiKumiko MaruoMasato HoriTakashi SasakiAkira Oshima
    • Yasuhiro AraiKumiko MaruoMasato HoriTakashi SasakiAkira Oshima
    • H04M1100
    • H04M11/062
    • An ADSL modem connected to the telephone line is disclosed, which even in the case where a plurality of ADSL modems are connected to a single telephone line installed in a SOHO application or in the home of an ordinary user, a stable high-speed data communication can be realized without superposing the signals between the ADSL models or without causing any impedance mismatch. An ADSL band signal detector (11) detects whether the ADSL frequency band is occupied by another ADSL modem connected to the telephone line or not. Upon detection that the ADSL frequency is so occupied, a control unit (12, 13) suppresses the application of the signal energy to the ADSL frequency band.
    • 公开了连接到电话线的ADSL调制解调器,即使在将多个ADSL调制解调器连接到安装在SOHO应用中的单个电话线路或普通用户的家庭中的情况下,也可以使用稳定的高速数据通信 可以在不叠加ADSL模型之间的信号的情况下实现,也可以不引起任何阻抗失配。 ADSL频带信号检测器(11)检测ADSL频带是否被连接到电话线的另一个ADSL调制解调器所占用。 在检测到ADSL频率如此被占用时,控制单元(12,13)抑制对ADSL频带的信号能量的应用。
    • 2. 发明授权
    • Fast retraining method, apparatus, and storage medium in an xDSL transceiver
    • xDSL收发器中的快速再培训方法,设备和存储介质
    • US06760368B1
    • 2004-07-06
    • US09536526
    • 2000-03-28
    • Yasuhiro AraiMasato Hori
    • Yasuhiro AraiMasato Hori
    • H04L514
    • H04L5/1438H04L27/2601
    • The process in an xDSL transceiver transfers into a fast retraining sequence when the cause of an error on a telephone circuit is a change from an off hook state to an on hook state of a telephone instrument, a signal indicating an inversion of polarity of a signal on the telephone circuit, a change from an on hook to an off hook and when a handshake waiting time has passed without detecting a predetermined signal on the telephone circuit, or when the predetermined signal is detected within the handshake waiting time. The handshake waiting time can be updated in accordance with a dial pulse width, the maximum number of digits in the dial pulse signal, and the maximum number of pulses in one digit, or depending on whether or not the dial pulse comes from NTT.
    • 当电话线路上出现错误的原因是从电话机的摘机状态变为挂机状态时,xDSL收发器中的进程转移到快速再训练序列中,指示信号极性反转的信号 在电话电路上,从挂机到摘机的变化,以及当握手等待时间过去而不检测到电话电路上的预定信号时,或者当在握手等待时间内检测到预定信号时。 握手等待时间可以根据拨号脉冲宽度,拨号脉冲信号中的最大位数和一位数的最大脉冲数来更新,或根据拨号脉冲是否来自NTT来更新。
    • 3. 发明申请
    • Packet transmission control method, packet transmission control apparatus and packet transmission control program product
    • 分组传输控制方法,分组传输控制装置和分组传输控制程序产品
    • US20060023714A1
    • 2006-02-02
    • US11189696
    • 2005-07-27
    • Masato Hori
    • Masato Hori
    • H04L12/56
    • H04L29/06027H04L65/80
    • According to an embodiment, previous data group input time is subtracted from current data group input time in order to obtain a difference time each time a data group is input. The difference time is subtracted from a packet transmission interval in order to obtain an interval difference. The interval difference is added to a total difference time. If the total difference time is not greater than the first predetermined value, then the input data group is transmitted as a packet. Otherwise, the input data group is discarded and the total difference time is initialized to a value obtained by subtracting the packet transmission interval from the first predetermined value, if the total difference time is greater than the first predetermined value.
    • 根据实施例,从当前数据组输入时间中减去先前的数据组输入时间,以便在每次输入数据组时获得差分时间。 从分组发送间隔中减去差分时间,以获得间隔差。 间隔差被添加到总的差异时间。 如果总差时间不大于第一预定值,则输入数据组作为分组发送。 否则,如果总差时间大于第一预定值,则总差分时间被初始化为从第一预定值减去分组传输间隔所获得的值。
    • 6. 发明申请
    • Frame transmitting/receiving method and device
    • 帧发送/接收方法和装置
    • US20070201507A1
    • 2007-08-30
    • US11502536
    • 2006-08-11
    • Yukio YamazakiMasato HoriWaki Iwata
    • Yukio YamazakiMasato HoriWaki Iwata
    • H04J15/00
    • H04J3/0608H04J3/047H04J3/12H04J3/1611H04J2203/0089
    • A frame transmitting method and device insert a channel identifier into predetermined free bytes of parallel channel signals whose phases are different from each other without a phase adjustment, and convert the parallel channel signals into a serial signal to transmit a frame. A frame receiving method and device convert a serial signal whose phase is not adjusted on the transmission side into parallel channel signals, detect a frame pattern from a single channel signal within the parallel channel signals to detect a channel identifier inserted into a predetermined free byte of the single channel signal, and further rearrange channels between all of the parallel channel signals without a phase adjustment, based on the channel identifier.
    • 帧发送方法和装置将信道标识符插入到相位不相位调整的相位不同的预定空闲字节的并行信道信号中,并且将并行信道信号转换为串行信号以发送帧。 帧接收方法和装置将在发送侧未调整相位的串行信号转换为并行信道信号,从并行信道信号内的单个信道信号中检测帧模式,以检测插入到预定空闲字节的信道标识符 单信道信号,并且基于信道标识符,进一步重新排列所有并行信道信号之间的信道,而不进行相位调整。
    • 10. 发明授权
    • VoIP system, VoIP server and client, and multicast packet communication method
    • VoIP系统,VoIP服务器和客户端,以及组播数据包通信方式
    • US07801134B2
    • 2010-09-21
    • US10864519
    • 2004-06-10
    • Masato HoriYoshikazu Kobayashi
    • Masato HoriYoshikazu Kobayashi
    • H04L12/28
    • H04L65/4076H04L29/06027H04L65/403H04M3/4285H04M3/56H04M7/006H04M15/56H04M2215/202H04M2215/2073
    • A VoIP system has a VoIP server and plural clients. The client transmits paging data as multicast packets addressed at a specific multicast address, to other clients. In response to a request from the client, the VoIP server transmits multicast packets of MOH data to the other clients. At this time, whether the other clients can receive multicast packets is determined. To the clients that are determined to be capable of receiving multicast packets, transmission data is sent in the form of multicast packets. To the client which belongs to a router and is determined to be incapable of receiving multicast packets, the transmission data is sent as unicast packets. It is thus possible for the VoIP system to support paging and MOH in the form of multicast packets, with respect to clients incapable of receiving multicast.
    • VoIP系统具有VoIP服务器和多个客户端。 客户端将寻呼数据作为组播数据包发送到其他客户端。 响应于客户端的请求,VoIP服务器向其他客户端发送MOH数据的组播数据包。 此时,确定其他客户端是否可以接收组播数据包。 对于确定能够接收组播数据包的客户端,以组播数据包的形式发送传输数据。 对于属于路由器并被确定为不能接收多播分组的客户端,发送数据作为单播分组发送。 因此,对于不能接收多播的客户端,VoIP系统可以以组播分组的形式来支持寻呼和MOH。