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    • 53. 发明申请
    • RELAY APPARATUS AND RELAY METHOD
    • 继电器和继电器
    • US20120057619A1
    • 2012-03-08
    • US13223846
    • 2011-09-01
    • Jiyun ShenYasuhiro OdaTamami MaruyamaTatsuo FurunoTomoyuki Ohya
    • Jiyun ShenYasuhiro OdaTamami MaruyamaTatsuo FurunoTomoyuki Ohya
    • H04B3/36
    • H04B7/15535
    • A relay apparatus is disclosed for relaying a signal from a transmitter to a receiver in a MIMO (Multiple Input Multiple Output) based communication system, comprising: a power difference determination unit configured to determine a difference of reception levels between a direct wave and a relayed wave based on positional relationship among the transmitter, the relay apparatus and the receiver, the direct wave traveling from the transmitter to the receiver without the relay apparatus, the relayed wave traveling from the transmitter to the receiver via the relay apparatus; a gain determination unit configured to determine an amplification gain of the relay apparatus to make the difference smaller; and a transmitting unit configured to amplify the signal from the transmitter at the determined amplification gain and transmit the amplified signal to the receiver.
    • 公开了一种用于在基于MIMO(多输入多输出)的通信系统中将来自发射机的信号中继到接收机的中继装置,包括:功率差确定单元,被配置为确定直接波与被中继的接收电平之间的接收电平的差 基于发射机,中继装置和接收机之间的位置关系的波形,直接波从发射机到没有中继装置的接收机,中继波经由中继装置从发射机传播到接收机; 增益确定单元,被配置为确定所述中继装置的放大增益以使所述差更小; 以及发送单元,被配置为以确定的放大增益放大来自发送器的信号,并将放大的信号发送到接收器。
    • 55. 发明授权
    • Data transmitter-receiver, bidirectional data transmitting system, and data transmitting-receiving method
    • 数据发送接收机,双向数据传输系统和数据发送接收方式
    • US07831209B2
    • 2010-11-09
    • US11372056
    • 2006-03-10
    • Yasuyo YasudaNobuhiko NakaTomoyuki OhyaToshio Miki
    • Yasuyo YasudaNobuhiko NakaTomoyuki OhyaToshio Miki
    • H04B1/38
    • H04S1/005H04R27/00H04S7/303H04S2400/01H04S2400/11H04S2420/01
    • To provide a data transmitter-receiver bidirectional transmitting system, and data transmitting-receiving method capable of reducing influences of a transmission delay when performing bidirectional communication with an other-communication-party apparatus in an environment in which various states are dynamically changed depending on time.A data obtaining portion 11 of a terminal 10 obtains positional directional information D(Tn) and a time information obtaining portion 12 obtains time information Tn. The terminal 10 stores D(Tn) and Tn in a memory portion 13 and a transmitting portion 15 transmits D(Tn) and Tn to a server 20. A data generating portion 21 of the server 20 generates stereophonic data S(Tn) by using D(Tn), a time information copying portion 22 copies Tn, a transmitting portion 24 transmits S(Tn) and Tn to the terminal 10. A data obtaining portion 11 of the terminal 10 obtains positional directional information D(Tm), the time information obtaining portion 12 obtains time information Tm, and a correcting portion 14 corrects the difference between D(Tm) and D(Tn) to generate S′(m).
    • 提供一种数据收发双向发送系统和数据发送接收方法,能够在各种状态根据时间动态变化的环境中与其他通信方装置进行双向通信时减少传输延迟的影响 。 终端10的数据获取部分11获得位置方向信息D(Tn),时间信息获取部分12获得时间信息Tn。 终端10将D(Tn)和Tn存储在存储器部分13中,并且发送部分15将D(Tn)和Tn发送到服务器20.服务器20的数据产生部分21通过使用产生立体声数据S(Tn) D(Tn),时间信息复制部分22复制Tn,发送部分24向终端10发送S(Tn)和Tn。终端10的数据获取部分11获得位置方向信息D(Tm) 信息获取部分12获得时间信息Tm,并且校正部分14校正D(Tm)和D(Tn)之间的差异以产生S'(m)。
    • 56. 发明授权
    • Method and apparatus for distributing content data over a network
    • 用于通过网络分发内容数据的方法和装置
    • US06952712B2
    • 2005-10-04
    • US10305987
    • 2002-11-29
    • Takeshi YoshimuraYoshifumi YonemotoMinoru EtohTomoyuki Ohya
    • Takeshi YoshimuraYoshifumi YonemotoMinoru EtohTomoyuki Ohya
    • G06F12/00G06F13/00G06F15/00G06F17/30H04L12/54G06F15/16
    • H04L67/06G06F17/30902H04L67/18H04L67/28H04L67/2823H04L67/2842
    • A content distribution system includes plurality of cache server apparatus configured to obtain content from a distribution apparatus, and to store the content temporarily; a location information data storage unit configured to store location information data, which indicates location information of each cache server apparatus; a description data storage unit configured to store at least one item of description data, which includes the location information of a distribution apparatus; a converter configured to convert the location information of a distribution apparatus storing a requested content, which is included in description data, into location information of a specified cache server apparatus, by referring to the location information data; and a reception terminal apparatus configured to obtain the description data converted by the converter, and to receive the requested content from the specified cache server apparatus.
    • 内容分发系统包括多个缓存服务器装置,被配置为从分发装置获取内容,并临时存储内容; 位置信息数据存储单元,被配置为存储指示每个高速缓存服务器装置的位置信息的位置信息数据; 描述数据存储单元,被配置为存储包括分发装置的位置信息的至少一个描述数据项; 转换器,被配置为通过参考所述位置信息数据将存储在描述数据中的请求内容的分发装置的位置信息转换成指定的高速缓存服务器装置的位置信息; 以及接收终端装置,被配置为获得由转换器转换的描述数据,并从指定的高速缓存服务器装置接收所请求的内容。
    • 57. 发明申请
    • Apparatus and method for voice activity detection
    • 语音活动检测装置及方法
    • US20050171769A1
    • 2005-08-04
    • US11019314
    • 2004-12-23
    • Nobuhiko NakaTomoyuki Ohya
    • Nobuhiko NakaTomoyuki Ohya
    • G10L11/02G10L15/00G10L15/04H04M1/00G10L11/06
    • G10L25/78
    • A voice activity detection apparatus enabling the decision on active interval accurately regardless of time elapse is sought. Apparatus 10 comprises autocorrelation calculating unit 11 calculating autocorrelation value of input signal, delay calculating unit 12 calculating delay for calculated autocorrelation value becoming maximum, noise deciding unit 13 deciding whether input signal is noise or not based on calculated delay, noise estimating unit 14 estimating noise from input signal, activity deciding unit 15 performing activity decision regarding input signal based on result of decision by noise deciding unit 13, noise estimated by noise estimating unit 14, and input signal, and a sound interval detecting unit 16 counting time duration of active interval based on decision result by deciding unit 15. In case of time duration of active interval reaches a predetermined period or more, noise estimating unit 14 changes noise estimating method such that input signal is likely decided as active.
    • 寻求能够准确地决定有效间隔而不考虑时间的语音活动检测装置。 设备10包括自动相关计算单元11,计算输入信号的自相关值,延迟计算单元12计算计算的自相关值变为最大的延迟,噪声判定单元13基于计算的延迟来判定输入信号是否为噪声,噪声估计单元14估计噪声 从输入信号,活动判定部15基于噪声判定部13的判定结果,由噪声估计部14估计出的噪声,输入信号,进行与输入信号有关的动作决定,以及声音间隔检测部16,计算有效间隔的持续时间 基于决定单元15的判定结果。 在有效间隔的持续时间达到预定时间段的情况下,噪声估计单元14改变噪声估计方法,使得输入信号可能被确定为有效。
    • 58. 发明授权
    • Variable length coded data transmission device, transmitter side device,
receiver side device, and method thereof
    • 可变长度编码数据传输设备,发射机侧设备,接收机侧设备及其方法
    • US6115425A
    • 2000-09-05
    • US969318
    • 1997-11-13
    • Satoru AdachiTomoyuki Ohya
    • Satoru AdachiTomoyuki Ohya
    • H04J3/06H04B14/04
    • H04J3/0605
    • In order to transmit variable length coded data blocks while reducing data loses caused by code errors, the control circuit 7 makes a group of a plurality of variable length coded data, a fixing length circuit 9 fixes the code length of each of the variable length coded data thus grouped so that the data blocks each have an average code length and then makes a group of the data blocks in that condition, a header outputting circuit 8 prepares a header including information on the grouped data blocks and a synchronization word, and a control circuit 7 controls a switch SWC so that the prepared header and the group of data blocks are output through an output terminal 2. On the decoding side, the data blocks are synchronized/decoded by obtaining the code length of the group of data blocks and the number of the data blocks with reference to the location of the synchronization word in the header and information on the data blocks.
    • 为了在减少由错误引起的数据丢失的同时发送可变长度编码数据块,控制电路7形成多组可变长度编码数据的组,固定长度电路9将可变长度编码数据中的每一个的码长固定 如此分组的数据使得数据块各具有平均码长,然后在该条件下形成一组数据块,标题输出电路8准备包括关于分组数据块和同步字的信息的报头,以及控制 电路7控制开关SWC,使得准备好的报头和数据块组通过输出端子2输出。在解码侧,通过获得数据块组的代码长度来同步/解码数据块,并且 参考头部中的同步字的位置和关于数据块的信息的数据块的数量。
    • 59. 发明授权
    • Speech information freeze-out control method and equipment in mobile
satellite communication system
    • 移动卫星通信系统中的语音信息冻结控制方法和设备
    • US5745492A
    • 1998-04-28
    • US591458
    • 1996-01-31
    • Yoshinobu NakamuraYutaka OhtoTakashi UedaTomoyuki Ohya
    • Yoshinobu NakamuraYutaka OhtoTakashi UedaTomoyuki Ohya
    • H04B7/185H04B7/212H04J3/17H04B7/26H04B7/15H04J3/00
    • H04B7/18532H04B7/212H04J3/177
    • A speech freeze-out method in a communication system for transmitting speech information, which is sent from public telephone terminals (1) to a control center (5) through voice channels, from the control center (5) to a base station (8) through time division multiplexing radio frequency channels (6), and from the base station (8) to mobile stations (17) through transponders (13). The freeze-out processing is carried out when the control center (5) feeds the speech information to the time division multiplexing radio frequency channels (6) so that the number of transmission channels from the base station (8) to the transponders (13) is limited within an upper limit value. The control center (5) sequentially detects the presence and absence of a speech spurt in each frame of respective voice channels during each time slot of the time division multiplexing radio frequency channels, counts the number of the channels including the speech spurt, and performs the speech freeze-out processing when the count value exceeds the upper limit value. The number of transmission channels from the base station (8) to the transponders (13) is positively limited within the upper limit value.
    • PCT No.PCT / JP95 / 01446 Sec。 371日期1996年1月31日 102(e)日期1996年1月31日PCT提交1995年7月20日PCT公布。 公开号WO96 / 03816 日期1996年2月8日在用于从控制中心(5)向控制中心(5)发送从公用电话终端(1)到控制中心(5)通过语音信道发送的语音信息的通信系统中的语音冻结方法 基站(8)通过时分复用射频信道(6),以及从基站(8)到移动台(17)通过应答器(13)。 当控制中心(5)将语音信息馈送到时分复用射频信道(6)时,执行冻结处理,使得从基站(8)到应答器(13)的传输信道的数量 被限制在上限值内。 控制中心(5)在时分复用射频信道的每个时隙期间顺序地检测各个语音信道的每个帧中是否存在语音突发,对包括语音突发的信道数进行计数,并执行 当计数值超过上限值时的语音冻结处理。 从基站(8)到应答器(13)的传输信道的数量被肯定地限制在上限值内。