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    • 1. 发明申请
    • Sound source separating device, method, and program
    • 声源分离装置,方法和程序
    • US20070223731A1
    • 2007-09-27
    • US11700157
    • 2007-01-31
    • Masahito TogamiAkio AmanoTakashi Sumiyoshi
    • Masahito TogamiAkio AmanoTakashi Sumiyoshi
    • H04R3/00H04R1/02
    • H04R3/005
    • Conventional independent component analysis has had a problem that performance deteriorates when the number of sound sources exceeds the number of microphones. Conventional l1 norm minimization method assumes that noises other than sound sources do not exist, and is problematic in that performance deteriorates in environments in which noises other than voices such as echoes and reverberations exist. The present invention considers the power of a noise component as a cost function in addition to an l1 norm used as a cost function when the l1 norm minimization method separates sounds. In the l1 norm minimization method, a cost function is defined on the assumption that voice has no relation to a time direction. However, in the present invention, a cost function is defined on the assumption that voice has a relation to a time direction, and because of its construction, a solution having a relation to a time direction is easily selected.
    • 传统的独立分量分析存在的问题是,当声源的数量超过麦克风的数量时,性能会恶化。 常规的l1范数最小化方法假设不存在除声源之外的噪声,并且在存在诸如回声和混响的声音之外的环境的环境中性能恶化是有问题的。 除了作为成本函数的l1范数之外,本发明考虑噪声分量的功率作为成本函数,当l1范数最小化方法分离声音时。 在l1范数最小化方法中,假定语音与时间方向无关,则定义成本函数。 然而,在本发明中,在语音与时间方向有关系的假设下定义成本函数,并且由于其构造,容易选择与时间方向有关的解决方案。
    • 2. 发明申请
    • ACOUSTIC POINTING DEVICE, POINTING METHOD OF SOUND SOURCE POSITION, AND COMPUTER SYSTEM
    • 声音指示装置,声源位置指示方法和计算机系统
    • US20090207131A1
    • 2009-08-20
    • US12269155
    • 2008-11-12
    • Masahito TOGAMITakashi SumiyoshiYasunari Obuchi
    • Masahito TOGAMITakashi SumiyoshiYasunari Obuchi
    • G06F3/033
    • G06F3/043G06F3/0416
    • There is disclosed an acoustic pointing device that is capable of performing pointing manipulation without putting any auxiliary equipment on a desk. The acoustic pointing includes a microphone array that retains plural microphone elements; an A/D converter that converts analog sound pressure data into digital sound pressure data; a buffering that stores the digital sound pressure data; a direction of arrival estimation unit that executes estimation of a sound source direction of a transient sound based on a correlation of the sound between the microphone elements obtained by the digital sound pressure data; a noise estimation unit that estimates a noise level in the digital sound pressure data; an SNR estimation unit that estimates a rate of a signal component based on the noise level and the digital sound pressure data; a power calculation unit that computes and outputs an output signal from the rate of a signal component; an integration unit that integrates the sound source direction and the output signal to specify a sound source position; and a control unit that converts, based on data in a DB of screen conversion, the specified sound source position into one point on a screen of a display device.
    • 公开了一种能够在桌子上放置任何辅助设备的情况下进行指示操作的声指点装置。 声指包括保持多个麦克风元件的麦克风阵列; 将模拟声压数据转换为数字声压数据的A / D转换器; 存储数字声压数据的缓冲器; 基于由通过数字声压数据获得的麦克风元件之间的声音的相关性来执行瞬态声音的声源方向的估计的到达方向估计单元; 噪声估计单元,其估计数字声压数据中的噪声电平; SNR估计单元,其基于所述噪声电平和所述数字声压数据来估计信号分量的速率; 功率计算单元,其从信号分量的速率计算并输出输出信号; 整合单元,其将声源方向和输出信号进行积分,以指定声源位置; 以及控制单元,其基于屏幕转换的DB中的数据将指定的声源位置转换为显示设备的屏幕上的一个点。
    • 6. 发明授权
    • Multicast delivery control apparatus and method
    • 组播传送控制装置及方法
    • US07333488B2
    • 2008-02-19
    • US11034753
    • 2005-01-14
    • Takashi Sumiyoshi
    • Takashi Sumiyoshi
    • H04L12/56
    • H04L12/18H04L45/16H04L45/38H04L45/60
    • A routing/switching processing unit rewrites the inbound multicast address or the source address and the destination multicast address of the inbound flow identifier of a received packet and forwards the received packet to only output ports corresponding to a resulting outbound multicast address or flow identifier. A conversion table stores first multicast addresses or flow identifiers designated by transmission sources, second multicast addresses or flow identifiers to be used for forwarding to users data transmitted from the transmission sources, and signal port IDs of signal ports to which the users are connected. A multicast packet processing unit converts the first multicast address or flow identifier of a received multicast packet to a second multicast packet or flow identifier by referring to the conversion table, and forwards the address-converted packet to network interfaces having signal ports corresponding to the second multicast packet or flow identifier.
    • 路由/交换处理单元重写接收到的分组的入站流标识符的入站组播地址或源地址和目的组播地址,并将接收到的分组转发到仅对应于所生成的出站多播地址或流标识符的输出端口。 转换表存储由发送源指定的第一组播地址或流标识符,用于转发给用户从发送源发送的数据的第二组播地址或流标识符,以及用户所连接的信号端口的信号端口ID。 多播分组处理单元通过参照转换表将接收到的组播分组的第一多播地址或流标识符转换为第二多播分组或流标识符,并将地址转换分组转发到具有对应于第二多播分组或流标识符的信号端口的网络接口 组播数据包或流标识符。
    • 7. 发明申请
    • Network system for managing QoS
    • 用于管理QoS的网络系统
    • US20070177604A1
    • 2007-08-02
    • US11642911
    • 2006-12-21
    • Yoji OzawaHideki OkitaTakashi SumiyoshiKenichi Sakamoto
    • Yoji OzawaHideki OkitaTakashi SumiyoshiKenichi Sakamoto
    • H04L12/56H04L12/26
    • H04L47/10H04L47/20H04L47/2416H04L47/2441H04L47/2483
    • The invention reduces the initial setting cost, the management cost, and reconfiguration cost of QoS guarantee for network devices. A management device has a control unit and the storage unit. The control unit obtains the number of terminals contained in the network system and connection relations of the network system at the time of initial setting for QoS guarantee. A control unit stores an operation policy which an administrator inputs. The control unit creates QoS control configuration for each connection path between adjacent two network devices using the number of terminals in the network system, the connection relations, and the operation policy. And QoS control configuration is the information for controlling the QoS guarantee of network devices. And the control unit sets the QoS control configuration in the network devices.
    • 本发明降低了网络设备的初始设置成本,管理成本和QoS保证的重配置成本。 管理装置具有控制单元和存储单元。 控制单元获取网络系统中包含的终端数量和初始设置QoS保证时网络系统的连接关系。 控制单元存储管理员输入的操作策略。 控制单元使用网络系统中的终端数量,连接关系和操作策略来创建相邻两个网络设备之间的每个连接路径的QoS控制配置。 QoS控制配置是控制网络设备QoS保障的信息。 控制单元设置网络设备中的QoS控制配置。
    • 9. 发明申请
    • Packet communication device
    • 分组通信设备
    • US20060187922A1
    • 2006-08-24
    • US11337048
    • 2006-01-23
    • Takashi SumiyoshiToshiaki Suzuki
    • Takashi SumiyoshiToshiaki Suzuki
    • H04L12/56
    • H04L45/00H04L45/38H04L45/54H04L45/60
    • To provide a packet communication device to which a function can be added by a functional module and that realizes high throughput and low apparatus cost. According to this invention, there is provided a packet communication device that receives a packet and transfers the packet received in a network, the packet communication device including: a network interface for transmitting the packet to and receiving the packet from the network; a path retrieving unit for judging a transfer order on the basis of the received packet and giving an identifier indicating the transfer order judged to the packet; a functional module interface to which a functional module that applies predetermined processing to the packet is connected; a module management unit for managing the functional module; and a switch for connecting the network interface and the functional module interface.
    • 提供功能模块可以添加功能的分组通信装置,实现高吞吐量和低装置成本。 根据本发明,提供了一种分组通信装置,其接收分组并传送在网络中接收的分组,所述分组通信装置包括:网络接口,用于向所述网络发送所述分组并从所述网络接收分组; 路径检索单元,用于基于接收到的分组判断传送顺序,并给出指示对该分组判断的传送顺序的标识符; 功能模块接口,对分组进行预定处理的功能模块连接到该功能模块接口; 用于管理功能模块的模块管理单元; 以及用于连接网络接口和功能模块接口的交换机。
    • 10. 发明授权
    • Method of scheduling tasks with priority to interrupted task locking
shared resource
    • 调度任务的方法优先中断任务锁定共享资源
    • US5377352A
    • 1994-12-27
    • US003858
    • 1993-01-08
    • Kazuaki TanakaSadasaburo KanaiShoji YamamotoTakashi SumiyoshiTetsuhiko Fujii
    • Kazuaki TanakaSadasaburo KanaiShoji YamamotoTakashi SumiyoshiTetsuhiko Fujii
    • G06F9/46G06F9/48G06F9/52G06F15/16G06F15/177G06F12/00
    • G06F9/4881G06F9/52
    • A computer system including a plurality of shared resources to be used exclusively by a plurality of tasks. Upon occurrence of an interrupt, execution of the task running at that time is suspended to allow the interrupt task to be executed. After execution of the interrupt task, one of the tasks remaining in the execution waiting state is selected for execution. A method of scheduling tasks with priority to the task locking a shared resource includes the steps of registering a task identifier of a task being executed upon locking of the task to a resource, invalidating the registered identifier of the task when that task releases the shared resource from the locked state, deciding whether or not a valid task identifier representing the task which was running by locking the shared resource is registered when a task to be executed next is to be selected after execution of the interrupt task, and selecting the task designated by the task identifier, if registered, to thereby select the task as the one to be executed with priority.
    • 一种计算机系统,包括要由多个任务专门使用的多个共享资源。 发生中断时,暂停执行在该时间运行的任务,以允许执行中断任务。 执行中断任务后,选择执行等待状态中剩余的其中一个任务。 调度优先于任务锁定共享资源的任务的方法包括以下步骤:将任务锁定时执行的任务的任务标识符注册到资源,当该任务释放共享资源时使登记的任务标识无效 从锁定状态,决定在执行中断任务之后要选择下一个要执行的任务时,是否登录表示通过锁定共享资源运行的任务的有效任务标识符,并选择由 任务标识符(如果已注册),从而以优先级的方式选择要执行的任务。