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    • 3. 发明授权
    • Phased array multiple area nulling antenna architecture
    • 相控阵多区域归零天线架构
    • US5579016A
    • 1996-11-26
    • US531262
    • 1995-09-20
    • James L. WolcottWilliam C. WongKenneth E. Westall
    • James L. WolcottWilliam C. WongKenneth E. Westall
    • G01S3/16G01S3/28H01Q3/22H01Q3/26H01Q3/24
    • H01Q3/22H01Q3/2605
    • An adaptive nulling communication system for nulling undesired signals from communication signals in multiple separate and distinct coverage areas is disclosed. The adaptive nulling communication system includes a phased array antenna having multiple receiving elements to form a single aperture for receiving multiple signals. A first set of beam forming networks coupled to the phased array antenna forms the multiple separate and distinct coverage areas. A distribution network coupled to the first set of beam forming networks distributes the signals received from these coverage areas. A nulling processor having a second beam forming network coupled to the distribution network weights and adjusts the second beam forming network in response to the undesired signals to null these undesired signals from the communication signals.
    • 公开了一种用于在多个独立且不同的覆盖区域中对来自通信信号的不想要的信号进行归零的自适应归零通信系统。 自适应归零通信系统包括具有多个接收元件以形成用于接收多个信号的单个孔径的相控阵天线。 耦合到相控阵天线的第一组波束形成网络形成多个分开且不同的覆盖区域。 耦合到第一组波束形成网络的分配网络分配从这些覆盖区域接收的信号。 具有耦合到分配网络的第二波束形成网络的归零处理器加权并响应于不期望的信号调整第二波束形成网络,以从通信信号中将这些不期望的信号置零。
    • 4. 发明授权
    • Hard disk controller which coordinates transmission of buffered data with a host
    • 与主机协调传输缓冲数据的硬盘控制器
    • US08412895B1
    • 2013-04-02
    • US13401179
    • 2012-02-21
    • Huy Tu NguyenWilliam C. WongKha Nguyen
    • Huy Tu NguyenWilliam C. WongKha Nguyen
    • G06F12/00
    • G06F5/065G06F3/061G06F3/0659G06F3/0674
    • The transmission of buffered data is coordinated between a storage medium and a host in response to a request from the host. One or more blocks of data are transferred from the storage medium to a buffer memory. One or more frames of data are transmitted from the buffer memory to the host, wherein the number of blocks ending in the frame is recorded in a blocks/frame register, and possibly also in a block count accumulator register. Buffer release pulses for releasing buffer space in memory are sent to the buffer memory, based on the number of blocks in the blocks/frame register, or the number of blocks accumulated in the block count accumulator register when a signal is received from the host. A pointer which points to the last block of data successfully transferred is updated in accordance with the buffer release pulses.
    • 响应于来自主机的请求,缓冲数据的传输在存储介质和主机之间协调。 一个或多个数据块从存储介质传送到缓冲存储器。 一个或多个数据帧从缓冲存储器发送到主机,其中以帧结束的块的数量被记录在块/帧寄存器中,并且还可能被记录在块计数累加器寄存器中。 基于块/帧寄存器中的块数或从主机接收到信号时累积在块计数累加器寄存器中的块的数量,将用于释放存储器中的缓冲器空间的缓冲器释放脉冲发送到缓冲存储器。 根据缓冲器释放脉冲更新指向成功传送的最后数据块的指针。
    • 5. 发明授权
    • Method and system for command queuing in disk drives
    • 磁盘驱动器中命令排队的方法和系统
    • US08156415B1
    • 2012-04-10
    • US12323267
    • 2008-11-25
    • Huy Tu NguyenWilliam C. WongKha NguyenYehua Yang
    • Huy Tu NguyenWilliam C. WongKha NguyenYehua Yang
    • G06F11/08G06F13/00
    • G06F3/0659G06F3/061G06F3/0671G06F11/1004G06F2213/0038
    • A method and system for command queuing in disk drives may improve performance by queuing multiple commands and sequentially executing them automatically without firmware intervention. The method may use a number of queues, e.g., a staging queue for commands to be executed, an execution queue for commands currently being executed, and a holding queue for commands which have been executed but have not received a status report from a host. With the pipelined nature of queued commands, when data requested by one command are being sent to the host, the queue logic may already be fetching data for the next command. If an error occurs in the transmission, commands in the queues may backtrack and restart from the point where data were last known to have been successfully sent to the host.
    • 用于在磁盘驱动器中进行命令排队的方法和系统可以通过排队多个命令并在没有固件干预的情况下自动执行它们来提高性能。 该方法可以使用多个队列,例如用于执行命令的分段队列,用于当前正在执行的命令的执行队列,以及用于已被执行但尚未从主机接收到状态报告的命令的保持队列。 随着排队命令的流水线性质,当一个命令请求的数据被发送到主机时,队列逻辑可能已经为下一个命令获取数据。 如果传输中发生错误,则队列中的命令可能会从最后被称为已经成功发送到主机的位置回溯并重新启动。
    • 7. 发明授权
    • Simplified wide-band autotrack traveling wave coupler
    • 简化宽带自动跟踪行波耦合器
    • US5410318A
    • 1995-04-25
    • US218775
    • 1994-03-25
    • William C. WongYoun H. ChoungMing-Jong ShiauChun-Hong H. Chen
    • William C. WongYoun H. ChoungMing-Jong ShiauChun-Hong H. Chen
    • H01P1/16H01P5/18H01Q1/12H01Q3/06H01Q3/00
    • H01Q1/1257H01P1/16H01P5/182H01Q3/06
    • In accordance with the present invention, a traveling wave coupler generates tracking signals from a circularly polarized microwave signal and includes a waveguide manifold for exciting circular TM.sub.01 and TM.sub.11 modes of said circularly polarized microwave signal. The waveguide manifold includes an input port, a propagation length, and an output port. A coupling arm waveguide includes an auxiliary input port and an auxiliary output port and is aligned and connected to the waveguide manifold along a portion of the propagation length. A coupler located between the waveguide manifold and the coupling arm transforms microwave energy of a TM.sub.01 mode of the circularly polarized microwave signal into a rectangular TE.sub.10 mode in the coupling arm waveguide. The coupling arm waveguide and the coupler generate a difference signal, used to generate the tracking signals, at the auxiliary output port related to the coupled TE.sub.10 mode.
    • 根据本发明,行波耦合器从圆偏振微波信号产生跟踪信号,并且包括用于激励所述圆偏振微波信号的圆形TM01和TM11模式的波导歧管。 波导歧管包括输入端口,传播长度和输出端口。 耦合臂波导包括辅助输入端口和辅助输出端口,并且沿着传播长度的一部分对准并连接到波导歧管。 位于波导歧管和耦合臂之间的耦合器将耦合臂波导中的圆偏振微波信号的TM01模式的微波能量转换为矩形TE10模式。 耦合臂波导和耦合器在与耦合的TE10模式相关的辅助输出端口处产生用于产生跟踪信号的差分信号。
    • 10. 发明授权
    • System and method for controlling buffer memory overflow and underflow conditions in storage controllers
    • 用于控制存储控制器中缓冲存储器溢出和下溢条件的系统和方法
    • US08032674B2
    • 2011-10-04
    • US10894208
    • 2004-07-19
    • Kha NguyenWilliam C. WongMouluan JangJane X. Wang
    • Kha NguyenWilliam C. WongMouluan JangJane X. Wang
    • G06F5/00G06F11/00
    • G06F3/0605G06F3/0656G06F3/0676
    • A method for maintaining flow control in a buffer memory coupled to a storage controller is provided. The storage controller includes, first and second counters that are used to monitor when data is read from a buffer memory and when data is transferred from the buffer memory to the host. The method includes, incrementing first and second counter values when data is placed in the buffer memory; decrementing a first counter value when data is read from the buffer memory; and decrementing the second counter value when data is sent to a host. The method further includes, pausing a first channel logic between a transport module and a storage disk when there is no data in the buffer memory; and pausing a second channel logic between a disk and the buffer if there is no space in the buffer memory.
    • 提供了一种用于维持耦合到存储控制器的缓冲存储器中的流量控制的方法。 存储控制器包括用于监视从缓冲存储器读取数据以及数据从缓冲存储器传送到主机的第一和第二计数器。 该方法包括:当数据放置在缓冲存储器中时,递增第一和第二计数器值; 当从缓冲存储器读取数据时递减第一计数器值; 并且当数据被发送到主机时递减第二计数器值。 该方法还包括:当缓冲存储器中没有数据时,暂停传输模块和存储盘之间的第一通道逻辑; 并且如果缓冲存储器中没有空间,则在盘和缓冲器之间暂停第二通道逻辑。