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    • 1. 发明授权
    • DMA handshake protocol
    • DMA握手协议
    • US06701405B1
    • 2004-03-02
    • US09410927
    • 1999-10-01
    • Vijaya Pratap AdusumilliBernard RamanadinAtsushi HasegawaShinichi YoshiokaTakanobu Naruse
    • Vijaya Pratap AdusumilliBernard RamanadinAtsushi HasegawaShinichi YoshiokaTakanobu Naruse
    • G06F1336
    • G06F13/28
    • A computer system having a simple handshake protocol for implementing DMA transfers. A system bus is provided having a plurality of ports for coupling to system components including memory, central processing unit(s) and peripherals. A direct memory access controller (DMAC) is provided with a peripheral-independent interface coupled to the system bus and communicates with the system bus using system bus defined transactions. The DMAC comprises a set of registers. A central processing unit (CPU) configures teh DMAC by loading values into the DMAC registers. The configured DMAC issues an enable signal to a selected system component identified in the DMAC registers. A peripheral request interface is associated with the selected system components and communicates with the system bus using the system bus defined transactions. The selected system component asserts a request signal to the DMAC. In response to the request signal, the DMAC implements a DMA transfer according to the values stored in the DMAC configuration registers. Peripheral-specific signaling is provided to the system component by the peripheral request interface
    • 具有用于实现DMA传输的简单握手协议的计算机系统。 提供一种系统总线,其具有用于耦合到包括存储器,中央处理单元和外围设备的系统组件的多个端口。 直接存储器访问控制器(DMAC)具有耦合到系统总线的与外设无关的接口,并使用系统总线定义的事务与系统总线进行通信。 DMAC包括一组寄存器。 中央处理单元(CPU)通过将值加载到DMAC寄存器中来配置DMAC。 配置的DMAC向DMAC寄存器中标识的所选系统组件发出使能信号。 外围设备请求接口与所选系统组件相关联,并使用系统总线定义的事务与系统总线进行通信。 所选系统组件向DMAC发出请求信号。 响应于请求信号,DMAC根据存储在DMAC配置寄存器中的值实现DMA传输。 通过外设请求接口向系统组件提供外设特定的信令
    • 3. 发明授权
    • Data processor having a memory control unit with cache memory
    • 数据处理器具有具有高速缓冲存储器的存储器控​​制单元
    • US07519774B2
    • 2009-04-14
    • US11130217
    • 2005-05-17
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • G06F13/00
    • G06F12/0875G06F13/1678
    • The data processor enhances the bus throughput or data throughput of an external memory, when there are frequent continuous reads with a smaller data size than the data bus width of the external memory. The data processor includes a memory control unit being capable of controlling in response to a clock an external memory having plural banks that are individually independently controllable, plural buses connected to the memory control unit, and circuit modules capable of commanding memory accesses, which are provided in correspondence with each of the buses. The memory control unit contains bank caches each corresponding to the banks of the external memory. Thereby, the data processor enhances the bus throughput or data throughput of the external memory, since the data processor stores the data read out from the external memory temporarily in the bank caches and to use the stored data without invalidating them, when performing a continuous data read with a smaller data size than the data bus width of the external memory.
    • 当存在与外部存储器的数据总线宽度相比更小的数据大小的频繁连续读取时,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量。 该数据处理器包括一个存储器控制单元,该存储器控制单元能够响应于时钟来控制具有独立可独立控制的多个存储体的外部存储器,连接到存储器控制单元的多个总线以及能够命令存储器访问的电路模块 与每条巴士对应。 存储器控制单元包含每个对应于外部存储器的存储体的存储体缓存。 因此,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量,因为数据处理器将从外部存储器中读出的数据临时存储在存储体高速缓存中并且在执行连续数据时使用存储的数据而不使其消失 以比外部存储器的数据总线宽度更小的数据大小读取。
    • 4. 发明授权
    • Data processor
    • 数据处理器
    • US08032715B2
    • 2011-10-04
    • US12848777
    • 2010-08-02
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • G06F13/00
    • G06F12/0875G06F13/1678
    • The data processor enhances the bus throughput or data throughput of an external memory, when there are frequent continuous reads with a smaller data size than the data bus width of the external memory. The data processor includes a memory control unit being capable of controlling in response to a clock an external memory having plural banks that are individually independently controllable, plural buses connected to the memory control unit, and circuit modules capable of commanding memory accesses, which are provided in correspondence with each of the buses. The memory control unit contains bank caches each corresponding to the banks of the external memory. Thereby, the data processor enhances the bus throughput or data throughput of the external memory, since the data processor stores the data read out from the external memory temporarily in the bank caches and to use the stored data without invalidating them, when performing a continuous data read with a smaller data size than the data bus width of the external memory.
    • 当存在与外部存储器的数据总线宽度相比更小的数据大小的频繁连续读取时,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量。 该数据处理器包括一个存储器控制单元,该存储器控制单元能够响应时钟控制具有独立可独立控制的多个存储体的外部存储器,连接到存储器控制单元的多个总线以及能够命令存储器访问的电路模块 与每条巴士对应。 存储器控制单元包含每个对应于外部存储器的存储体的存储体缓存。 因此,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量,因为数据处理器将从外部存储器中读出的数据临时存储在存储体高速缓存中并且在执行连续数据时使用存储的数据而不使其消失 以比外部存储器的数据总线宽度更小的数据大小读取。
    • 5. 发明申请
    • DATA PROCESSOR
    • 数据处理器
    • US20100318732A1
    • 2010-12-16
    • US12848777
    • 2010-08-02
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • G06F12/06
    • G06F12/0875G06F13/1678
    • The data processor enhances the bus throughput or data throughput of an external memory, when there are frequent continuous reads with a smaller data size than the data bus width of the external memory. The data processor includes a memory control unit being capable of controlling in response to a clock an external memory having plural banks that are individually independently controllable, plural buses connected to the memory control unit, and circuit modules capable of commanding memory accesses, which are provided in correspondence with each of the buses. The memory control unit contains bank caches each corresponding to the banks of the external memory. Thereby, the data processor enhances the bus throughput or data throughput of the external memory, since the data processor stores the data read out from the external memory temporarily in the bank caches and to use the stored data without invalidating them, when performing a continuous data read with a smaller data size than the data bus width of the external memory.
    • 当存在与外部存储器的数据总线宽度相比更小的数据大小的频繁连续读取时,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量。 该数据处理器包括一个存储器控制单元,该存储器控制单元能够响应于时钟来控制具有独立可独立控制的多个存储体的外部存储器,连接到存储器控制单元的多个总线以及能够命令存储器访问的电路模块 与每条巴士对应。 存储器控制单元包含每个对应于外部存储器的存储体的存储体缓存。 因此,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量,因为数据处理器将从外部存储器中读出的数据临时存储在存储体高速缓存中并且在执行连续数据时使用存储的数据而不使其消失 以比外部存储器的数据总线宽度更小的数据大小读取。
    • 6. 发明授权
    • Data processor having a memory controller with cache memory
    • 具有具有高速缓冲存储器的存储器控​​制器的数据处理器
    • US07783827B2
    • 2010-08-24
    • US12410437
    • 2009-03-24
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • G06F13/00
    • G06F12/0875G06F13/1678
    • The data processor enhances the bus throughput or data throughput of an external memory, when there are frequent continuous reads with a smaller data size than the data bus width of the external memory. The data processor includes a memory control unit being capable of controlling in response to a clock an external memory having plural banks that are individually independently controllable, plural buses connected to the memory control unit, and circuit modules capable of commanding memory accesses, which are provided in correspondence with each of the buses. The memory control unit contains bank caches each corresponding to the banks of the external memory. Thereby, the data processor enhances the bus throughput or data throughput of the external memory, since the data processor stores the data read out from the external memory temporarily in the bank caches and to use the stored data without invalidating them, when performing a continuous data read with a smaller data size than the data bus width of the external memory.
    • 当存在与外部存储器的数据总线宽度相比更小的数据大小的频繁连续读取时,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量。 该数据处理器包括一个存储器控制单元,该存储器控制单元能够响应于时钟来控制具有独立可独立控制的多个存储体的外部存储器,连接到存储器控制单元的多个总线以及能够命令存储器访问的电路模块 与每条巴士对应。 存储器控制单元包含每个对应于外部存储器的存储体的存储体缓存。 因此,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量,因为数据处理器将从外部存储器中读出的数据临时存储在存储体高速缓存中并且在执行连续数据时使用存储的数据而不使其消失 以比外部存储器的数据总线宽度更小的数据大小读取。
    • 9. 发明申请
    • Data processor
    • 数据处理器
    • US20050268027A1
    • 2005-12-01
    • US11130217
    • 2005-05-17
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • Fumie KatsukiTakanobu NaruseChiaki Fujii
    • G06F12/08G06F12/00G06F12/04G06F13/16
    • G06F12/0875G06F13/1678
    • The data processor enhances the bus throughput or data throughput of an external memory, when there are frequent continuous reads with a smaller data size than the data bus width of the external memory. The data processor includes a memory control unit being capable of controlling in response to a clock an external memory having plural banks that are individually independently controllable, plural buses connected to the memory control unit, and circuit modules capable of commanding memory accesses, which are provided in correspondence with each of the buses. The memory control unit contains bank caches each corresponding to the banks of the external memory. Thereby, the data processor enhances the bus throughput or data throughput of the external memory, since the data processor stores the data read out from the external memory temporarily in the bank caches and to use the stored data without invalidating them, when performing a continuous data read with a smaller data size than the data bus width of the external memory.
    • 当存在与外部存储器的数据总线宽度相比更小的数据大小的频繁连续读取时,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量。 该数据处理器包括一个存储器控制单元,该存储器控制单元能够响应于时钟来控制具有独立可独立控制的多个存储体的外部存储器,连接到存储器控制单元的多个总线以及能够命令存储器访问的电路模块 与每条巴士对应。 存储器控制单元包含每个对应于外部存储器的存储体的存储体缓存。 因此,数据处理器增强了外部存储器的总线吞吐量或数据吞吐量,因为数据处理器将从外部存储器中读出的数据临时存储在存储体高速缓存中,并且在执行连续数据时使用存储的数据而不使其消失 以比外部存储器的数据总线宽度更小的数据大小读取。
    • 10. 发明授权
    • Semiconductor device and temperature sensor system
    • 半导体器件和温度传感器系统
    • US09389127B2
    • 2016-07-12
    • US13612656
    • 2012-09-12
    • Tadashi KameyamaTakanobu NaruseTakayasu Ito
    • Tadashi KameyamaTakanobu NaruseTakayasu Ito
    • G01K7/01G01K1/00G01K15/00G01K7/00
    • G01K15/00G01K1/00G01K7/00G01K7/01
    • A temperature sensor in a semiconductor device includes a temperature detection circuit for outputting a voltage according to the chip temperature, a reference voltage generating circuit for generating a plurality of reference voltages, and a plurality of voltage comparators for comparing each reference voltage with an output voltage of the temperature detection circuit and thereby generating a chip temperature detection signal configured with multiple bits. Further, the temperature sensor includes a control circuit for controlling the reference voltages generated by the reference voltage generating circuit based on the chip temperature detection signal and thereby changing correspondence between the chip temperature detection signal and the chip temperature to shift a chip temperature detection range. It is possible to expand the chip temperature detection range by changing the correspondence between the chip temperature detection signal and the chip temperature, without increasing the number of voltage comparators.
    • 半导体器件中的温度传感器包括用于输出根据芯片温度的电压的温度检测电路,用于产生多个参考电压的参考电压产生电路,以及用于将每个参考电压与输出电压进行比较的多个电压比较器 从而产生配置有多个位的芯片温度检测信号。 此外,温度传感器包括控制电路,用于基于芯片温度检测信号来控制由基准电压产生电路产生的参考电压,从而改变芯片温度检测信号和芯片温度之间的对应关系,以移动芯片温度检测范围。 通过改变芯片温度检测信号和芯片温度之间的对应关系,可以扩大芯片温度检测范围,而不增加电压比较器的数量。