Burst SRAMs for use with a high speed clock
    31.
    发明授权
    Burst SRAMs for use with a high speed clock 失效
    突发SRAM用于高速时钟

    公开(公告)号:US5809549A

    公开(公告)日:1998-09-15

    申请号:US801738

    申请日:1997-02-14

    摘要: Burst SRAMs designed for operation at a given data rate corresponding to the frequency of a first clock signal but capable of operation using a higher frequency clock signal. The burst SRAMs are preferably incorporated into the cache memory of a second level cache coupled to the processor bus in a computer system, where the computer system is preferably based on a 66-MHz P5 microprocessor. A cache controller, preferably incorporated within a memory controller, controls operation of the second level cache memory by providing the address load and address advance signals. The burst SRAMs are capable of recognizing the faster clock pulses, as well as the shorter pulses asserted on the address load and address advance signals. The address control signals are asserted and then negated during consecutive clock cycles of the faster clock signal, so that the burst SRAMs effectively operate at the same data rate corresponding to the lower frequency clock signal.

    摘要翻译: 突发SRAM被设计为以对应于第一时钟信号的频率但能够使用较高频率时钟信号操作的给定数据速率进行操作。 突发SRAM优选地并入计算机系统中耦合到处理器总线的第二级高速缓冲存储器中,其中计算机系统优选地基于66MHz P5微处理器。 优选地并入存储器控制器内的高速缓存控制器通过提供地址负载和地址提前信号来控制第二级高速缓冲存储器的操作。 突发SRAM能够识别更快的时钟脉冲,以及在地址负载和地址提前信号上断言的较短脉冲。 在更快的时钟信号的连续时钟周期期间,地址控制信号被断言然后被否定,使得脉冲串SRAM以与较低频率时钟信号对应的相同数据速率有效地工作。

    Purification of elemental sulphur
    33.
    发明授权
    Purification of elemental sulphur 失效
    元素硫的纯化

    公开(公告)号:US5403571A

    公开(公告)日:1995-04-04

    申请号:US700149

    申请日:1991-04-04

    IPC分类号: C01B17/02 C01G13/00

    CPC分类号: C01B17/0232 C01G13/00

    摘要: A process for removing mercury or other metal impurities from elemental sulphur contaminated therewith includes mixing such elemental sulphur in a molten state with an aqueous sulphide solution or an aqueous solution of sufficiently high pH which reacts with elemental sulphur and forms a sulphide solution to cause extraction of mercury or other metal contaminants from the elemental sulphur into the aqueous sulphide solutions, and separating the aqueous sulphide solution containing mercury or other metal contaminants from the molten elemental sulphur to provide an elemental sulphur product substantially free from mercury and other metal contaminants.

    摘要翻译: PCT No.PCT / CA90 / 00187 Sec。 371日期:1991年4月9日 102(e)日期1991年4月9日PCT Filed 1990年6月5日PCT公布。 WO90 / 15021 PCT出版物 日期1990年12月13日。一种从被污染的元素硫中除去汞或其他金属杂质的方法包括将熔融状态的这种元素硫与硫化氢水溶液或足够高pH的水溶液混合,其与元素硫反应并形成 一种硫化物溶液,用于将汞或其他金属污染物从元素硫提取到硫化氢水溶液中,以及将含有汞或其它金属污染物的硫化氢水溶液与熔融元素硫分离,以提供基本上不含汞的元素硫产物, 其他金属污染物。

    Microwave ashing apparatuses and components
    34.
    发明授权
    Microwave ashing apparatuses and components 失效
    微波灰化设备和组件

    公开(公告)号:US5318754A

    公开(公告)日:1994-06-07

    申请号:US5252

    申请日:1993-01-15

    摘要: An apparatus for use in analyzing materials for ash content includes a walled chamber which retains microwave radiation therein, a source of microwave radiation, such as a magnetron, for radiating onto contents of such chamber, and an ashing furnace in the chamber which includes a heat resistant wall of low thermal conductivity, which is transmissive of microwave radiation, and a microwave absorptive material which is capable of being heated by microwave radiation to an ashing temperature. The furnace includes a passageway through it for the entry into the furnace cavity of a gas, such as air, and for venting gas, such as combustion products, from the furnace cavity, and preferably also includes a removable trapezoidally shaped door in a front wall thereof, which, when the chamber door is open, is readily removable from the furnace by hand, without burning the operator's fingers, despite the high internal temperature in the furnace cavity. Air flows through the chamber and around the furnace, helping to cool the exterior, of the furnace walls. It is preferred that the operation of the furnace and the ashing temperature be controlled by a combination of a temperature sensor, preferably a thermocouple, and a control mechanism, which turns the magnetron on and off as the temperature in the furnace cavity falls below or rises above a desired set temperature, respectively.

    摘要翻译: 用于分析灰分材料的装置包括:保留微波辐射的壁室,诸如磁控管的微波辐射源,用于辐射到这种室的内容物上,以及在室中的灰化炉,其包括热量 微波辐射传播的低导热性的耐热壁,以及能够通过微波辐射加热至灰化温度的微波吸收材料。 炉子包括通过它的通道,用于进入诸如空气的气体的炉腔中,并且用于从炉腔排出诸如燃烧产物的气体,并且优选地还包括在前壁中的可移除的梯形门 其中,当室门打开时,即使在炉腔中具有高的内部温度,也可以用手轻轻地从炉子中移除炉子,而不燃烧操作者的手指。 空气流过室和炉周围,有助于冷却炉壁的外部。 优选的是,通过温度传感器,优选热电偶和控制机构的组合来控制炉的操作和灰化温度,控制机构随着炉腔中的温度降低或升高而使磁控管打开和关闭 分别高于所需的设定温度。

    Memory address space determination using programmable limit registers
with single-ended comparators
    35.
    发明授权
    Memory address space determination using programmable limit registers with single-ended comparators 失效
    使用可编程限制寄存器与单端比较器的存储器地址空间确定

    公开(公告)号:US5210850A

    公开(公告)日:1993-05-11

    申请号:US538724

    申请日:1990-06-15

    IPC分类号: G06F12/06 G06F12/08

    CPC分类号: G06F12/0888

    摘要: An apparatus for determining cacheable address and write-protect memory address regions in a computer system which includes a programmable single-ended limit register and a single comparator to determine each such region. A programmable limit register associated with each respective memory address region defines a boundary limit for each of the respective memory regions. A single address comparator associated with each respective limit register determines whether a memory address developed by the computer system resides between the respective boundaries provided by the value stored in the respective programmable limit register and a predefined address. The use of a single limit register and a single address comparator for each memory address region reduces the gate count and decreases the input buffer loading in the logic circuitry.

    Terminal based adjunct call manager for a communication system
    36.
    发明授权
    Terminal based adjunct call manager for a communication system 失效
    基于终端的通信系统的附属呼叫管理器

    公开(公告)号:US4763353A

    公开(公告)日:1988-08-09

    申请号:US830058

    申请日:1986-02-14

    CPC分类号: H04M3/5166 H04M3/523

    摘要: An adjunct call manager unit connects to a station set port of a telephone communication system and receives button identification and status signals to determine line, agent, and feature activation status of the system. In response to one or more of the received status signals, commands are sent to the system using button depression commands and switchhook commands to effectuate call processing control over the system. In one embodiment, the adjunct unit functions as an automated call distributor for managing incoming calls to the system.

    摘要翻译: 附加呼叫管理器单元连接到电话通信系统的站设置端口,并接收按钮识别和状态信号,以确定系统的线路,代理和功能激活状态。 响应于接收到的一个或多个状态信号,使用按钮按钮命令和切换指令将命令发送到系统以实现对系统的呼叫处理控制。 在一个实施例中,辅助单元用作用于管理到系统的传入呼叫的​​自动呼叫分配器。

    Analytical apparatus and process
    37.
    发明授权
    Analytical apparatus and process 失效
    分析仪器和工艺

    公开(公告)号:US4651285A

    公开(公告)日:1987-03-17

    申请号:US811538

    申请日:1985-12-19

    CPC分类号: G01N9/36 G01N33/06 G01N5/045

    摘要: Apparatuses and processes are described for the automatic determinations of fat contents of foods, such as dairy products, e.g., milk, wherein automatic density and solids content determining apparatuses are employed, together with a computer, to determine the fat contents of food samples being tested. The density determining apparatus is preferably one which is electromagnetically excited to vibrate at its natural resonant frequency, so that from the change in such frequency, compared to a control, the mass of the sample may be determined. The means for measuring the solids content is preferably an automatic volatility computer in which electromagnetic radiation (microwave energy) is employed to drive off the volatile material (usually mostly water) in the sample, which is automatically weighed before and after such volatilization. Preferably, a microcomputer in the automatic volatility computer is employed to compute fat content from electronic feeds to it from the density and the solids content determining apparatuses.By use of the described apparatuses and processes rapid determinations of fat contents of materials may be made, facilitating modifications of production procedures to provide products of desired fat content, thereby preventing the production of off-specification materials and avoiding producing over-specification products which might otherwise be manufactured to avoid non-compliance with requirements for minimum fat contents of products.

    摘要翻译: 描述了用于自动确定食品的脂肪含量的装置和方法,所述食品例如是乳制品,例如牛奶,其中使用自动密度和固体含量确定装置以及计算机来确定正在测试的食品样品的脂肪含量 。 密度测定装置优选是电磁激发以便以其固有共振频率振动的装置,从而与这种频率的变化相比,可以确定样品的质量。 用于测量固体含量的装置优选是自动挥发性计算机,其中使用电磁辐射(微波能量)来驱除样品中的挥发性物质(通常主要是水),其在这种挥发之前和之后被自动称重。 优选地,使用自动挥发性计算机中的微型计算机从密度和固体含量确定装置计算来自电子馈送的脂肪含量。 通过使用所描述的装置和方法,可以快速确定材料的脂肪含量,促进生产程序的改进以提供所需脂肪含量的产品,从而防止生产不合规格的材料并避免生产过度规格的产品 否则制造以避免不符合产品最低脂肪含量的要求。

    Microwave ashing apparatus
    38.
    发明授权
    Microwave ashing apparatus 失效
    微波灰化装置

    公开(公告)号:US4565669A

    公开(公告)日:1986-01-21

    申请号:US487307

    申请日:1983-04-21

    摘要: An apparatus for ashing materials which comprises a chamber, a source of microwave radiation for direction onto contents of the chamber, and in the chamber a support, such as a fused quartz pad or crucible, for the material to be ashed, and an ashing means of a stable microwave absorptive material, capable of being heated to high temperature by microwave radiation, such as a flat block of silicon carbide or a plurality of such blocks with openings therein to accommodate the crucible. The ashing means is in contact with the support for the material to be ashed and is capable of heating such support and such material to an ashing temperature. When a fused quartz fiber pad, preferably of the non-woven cloth type, is employed on top of and in contact with the ashing means of microwave absorptive material, as a support for the material to be ashed, it is preferred to cover such material with another such pad, which inhibits loss of the ash due to its being carried out of the chamber, as by an exhaust fan, while yet permitting the release of gases generated during the ashing process. Also disclosed are processes for ashing materials and for analyzing such materials for ash content, which processes may be practiced with the aid of the described apparatus.

    摘要翻译: 一种用于灰化材料的设备,其包括腔室,用于朝向腔室内容物的方向的微波辐射源,以及在腔室中用于待灰化的材料的诸如熔融石英垫或坩埚的支撑件,以及灰化装置 的稳定的微波吸收材料,其能够通过微波辐射被加热到高温,例如碳化硅的平坦块或多个这样的块,其中具有开口以容纳坩埚。 灰化装置与要被灰化的材料的支撑件接触,并且能够将这种支撑件和这种材料加热到灰化温度。 当优选采用非织造布类型的熔融石英纤维垫作为微波吸收材料的灰化装置的顶部并与之接触时,作为待灰化材料的载体,优选覆盖这种材料 具有另一个这样的垫,其抑制了由于其被排出风扇而被引入室内的灰分的损失,同时允许释放在灰化过程中产生的气体。 还公开了用于灰化材料和用于分析灰分含量的这种材料的方法,该方法可以借助所描述的装置来实施。

    Bit reversing apparatus
    39.
    发明授权
    Bit reversing apparatus 失效
    位反转装置

    公开(公告)号:US4181976A

    公开(公告)日:1980-01-01

    申请号:US950204

    申请日:1978-10-10

    IPC分类号: G06F7/76 G06F17/14 H03K21/10

    CPC分类号: G06F7/768 G06F17/142

    摘要: Apparatus is disclosed for reversing the bit order of a selected portion of a digital word. A first shifter is provided to shift the position of the unselected portion of the digital word to a set of terminals. The digital word, in bit reversed order, is coupled to an adjacent set of terminals. The two sets of terminals are fed to a second shifter which couples to the output thereof the digital word with the selected portion thereof in bit-reversed order. Such apparatus is adapted for use in addressing an FFT processor adapted to operate with different batch sizes to retrieve calculated frequency components in ascending order of frequency.

    摘要翻译: 公开了用于反转数字字的选定部分的位顺序的装置。 提供第一移位器以将数字字的未选择部分的位置移位到一组终端。 数字字以相反的顺序耦合到相邻的终端集合。 两组端子被馈送到第二移位器,其以比特反转的顺序将数字字与其选择的部分耦合到其输出端。 这种装置适用于寻址适用于以不同批次大小操作的FFT处理器以按频率升序检索计算出的频率分量。