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    • 91. 发明授权
    • Circuit for switching between synchronous and asynchronous memory
refresh cycles in low power mode
    • 用于在低功耗模式下在同步和异步存储器刷新周期之间切换的电路
    • US5796992A
    • 1998-08-18
    • US575370
    • 1995-12-20
    • James R. ReifMichael J. CollinsTodd J. DeSchepper
    • James R. ReifMichael J. CollinsTodd J. DeSchepper
    • G06F1/32G06F1/04
    • G06F1/32
    • A power management circuit for managing low power modes in a computer system, which implements four power modes, from highest power consumption to lowest power consumption: RUN mode, SLEEP mode, IDLE mode, and STANDBY mode. The computer system includes a PCI bus and an ISA bus, with a CPU-PCI bridge to connect the host bus and the PCI bus and a PCI-ISA bridge to connect the PCI bus and the ISA bus. The power management circuit transitions from SLEEP mode to IDLE mode by first determining if the CPU-PCI bridge is parked on the PCI bus and if it is in SLEEP mode. The power management circuit then waits for one refresh period and for all internal queues to empty before checking again to determine if the CPU-PCI bridge is still parked on the PCI bus and if it is still in SLEEP mode. If true, the CPU-PCI bridge transitions to IDLE mode. The power management circuit also performs low power refresh cycles when it is in IDLE or STANDBY mode. In those modes, the memory controller in the CPU-PCI bridge is disabled to conserve power. The power management circuit performs the refresh cycles based off an external asynchronous clock. Further, the power management circuit drives certain PCI bus signals to a certain state to avoid leakage current due to the existence of a mixture of 3.3-volt and 5-volt components connected to the PCI bus.
    • 一种用于管理计算机系统中的低功率模式的电源管理电路,其实现从最高功耗到最低功耗的四种功率模式:RUN模式,SLEEP模式,空闲模式和待机模式。 计算机系统包括PCI总线和ISA总线,具有连接主机总线和PCI总线的CPU-PCI桥接器和用于连接PCI总线和ISA总线的PCI-ISA网桥。 电源管理电路首先确定CPU-PCI桥是否停放在PCI总线上,如果它处于休眠模式,则从休眠模式转换到空闲模式。 然后,电源管理电路等待一个刷新周期,并且所有内部队列都清空,然后再次检查以确定CPU-PCI桥是否仍然停留在PCI总线上,以及是否仍处于休眠模式。 如果为真,则CPU-PCI桥转换到空闲模式。 电源管理电路在空闲或待机模式下也执行低功耗刷新周期。 在这些模式下,CPU-PCI桥接器中的存储器控​​制器被禁用以节省电力。 电源管理电路基于外部异步时钟执行刷新周期。 此外,电源管理电路将某些PCI总线信号驱动到某一状态,以避免由于存在连接到PCI总线的3.3伏和5伏组件的混合而引起的漏电流。
    • 92. 发明授权
    • Apparatus and method for entering low power mode in a computer system
    • 在计算机系统中进入低功率模式的装置和方法
    • US5721935A
    • 1998-02-24
    • US801200
    • 1997-02-18
    • Todd J. DeSchepperJames R. ReifJames R. EdwardsMichael J. CollinsJohn E. Larson
    • Todd J. DeSchepperJames R. ReifJames R. EdwardsMichael J. CollinsJohn E. Larson
    • G06F1/32
    • G06F1/3287G06F1/3203Y02B60/1282
    • A power management circuit for managing low power modes in a computer system, which implements four power modes, from highest power consumption to lowest power consumption: RUN mode, SLEEP mode, IDLE mode, and STANDBY mode. The computer system includes a PCI bus and an ISA bus, with a CPU-PCI bridge to connect the host bus and the PCI bus and a PCI-ISA bridge to connect the PCI bus and the ISA bus. The power management circuit transitions from SLEEP mode to IDLE mode by first determining if the CPU-PCI bridge is parked on the PCI bus and if it is in SLEEP mode. The power management circuit then waits for one refresh period and for all internal queues to empty before checking again to determine if the CPU-PCI bridge is still parked on the PCI bus and if it is still in SLEEP mode. If true, the CPU-PCI bridge transitions to IDLE mode. The power management circuit also performs low power refresh cycles when it is in IDLE or STANDBY mode. In those modes, the memory controller in the CPU-PCI bridge is disabled to conserve power. The power management circuit performs the refresh cycles based off an external asynchronous clock. Further, the power management circuit drives certain PCI bus signals to a certain state to avoid leakage current due to the existence of a mixture of 3.3-volt and 5-volt components connected to the PCI bus.
    • 一种用于管理计算机系统中的低功率模式的电源管理电路,其实现从最高功耗到最低功耗的四种功率模式:RUN模式,SLEEP模式,空闲模式和待机模式。 计算机系统包括PCI总线和ISA总线,具有连接主机总线和PCI总线的CPU-PCI桥接器和用于连接PCI总线和ISA总线的PCI-ISA网桥。 电源管理电路首先确定CPU-PCI桥是否停放在PCI总线上,如果它处于休眠模式,则从休眠模式转换到空闲模式。 然后,电源管理电路等待一个刷新周期,并且所有内部队列都清空,然后再次检查以确定CPU-PCI桥是否仍然停留在PCI总线上,以及是否仍处于休眠模式。 如果为真,则CPU-PCI桥转换到空闲模式。 电源管理电路在空闲或待机模式下也执行低功耗刷新周期。 在这些模式下,CPU-PCI桥接器中的存储器控​​制器被禁用以节省电力。 电源管理电路基于外部异步时钟执行刷新周期。 此外,电源管理电路将某些PCI总线信号驱动到某一状态,以避免由于存在连接到PCI总线的3.3伏和5伏组件的混合而引起的漏电流。
    • 93. 发明授权
    • Fully pipelined and highly concurrent memory controller
    • 完全流水线和高度并发的内存控制器
    • US5537555A
    • 1996-07-16
    • US34290
    • 1993-03-22
    • John A. LandryGary W. ThomePaul A. SantelerRandy M. BonellaMichael J. Collins
    • John A. LandryGary W. ThomePaul A. SantelerRandy M. BonellaMichael J. Collins
    • G06F12/00G06F12/06G06F13/16G06F13/00
    • G06F13/1615
    • A memory controller which makes maximum use of any processor pipelining and runs a large number of cycles concurrently. The memory controller can utilize different speed memory devices and run each memory device at its desired optimal speed. The functions are performed by a plurality of simple, interdependent state machines, each responsible for one small portion of the overall operation. As each state machine completes its function, it notifies a related state machine that it can now proceed and proceeds to wait for its next start or proceed indication. The next state machine operates in a similar fashion. The state machines responsible for the earlier portions of a cycle have started their tasks on the next cycle before the state machines responsible for the later portions of the cycle have completed their tasks. The memory controller is logically organized as three main blocks, a front end block, a memory block and a host block, each being responsible for interactions with its related bus and components and interacting with the various other blocks for handshaking. The memory controller utilizes differing speed memory devices, such as 60 ns and 80 ns, on an individual basis, with each memory device operating at its full designed rate. The speed of the memory is stored for each 128 kbyte block of memory and used when the memory cycle is occurring to redirect a state machine, accomplishing a timing change of the memory devices.
    • 一个内存控制器,最大程度地利用任何处理器流水线并同时运行大量的周期。 存储器控制器可以利用不同的速度存储器件并以其期望的最佳速度运行每个存储器件。 这些功能由多个简单的相互依赖的状态机执行,每个状态机负责整个操作的一小部分。 当每个状态机完成其功能时,它通知相关的状态机它现在可以继续,并继续等待下一个启动或继续指示。 下一台状态机以类似的方式运行。 负责循环早期部分的状态机在下一个循环中开始执行任务,然后负责循环后期部分的状态机完成任务。 存储器控制器在逻辑上组织为三个主要块,前端块,存储器块和主机块,每个都负责与其相关总线和组件的交互,并与各种其他块进行交互。 存储器控制器使用不同的速度存储器件,例如60ns和80ns,各个存储器件以其完全设计的速率工作。 存储器的速度存储每个128 KB的存储器块,并且当发生存储器周期以重定向状态机时使用,实现存储器件的定时改变。
    • 94. 发明授权
    • Recovery of metal values from zinc plant residues
    • 从锌植物残渣回收金属价值
    • US5348713A
    • 1994-09-20
    • US929927
    • 1992-08-14
    • Derek E. KerfootMichael J. CollinsMichael E. Chalkley
    • Derek E. KerfootMichael J. CollinsMichael E. Chalkley
    • C22B7/00C22B15/00C22B19/30C22B3/08
    • C22B13/045C22B11/042C22B15/0067C22B19/22C22B19/30C22B7/007Y02P10/214Y02P10/234Y02P10/236
    • A process is disclosed for recovering zinc, lead, copper and precious metals from zinc plant residue, said process comprising leaching the residue with return zinc spent electrolyte, neutralizing residual acid and reducing ferric iron in the solution by addition of zinc sulphide concentrate in the presence of a limited quantity of oxygen, flotation of the resulting slurry to separate unreacted zinc sulphide, treatment of flotation tailings with sulphur dioxide and elemental sulphur to further leach iron, zinc and impurity elements and precipitate copper, flotation of the resulting slurry to separate a copper sulphide concentrate, thickening, filtering and washing of the flotation tailings followed by addition of lime and sodium sulphide to activate lead sulphate and flotation of a lead concentrate from the residue. Iron and impurity elements are precipitated from the copper flotation tailings thickener overflow solution by addition of zinc hydroxide sludge, lime and oxygen to produce a high strength, iron free zinc sulphate solution.
    • 公开了一种用于从锌植物残渣中回收锌,铅,铜和贵金属的方法,所述方法包括用返回的锌废电解液浸出残余物,通过在存在下加入硫化锌浓缩物中和残留酸和还原三价铁,还原三价铁 的有限量的氧气,所得浆料的浮选以分离未反应的硫化锌,用二氧化硫和元素硫处理浮选尾矿以进一步浸出铁,锌和杂质元素并沉淀铜,将所得浆液浮选分离铜 硫化物浓缩物,增稠,过滤和洗涤浮选尾矿,然后加入石灰和硫化钠以活化硫酸铅并从残余物中浮选铅精矿。 通过加入氢氧化锌污泥,石灰和氧气,从铜浮选尾矿增稠剂溢流溶液中沉淀出铁和杂质元素,产生高强度的无铁硫酸锌溶液。
    • 97. 发明授权
    • Analytical process in which materials to be analyzed are directly and
indirectly heated and dried by microwave radiation
    • 要分析的材料通过微波辐射直接和间接加热和干燥的分析过程
    • US4681996A
    • 1987-07-21
    • US811540
    • 1985-12-19
    • Michael J. CollinsWyatt P. Hargett, Jr.
    • Michael J. CollinsWyatt P. Hargett, Jr.
    • G01N5/04G01N22/04H05B6/80H05B6/78G01N25/00
    • H05B6/80G01N22/04G01N5/045H05B2206/046
    • An apparatus for controllably heating material, such as a material to be analyzed for volatiles or non-volatiles contents, directly and indirectly by microwave radiation, includes a chamber, in which the material to be heated is placed, a source of microwave radiation, for radiating onto materials in the chamber and for controllably heating such a material, and a support for such material, which support includes a matrix of a material which transmits microwave radiation, and also includes particulate material therein which absorbs microwave radiation. The absorptive material is one that has a Curie temperature, above which it is transmissive of microwave radiation, so as thereby to prevent excessive heating of the support and the supported material which is to be heated. The matrix material is stable and form-retaining at the Curie temperature of the dispersed material. Preferably the support matrix will be of a silicone rubber or of a polyfluoroalkylene polymer, such as polytetrafluoroethylene, and the dispersed material will be a ferrite, garnet or a mixture thereof. The apparatus may include a turntable for one or more supports, an automatic electronic balance, computerized controls and readout means. Also within the invention are the described support, and processes for heating and drying, in a preferred embodiment of which processes a particulate diluent or dispersant for the sample being treated is employed to prevent overheating of the sample.
    • 用于通过微波辐射直接和间接地可控地加热材料(例如要分析的挥发物或非挥发物含量的材料)的装置包括其中放置有待加热材料的室,微波辐射源,用于 辐射到室中的材料上并且用于可控地加热这种材料,以及用于这种材料的支撑件,该支撑件包括透射微波辐射的材料的基体,并且还包括吸收微波辐射的颗粒材料。 吸收材料是具有居里温度的吸收材料,其上面是微波辐射的透射,从而防止支撑体和受热材料的过度加热。 基质材料在分散材料的居里温度下是稳定的并保持形状。 优选地,载体基质为硅橡胶或多氟亚烷基聚合物如聚四氟乙烯,分散的材料为铁氧体,石榴石或其混合物。 该装置可以包括用于一个或多个支撑件的转台,自动电子天平,计算机控制和读出装置。 在本发明中还包括所述的加热和干燥的支撑物和加热和干燥方法,在其优选实施方案中,采用待处理样品的颗粒状稀释剂或分散剂来防止样品过热。
    • 98. 发明授权
    • Apparatus and process for automatically determining fat contents of foods
    • 自动确定食品中脂肪含量的装置和方法
    • US4566312A
    • 1986-01-28
    • US606352
    • 1984-05-02
    • Michael J. CollinsRonald J. Goetchius
    • Michael J. CollinsRonald J. Goetchius
    • G01N5/04G01N9/36G01N33/06G01N9/04G01N25/56
    • G01N9/36G01N33/06G01N5/045
    • 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.
    • 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。
    • 99. 发明授权
    • Method and apparatus for improving weighing accuracy
    • 提高称重精度的方法和装置
    • US4291775A
    • 1981-09-29
    • US90286
    • 1979-11-01
    • Michael J. Collins
    • Michael J. Collins
    • G01G21/28
    • G01G21/28
    • A method and apparatus is described for improving the weighing accuracy of sensitive automatic balances when weighing heated substances. This is accomplished by substantially eliminating or reducing convection currents from interfering with and fluctuating the weight being sensed. An air barrier shield is used to cover the balance plate without contacting or touching the balance, thereby eliminating convection air currents from interfering with the movement of the balance. The air barrier is permeable to microwave radiation and capable of absorbing moisture and other volitilized substances while being substantially impermeable to air currents. Glass fiber matting or padding is particularly useful for forming the air barrier enclosure. The invention is particularly applicable to analytical determinations which require microwave heating of the substance to remove volatiles and the requirement to accurately and sensitively weigh the substances while still hot using an electrical balance.
    • 描述了一种用于在称重加热物质时提高敏感自动平衡的称重精度的方法和装置。 这通过基本上消除或减少对流来干扰和感测到的重量而实现。 空气屏障用于覆盖平衡板而不接触或接触天平,从而消除对流气流干扰天平的运动。 空气屏障对微波辐射是可渗透的,并且能够吸收水分和其它挥发物质,同时基本上不透气。 玻璃纤维垫或填料对于形成空气阻隔罩特别有用。 本发明特别适用于需要微波加热物质以除去挥发物的分析测定,以及在使用电气平衡仍然热的情况下准确地和敏感地称量物​​质的要求。