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公开(公告)号：US5967045A
公开(公告)日：1999-10-19
申请号：US175662
申请日：1998-10-20
CPC分类号： B41J2/17556
摘要： For control of static ink delivery pressure, a system and method make use of an outer chamber having a first outlet for delivery of ink to an ink printing mechanism, an inner chamber having a second outlet for delivery of ink to the outer chamber, and a pressure source that applies negative pressure to the outer chamber. The inner chamber maintains an internal negative pressure that is selected to control a level of the ink within the outer chamber relative to a height of the second outlet within the outer chamber. In particular, inner chamber maintains the ink level at a substantially constant level by replenishing the volume of ink within the outer chamber upon consumption. When ink is consumed by the ink printing mechanism, the inner chamber delivers a proportional volume of ink to the outer chamber that is sufficient to restore the ink to the desired level. The negative pressure applied to the outer chamber is operative on the substantially constant volume of ink maintained within the outer chamber, and can be readily selected to provide a substantially uniform static ink delivery pressure from the outer chamber to the ink printing mechanism. For an inkjet printhead, the level of negative pressure applied to the outer chamber serves to control static nozzle pressure to avoid excessive wetting that can adversely affect jetting characteristics. The level of negative pressure can be selected based on the physical characteristics of the ink, the printing mechanism, or both.
摘要翻译： 为了控制静态油墨输送压力，系统和方法利用具有用于将油墨输送到油墨印刷机构的第一出口的外部室，具有用于将油墨输送到外部室的第二出口的内部室，以及 压力源向外室施加负压。 内室保持内部负压，其被选择为相对于外室内的第二出口的高度来控制外室内的油墨水平。 特别地，内腔通过在消耗后补充外室内的油墨体积而将油墨水平维持在基本恒定的水平。 当墨水被墨水打印机构消耗时，内部腔室将足够的墨水的比例体积的墨水输送到外部腔室，以将墨水恢复到期望的水平。 施加到外部室的负压在保持在外部室中的基本恒定体积的油墨上操作，并且可以容易地选择以提供从外部室到油墨印刷机构的基本均匀的静态油墨输送压力。 对于喷墨打印头，施加到外部室的负压水平用于控制静态喷嘴压力，以避免可能不利地影响喷射特性的过度润湿。 可以基于油墨，印刷机构或两者的物理特性来选择负压水平。
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2.发明授权Communication system for the transfer of small digital message blocks and large digital message blocks 失效用于传输小数字消息块和大数字消息块的通信系统
公开(公告)号：US4763323A
公开(公告)日：1988-08-09
申请号：US129386
申请日：1987-11-24
IPC分类号： H04L12/403 , H04L29/06 , H04J3/16
CPC分类号： H04L12/4015 , H04L12/403 , H04L29/06 , H04L12/40169
摘要： A communication system for the transfer of small digital message blocks and large digital message blocks. A plurality of nodes are coupled to a common wideband communication channel capable of facilitating the transfer of small digital message blocks and large digital message blocks. One of the nodes is a master node controlling the communication of the communication channel by selectively polling the other of the plurality of nodes. The communication system has a first protocol for the transmission of small digital message blocks and a second protocol for the transmission of large digital message blocks. The master node establishes a polling priority for each of the plurality of nodes and polls those with a higher polling priority more frequently than those with a lower polling priority. The master node allows the one node being polled to communicate over the channel of either a small digital message block or a large digital message block. Further the master node adapts the polling priority for each of the nodes based upon a predetermined algorithm.
摘要翻译： 一种用于传输小数字消息块和大型数字消息块的通信系统。 多个节点耦合到能够促进小数字消息块和大数字消息块的传输的公共宽带通信信道。 其中一个节点是通过选择性地轮询多个节点中的另一个来控制通信信道的通信的主节点。 通信系统具有用于传输小数字消息块的第一协议和用于传输大数字消息块的第二协议。 主节点为多个节点中的每个节点建立轮询优先级，并且比具有较低轮询优先级的轮询优先级更频繁地轮询具有较高轮询优先级的轮询优先级。 主节点允许轮询的一个节点通过小数字消息块或大数字消息块的信道进行通信。 此外，主节点基于预定算法来适应每个节点的轮询优先级。
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3.发明授权System for parallel implementation of combinatorial optimization in a multiprocessor network for generating search graphs for solving enumerative problems 失效用于在多处理器网络中并行实现组合优化的系统，用于生成用于解决枚举问题的搜索图
公开(公告)号：US5517654A
公开(公告)日：1996-05-14
申请号：US888936
申请日：1992-05-26
CPC分类号： G06F9/5027 , G06F9/546 , G06N5/003
摘要： The method and apparatus disclosed herein relates to parallel implementation of a combinatorial optimization in a multiprocessor network. The system operates as an intermediary between a root processor and a multiprocessor network. The system generates shadow nodes which are used to occupy idle capacity available within the multiprocessor network. Particularly, the shadow nodes are used to refine solutions for enumerative problems, search graph and the like while providing a near 100% utilization of a processor time in a multiprocessor network. The system provides a fully asynchronous and homogenous system design to enable the creation of locally ordered expansion queues.
摘要翻译： 本文公开的方法和装置涉及在多处理器网络中的组合优化的并行实现。 该系统作为根处理器和多处理器网络之间的中介。 系统生成用于占用多处理器网络内可用空闲容量的影子节点。 特别地，阴影节点用于在多处理器网络中提供近100％的处理器时间利用的情况下，提炼出枚举问题，搜索图等的解决方案。 该系统提供完全异步和均匀的系统设计，以创建本地有序的扩展队列。
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