Frequency hopping spread spectrum data communications system
    1.
    发明授权
    Frequency hopping spread spectrum data communications system 失效
    跳频扩频数据通信系统

    公开(公告)号:US5386435A

    公开(公告)日:1995-01-31

    申请号:US145406

    申请日:1993-10-29

    摘要: A frequency hopping spread spectrum wireless data communications network is disclosed. Time mark frames are transmitted by each base station at a regular cadence and each time mark frame contains all information necessary to determine the hopping sequence of channels, a sub-set of possible channels in use, and the particular channel upon which the time mark was transmitted. Receipt of the time mark resynchronizes a slot clock that is used by the wireless terminals in implementing a media access protocol with defined synchronous time slots. The base station to roaming terminal radio link is half duplex. Each base station broadcasts an end-of-message frame during a hop period that indicates that it has no more data to send during that hop. If there are no inbound messages a roaming terminal needs to send, it puts its receiver in a low power mode until the next hop time approaches. Look ahead acquisition of the hopping sequence for a nearby base station when the received signal level for the current base station drops is also disclosed.

    摘要翻译: 公开了跳频扩频无线数据通信网络。 每个基站以规则的节奏发送时标帧,并且每次标记帧包含确定信道的跳频序列所必需的所有信息,正在使用的可能信道的子集,以及时间标记为 传输。 时间标记的接收在实现具有定义的同步时隙的媒体访问协议的情况下重新同步无线终端使用的时隙时钟。 漫游终端无线链路的基站是半双工。 在跳跃期间,每个基站广播消息结束帧,其指示在该跳跃期间它没有更多的数据要发送。 如果没有漫游终端需要发送的入站消息,则将其接收机置于低功率模式,直到下一跳接近。 当公开当前基站的接收信号电平下降时,向前查看附近基站的跳频序列。

    Frequency hopping spread spectrum data communications system
    2.
    发明授权
    Frequency hopping spread spectrum data communications system 失效
    跳频扩频数据通信系统

    公开(公告)号:US5287384A

    公开(公告)日:1994-02-15

    申请号:US961787

    申请日:1992-10-15

    摘要: A frequency hopping spread spectrum wireless data communications network is disclosed. Time mark frames are transmitted by each base station at a regular cadence and each time mark frame contains all information necessary to determine the hopping sequence of channels, a sub-set of possible channels in use, and the particular channel upon which the time mark was transmitted. Receipt of the time mark resynchronizes a slot clock that is used by the wireless terminals in implementing a media access protocol with defined synchronous time slots. The base station to roaming terminal radio link is half duplex. Each base station broadcasts an end-of-message frame during a hop period that indicates that it has no more data to send during that hop. If there are no inbound messages a roaming terminal needs to send, it puts its receiver in a low power mode until the next hop time approaches. Look ahead acquisition of the hopping sequence for a nearby base station when the received signal level for the current base station drops is also disclosed.

    摘要翻译: 公开了跳频扩频无线数据通信网络。 每个基站以规则的节奏发送时标帧,并且每次标记帧包含确定信道的跳频序列所必需的所有信息,正在使用的可能信道的子集,以及时间标记为 传输。 时间标记的接收在实现具有定义的同步时隙的媒体访问协议的情况下重新同步无线终端使用的时隙时钟。 漫游终端无线链路的基站是半双工。 在跳跃期间,每个基站广播消息结束帧,其指示在该跳跃期间它没有更多的数据要发送。 如果没有漫游终端需要发送的入站消息,则将其接收机置于低功率模式,直到下一跳接近。 当公开当前基站的接收信号电平下降时,向前查看附近基站的跳频序列。

    In-line, adjustable gap cutting sheeter for printed webs
    3.
    发明授权
    In-line, adjustable gap cutting sheeter for printed webs 失效
    用于印刷幅材的在线可调间隙切割片

    公开(公告)号:US5199341A

    公开(公告)日:1993-04-06

    申请号:US870394

    申请日:1992-04-17

    申请人: Donald A. Jones

    发明人: Donald A. Jones

    摘要: A gap cutting sheeter having controls to adjust the cutting position of the first and second flying shears relative to each other to set the gap size to a particular printed sheet. The downstream flying shear can be set up to cut the leading edge or the following edge of while the web is moving. When cutting the leading edge, a flexible flipper is provided just ahead of the flying shear to contact and push successive cut chips toward a vacuum chip removal system. Alternating vacuum removes the chips, and pulsing positive air pressure against the underside of a leading, trimmed edge guides it over the chip removal vacuum chamber to the downstream conveyor. A knockdown vane is provided just after the flying shear to press the leading edge of a cut signature against the downstream deck plate to prevent wrinkling of the cut signatures. Simple and rapid gap size adjustment is accomplished by electronically controlling the relative positions and speed of the first and second flying shears, the speed of the incoming web relative to the downstream speed of the cut signatures and the synchronized control of the high pressure fed vacuum chip removal system. In either embodiment, the important feature of the invention is the simple and rapid gap size adjustment which is made possible by electronically controlling and mechanically phasing the relative positions and speed of the first and second flying shears, the speed of the incoming web relative to the downstream speed of the cut sheets or signatures and the synchronized control of the high pressure fed, vacuum chip removal system.

    摘要翻译: 一种间隙切割片具有控制以调节第一和第二飞剪相对于彼此的切割位置,以将间隙尺寸设定为特定的印刷片。 可以设置下游的飞剪,以便在纸幅移动时切割前缘或后缘。 当切割前缘时,在飞剪之前提供柔性的挡板以接触并将连续切割的切屑推向真空切屑去除系统。 交替的真空去除芯片,并且使正面气压脉冲朝向前导修整边缘的下侧,将其引导到切屑去除真空室到下游输送机。 在飞剪之后提供击倒叶片,以将切割签名的前缘压向下游甲板板,以防止切割签名的起皱。 通过电子控制第一和第二飞剪的相对位置和速度,进入幅材相对于切割标记的下游速度的速度和高压进料真空芯片的同步控制来实现简单和快速的间隙尺寸调整 清除系统。 在任一实施例中,本发明的重要特征是通过电子控制和机械地相位第一和第二飞剪的相对位置和速度,进入幅材相对于第一和第二飞剪的速度而实现的简单和快速的间隙尺寸调整 切割片的下游速度或签名以及高压进给,真空切屑清除系统的同步控制。

    Sheeter for recycled and lightweight paper stocks
    4.
    发明授权
    Sheeter for recycled and lightweight paper stocks 失效
    可回收和轻量级的纸料

    公开(公告)号:US5265862A

    公开(公告)日:1993-11-30

    申请号:US951575

    申请日:1992-09-25

    IPC分类号: B65H29/68

    CPC分类号: B65H29/6618 B65H29/68

    摘要: An improved slow down system in sheet handling equipment which makes possible high speed handling of paper and plastic materials, including limp-bodied paper and plastic stocks, such as lightweight and recycled paper and plastic bags. In the prior high speed sheet handling systems, the slow down sections tend to jam because the limp-bodied sheets are easily deformed at higher speeds. A conventional snubber and a laydown device just following the high speed section of the sheet handling equipment lays down the trailing portion and edges of the first and successive incoming sheets, so that the lead edge of each successive sheet will clear all parts of the previous sheet. The sheets are squared by a tape slow down section, which comprises sets of adjustable slow down tapes with idler rollers and lower slow speed tapes with idler rollers, all running at the same speed. The idler rollers are adjustable so that the optimum stream can be obtained for any limp-bodied or lightweight sheets.

    摘要翻译: 改进的纸张处理设备的减速系统,可以高速地处理纸张和塑料材料,包括柔软的纸张和塑料原料,如轻质和再生纸和塑料袋。 在现有的高速纸张处理系统中,由于笨重的纸张以较高的速度容易地变形,因此减速部分会卡住。 刚刚跟随片材处理设备的高速部分的常规缓冲器和沉积装置将第一和连续进入的片材的后部和边缘放下,使得每个连续片材的引导边缘将清除前一片材的所有部分 。 纸张由磁带减速部分组成,其包括具有惰辊的可调减速带和具有惰辊的下部慢速带的组,所有这些都以相同的速度运行。 惰辊是可调节的,以便可以获得任何柔软或轻质的纸张的最佳流。

    Positive pressure dough dividers
    5.
    发明授权
    Positive pressure dough dividers 失效
    正压面团分隔器

    公开(公告)号:US4776785A

    公开(公告)日:1988-10-11

    申请号:US62627

    申请日:1987-06-16

    CPC分类号: A21C5/00

    摘要: A positive pressure dough divider comprising a hopper for dough, and a pair of rotatable sheeting rolls which carry the dough from said hopper into a transfer passage leading to a volumetric measuring chamber inside a rotating body which is adapted to stop or rotate for periods at reduced speed, such that, while the measuring chamber is being charged with dough from the said rolls, a maximum possible charging time is provided, and to move at greater speeds at other times to provide minimum possible delay between charging operations. The rolls are of sufficiently large diameter, and rotate in opposite directions at such a speed, as to produce or maintain a dough of good gas retaining properties while providing a positive pressure rise along the direction of flow in the passage between the rolls sufficient to charge the measuring chamber or chambers. Cooling fluid is circulated within the interior of the rolls and adjacent the transfer passage to cool the dough moving between the rolls and through the transfer passage.

    摘要翻译: 一种正压面团分配器,包括用于面团的料斗,以及一对可旋转的薄片辊,其将面团从所述料斗运送到通向旋转体内的体积测量室的输送通道中,该旋转体适于停止或旋转减少的时间 使得当测量室从所述辊被充满面团时,提供最大可能的充电时间,并且在其它时间以更高的速度移动,以在充电操作之间提供最小可能的延迟。 辊具有足够大的直径,并且以这样的速度在相反方向上旋转,以便产生或维持良好的气体保持性能的面团,同时沿着辊之间的通道中的流动方向提供足够的充气的正压力上升 测量室或室。 冷却流体在辊的内部和传送通道的内部循环,以冷却在辊之间移动并通过传送通道的面团。

    In-line, continuous paper batching system
    6.
    发明授权
    In-line, continuous paper batching system 失效
    连续式连续造纸系统

    公开(公告)号:US5014974A

    公开(公告)日:1991-05-14

    申请号:US464970

    申请日:1990-01-16

    IPC分类号: B65H31/32

    CPC分类号: B65H31/32 B65H29/66

    摘要: An apparatus for in-line, high-speed stacking of paper signatures which includes two or more horizontally disposed batch forks having integral, pivoting fingers which project upstream towards an incoming flow of shingles being continuously conveyed from a sheeter. The batch forks are supported on a paper batching carriage, and can be raised and lowered from a pivot point, and retracted to transfer a partial stack of shingles to intermediate interrupt forks or to main pile forks for transfer to a conveyor. These additional paper handling forks cooperate with the batch forks and integral, pivoting fingers to continuously stack the shingled sheets in quantities determined by a counting and control system. The pivoting fingers depress the incoming signatures to separate them into stacks without slowing flow from a present rate of about 1200-1300 f.p.m. and higher.

    摘要翻译: 一种用于在线高速堆叠纸张签名的设备,其包括两个或更多个水平布置的批量叉,其具有整体的,枢转的指状物,其向上游朝向从片材机连续传送的进入的木瓦流。 批料叉被支撑在纸批量托架上,并且可以从枢轴点升高和降低,并且缩回以将部分瓦片板传递到中间中断叉或主桩叉以传送到输送机。 这些附加的纸张处理叉与批叉和一体的,枢转的手指配合,以由计数和控制系统确定的量连续堆叠带状片。 枢转的手指按压输入的签名以将它们分成堆叠,而不会从约1200-1300f.p.m的当前速率减慢流量。 和更高。

    Positive pressure dough divider
    7.
    发明授权
    Positive pressure dough divider 失效
    正压面团分配器

    公开(公告)号:US4573898A

    公开(公告)日:1986-03-04

    申请号:US638482

    申请日:1984-08-03

    CPC分类号: A21C5/04

    摘要: A positive pressure dough divider comprising a hopper (14) for dough, and a pair of rotatable sheeting rolls (15) which carry the dough from said hopper (14) into a transfer passage (16) leading to a volumetric measuring chamber (28) inside a rotating body (27) which is adapted to stop or rotate for periods at reduced speed, such that, while the measuring chamber (28) is being charged with dough from the said rolls (15), a maximum possible charging time is provided, and to move at greater speeds at other times to provide minimum possible delay between charging operations. The rolls (15) are of sufficiently large diameter, and rotate in opposite directions at such a speed, as to produce or maintain a dough of good gas retaining properties while providing a positive pressure rise along the direction of flow in the passage between the rolls sufficient to charge the measuring chamber or chambers.

    摘要翻译: PCT No.PCT / AU83 / 00133 Sec。 371日期1984年8月3日 102(e)日期1984年8月3日PCT提交1983年9月27日PCT公布。 公开号WO84 / 02633 日本1984年7月19日。一种正压面团分隔器,包括用于面团的料斗(14)和一对可旋转的薄片辊(15),其将面团从所述料斗(14)运送到传送通道(16) 位于旋转体(27)内部的容积测量室(28),其适于以减速的速度停止或旋转,使得当所述测量室(28)从所述辊(15)装入面团时, 提供最大可能的充电时间,并且在其他时间以更高的速度移动以在充电操作之间提供最小可能的延迟。 辊(15)具有足够大的直径,并且以这样的速度以相反方向旋转,以便产生或维持良好的气体保持性质的面团,同时沿着辊之间的通道中的流动方向提供正的压力升高 足以对测量室或室充电。