专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4554499A Computer controlled motor 失效
标题翻译：计算机控制电机
公开(公告)号：US4554499A
公开(公告)日：1985-11-19
申请号：US664110
申请日：1984-10-24
申请人： Leonard H. Sherman , James R. Swartz , James M. Williams
发明人： Leonard H. Sherman , James R. Swartz , James M. Williams
IPC分类号： G05D7/06 , H02P7/00 , H02P8/00
CPC分类号： G05D7/0676 , H02P7/00 , Y10T137/0329
摘要： To control a motor, a pulse width modulated signal from a computer is fed to a capacitor which stores each pulse as a voltage proportional to the width of the pulse, the capacitor being reset to zero by a leading edge reset circuit. The voltage on the capacitor is sampled by a sample/hold circuit the output of which is fed to a converter which converts the voltage signal to a frequency signal exponentially related to the voltage, and hence to the pulse width. The converter then powers a driver which drives the motor. The exponential relationship between the pulses and the signal fed to the motor permits a large variationin the frequency signal based on a small variation in pulse width and hence permits accurate control of the motor.
摘要翻译：为了控制电动机，来自计算机的脉冲宽度调制信号被馈送到电容器，其将每个脉冲存储为与脉冲宽度成比例的电压，电容器由前沿复位电路复位为零。电容器上的电压由采样/保持电路采样，该采样/保持电路的输出被馈送到转换器，该转换器将电压信号转换为与电压成指数相关的频率信号，并因此转换成脉冲宽度。然后，转换器为驱动电机的驱动器供电。脉冲和馈送到电机的信号之间的指数关系允许基于脉冲宽度的小变化对频率信号进行大的变化，从而允许电机的精确控制。

2. 发明授权

US5524278A Method and apparatus for determining a serving communication system where communication systems operate conjunctively 失效
标题翻译：用于确定通信系统连续运行的服务通信系统的方法和装置
公开(公告)号：US5524278A
公开(公告)日：1996-06-04
申请号：US832092
申请日：1992-02-06
申请人： James M. Williams , Robert F. D'Avello , Robert K. Krolopp
发明人： James M. Williams , Robert F. D'Avello , Robert K. Krolopp
IPC分类号： H04W48/12 , H04W48/16 , H04Q7/20
CPC分类号： H04W48/12 , H04W48/16
摘要： A method and apparatus is provided for facilitating scanning of radio control channels where a plurality of communication systems conjunctively cover the same area. A subscriber unit receives an overhead message train on a control channel which includes a channel count representing the number of control channels of a communication system. Subsequently, the subscriber unit scans a channel count number of control channels to tune to a control channel being used by a communication system having coverage for the subscriber unit. This scanning of control channels starts with a predetermined start control channel which corresponds to the logical number of the control channel in a sequence of control channels which is after the channel count control channel. In addition, an apparatus may be provided to transmit, in the overhead message train, a subscriber unit control message with an address indicating that a communication system is operating within a coverage area.
摘要翻译：提供了一种用于便于扫描多个通信系统的无线电控制信道的方法和装置，其中多个通信系统结合地覆盖相同的区域。订户单元在控制信道上接收包括表示通信系统的控制信道数量的信道数的控制信道的开销消息列。随后，用户单元扫描信道数量的控制信道以调谐到由具有用户单元的覆盖的通信系统使用的控制信道。控制信道的这种扫描从对应于在信道计数控制信道之后的控制信道序列中的控制信道的逻辑号开始的预定起始控制信道开始。此外，可以提供一种装置，用于在开销消息列中发送具有指示通信系统在覆盖区域内操作的地址的用户单元控制消息。

3. 发明授权

US08047294B2 Dual flapper safety valve 有权
标题翻译：双挡板安全阀
公开(公告)号：US08047294B2
公开(公告)日：2011-11-01
申请号：US12857869
申请日：2010-08-17
申请人： James D. Vick, Jr. , Michael B. Vinzant , James M. Williams
发明人： James D. Vick, Jr. , Michael B. Vinzant , James M. Williams
IPC分类号： E21B34/12 , E21B43/00 , E21B17/18
CPC分类号： E21B34/10 , E21B2034/005
摘要： A valve system for use in a subterranean well, the valve having multiple closure devices, or a closure device and a device for protecting the closure device. A valve system includes a valve with a closure assembly. The closure assembly has a closure device and a protective device which alters fluid flow through a flow passage of the valve prior to closure of the closure device to thereby protect the closure device. A safety valve system includes a safety valve with a closure assembly having at least two closure devices arranged in series for controlling flow through a flow passage of the safety valve. Another safety valve system includes a safety valve assembly including multiple safety valves arranged in parallel. One portion of fluid from a fluid source flows through one of the safety valves, while another portion of fluid from the fluid source flows through another safety valve.
摘要翻译：一种用于地下井的阀系统，该阀具有多个封闭装置，或一封闭装置以及用于保护封闭装置的装置。阀系统包括具有闭合组件的阀。封闭组件具有闭合装置和保护装置，其在闭合装置关闭之前改变通过阀的流动通道的流体流动，从而保护封闭装置。安全阀系统包括具有闭合组件的安全阀，所述闭合组件具有串联布置的至少两个闭合装置，用于控制通过安全阀的流动通道的流动。另一个安全阀系统包括一个安全阀组件，它包括并联排列的多个安全阀。来自流体源的流体的一部分流过安全阀之一，而来自流体源的另一部分流体流过另一安全阀。

4. 发明授权

US5475735A Method of providing wireless local loop operation with local mobility for a subscribed unit 失效
标题翻译：为订阅单元提供具有本地移动性的无线本地环路操作的方法
公开(公告)号：US5475735A
公开(公告)日：1995-12-12
申请号：US160720
申请日：1993-12-02
申请人： James M. Williams , John P. Lodwig
发明人： James M. Williams , John P. Lodwig
IPC分类号： H04W8/04 , H04W76/02 , H04W84/14 , H04Q7/38
CPC分类号： H04W8/04 , H04W76/02 , H04W84/14
摘要： Mobility is provided for wireless local loop radiotelephone systems by providing the home access network of a subscriber unit with a home access number. Upon registration of the subscriber unit with its home access network, the home access number is transmitted to the subscriber unit for storage there. When the subscriber unit moves to a visited access network and registers there, the subscriber unit transmits the home access number to the visited access network, which uses the home access number to contact the home access network. Since all call originations and terminations by and to the subscriber unit occur via the individual subscriber line appearance at the PSTN, a minimum of special network elements are required for subscriber unit mobility when the home access number is stored at the subscriber unit.
摘要翻译：通过向用户单元的家庭接入网络提供家庭接入号码来为无线本地环路无线电话系统提供移动性。在用户单元与其归属接入网络注册时，将归属接入号码发送到用户单元以在那里存储。当用户单元移动到访问接入网络并在那里登记时，用户单元将家庭接入号码发送到使用家庭接入号码的接入接入网络与家庭接入网络联系。由于用户单元的所有呼叫始发和终止通过PSTN处的个体用户线路出现，所以当用户单元存储家庭接入号码时，对于用户单元移动性需要最少的特殊网元。

5. 发明授权

US5430790A Call delivery service within a radiotelephone communication system 失效
标题翻译：无线电话通信系统内的呼叫传送服务
公开(公告)号：US5430790A
公开(公告)日：1995-07-04
申请号：US318169
申请日：1994-06-13
申请人： James M. Williams
发明人： James M. Williams
IPC分类号： H04W68/00 , H04Q7/22 , H04M11/00
CPC分类号： H04W68/00
摘要： The present invention relates to a method and apparatus for enabling RT subscribers (15, 25 and 35), in radio service areas (1, 2 and 3) serviced by a radio telephone control system (11, 21 and 31) (RTCS), to receive calls originally presented to non-servicing RTCSs (11, 21 or 31). In this effort the RTCS (11) currently serving the RT subscriber (15) receives information and a callback number indicating that a call, placed to the RT subscriber (15), is in progress at a remote RTCS (21 or 31). In response, the currently serving RTCS (11) pages the RT subscriber (15). Thereafter, upon receipt of the RT subscriber's page response, the currently serving RTCS (11) calls the callback number so as to connect the RT subscriber (15) to the call in progress.
摘要翻译：本发明涉及一种在由无线电话控制系统（11,21和31）（RTCS）服务的无线电业务区域（1,2和3）中实现RT用户（15,25和35）的方法和装置，接收最初提交给非维修RTCS（11,21或31）的呼叫。在这种努力中，当前服务于RT订户（15）的RTCS（11）接收信息和回叫号码，该回叫号码指示在远程RTCS（21或31）处放置到RT用户（15）的呼叫正在进行。作为响应，当前服务的RTCS（11）页面RT订户（15）。此后，当接收到RT订户的页面响应时，当前服务的RTCS（11）呼叫回叫号码，以将RT用户（15）连接到进行中的呼叫。

6. 发明授权

US5408162A Fluorescent lamp power supply and control unit 失效
标题翻译：荧光灯电源和控制单元
公开(公告)号：US5408162A
公开(公告)日：1995-04-18
申请号：US43152
申请日：1993-03-31
申请人： James M. Williams
发明人： James M. Williams
IPC分类号： H05B41/282 , H05B41/392 , H05B41/36
CPC分类号： H05B41/3925 , H05B41/2824 , Y10S315/05 , Y10S315/07
摘要： A power supply and control circuit is provided for driving a fluorescent lamp from a low voltage DC power source such as a battery. A DC-to-AC inverter coupled to a switching regulator converts low DC voltage into a higher AC voltage for driving the fluorescent lamp. The lamp is included in a feedback loop which includes a circuit for producing a feedback signal indicative of the magnitude of current conducted by the lamp. The feedback signal is applied to the switching regulator to produce in the lamp a regulated current and, hence, a regulated lamp intensity. The magnitude of the lamp current can be adjusted to enable the intensity of the fluorescent lamp to be smoothly and continuously varied (without "dead-spots" or "pop-on") over a chosen intensity range, including if desired, from substantially full OFF to full ON. A method for driving a fluorescent lamp from a low voltage DC power source is also provided.
摘要翻译：提供电源和控制电路用于从诸如电池的低压DC电源驱动荧光灯。耦合到开关稳压器的DC-AC逆变器将低DC电压转换成用于驱动荧光灯的更高AC电压。灯包括在反馈回路中，该反馈回路包括用于产生指示由灯传导的电流大小的反馈信号的电路。反馈信号被施加到开关调节器，以在灯中产生调节电流，并因此产生稳定的灯强度。可以调整灯电流的大小，以使得荧光灯的强度能够在所选择的强度范围内（包括如果需要）从基本上充分地平滑且连续地变化（没有“死点”或“弹出”） OFF至全开。还提供了一种从低压直流电源驱动荧光灯的方法。

7. 发明授权

US07238597B2 Boron ion delivery system 失效
标题翻译：硼离子输送系统
公开(公告)号：US07238597B2
公开(公告)日：2007-07-03
申请号：US10667277
申请日：2003-09-19
申请人： James M. Williams
发明人： James M. Williams
IPC分类号： G21K5/10 , H01L21/26 , H01L21/425
CPC分类号： H05H1/54 , G21K1/08 , H01J37/3171 , H01L21/26513
摘要： A boron ion plasma, generated by use of a cathodic arc, is manipulated and delivered to a large flat product such as a silicon wafer with boron ion energies suitable for incorporation of boron atoms into solid state devices as one of the key steps in manufacturing solid state electronics and with uniformity of boron dose over the area suitable for the scale of manufacturing desired.
摘要翻译：通过使用阴极电弧产生的硼离子等离子体被操纵并输送到具有适合于将硼原子并入固态器件的硼离子能量的大平坦产品例如硅晶片，作为制造固体的关键步骤之一并且在适合于所需制造规模的区域上具有硼剂量的均匀性。

8. 发明授权

US4775999A Registration of radiotelephones in networked cellular radiotelephone systems 失效
标题翻译：无线电话在联网蜂窝无线电话系统中的注册
公开(公告)号：US4775999A
公开(公告)日：1988-10-04
申请号：US131297
申请日：1987-12-07
申请人： James M. Williams
发明人： James M. Williams
IPC分类号： H04W36/14 , H01Q7/04
CPC分类号： H04W36/14
摘要： Adjacent cellular systems (101-103) are interconnected to form a network providing telephone coverage to mobiles located throughout their combined coverage areas (111-113). Each networked cellular system (101-103) includes base sites (412, 414, 416) located in cells (402, 404, 406) and a control terminal (420) coupled by data and voice lines to the base sites, a telephone central office (422) and the other cellular systems. Each base site (412, 414, 416) includes a base site controller 950, a scanning receiver 910, signalling transceiver 912 and up to eight voice channel transceivers (901-908). As mobiles move about the networked coverage area (111-113), intrasystem handoffs are provided between cells of the same cellular system, and intersystem handoffs are provided between border cells of adjacent cellular systems. Mobiles are paged throughout the networked coverage area (111-113) in the paging area (121-136) in which the mobile last registered. Registration parameters are updated by the control terminal (420) and base sites (412, 414, 416) and sent to mobiles in the overhead message train. Mobiles automatically register in response to receipt of the overhead message train when moving between paging areas (121-136) according to the flow charts of FIGS. 5 and 6.
摘要翻译：相邻的蜂窝系统（101-103）被互连以形成向位于其组合覆盖区域（111-113）内的移动台提供电话覆盖的网络。每个网络蜂窝系统（101-103）包括位于小区（402,404,406）中的基站（412,414,416）和由数据和语音线路耦合到基站的控制终端（420），电话中心办公室（422）和其他蜂窝系统。每个基站（412,414,416）包括基站点控制器950，扫描接收机910，信令收发器912和多达八个话音信道收发机（901-908）。随着移动台围绕网络覆盖区域（111-113）移动，在相同蜂窝系统的小区之间提供系统间切换，并且在相邻蜂窝系统的边界小区之间提供系统间切换。移动台在移动终端登记的寻呼区域（121-136）中的整个联网覆盖区域（111-113）中被分页。注册参数由控制终端（420）和基站（412,414,416）更新，并被发送到开销消息列中的移动台。当根据图1和图2的流程图在寻呼区域（121-136）之间移动时，移动站响应于接收到开销消息列表而自动注册。 5和6。

9. 发明授权

US4490055A Automatically adjustable delay function for timed typamatic 失效
标题翻译：自动可调延时功能，适用于定时型
公开(公告)号：US4490055A
公开(公告)日：1984-12-25
申请号：US393928
申请日：1982-06-30
申请人： Carl F. Johnson , James M. Williams
发明人： Carl F. Johnson , James M. Williams
IPC分类号： B41J5/00 , B41J5/28 , G06F3/02
CPC分类号： B41J5/28
摘要： A typewriter is described which has an electronic keyboard utilizing a timed delay to determine whether a depressed key is indicative of the desire to print or display repetitive letters represented by that key. The typewriter is provided with a technique for automatically adjusting the length of the delay such that a slow typist with sluggish finger movement will automatically cause the extension of the delay time and thereby prevent unwanted repetitive characters while a fast, very rhythmic typist will not cause the automatic extension of the delay time and thereby will benefit from a shorter delay time and will have a higher output or productivity as a result thereof.The automatic extension is accomplished by timing the period of time that keylevers are held depressed and when that time approaches but does not exceed the preset automatic delay time, the delay time is then extended a predetermined amount.
摘要翻译：描述了一种打字机，其具有利用定时延迟的电子键盘来确定按下的键是否指示打印或显示由该键表示的重复字母的愿望。打字机具有自动调整延迟长度的技术，使得手指移动迟缓的慢打字员将自动延长延迟时间，从而防止不必要的重复字符，而快速，非常有节奏的打字员不会导致自动延长延迟时间，从而可以从更短的延迟时间中受益，并且由于此而具有更高的产出或生产率。自动扩展是通过定时键控按钮被按下的时间段来实现的，并且当该时间接近但不超过预设的自动延迟时间时，延迟时间然后被延长预定量。

10. 发明授权

US4274752A Keyboard multiple switch assembly 失效
标题翻译：键盘多开关组合
公开(公告)号：US4274752A
公开(公告)日：1981-06-23
申请号：US25825
申请日：1979-04-02
申请人： Daniel L. Huber , Thomas M. Paulson , James M. Williams
发明人： Daniel L. Huber , Thomas M. Paulson , James M. Williams
IPC分类号： G06F3/02 , B41J5/08 , H01H13/00 , H01H13/705 , H01H13/807 , H03K17/975
CPC分类号： H01H13/807 , H01H13/705 , H03K17/975 , H01H2215/034 , H01H2225/002 , H01H2225/018 , H01H2235/03 , H01H2239/006 , H03K2017/9755
摘要： An electronic switch keyboard for typewriters or office machines includes a multiple switch at selected key positions to provide two signal inputs to a utilization device. A first capacitor switch is actuated to provide a first signal upon initial key depression and a second contact switch, common to all selected key positions, is actuated to provide a second signal upon further key depression at the selected key positions. A ground plane forms a portion of the contact switch and further serves to reduce parasitic capacitance and to shield the capacitive switches from stray electrical noise occasioned by the contact switch or other electrical inputs. A dielectric material is used to accurately separate the ground plane from the capacitive switch and further serves as a force spreading device for the contact switch. When the keyboard is used in conjunction with a typewriter, the first signal may be used to effect character selection and printing and the second signal to effect repeated printing of the same character. Consistent with prior mechanical typewriter keyboards, three increasing levels of force are required to be overcome as the key is depressed: a pretravel force, a first switch actuation force, and a second switch actuation force.
摘要翻译：用于打字机或办公室机器的电子开关键盘包括在所选择的键位置处的多个开关，以向利用装置提供两个信号输入。启动第一电容器开关以在初始键按压时提供第一信号，并且致动所有所选键位置共同的第二接触开关，以在所选择的键位置处进一步按下键时提供第二信号。接地平面形成接触开关的一部分，并且还用于减小寄生电容并且将电容开关屏蔽到接触开关或其它电气输入引起的杂散电噪声。介电材料用于将接地平面与电容式开关精确分开，并且还用作接触开关的力传播装置。当键盘与打字机一起使用时，可以使用第一信号来影响字符选择和打印，并且第二信号可以用于实现相同字符的重复打印。与现有的机械打字机键盘一致，当键被按下时，需要克服三个增加的力：预行程力，第一开关致动力和第二开关致动力。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式