公开(公告)号：WO1997039523A1

公开(公告)日：1997-10-23

申请号：PCT/IB1996000331

申请日：1996-04-16

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  HEWLETT-PACKARD COMPANY

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS NORDEN AB ,  HEWLETT-PACKARD COMPANY ,  SHELTON, Boyd, N. ,  BUTHKER, Henricus, C., J.

IPC: H02P06/10

CPC classification number: H02P7/29 ,  H02P6/10

Abstract: A PWM controlled multiphase DC motor apparatus has a multiphase DC motor, a current sensor, and a PWM controller. The DC motor has multiple windings which turn on and off during commutation at a commutation frequency. The current sensor is coupled to sense power supply current flowing in all windings of the DC motor. The PWM controller is coupled to control the DC motor using a PWM signal at selected PWM frequency with variable duty cycle. Using the feedback from the current sensor, the PWM controller maintains approximately constant torque in the DC motor by adjusting the duty cycle of the PWM signal. The PWM controller includes a soft switching circuit which manipulates a voltage used to generate the controlling PWM signal in a manner which causes linear slewing of currents in the windings during commutation. The linear current slewing occurs at a slew rate that is slow relative to the PWM frequency to thereby reduce torque ripple during commutation. The combined features of continuous PWM duty cycle control and linear current slewing during commutation significantly reduces torque ripple at the fundamental commutation frequency, as well as at the first few harmonics. A method for PWM control of a multiphase DC motor is also described.

Abstract translation: PWM控制的多相直流电动机装置具有多相直流电动机，电流传感器和PWM控制器。 直流电动机具有多个绕组，其在换向频率的换向期间导通和关断。 电流传感器被耦合以感测在直流电动机的所有绕组中流动的电源电流。 PWM控制器被耦合以使用具有可变占空比的所选PWM频率的PWM信号来控制DC电动机。 使用电流传感器的反馈，PWM控制器通过调整PWM信号的占空比来保持直流电机的大致恒定的转矩。 PWM控制器包括一个软开关电路，其以在换向期间引起绕组中的电流的线性回转的方式操纵用于产生控制PWM信号的电压。 线性电流回转以相对于PWM频率缓慢的转换速率发生，从而减少换向期间的转矩波动。 在换向期间连续PWM占空比控制和线性电流回转的组合特征显着降低了基本换向频率以及前几个谐波处的转矩脉动。 还描述了一种用于多相DC电动机的PWM控制的方法。

公开(公告)号：WO1996016340A1

公开(公告)日：1996-05-30

申请号：PCT/IB1995000955

申请日：1995-11-02

Applicant: PHILIPS ELECTRONICS N.V. ,  HEWLETT-PACKARD COMPANY

Inventor： PHILIPS ELECTRONICS N.V. ,  HEWLETT-PACKARD COMPANY ,  HOFLAND, Lennart ,  SAVORD, Bernard, Joseph ,  SCAMPINI, Steven, Anthony

IPC: G01R33/565

CPC classification number: G01R33/56563 ,  G01R33/5676

Abstract: In a magnetic resonance method for imaging of a moving part of a body (106) temporary magnetic gradient fields (230) are applied and an echo signal (641, 642) is obtained after an excitation pulse (201). An image of the moving part is reconstructed from the received echo signals (240). The moving part introduces artefacts in the reconstructed image. These artefacts could be reduced when the instantaneous position of the moving part is known and the region of the moving part to be excited is adjusted according to this instantaneous position. This instantaneous position is derived from navigator signals (640). These navigator signals (640) could be generated independently from the other echo signals (641, 642) in the moving part of the body. A further reduction of artefacts in the image could be obtained by deriving a phase correction and a frequency correction from the navigator signals (640) and to apply the derived corrections to the received echo signals (641, 642). Also this method could be combined with ECG-triggering and respiratory gating.

Abstract translation: 在用于对身体的运动部分（106）成像的磁共振方法中，施加临时磁梯度场（230），并且在激励脉冲（201）之后获得回波信号（641,642）。 从接收到的回波信号（240）重建运动部分的图像。 移动部分在重建图像中引入人为因素。 当已知运动部件的瞬时位置并且根据该瞬时位置调整要激励的移动部件的区域时，可以减少这些人造物。 该导航器信号（640）导出该瞬时位置。 这些导航信号（640）可以独立于身体的运动部分中的其他回波信号（641,642）生成。 可以通过从导航器信号（640）导出相位校正和频率校正并且将导出的校正应用于接收到的回波信号（641,642）来获得图像中的伪像的进一步减少。 此外，该方法可以与ECG触发和呼吸门控组合。

公开(公告)号：WO1998018634A1

公开(公告)日：1998-05-07

申请号：PCT/US1997019724

申请日：1997-10-29

Applicant: HEWLETT-PACKARD COMPANY ,  DeROOS, Stephen, M. ,  MICHAEL, Donald, L. ,  GREEN, James, E. ,  HARVEY, James, A.

Inventor： HEWLETT-PACKARD COMPANY

IPC: B41J02/165

CPC classification number: B41J2/16511 ,  B41J2/16508

Abstract: A foam-filled cap (200) sealing ink-ejecting nozzles of an inkjet printhead in a printing mechanism has a two-layer structure, with an outer skin layer (215) of an elastomer, and a second foam core layer (220) inside the skin. The skin defines a sealing lip that surrounds the nozzles when the cap (200) is in a sealing position to avoid unnecessary drying of the ink. The skin has an interior surface (216) that defines a cavity under the sealing lip. The foam core (220), located within the cavity, may be formed by expanding a foam preform or by injecting raw foam into the cavity. An insert (260) may be molded into the cap structure (200) for use in mounting the cap in the printing mechanism. An optional backing layer molded to the structure is used to attach a vent basin to the cap. A method of constructing this cap, and a printing mechanism having this cap, are also described.

Abstract translation: 在打印机构中的喷墨打印头的喷墨喷嘴密封的泡沫填充盖（200）具有双层结构，弹性体的外表皮层（215）和第二泡沫芯层（220）内部 皮。 当盖（200）处于密封位置时，皮肤限定围绕喷嘴的密封唇，以避免油墨的不必要的干燥。 皮肤具有限定密封唇下方的空腔的内表面（216）。 位于空腔内的泡沫芯（220）可以通过将泡沫预制件膨胀或通过将原始泡沫注入空腔来形成。 插入件（260）可以模制到盖结构（200）中，以用于将盖安装在打印机构中。 使用模制到该结构的任选的背衬层将排气孔附接到盖上。 还描述了构造该盖的方法和具有该盖的打印机构。

公开(公告)号：WO1998009315A1

公开(公告)日：1998-03-05

申请号：PCT/US1997012726

申请日：1997-07-21

Applicant: HEWLETT-PACKARD COMPANY ,  FISCHER, Steven, M. ,  NORDMAN, Robert ,  WERLICH, Mark, H.

Inventor： HEWLETT-PACKARD COMPANY ,  FISCHER, Steven, M. ,  NORDMAN, Robert ,  WERLICH, Mark, H.

IPC: H01J49/04

CPC classification number: H01J49/0431 ,  G01N30/7233 ,  G01N2030/027 ,  H01J49/0009

Abstract: An automated calibrant system is provided for use in a liquid separation/mass spectrometry (LS/MS) apparatus. The calibrant system is pneumatically pressurized to forcibly move a reference liquid from the calibrant system to an ion source. The ion source is in fluid communication with a switching valve and with a mass spectrometer. The switching valve communicates effluent from a liquid separation system to the source when the switching valve is in a first position, and communicates one or more reference liquids from the calibrant system to the source when the switching valve is in a second position. The switching valve, and liquid handling valves in the calibrant system, can be individually activated manually or by automated means to alternate between analytical and calibration modes of operation in the LS/MS apparatus. A method is also provided for calibrating a mass spectrometer in a LS/MS apparatus during processing of a liquid sample by the liquid separation system.

Abstract translation: 提供了一种用于液体分离/质谱（LS / MS）装置的自动校准系统。 校准系统被气动加压，以将参考液体从校准系统强制移动到离子源。 离子源与切换阀和质谱流体连通。 当切换阀处于第一位置时，切换阀将流体从液体分离系统传递到源，并且当切换阀处于第二位置时，将来自校准系统的一个或多个参考液体连通到源。 校准系统中的切换阀和液体处理阀可以单独激活，也可以通过自动化方式在LS / MS装置中在分析和校准操作模式之间交替。 还提供了一种用于在通过液体分离系统处理液体样品期间校准LS / MS装置中的质谱仪的方法。

公开(公告)号：WO1997034288A1

公开(公告)日：1997-09-18

申请号：PCT/US1997003225

申请日：1997-02-28

Applicant: HEWLETT-PACKARD COMPANY

Inventor： HEWLETT-PACKARD COMPANY ,  DIAS, J., Fleming ,  MELTON, Hewlett, E., Jr.

IPC: G10K11/24

CPC classification number: A61B8/12 ,  A61B8/445 ,  A61B8/4461 ,  A61B2017/22017 ,  G10K11/24

Abstract: A direct contact scanner (101) uses a fiber acoustic waveguide (107, 141) to convey ultrasound from an ultrasound transducer (117) to a direct contact area (122). The waveguide extends from a main body (105) of the scanner into an oblong nose (109), and terminates in a deflector (149). To minimize thickness of the nose, the waveguide and deflector are rotated about an ultrasound transmission axis (119) of the waveguide, enabling the scanner to be used in a variety of situations where quarters are cramped. A coupling fluid (111) conveys ultrasound between the deflector (149) and a radome (113), which directly contacts the object (103) to be scanned. Using the waveguide, an ultrasound transducer and supporting electronics (118) may be distanced from the direct contact area (122) and separated from the fluid (111), thereby insulating the fluid from possible electronic leakage currents and heat.

Abstract translation: 直接接触扫描仪（101）使用纤维声波导（107,141）将超声波从超声换能器（117）传送到直接接触区域（122）。 波导从扫描仪的主体（105）延伸成长方形的鼻子（109），并终止在偏转器（149）中。 为了最小化鼻子的厚度，波导和偏转器围绕波导的超声波传播轴线（119）旋转，使得扫描仪能够在季节狭窄的各种情况下使用。 耦合流体（111）在偏转器（149）和直接接触待扫描对象（103）的天线罩（113）之间传送超声波。 使用波导，超声换能器和支撑电子器件（118）可以与直接接触区域（122）分开并与流体（111）分离，从而将流体与可能的电子泄漏电流和热量隔离。

公开(公告)号：WO1997031490A2

公开(公告)日：1997-08-28

申请号：PCT/GB1996003054

申请日：1996-12-11

Applicant: HEWLETT-PACKARD COMPANY ,  LOW, Colin ,  SEABORNE, Andrew, Franklin

Inventor： HEWLETT-PACKARD COMPANY

IPC: H04Q03/00

CPC classification number: H04L29/12066 ,  H04L29/06027 ,  H04L29/12094 ,  H04L29/12132 ,  H04L29/1216 ,  H04L61/1511 ,  H04L61/1529 ,  H04L61/1552 ,  H04L61/157 ,  H04M3/42306 ,  H04M3/54 ,  H04M7/006 ,  H04M7/12 ,  H04Q3/0029 ,  H04Q3/0037 ,  H04Q3/0045 ,  H04Q2213/13093 ,  H04Q2213/13097 ,  H04Q2213/13103 ,  H04Q2213/13106 ,  H04Q2213/13175 ,  H04Q2213/13176 ,  H04Q2213/13196 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13345 ,  H04Q2213/13389 ,  H04Q2213/13517 ,  H04Q2213/13526 ,  H04Q2213/13527 ,  H04Q2213/13534 ,  H04Q2213/13546

Abstract: A method of accessing a target entity over a communications network employs a distributed database system similar to the DNS of the Internet; indeed the DNS may be used as the required distributed database. The distributed database stores records each associated with a corresponding domain name and holding communication date for use in accessing a target entity. Each of these domain names is related to a respective number string from which it can be derived by a process including parsing at least a substantial portion of the number string into at least a part of said domain name. Upon the input of a number string indicative of a target entity, the related domain name is formed by parsing the number (step 120) and the domain name is then used to retrieve the corresponding communication data from the DNS-type distributed database system (step 121). This data is then used in accessing the target entity. In one embodiment, the communications network is a telephone network and the target entity is a called party; in this case, the number string comprises a dialed number and the retrieved communication data is a URI indicative of the location on the Internet of a current telephone number for the target party, the URI once retrieved being used to access the current telephone number over the Internet (step 123) for use in setting up a call to the target party.

Abstract translation: 通过通信网络访问目标实体的方法采用类似于因特网的DNS的分布式数据库系统; 确实可以将DNS用作所需的分布式数据库。 分布式数据库存储每个与相应域名相关联的记录，并保存用于访问目标实体的通信日期。 这些域名中的每一个都与相应的号码串有关，通过一个过程可以从该号码串导出，包括将数字串的至少大部分解析为所述域名的至少一部分。 在输入指示目标实体的号码串时，通过解析号码形成相关的域名（步骤120），然后使用域名从DNS类型的分布式数据库系统检索对应的通信数据（步骤 121）。 然后将该数据用于访问目标实体。 在一个实施例中，通信网络是电话网络，目标实体是被叫方; 在这种情况下，号码串包括拨号号码，所检索的通信数据是表示因特网上针对目标方的当前电话号码的位置的URI，一旦检索到的URI被用于访问当前电话号码 互联网（步骤123），用于设置对目标方的呼叫。

公开(公告)号：WO1997028003A1

公开(公告)日：1997-08-07

申请号：PCT/US1997000957

申请日：1997-01-30

Applicant: HEWLETT-PACKARD COMPANY ,  RASMUSSEN, Steve, O. ,  GAST, Paul, D.

Inventor： HEWLETT-PACKARD COMPANY

IPC: B41J13/08

CPC classification number: B41J11/007 ,  B41J2/01 ,  B41J11/002 ,  B41J11/0085

Abstract: To maintain a uniform spacing between the print media, such as paper or fabric, and an inkjet printhead having a large print swath, for instance about 25 millimeters (one inch) wide, a new media support system is provided for inkjet printing mechanisms, such as printers or plotters. The support system employs an endless belt (62) driven from the belt interior surface by a roller drive system that uniformly supports the print media under the reciprocating printhead (54, 56). The belt may be lined with anti-cockle ribs or it may be foraminous, with a vacuum applied thereunder to pull the media onto the belt. An ink drying system is included for heating the belt and thus the media to avoid ink bleed. A method is also provided for supporting and transporting a large sheet of print media through a printzone of an inkjet printing mechanism having such a large swath inkjet head.

Abstract translation: 为了在诸如纸或织物的打印介质和具有大的打印幅宽的喷墨打印头之间保持均匀的间隔，例如大约25毫米（一英寸）宽，为喷墨打印机构提供了新的介质支撑系统，例如 作为打印机或绘图仪。 所述支撑系统采用通过辊驱动系统从带内表面驱动的环形带（62），所述辊驱动系统在往复打印头（54,56）下均匀地支撑所述打印介质。 皮带可以衬有防起皱肋骨，或者可以是多孔的，其上施加有真空以将介质拉到皮带上。 包括一个油墨干燥系统，用于加热带，从而加热介质以避免油墨渗出。 还提供了一种用于通过具有这种大幅面喷墨头的喷墨打印机构的打印区支持和传送大片打印介质的方法。

公开(公告)号：WO1997022212A1

公开(公告)日：1997-06-19

申请号：PCT/GB1996003055

申请日：1996-12-11

Applicant: HEWLETT-PACKARD COMPANY ,  LOW, Colin ,  SEABORNE, Andrew, Franklin ,  BOUTHORS, Nicolas

Inventor： HEWLETT-PACKARD COMPANY

IPC: H04Q03/00

CPC classification number: H04L29/12066 ,  H04L12/2856 ,  H04L29/06 ,  H04L29/12018 ,  H04L29/1216 ,  H04L29/12594 ,  H04L29/12896 ,  H04L61/10 ,  H04L61/1511 ,  H04L61/157 ,  H04L61/304 ,  H04L61/605 ,  H04L69/16 ,  H04M3/42 ,  H04M3/42161 ,  H04M3/42229 ,  H04M3/4228 ,  H04M3/428 ,  H04M3/48 ,  H04M3/4938 ,  H04M3/5191 ,  H04M3/523 ,  H04M3/533 ,  H04M3/54 ,  H04M7/003 ,  H04M7/006 ,  H04M7/12 ,  H04M7/121 ,  H04M7/126 ,  H04M7/128 ,  H04M2201/60 ,  H04M2203/1041 ,  H04Q3/0029 ,  H04Q2213/13097 ,  H04Q2213/13106 ,  H04Q2213/13109 ,  H04Q2213/13141 ,  H04Q2213/13175 ,  H04Q2213/13176 ,  H04Q2213/13204 ,  H04Q2213/13282 ,  H04Q2213/13332 ,  H04Q2213/13345 ,  H04Q2213/13349 ,  H04Q2213/13389 ,  H04Q2213/13405 ,  H04Q2213/13504 ,  H04Q2213/13526 ,  H04Q2213/13527 ,  H04Q2213/13528 ,  H04Q2213/13534 ,  Y10S379/90

Abstract: Service resource items (49) for use in call setup in a telephone system are held on servers (58) that are connected to a computer network which is logically distinct from the telephone system infrastructure; this computer network may, for example, make use of the Internet. Each service resource item (49) is locatable on the network at a corresponding URI and is associated with a particular telephone number. A mapping is provided between telephone numbers and the URIs of associated service resource items. When it is desired to access a service resource item (49) associated with a particular telephone number, this mapping is used to retrieve the corresponding URI (step 55) which is then used to access the desired service resource item (56, 57, 59).

Abstract translation: 用于电话系统中呼叫建立的服务资源项（49）被保存在连接到逻辑上不同于电话系统基础设施的计算机网络的服务器（58）上; 该计算机网络可以例如利用因特网。 每个服务资源项（49）可以在相应URI的网络上定位，并且与特定电话号码相关联。 在电话号码和相关联的服务资源项目的URI之间提供映射。 当希望访问与特定电话号码相关联的服务资源项（49）时，该映射用于检索对应的URI（步骤55），然后使用该URI访问期望的服务资源项（56,57,59 ）。

公开(公告)号：WO1997022209A1

公开(公告)日：1997-06-19

申请号：PCT/GB1996003048

申请日：1996-12-11

Applicant: HEWLETT-PACKARD COMPANY ,  LOW, Colin

Inventor： HEWLETT-PACKARD COMPANY

IPC: H04Q03/00

CPC classification number: H04L29/12066 ,  H04L29/06 ,  H04L29/12018 ,  H04L29/1216 ,  H04L29/12594 ,  H04L29/12896 ,  H04L61/10 ,  H04L61/1511 ,  H04L61/157 ,  H04L61/304 ,  H04L61/605 ,  H04L69/16 ,  H04M3/2281 ,  H04M3/42 ,  H04M3/42161 ,  H04M3/42229 ,  H04M3/4228 ,  H04M3/42297 ,  H04M3/428 ,  H04M3/48 ,  H04M3/5191 ,  H04M3/523 ,  H04M3/533 ,  H04M3/54 ,  H04M7/003 ,  H04M7/006 ,  H04M7/12 ,  H04M7/122 ,  H04M7/126 ,  H04M7/128 ,  H04M15/43 ,  H04M15/56 ,  H04M2201/60 ,  H04M2203/1041 ,  H04M2215/202 ,  H04M2215/22 ,  H04Q3/0029 ,  H04Q2213/13106 ,  H04Q2213/13109 ,  H04Q2213/13141 ,  H04Q2213/13175 ,  H04Q2213/13204 ,  H04Q2213/13282 ,  H04Q2213/13332 ,  H04Q2213/13345 ,  H04Q2213/13349 ,  H04Q2213/13389 ,  H04Q2213/13405 ,  H04Q2213/13504 ,  H04Q2213/13526 ,  H04Q2213/13527 ,  H04Q2213/13528 ,  H04Q2213/13534 ,  Y10S379/90

Abstract: Traditional IN (Intelligent Network) services in a PSTN use service logic and data that is accessible for use only by the PSTN, though provision may be made for users to change certain controlled parameters of the services. The present system has the service logic and data ("service resource items") placed on servers (51) accessible over the Internet (50). This permits service resource items to be accessed from the service control subsystem (42) of a PSTN on a worldwide basis using the highly-resilient infrastructure of the Internet (50). Furthermore, the updating of the service resource items can be made the responsibility of the party to whom the service resource item relates, such updating being readily effected by access direct to the server (51) holding the resource items.

Abstract translation: PSTN中的传统IN（智能网络）服务使用服务逻辑和仅可由PSTN使用的数据，尽管可以为用户提供更改服务的某些受控参数。 本系统具有放置在可通过因特网（50）访问的服务器（51）上的服务逻辑和数据（“服务资源项”）。 这允许使用因特网（50）的高度弹性的基础设施在世界范围内从PSTN的服务控制子系统（42）访问服务资源项目。 此外，可以使服务资源项目的更新成为与服务资源项目相关的一方的责任，这种更新容易通过直接访问保存资源项的服务器（51）的访问来实现。

公开(公告)号：WO1996015875A1

公开(公告)日：1996-05-30

申请号：PCT/US1995014854

申请日：1995-11-13

Applicant: HEWLETT-PACKARD COMPANY

Inventor： HEWLETT-PACKARD COMPANY ,  OLSON, Allan, G. ,  KELLY, Kieran, B. ,  CASEY, Shannon, D. ,  KENT, Blair, M.

IPC: B24B19/00

CPC classification number: B65H27/00 ,  B24B5/50 ,  B24B19/028 ,  B24B41/04 ,  B24D11/00 ,  B65H2404/133 ,  B65H2404/182

Abstract: A method and apparatus is achieved for creating or restoring a high friction surface to a drive roller (52). Abrasive pads (12) define a scrubbing surface for acting upon a media roller's surface (54-58). As the roller's surface is scrubbed, creping occurs which increases the surface's coefficient of friction between the roller and media sheet ("COF(rm)"). In one embodiment, the creping apparatus is formed by a pair of plates (16, 18) hinged along one edge (30) and open along an opposite edge (28). A spring (19) is positioned between the plates biasing the plates apart at the open end. One or more abrasive pads are attached to the outer surface of one plate (18). To create or restore a high friction surface, the apparatus (10) is positioned adjacent to the roller (52). By approximately defining the force applied between the roller (52) and abrasive pads (12) and by using an abrasive pad of known grit, initially surface contaminants, if any, are scrubbed from the roller surface (54-58).

Abstract translation: 实现了用于将高摩擦表面创建或恢复到驱动辊（52）的方法和装置。 研磨垫（12）限定用于作用在介质辊表面（54-58）上的擦洗表面。 当辊的表面被擦洗时，发生起皱，这增加了辊和介质片之间的表面摩擦系数（“COF（rm）”）。 在一个实施例中，起皱装置由沿着一个边缘（30）铰接并沿着相对边缘（28）敞开的一对板（16,18）形成。 弹簧（19）被定位在板之间，使板在开口端分开。 一个或多个研磨垫附接到一个板（18）的外表面。 为了创建或恢复高摩擦表面，装置（10）被定位成与辊（52）相邻。 通过大致限定施加在辊（52）和研磨垫（12）之间的力并且通过使用已知砂粒的研磨垫，最初的表面污染物（如果有的话）从辊表面（54-58）被擦洗。