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51. 发明申请

WO1995015551A1 RETRIEVING DATA RECORDED AT DIFFERENT BIT DENSITIES 审中-公开
标题翻译：检测不同位元数据记录的数据
公开(公告)号：WO1995015551A1
公开(公告)日：1995-06-08
申请号：PCT/GB1994002664
申请日：1994-12-05
申请人： HEWLETT-PACKARD LIMITED , HEWLETT-PACKARD COMPANY , HARDWICK, John, Patrick , WILLIAMS, Christopher, Huw
发明人： HEWLETT-PACKARD LIMITED , HEWLETT-PACKARD COMPANY
IPC分类号： G11B05/09
CPC分类号： G11B5/09 , G11B5/00878 , G11B5/00891 , G11B20/10009
摘要： A Digital Data Storage (DDS) data storage mechanism for reading DDS tapes containing data at either 61 kbpi or 122 kbpi has two circuits for recovering data from signals induced in a magnetic head by magnetic patterns on the tape. One circuit (90) incorporates a clipping amplifier (92), a phase-locked loop (PLL) (94), and a latch (96) to sample the two-level signal obtained at 61 kbpi, at times defined by clock pulses from the PLL. The second circuit (100) incorporates a PR-1 partial-response maximum-likelihood (PRML) detector (110) to decode the three-level signal obtained at 122 kbpi. The cosine frequency response characteristic of the PR-1 channel facilitates use of the same rotary head drum and magnetic head gap for reading tapes at either bit density.
摘要翻译：用于读取包含61kbpi或122kbpi数据的DDS磁带的数字数据存储（DDS）数据存储机制具有两个电路，用于通过磁带上的磁性图案从磁头中感应的信号中恢复数据。一个电路（90）包括限幅放大器（92），锁相环（PLL）（94）和锁存器（96），以对由61kbpi获得的两电平信号进行采样，时间由 PLL。第二电路（100）包含PR-1部分响应最大似然（PRML）检测器（110），以解码以122kbpi获得的三电平信号。 PR-1通道的余弦频率响应特性有助于使用相同的旋转磁头鼓和磁头间隙，以便以任一位密度读取磁带。

52. 发明申请

WO1995009688A1 SAMPLE PREPARATION SYSTEM AND METHOD 审中-公开
标题翻译：样品制备系统和方法
公开(公告)号：WO1995009688A1
公开(公告)日：1995-04-13
申请号：PCT/US1994010916
申请日：1994-10-04
申请人： HEWLETT-PACKARD COMPANY
发明人： HEWLETT-PACKARD COMPANY , TARANTINO, E., Rocco , WEINBERGER, Scot, R.
IPC分类号： B01D59/44
CPC分类号： G01N1/40 , G01N1/42 , G01N2001/4027 , Y10S435/97 , Y10S436/81 , Y10T436/10
摘要： The present invention is a sample preparation system (22) and method that can be used with all types of analyte materials, that produces homogeneously deposited crystals across a sample surface (20), and that lends itself to automation. In this system (22) and method, analyte crystallization is caused by lyophilization. A homogenous analyte/solvent mixture (48) is placed on a sample surface (20). The mixture is frozen, then the solvent is sublimated through the application ofa vacuum. A homogeneous distribution of analyte crystals across the sample surface (20) results. This method is useful in preparing a sample for analysis by laser desorption ionization mass spectrometry.
摘要翻译：本发明是一种样品制备系统（22）和方法，可用于所有类型的分析物质，其在样品表面（20）上产生均匀沉积的晶体，并且使其自动化。在该系统（22）和方法中，分析物结晶由冻干引起。将均匀的分析物/溶剂混合物（48）放置在样品表面（20）上。将混合物冷冻，然后通过真空应用使溶剂升华。分析物晶体穿过样品表面（20）的均匀分布结果。该方法在制备用于通过激光解吸电离质谱分析的样品中是有用的。

53. 发明申请

WO1995004353A1 MAGNETIC DISC DEVICE, AND METHOD FOR ASSEMBLING MAGNETIC HEAD SUPPORTING PART THEREIN 审中-公开
标题翻译：磁性盘装置及装配磁头支撑部件的方法
公开(公告)号：WO1995004353A1
公开(公告)日：1995-02-09
申请号：PCT/JP1994001251
申请日：1994-07-29
申请人： CITIZEN WATCH CO., LTD. , HEWLETT-PACKARD COMPANY , TADA, Kozo
发明人： CITIZEN WATCH CO., LTD. , HEWLETT-PACKARD COMPANY
IPC分类号： G11B21/02
CPC分类号： G11B5/4833 , G11B5/4813 , G11B21/08 , G11B33/121
摘要： On the outer periphery of a holder (121) having an elastic flange part (121a), a head arm member (107) for supporting a magnetic head (106) and a thin-plate circuit connecting plate (122) are fitted. Concurrently, the head arm members (107) are fastened to the holder (121) by the pressure exerted by the holder (121) in a radial direction, and the circuit connecting plate (122) is fastened to the holder (121) by the elastic force exerted by the flange part (121a) between the head arm member (107) and the flange part (121a). Thereby, while high alignment accuracy is maintained, the circuit connecting plate can be manufactured at a low cost without the requirement of any strict machining accuracy.
摘要翻译：在具有弹性凸缘部分（121a）的保持器（121）的外周上安装用于支撑磁头（106）的头臂部件（107）和薄板电路连接板（122）。同时，头臂构件（107）通过由保持器（121）沿径向施加的压力紧固到保持器（121），并且电路连接板（122）通过由凸缘部分（121a）施加在头部臂部件（107）和凸缘部分（121a）之间的弹性力。因此，在保持高对准精度的同时，可以以低成本制造电路连接板，而不需要任何严格的加工精度。

54. 发明申请

WO1992008306A1 MULTICAST SWITCH CIRCUITS 审中-公开
标题翻译：多媒体切换电路
公开(公告)号：WO1992008306A1
公开(公告)日：1992-05-14
申请号：PCT/GB1991001909
申请日：1991-10-31
申请人： HEWLETT-PACKARD COMPANY , WAINWRIGHT, Nicholas, John
发明人： HEWLETT-PACKARD COMPANY
IPC分类号： H04L12/56
CPC分类号： H04L49/508 , H04L12/18 , H04L49/10 , H04L49/201 , H04L49/203
摘要： A multicast switch fabric is described wherein blocking of desired signal paths is handled by storing a cell to be transmitted through the fabric at a buffer at an input port to the fabric and attempting to retransmit the cell through the fabric until the cell is successfully transmitted, or a maximum number of retries at transmission is reached. Each switch element in the fabric has a block register which stores information as to whether or not a request path including that element is blocked, the block signals being fed back to the input port to indicate whether or not cell transmission has been successful. A 2 x 2 switch element is described wherein header information from the cell is decoded in two subfields, one field determining the number of copies to be replicated in the switch and a second field determining if the cell is to be fully replicated at each subsequent stage of the fabric.

55. 发明申请

WO1988005556A2 CODED SEQUENCE TRAVELLING-WAVE OPTICAL MODULATOR 审中-公开
标题翻译：编码顺序波动光学调制器
公开(公告)号：WO1988005556A2
公开(公告)日：1988-07-28
申请号：PCT/US1988000161
申请日：1988-01-20
申请人： HEWLETT-PACKARD COMPANY
发明人： HEWLETT-PACKARD COMPANY , NAZARATHY, Moshe , DOLFI, David, W. , JUNGERMAN, Roger, L.
IPC分类号： G02F01/3
CPC分类号： G02F1/2255
摘要： A travelling wave modulator (11-116) in which the phase velocity of a first wave (Vo) is modulated by a second travelling wave (Va). Means (15-17) are provided to alter the polarity of the second wave in accordance with a pseuorandom code. Barker codes and Golay codes are particularly suitable for improving the bandwidth-to-voltage ratio of the modulator over a comparable conventional modulator.

56. 发明申请

WO1987003363A1 MULTITONE INK JET PRINTER AND METHOD OF OPERATION 审中-公开
标题翻译：多功能喷墨打印机和操作方法
公开(公告)号：WO1987003363A1
公开(公告)日：1987-06-04
申请号：PCT/US1986002529
申请日：1986-11-21
申请人： HEWLETT-PACKARD COMPANY
发明人： HEWLETT-PACKARD COMPANY , ALLEN, Ross, R.
IPC分类号： G01D15/16
CPC分类号： B41J2/1433 , B41J2/14016 , B41J2/2114 , B41J2/2125 , B41J2002/14387 , H04N1/034
摘要： Method and apparatus useful for eight-level halftone thermal ink jet printing by printing with droplets of ink with volumes weighted in a binary sequence. Three binary-weighted drop generators (50, 52, 54) which are fired in sequence are useful in an eight-level, three color printing process and additionally may be employed with a clear ink vehicle drop generator (60) in order to reduce optical density of single small dots in a given pixel area to thereby reduce grainyness. This method and apparatus are also adapted for three color number printing with a chosen number of rows and columns of binary-weighted drop generators, (84, 86, 88) including untoned vehicle if desired, in order to achieve color printing of pixels having desired color and optical density.
摘要翻译：用于通过用二进制序列加权的体积墨滴印刷的八级半色调热喷墨印刷的方法和装置。依次进行烧制的三个二进制加权液滴发生器（50,52,54）可用于八级三色打印处理，并且另外可以与透明油墨车辆液滴发生器（60）一起使用，以便减少光学给定像素区域中的单个小点的密度，从而降低颗粒度。该方法和装置还适用于具有所选数量的二进制加权液滴发生器（84,86,88）的行和列（如果需要的话）的三色数字打印，包括未加注入的车辆，以便实现具有期望的像素的彩色打印颜色和光密度。

57. 发明申请

WO1998041814A1 NON-CONTACT POSITION SENSOR 审中-公开
标题翻译：非接触位置传感器
公开(公告)号：WO1998041814A1
公开(公告)日：1998-09-24
申请号：PCT/US1997004227
申请日：1997-03-14
申请人： HEWLETT-PACKARD COMPANY , HERCHER, Michael
发明人： HEWLETT-PACKARD COMPANY
IPC分类号： G01B11/14
CPC分类号： G01D5/28
摘要： A device for measuring the displacement of a movable object includes a stationary light source (10) that produces an incident light beam. A target feature (17), attached to, or integral with, the object, reflects the incident light beam and forms a first image of the light source in close proximity of the target feature. An imaging lens (26) receives the reflected light beam and reforms the first image of the light source as a second image on the photodetector (20). The photodetector, spaced from the object, receives the reflected light beam and produces an electric signal having a characteristic which is proportional to a received location on the photodetector of the second image and which represents a position of the object. The target feature includes a curved surface that reflects the light beam such that a small, point-like or line-like first image of the light source is formed and reformed as a second image on the photodetector.
摘要翻译：用于测量可移动物体的位移的装置包括产生入射光束的固定光源（10）。与物体相连或与其成一体的目标特征（17）反映了入射光束，并形成了紧邻目标特征的光源的第一图像。成像透镜（26）接收反射光束并将光源的第一图像作为第二图像重新设置在光电检测器（20）上。与物体间隔开的光电检测器接收反射光束并产生具有与第二图像的光电检测器上的接收位置成比例的特征的电信号，该特征表示物体的位置。目标特征包括反射光束的弯曲表面，使得形成光源的小的点状或线状的第一图像并将其重新形成为光电检测器上的第二图像。

58. 发明申请

WO1998011698A1 METHODS AND APPARATUS FOR ENCODING AND DECODING DATA 审中-公开
标题翻译：编码和解码数据的方法和装置
公开(公告)号：WO1998011698A1
公开(公告)日：1998-03-19
申请号：PCT/GB1997002464
申请日：1997-09-10
申请人： HEWLETT-PACKARD COMPANY , JEDWAB, Jonathan , DAVIS, James, Andrew
发明人： HEWLETT-PACKARD COMPANY
IPC分类号： H04L27/26
CPC分类号： H04L27/2602 , H04L1/004 , H04L25/4908 , H04L27/2617
摘要： In a coded orthogonal frequency division multiplex (COFDM) system n-bit data words are encoded as 2 -symbol code words (binary, quaternary, octary, etc.). The code words are selected for desired low peak-to-mean envelope power ratio (PMEPR) characteristics of transmissions over a COFDM channel, from a set of cosets of a linear subcode of a code having a specified generator matrix. The code words thus identified by the procedure described can, even for values of m in excess of 3, simultaneously limit the PMEPR to 3 dB, provide specified error control characteristics, be implemented in a feasible manner using analytical circuit techniques (e.g. with combinatorial logic), and include sufficiently many different code words to enable data to be transferred at useful rates. Other selections of code words can be made, enabling a higher maximum PMEPR or a reduced error detection capability to be accepted in order to obtain a higher code rate.
摘要翻译：在编码正交频分复用（COFDM）系统中，n位数据字被编码为2×符号码字（二进制，四进制，八进制等）。根据具有指定生成矩阵的代码的线性子码的一组陪集，选择代码字用于通过COFDM信道的传输的期望的低峰值平均包络功率比（PMEPR）特性。这样通过所描述的程序识别的码字即使对于超过3的m值也可以将PMEPR同时限制在3dB，提供指定的误差控制特性，可以使用分析电路技术（例如组合逻辑），并且包括足够多的不同的代码字以使数据以有效的速率被传送。可以进行代码字的其他选择，使得能够接受更高的最大PMEPR或降低的错误检测能力以获得更高的代码率。

59. 发明申请

WO1998003910A1 ORDERED MESSAGE RECEPTION IN A DISTRIBUTED DATA PROCESSING SYSTEM 审中-公开
标题翻译：分布式数据处理系统中订购的消息接收
公开(公告)号：WO1998003910A1
公开(公告)日：1998-01-29
申请号：PCT/GB1997002006
申请日：1997-07-24
申请人： HEWLETT-PACKARD COMPANY , CARROLL, Jeremy, John , BORSHCHEV, Andrei Vladilenovich
发明人： HEWLETT-PACKARD COMPANY
IPC分类号： G06F09/46
CPC分类号： G06F9/542 , G06F9/546 , G06F2209/546
摘要： A complex computing system has a plurality of nodes interconnected by channels through which data messages are exchanged. The underlying principle is that after arrival at a node of a message, delivery of that message is delayed until after delivery and consequences of all more senior messages which affect the node. The messages are progressively timestamped at each node so that each time stamp contains generation by generation indicators of the origin of the associated message. The seniority of that message is uniquely determined thereby and total ordering of the messages can be achieved. When comparing timestamps for such ordering, comparison of respective generation indicators is necessary only until there is a distinction.
摘要翻译：复杂的计算系统具有通过数据信息交换的通道互连的多个节点。基本原则是，在到达消息的节点之后，该消息的传递被延迟到分发之后，并且影响节点的所有更多高级消息的后果。消息在每个节点处逐渐地被加时间戳，使得每个时间戳包含相关消息的来源的生成指示符。该消息的资格由此唯一确定，并且可以实现消息的总排序。当比较这种排序的时间戳时，相应的生成指示符的比较仅在有区别之前是必要的。

60. 发明申请

WO1997033390A1 MULTIMODE COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：多模通信系统
公开(公告)号：WO1997033390A1
公开(公告)日：1997-09-12
申请号：PCT/GB1997000647
申请日：1997-03-10
申请人： HEWLETT-PACKARD COMPANY , CUNNINGHAM, David, George , RADDATZ, Lutz , WHITE, Ian , NOWELL, Mark
发明人： HEWLETT-PACKARD COMPANY
IPC分类号： H04B10/13
CPC分类号： H04B10/2581 , G02B6/14
摘要： A method and apparatus for increasing the operational bandwidth of a multimode optical fibre communications system is provided. The method comprises launching optical radiation into the core of the multimode fibre away from the centre of the core so as to strongly excite mid order modes of the multimode fibre, but to only weakly excite low order and high order modes of the multimode fibre. The mid order modes excited are predominately within a small number of mode groups and thus have similar propagation constants. This leads to a reduction in modal dispersion and thus to a significant increase in bandwidth compared to an overfilled launch. The offset launch of the invention is tolerant both to the launch conditions and to any imperfections in the fibre refractive index profile. Modal noise performance is also enhanced. Embodiments of the invention employ a singlemode fibre, a multimode fibre or a lens to illuminate an end face of a multimode fibre with a small spot offset from the optical axis of the fibre.
摘要翻译：提供了一种用于增加多模光纤通信系统的操作带宽的方法和装置。该方法包括将光辐射从核心的中心向多模光纤的核心发射，以便强烈地激发多模光纤的中间阶模，但是只能弱激发多模光纤的低阶和高阶模。激发的中级模式主要在少数模式组内，因此具有相似的传播常数。这导致模式色散的降低，从而与过满的发射相比，带宽显着增加。本发明的偏移发射对于发射条件和光纤折射率分布中的任何缺陷是宽容的。模态噪声性能也得到提高。本发明的实施例采用单模光纤，多模光纤或透镜来照射具有偏离光纤的光轴的小光点的多模光纤的端面。

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