公开(公告)号：WO1997044700A1

公开(公告)日：1997-11-27

申请号：PCT/GB1997000967

申请日：1997-04-07

Applicant: HEWLETT-PACKARD COMPANY ,  PARK, Christopher, Anthony

Inventor： HEWLETT-PACKARD COMPANY

IPC: G02F01/09

CPC classification number: G02F1/093 ,  G02B6/4208 ,  Y10S372/703

Abstract: An optical isolator (1) comprises an isolator element (4) having an optical axis and comprising a Faraday rotator (6) and at least one polarisor (7a, 7b) and a magnet (2). The magnet (2) is an open-core magnet shaped so that when placed on a substantially planar surface an orifice (3) is defined by the magnet (2) and the substantially planar surface. The isolator element (4) is located within said orifice so that the said optical axis passes through said orifice. Such an isolator is well adapted for use in semiconductor laser modules.

Abstract translation: 光隔离器（1）包括具有光轴并且包括法拉第转子（6）和至少一个偏振器（7a，7b）和磁体（2）的隔离元件（4）。 磁体（2）是一种开芯磁体，其形状使得当放置在基本平坦的表面上时，孔（3）由磁体（2）和基本平坦的表面限定。 隔离元件（4）位于所述孔内，使得所述光轴通过所述孔口。 这种隔离器适用于半导体激光器模块。

公开(公告)号：WO1997032298A1

公开(公告)日：1997-09-04

申请号：PCT/US1997003199

申请日：1997-02-28

Applicant: HEWLETT-PACKARD COMPANY

Inventor： HEWLETT-PACKARD COMPANY ,  DIAS, J., Fleming

IPC: G10K11/24

CPC classification number: G10K11/24

Abstract: A system and method for coupling acoustic energy within a waveguide provides highly efficient and sensitive acoustic energy generation and detection. In particular, an ultrasound angioplasty system is described which makes use of an end-fire array of ring-shaped shear wave transducers to produce highly directionalized sound within an acoustic waveguide. The transducers can be made circularly symmetric, and may be composed of multiple segments for generating sound waves in independent x and y spatial modes within the acoustic waveguide. Each ring transducer is optimally spaced 1/2 lambda L from its neighbour transducers, such that alternate transducers transduce 180-degrees out of phase, and may have their electrical end inverted for common drive, or for summing of transducer electrical outputs when the array is used as a detector. The phased array may also be used in a resonant acoustic energy system used to detect pressure variations or reflections from a substance, for example, for detecting the progress of chemical reactions, liquid level sensing, etc., imaging, or in various other ultrasound applications.

Abstract translation: 用于耦合波导内的声能的系统和方法提供高效和灵敏的声能产生和检测。 特别地，描述了使用环形剪切波换能器的端射阵列在声波导内产生高度方向化的声音的超声波血管成形术系统。 换能器可以是圆形对称的，并且可以由用于在声波导内的独立的x和y空间模式中产生声波的多个段组成。 每个环形换能器与其相邻的换能器最佳地间隔1/2λL，使得替代的换能器转换180度相位，并且可以使它们的电端反转用于公共驱动，或者当阵列为 用作检测器。 相控阵列也可以用在用于检测物质的压力变化或反射的共振声能系统中，例如用于检测化学反应进程，液位感测等，成像或各种其他超声应用 。

公开(公告)号：WO1997029571A1

公开(公告)日：1997-08-14

申请号：PCT/GB1997000356

申请日：1997-02-07

Applicant: HEWLETT-PACKARD COMPANY ,  WATERS, John, Deryk

Inventor： HEWLETT-PACKARD COMPANY

IPC: H04L12/28

CPC classification number: H04B10/1149 ,  G07C13/00 ,  H04W72/02 ,  H04W72/042 ,  H04W84/10 ,  H04W84/12 ,  Y02D70/46

Abstract: In a computer network of a base station (10) and one or more (and usually many) remote units (40), data transmission from the base station (10) to the or each remote unit (40) is by way of a wireless (e.g. infrared) signal (60), and by way of a radio signal (62) in the other direction. Infrared receivers can be used in the remote units which are cheap and have low power consumption compared with radio receivers, and radio transmitters can be used in the remote units (40) which have low power consumption compared with infrared transmitters. This therefore facilitates the provision of cheap, battery-powered remote units (40). The wireless signal is used to send instructions to control selection by each remote unit of a transmission channel for its radio signals.

Abstract translation: 在基站（10）和一个或多个（通常多个）远程单元（40）的计算机网络中，从基站（10）到该或每个远程单元（40）的数据传输是通过无线 （例如红外）信号（60），并且通过在另一个方向上的无线电信号（62）。 与无线电接收机相比，红外线接收机可以用在便宜的并且具有低功耗的远程单元中，并且无线电发射机可以用于与红外发射机相比具有低功耗的远程单元（40）。 因此，便于提供便宜的电池供电的遥控单元（40）。 无线信号用于发送指令以控制每个远程单元对其无线电信号的传输信道的选择。

公开(公告)号：WO1997027542A1

公开(公告)日：1997-07-31

申请号：PCT/GB1997000228

申请日：1997-01-24

Applicant: HEWLETT-PACKARD COMPANY ,  FLEMING, Roger, Alan

Inventor： HEWLETT-PACKARD COMPANY

IPC: G06F11/14

CPC classification number: G06F11/2023 ,  G06F11/2038 ,  G06F11/2097

Abstract: A recovery unit in a software fault-tolerant system has primary and secondary processing units (I, II) running replicate application processes (24). Input messages sent to the recovery unit are received at the primary unit (I) and in due course processed by the primary process (24) to produce application messages; however, these application messages produced by the primary process (24) are not normally output from the recovery unit. The input messages received at the primary unit (I) are logged to the secondary unit (II) together with any non-deterministic choices made by the primary process during its processing. The secondary process (24) processes the input messages logged to the secondary unit (II) in the same order as the primary process (24) with any non-deterministic choices made by the primary process in its processing being used by the secondary process in place of the latter making its own non-deterministic choices during processing. The application messages produced by the secondary process (24) are used as the output messages of the recovery unit. Should the primary unit (I) fail, the secondary unit (II) takes over the role of the primary. Furthermore, in the absence of an operative secondary unit (II) (due either to its failure or to its promotion to the primary unit), the recovery-unit output messages are provided from the processing effected by the primary process. Configurations with multiple secondaries are also possible.

Abstract translation: 软件容错系统中的恢复单元具有运行复制应用程序（24）的主要和次要处理单元（I，II）。 发送到恢复单元的输入消息在主单元（I）处被接收并且在适当的时候被主进程（24）处理以产生应用消息; 然而，由主处理（24）产生的这些应用消息通常不从恢复单元输出。 在主单元（I）处接收到的输入消息与主处理在其处理期间进行的任何非确定性选择一起被记录到次级单元（II）。 次要过程（24）以与主过程（24）相同的顺序处理记录到次级单元（II）的输入消息，其中主处理在其处理中由第二进程使用的任何非确定性选择进行处理 后者在处理过程中作出自己的非确定性选择。 由二次处理（24）产生的应用消息用作恢复单元的输出消​​息。 如果主单元（I）失败，则次级单元（II）将接管主单元（I）的作用。 此外，由于没有一个可操作的二级单元（II）（由于它的失败或促进到主要单元），恢复单元的输出消​​息是由主要过程所执行的处理提供的。 具有多个辅助功能的配置也是可能的。

公开(公告)号：WO1997022211A1

公开(公告)日：1997-06-19

申请号：PCT/GB1996003051

申请日：1996-12-11

Applicant: HEWLETT-PACKARD COMPANY ,  LOW, Colin ,  PENKLER, David ,  BOUTHORS, Nicolas

Inventor： HEWLETT-PACKARD COMPANY

IPC: H04Q03/00

CPC classification number: H04L29/12066 ,  H04L29/06 ,  H04L29/12018 ,  H04L29/12113 ,  H04L29/1216 ,  H04L29/12594 ,  H04L29/12896 ,  H04L61/10 ,  H04L61/1511 ,  H04L61/1541 ,  H04L61/157 ,  H04L61/304 ,  H04L61/605 ,  H04L69/16 ,  H04M3/42 ,  H04M3/42161 ,  H04M3/42229 ,  H04M3/4228 ,  H04M3/428 ,  H04M3/48 ,  H04M3/5191 ,  H04M3/523 ,  H04M3/533 ,  H04M3/54 ,  H04M7/003 ,  H04M7/006 ,  H04M7/12 ,  H04M7/122 ,  H04M7/126 ,  H04M7/128 ,  H04M2201/60 ,  H04M2203/1041 ,  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

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 placed on a server (51) accessible over the Internet (50). This permits anyone to access useful telephone data such a time-of-day routing or diversion number information of a user. Thus a calling party (A) can determine before placing a call over the PSTN the best number to call by accessing the phone page (49) of the intended called party (B). This phone page (49) would remain accessible to the PSTN for service provision. In a preferred embodiment, the service logic and data is maintained by the user (B) independently of the PSTN on a server (51) of the user's choice; in this case, the PSTN would also access the user's service logic and data over the Internet (50).

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改变服务的某些受控参数。 本系统具有服务逻辑和数据放置在可通过因特网（50）访问的服务器（51）上。 这允许任何人访问有用的电话数据，例如用户的时间路由或转移号码信息。 因此，呼叫方（A）可以在通过访问预期被叫方（B）的电话页面（49）之前通过PSTN拨打呼叫的最佳号码来确定。 该电话页面（49）将保持对PSTN的访问以提供服务。 在优选实施例中，服务逻辑和数据由用户（B）独立于用户选择的服务器（51）上的PSTN来维护; 在这种情况下，PSTN还将通过因特网访问用户的服务逻辑和数据（50）。

公开(公告)号：WO1997022210A2

公开(公告)日：1997-06-19

申请号：PCT/GB1996003049

申请日：1996-12-11

Applicant: HEWLETT-PACKARD COMPANY ,  LOW, Colin ,  BOUTHORS, Nicolas

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: A third-party call setup gateway (90) is provided for setting up bearer channels (60) through a switched telecommunications system, such as a PSTN, by controlling an associated switch (41). The call setup gateway (90) has an interface onto a computer network, such as the Internet, that is accessible to users of the telecommunications system. In a preferred arrangement, a user A wishing to place a call to user B gets the details of B's current telephone number from a "phone page" (41) on B's website and then sends this telephone number together with A's own telephone number, to the gateway (90). The gateway (90) then commands the switch (41) to establish a call between A's telephone and B's telephone.

Abstract translation: 提供第三方呼叫建立网关（90），用于通过控制相关联的交换机（41）通过交换电信系统（例如PSTN）建立承载信道（60）。 呼叫建立网关（90）具有到电信系统的用户可访问的计算机网络（例如因特网）上的接口。 在优选的布置中，希望向用户B发出呼叫的用户A从B的网站上的“电话页”（41）获取B当前电话号码的细节，然后将该电话号码与A自己的电话号码一起发送到 网关（90）。 网关（90）然后命令交换机（41）建立A的电话和B的电话之间的呼叫。

公开(公告)号：WO1997016315A1

公开(公告)日：1997-05-09

申请号：PCT/US1996017548

申请日：1996-10-31

Applicant: HEWLETT-PACKARD COMPANY

Inventor： HEWLETT-PACKARD COMPANY ,  HAUCK, Mark ,  PAWLOWSKI, Norman, E., Jr.

IPC: B41J02/175

CPC classification number: B41J2/17556 ,  B41J2/175 ,  B41J2/17503 ,  B41J2/17513 ,  B41J2/17523 ,  B41J2/17553 ,  B41J2/17566 ,  B41J2/17596 ,  B41J2002/17516 ,  G01F23/003 ,  G01F23/72

Abstract: Apparatus for providing ink to an ink-jet print head in a print cartridge (14) at substantially constant pressure and for compensating for air within the print cartridge (14). A flexible bag (52) is maintained at atmospheric pressure within the print cartridge (14) and actuates a pressure regulator also within the print cartridge (14). By expanding and contracting, the flexible bag (52) compensates for changes in pressure and temperature that occur while the pressure regulator is shut and that affect air entrapped within the print cartridge (14).

Abstract translation: 用于以基本恒定的压力向打印墨盒（14）中的喷墨打印头提供墨并用于补偿打印墨盒（14）内的空气的装置。 柔性袋（52）保持在打印盒（14）内的大气压力下，并且也在打印盒（14）内也启动压力调节器。 通过膨胀和收缩，柔性袋（52）补偿压力调节器关闭期间发生的压力和温度的变化，并且影响打印盒（14）内的空气。

公开(公告)号：WO1995002283A1

公开(公告)日：1995-01-19

申请号：PCT/GB1994001478

申请日：1994-07-07

Applicant: HEWLETT-PACKARD COMPANY ,  JEDWAB, Jonathan ,  CROUCH, Simon, Edwin ,  CUNNINGHAM, David, George

Inventor： HEWLETT-PACKARD COMPANY

IPC: H03M13/00

CPC classification number: H04L25/4908 ,  H03M5/145 ,  H03M13/31 ,  H04L25/14

Abstract: A method of coding, and a coder, using a code in which data words are assigned to code word pairs in a selective manner, so that the value of a data word error resulting from inversion of a bit in a code word may be specific to and dependent solely upon the position within the code word of the inverted bit.

Abstract translation: 一种编码方法和编码器，其中使用代码，其中数据字被选择性地分配给码字对，使得由代码字中的位的反转产生的数据字错误的值可以是特定于 并且仅依赖于反转位的码字内的位置。

公开(公告)号：WO1992003971A1

公开(公告)日：1992-03-19

申请号：PCT/US1991006206

申请日：1991-08-29

Applicant: HEWLETT-PACKARD COMPANY

Inventor： HEWLETT-PACKARD COMPANY ,  DIAZ, J., Fleming

IPC: A61B08/06

CPC classification number: A61B8/06 ,  A61B5/1459 ,  A61B8/12 ,  A61B8/445 ,  A61B2017/22017 ,  G10K11/24

Abstract: One or more acoustic fiber guides (725-1) are used to carry certain modes of acoustic energy to the tip of a disposable catheter. Using these fibers, reflected sound (Doppler Sound) measurements are made in a blood environment (701) without the risk to the patient associated with the use of an electrical transducer at the distal end of the catheter. Due to the size reduction provided, the Doppler probe is suitable for monitoring the blood flow in the coronary arteries. By the addition of optical fibers (725-2) tipped with specific dyes and excited by optical energy of appropriate wavelength, the catheter tip system can also be utilized simultaneously as a combined (integral) optical blood gas and pH monitor using optical fluorescence and an acoustic Doppler velocity transducer.

公开(公告)号：WO1992002016A1

公开(公告)日：1992-02-06

申请号：PCT/GB1991001106

申请日：1991-07-05

Applicant: HEWLETT-PACKARD COMPANY ,  JONES, Kevin, Lloyd

Inventor： HEWLETT-PACKARD COMPANY

IPC: G11B20/10

CPC classification number: G06F3/0601 ,  G06F2003/0698 ,  G11B20/10

Abstract: A digital tape reading device comprises a read head; a tape motor mechanism and an electronic buffer which is filled as data is read from the tape and which is emptied by feeding the data to associated equipment. Tape control equipment is provided to stop the tape and reposition it with respect to the head according to the data level in the buffer. On receipt of a buffer full signal the control equipment allows the tape to run on while not being read and to commence reading the tail of a block of data when buffer space is available. Then the tape is repositioned so as to read the missing head of the block while skipping the already read tail.