公开(公告)号：US06208586B1

公开(公告)日：2001-03-27

申请号：US09211727

申请日：1998-12-14

申请人： Louis H. Rorden ,  Ashok Patel ,  James V. Leggett, III ,  Frank Lindsay Gibbons ,  Steven C. Owens

发明人： Louis H. Rorden ,  Ashok Patel ,  James V. Leggett, III ,  Frank Lindsay Gibbons ,  Steven C. Owens

IPC分类号： G01V100

CPC分类号： E21B47/101 ,  E21B47/16 ,  E21B47/18 ,  E21B47/182 ,  E21B47/187 ,  G08C23/00 ,  G08C23/02 ,  G08C2201/51 ,  Y10S367/912

摘要： A transducer is described especially for use in providing acoustic transmission in a borehole. The transducer includes a multiple number of magnetic circuit gaps and electrical windings that have been found to provide the power necessary for acoustic operation in borehole while still meeting the stringent dimensional criteria necessitated by boreholes. Various embodiments conforming to the design are described. Moreover, the invention includes transition and reflector sections, as well as a directional coupler and resonator arrangement particularly adapted for borehole acoustic communication.

摘要翻译： 传感器被特别描述用于在井眼中提供声学传播。 传感器包括多个磁路间隙和电绕组，已经发现它们提供了在钻孔中声学操作所需的功率，同时仍然满足钻孔所需的严格尺寸标准。 描述符合设计的各种实施例。 此外，本发明包括转换和反射器部分，以及特别适用于井眼声通信的定向耦合器和谐振器装置。

公开(公告)号：US5850369A

公开(公告)日：1998-12-15

申请号：US779300

申请日：1997-01-06

申请人： Louis H. Rorden ,  Ashok Patel ,  James V. Leggett, III ,  Frank Lindsay Gibbons ,  Steven C. Owens

发明人： Louis H. Rorden ,  Ashok Patel ,  James V. Leggett, III ,  Frank Lindsay Gibbons ,  Steven C. Owens

IPC分类号： E21B47/10 ,  E21B47/14 ,  E21B47/16 ,  E21B47/18 ,  G01V3/34 ,  G08C23/00 ,  G08C23/02 ,  G01V1/40

CPC分类号： E21B47/101 ,  E21B47/16 ,  E21B47/18 ,  E21B47/182 ,  E21B47/187 ,  G08C23/00 ,  G08C23/02 ,  G08C2201/51 ,  Y10S367/912

摘要： A transducer is described especially for use in providing acoustic transmission in a borehole. The transducer includes a multiple number of magnetic circuit gaps and electrical windings that have been found to provide the power necessary for acoustic operation in a borehole while still meeting the stringent dimensional criteria necessitated by boreholes. Various embodiments conforming to the design are described. Moreover, the invention includes transition and reflector sections, as well as a directional coupler and resonator arrangement particularly adapted for borehole acoustic communication. An acoustic communication system is described especially designed for use in providing acoustic transmission of information in a borehole. The communication system comprises a surface transceiver and at least one downhole transceiver. The surface transceiver operates in conjunction with a host computer that sends commands to the downhole transceiver. Subsequently, the downhole transceiver transmits encoded data from subsurface, borehole sensors to the surface transceiver. The preferred embodiment uses Minimum Shift Keying (MSK) modulation for both transmitting commands to the downhole unit and for transmitting data to the surface transceiver. To facilitate operation of a coherent communication system in the inhospitable environment of a borehole, the acoustic channel is characterized to enable the system to choose the best possible frequency and bandwidth for communication transmission. Additionally, the system achieves synchronous operation by transmitting synchronization signals between the downhole transceiver and the surface transceiver prior to the units exchanging commands and data.

摘要翻译： 传感器被特别描述用于在井眼中提供声学传播。 换能器包括多个磁路间隙和电绕组，已经发现它们提供了在钻孔中声学操作所必需的功率，同时仍然满足钻孔所需的严格尺寸标准。 描述符合设计的各种实施例。 此外，本发明包括转换和反射器部分，以及特别适用于井眼声通信的定向耦合器和谐振器装置。 描述了特别设计用于在井眼中提供信息的声传播的声学通信系统。 通信系统包括表面收发器和至少一个井下收发器。 地面收发机与向主机发送命令一起工作，向井下收发器发送命令。 随后，井下收发器将地下钻孔传感器的编码数据传输到地面收发器。 优选实施例使用最小移位键控（MSK）调制，用于向井下单元发送命令，并将数据发送到地面收发器。 为了方便在井眼不适宜的环境中的相干通信系统的操作，声通道的特征在于使系统能够选择用于通信传输的最佳可能的频率和带宽。 另外，在单元交换命令和数据之前，系统通过在井下收发器和地面收发器之间传输同步信号来实现同步操作。

公开(公告)号：US5592438A

公开(公告)日：1997-01-07

申请号：US108958

申请日：1993-08-18

申请人： Louis H. Rorden ,  Ashok Patel ,  James V. Leggett, III ,  Frank L. Gibbons ,  Steven C. Owens

发明人： Louis H. Rorden ,  Ashok Patel ,  James V. Leggett, III ,  Frank L. Gibbons ,  Steven C. Owens

IPC分类号： E21B47/10 ,  E21B47/14 ,  E21B47/16 ,  E21B47/18 ,  G01V3/34 ,  G08C23/00 ,  G08C23/02 ,  G01V1/40

CPC分类号： E21B47/101 ,  E21B47/16 ,  E21B47/18 ,  E21B47/182 ,  E21B47/187 ,  G08C23/00 ,  G08C23/02 ,  G08C2201/51 ,  Y10S367/912

摘要： A transducer is described especially for use in providing acoustic transmission in a borehole. The transducer includes a multiple number of magnetic circuit gaps and electrical windings that have been found to provide the power necessary for acoustic operation in a borehole while still meeting the stringent dimensional criteria necessitated by boreholes. Various embodiments conforming to the design are described. Moreover, the invention includes transition and reflector sections, as well as a directional coupler and resonator arrangement particularly adapted for borehole acoustic communication.An acoustic communication system is described especially designed for use in providing acoustic transmission of information in a borehole. The communication system comprises a surface transceiver and at least one downhole transceiver. The surface transceiver operates in conjunction with a host computer that sends commands to the downhole transceiver. Subsequently, the downhole transceiver transmits encoded data from subsurface, borehole sensors to the surface transceiver. The preferred embodiment uses Minimum Shift Keying (MSK) modulation for both transmitting commands to the downhole unit and for transmitting data to the surface transceiver. To facilitate operation of a coherent communication system in the inhospitable environment of a borehole, the acoustic channel is characterized to enable the system to choose the best possible frequency and bandwidth for communication transmission. Additionally, the system achieves synchronous operation by transmitting synchronization signals between the downhole transceiver and the surface transceiver prior to the units exchanging commands and data.

摘要翻译： 传感器被特别描述用于在井眼中提供声学传播。 换能器包括多个磁路间隙和电绕组，已经发现它们提供了在钻孔中声学操作所必需的功率，同时仍然满足钻孔所需的严格尺寸标准。 描述符合设计的各种实施例。 此外，本发明包括转换和反射器部分，以及特别适用于井眼声通信的定向耦合器和谐振器装置。 描述了特别设计用于在井眼中提供信息的声传播的声学通信系统。 通信系统包括表面收发器和至少一个井下收发器。 地面收发机与向主机发送命令一起工作，向井下收发器发送命令。 随后，井下收发器将地下钻孔传感器的编码数据传输到地面收发器。 优选实施例使用最小移位键控（MSK）调制，用于向井下单元发送命令，并将数据发送到地面收发器。 为了方便在井眼不适宜的环境中的相干通信系统的操作，声通道的特征在于使系统能够选择用于通信传输的最佳可能的频率和带宽。 另外，在单元交换命令和数据之前，系统通过在井下收发器和地面收发器之间传输同步信号来实现同步操作。

公开(公告)号：US07454220B2

公开(公告)日：2008-11-18

申请号：US11766893

申请日：2007-06-22

申请人： Hongjun Zhang ,  Ashok Patel

发明人： Hongjun Zhang ,  Ashok Patel

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W74/0841 ,  H04W72/0413 ,  H04W72/12 ,  H04W74/008 ,  H04W74/0833 ,  H04W74/0866 ,  Y02D70/1222 ,  Y02D70/1224

摘要： Apparatus (48), and an associated method, for facilitating operation of a mobile node (12) operable in a communication system (10) to request allocation of communication capacity upon which to communicate data pursuant to a communication service. A channel allocation request generator (52) is selectably operable to generate requests for allocation of channel capacity upon which to communicate the data. A selector (54) selects when to cause the generator (52) to communicate the additional data packets. Selection is made to delay, or otherwise prevent, retransmission of requests, when a determination is made that the retransmission is unlikely to be successful.

摘要翻译： 一种用于便于在通信系统（10）中操作的移动节点（12）的操作的装置（48）以及相关联的方法，以请求分配根据通信服务传送数据的通信容量。 信道分配请求生成器（52）可选地可操作地生成用于分配在其上传送数据的信道容量的请求。 选择器（54）选择何时使发生器（52）传送附加数据分组。 当确定重传不太可能成功时，进行选择以延迟或以其他方式阻止重传请求。

公开(公告)号：US07248887B2

公开(公告)日：2007-07-24

申请号：US10775609

申请日：2004-02-10

申请人： Hongjun Zhang ,  Ashok Patel

发明人： Hongjun Zhang ,  Ashok Patel

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W74/0841 ,  H04W72/0413 ,  H04W72/12 ,  H04W74/008 ,  H04W74/0833 ,  H04W74/0866 ,  Y02D70/1222 ,  Y02D70/1224

摘要： Apparatus (48), and an associated method, for facilitating operation of a mobile node (12) operable in a communication system (10) to request allocation of communication capacity upon which to communicate data pursuant to a communication service. A channel allocation request generator (52) is selectably operable to generate requests for allocation of channel capacity upon which to communicate the data. A selector (54) selects when to cause the generator (52) to communicate the additional data packets. Selection is made to delay, or otherwise prevent, retransmission of requests, when a determination is made that the retransmission is unlikely to be successful.

摘要翻译： 一种用于便于在通信系统（10）中操作的移动节点（12）的操作的装置（48）以及相关联的方法，以请求分配根据通信服务传送数据的通信容量。 信道分配请求生成器（52）可选地可操作地生成用于分配在其上传送数据的信道容量的请求。 选择器（54）选择何时使发生器（52）传送附加数据分组。 当确定重传不太可能成功时，进行选择以延迟或以其他方式阻止重传请求。

公开(公告)号：US20050036595A1

公开(公告)日：2005-02-17

申请号：US10946754

申请日：2004-09-22

申请人： Harjot Sidhu ,  Ashok Patel

发明人： Harjot Sidhu ,  Ashok Patel

IPC分类号： H04M11/00

CPC分类号： H04L25/0262

摘要： A method and system of matching a bit rate to a transmit bit rate used to transmit data on a data link are disclosed. A bit pattern in data received on the data link is detected using a bit rate. Where the detected bit pattern comprises one of a plurality of expected bit patterns, the bit rate is adjusted to an adjusted bit rate based on the detected bit pattern. In one embodiment, the adjusted bit rate is used for communications on the data link when a confirmation bit pattern is received within a predetermined time after the data is received.

摘要翻译： 公开了一种将比特率与用于在数据链路上发送数据的发送比特率相匹配的方法和系统。 使用比特率检测在数据链路上接收的数据中的位模式。 在检测到的位模式包括多个预期位模式之一的情况下，基于检测到的位模式将比特率调整到调整后的比特率。 在一个实施例中，当在接收到数据之后的预定时间内接收到确认位模式时，调整后的比特率被用于数据链路上的通信。

公开(公告)号：US20060251161A1

公开(公告)日：2006-11-09

申请号：US11455379

申请日：2006-06-19

申请人： Harjot Sidhu ,  Ashok Patel

发明人： Harjot Sidhu ,  Ashok Patel

IPC分类号： H04L5/16

CPC分类号： H04L25/0262

摘要： A method and system of matching a bit rate to a transmit bit rate used to transmit data on a data link are disclosed. A bit pattern in data received on the data link is detected using a bit rate. Where the detected bit pattern comprises one of a plurality of expected bit patterns, the bit rate is adjusted to an adjusted bit rate based on the detected bit pattern. In one embodiment, the adjusted bit rate is used for communications on the data link when a confirmation bit pattern is received within a predetermined time after the data is received.

摘要翻译： 公开了一种将比特率与用于在数据链路上发送数据的发送比特率相匹配的方法和系统。 使用比特率检测在数据链路上接收的数据中的位模式。 在检测到的位模式包括多个预期位模式之一的情况下，基于检测到的位模式将比特率调整到调整后的比特率。 在一个实施例中，当在接收到数据之后的预定时间内接收到确认位模式时，调整后的比特率被用于数据链路上的通信。

公开(公告)号：US20050054358A1

公开(公告)日：2005-03-10

申请号：US10775609

申请日：2004-02-10

申请人： Hongjun Zhang ,  Ashok Patel

发明人： Hongjun Zhang ,  Ashok Patel

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04W72/04 ,  H04W74/08 ,  H04B7/00

CPC分类号： H04W74/0841 ,  H04W72/0413 ,  H04W72/12 ,  H04W74/008 ,  H04W74/0833 ,  H04W74/0866 ,  Y02D70/1222 ,  Y02D70/1224

摘要： Apparatus (48), and an associated method, for facilitating operation of a mobile node (12) operable in a communication system (10) to request allocation of communication capacity upon which to communicate data pursuant to a communication service. A channel allocation request generator (52) is selectably operable to generate requests for allocation of channel capacity upon which to communicate the data. A selector (54) selects when to cause the generator (52) to communicate the additional data packets. Selection is made to delay, or otherwise prevent, retransmission of requests, when a determination is made that the retransmission is unlikely to be successful.

摘要翻译： 一种用于便于在通信系统（10）中操作的移动节点（12）的操作的装置（48）以及相关联的方法，以请求分配根据通信服务传送数据的通信容量。 信道分配请求生成器（52）可选地可操作地生成用于分配在其上传送数据的信道容量的请求。 选择器（54）选择何时使发生器（52）传送附加数据分组。 当确定重传不太可能成功时，进行选择以延迟或以其他方式阻止重传请求。

公开(公告)号：US06747865B2

公开(公告)日：2004-06-08

申请号：US10121177

申请日：2002-04-12

申请人： Cesare Capriz ,  Ashok Patel

发明人： Cesare Capriz ,  Ashok Patel

IPC分类号： H05K720

CPC分类号： H01L23/467 ,  H01L23/4334 ,  H01L2924/0002 ,  H01L2924/00

摘要： A heat sink for electronic components having a heat dissipator connected to at least one electronic component and a ventilator designed to supply the heat dissipator with air. The heat dissipator includes at least one thermally conductive plate connected to the electronic component and having a plurality of openings.

摘要翻译： 一种用于电子部件的散热器，具有连接至少一个电子部件的散热器和设计成向散热器供应空气的通风机。 散热器包括连接到电子部件并具有多个开口的至少一个导热板。

公开(公告)号：US5316179A

公开(公告)日：1994-05-31

申请号：US837897

申请日：1992-02-20

申请人： Antonis C. Ioannides ,  James S. Wilson ,  Ashok Patel

发明人： Antonis C. Ioannides ,  James S. Wilson ,  Ashok Patel

IPC分类号： B01J4/02 ,  B67D7/08 ,  F04F1/06 ,  G01F11/28 ,  G01N30/04 ,  G01N35/08 ,  B67D5/08

CPC分类号： G01F11/28 ,  F04F1/06

摘要： A system for delivering measured amounts of liquid, such as reagents used in chromatography. Liquid is first moved under gas pressure from a reservoir, such as a reagent bottle, through a valve into a narrow pipe. It reaches a detector which, detecting its presence, closes the valve thus trapping an amount of liquid between the valve and the detector, this amount of liquid then constituting a `unit` or `pulse` of liquid. The movement of the valve is used to connect a gas supply which drives the `unit` or `pulse` out of the pipe to an ultimate destination, such as a chromatographic column. A further `unit` or `pulse` can then be moved into the pipe and this repeated so that delivery to the destination is made in a series of such `units` or `pulse`. By timing the delivery of one `unit` or `pulse`, an amount less than one `unit` or `pulse` can be delivered by passing liquid into the pipe for less than the time taken to deliver one `unit`. This can be used to make up a delivery which is not a unitary multiple of one `unit` or to deliver a small amount of less than one `unit`. No moving parts are involved and delivery of accurately measured amounts is achieved.

摘要翻译： 用于输送测量量的液体的系统，例如色谱中使用的试剂。 液体首先在气体压力下从诸如试剂瓶的储存器通过阀移动到窄管中。 它到达检测器，检测其存在，关闭阀，从而在阀和检测器之间捕获一定量的液体，然后该量的液体构成液体的“单位”或“脉冲”。 阀的运动用于连接将“单元”或“脉冲”从管道驱动到最终目的地（如色谱柱）的气体源。 然后可以将另外的“单位”或“脉冲”移动到管道中，并重复进行，以便以一系列这样的“单位”或“脉冲”来传送到目的地。 通过定时输送一个“单位”或“脉冲”，通过将液体通入管道中可以传递少于一个“单位”或“脉冲”的量可以通过少于传送一个单元所需的时间来传送。 这可以用于组成一个“单位”的单位倍数的交付，或者提供少于一个“单位”的少量。 不涉及移动部件，实现准确测量量的传递。