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    METHOD OF MAKING AN ACOUSTIC TRANSDUCER
    81.
    发明申请
    METHOD OF MAKING AN ACOUSTIC TRANSDUCER 审中-公开
    制作声学传感器的方法

    公开(公告)号：WO1998025437A2

    公开(公告)日：1998-06-11

    申请号：PCT/US1997023159

    申请日：1997-12-04

    Applicant: INPUT/OUTPUT, INC.

    Inventor： INPUT/OUTPUT, INC. ,  CHANG, Win, H. ,  BADGER, Algernon, S. ,  SIMENSKY, Bernard

    IPC: H04R00/00

    CPC classification number: G01V1/186 ,  G10K9/122

    Abstract: A method of making an acoustic transducer includes the steps of: a) assembling a previously polarized piezoelectric crystal with a pair of solid circular metal plates positioned to sandwich the piezoelectric ceramic crystal between them, wherein an epoxy adhesive is interposed between the metal plates and the piezoelectric ceramic crystal to form an acoustic transducer assembly; b) curing the acoustic transducer assembly at temperatures less than 150 degrees centigrade; c) encapsulating the acoustic transducer assembly in a flexible case with a polyurethane potting sealant to form a potted assembly; and d) curing the potted assembly at temperatures less than 150 degrees centigrade to form a hydrophone.

    Abstract translation: 一种制造声换能器的方法包括以下步骤：a）将先前偏振的压电晶体与一对实心圆形金属板组装在一起，定位成将压电陶瓷晶体夹在它们之间，其中环氧粘合剂插在金属板和 压电陶瓷晶体形成声换能器组件; b）在低于150摄氏度的温度下固化声换能器组件; c）将所述声换能器组件用聚氨酯灌封密封剂封装在柔性壳体中以形成盆组件; 以及d）在低于150摄氏度的温度下固化盆栽组件以形成水听器。

    BANDWIDTH ENHANCING SEISMIC ACQUISITION SYSTEM AND METHOD
    82.
    发明申请
    BANDWIDTH ENHANCING SEISMIC ACQUISITION SYSTEM AND METHOD 审中-公开
    带宽增强地震采集系统及方法

    公开(公告)号：WO1989003536A1

    公开(公告)日：1989-04-20

    申请号：PCT/US1988003419

    申请日：1988-10-03

    Applicant: INPUT/OUTPUT, INC.

    Inventor： INPUT/OUTPUT, INC. ,  CARROLL, Paul, E. ,  JAMES, Roy, W., III ,  BOWEN, Charles, K. ,  SMITH, Gillan, C.

    IPC: G01V01/24

    CPC classification number: G01V1/364

    Abstract: An improved geophysical data acquisition system is disclosed for enhancing effective system bandwidth of a seismic signal having an amplitude frequency spectrum characterized by high amplitude low frequencies and low amplitude high frequencies. A low-cut filter (35) is provided which has a frequency response with its low frequency end attenuation limited. The low-cut filter (35) has the effect of increasing effective channel bandwith while simultaneously allowing low frequency signals from deep within the earth to be included in the output signal. Effective channel bandwidth is increased because low frequency seismic signals are attenuated, automatically allowing channel gain to be increased by a gain ranging amplifier. Increased channel gain automatically amplifies the low-amplitude high-frequency end of the spectrum resulting in increased effective bandwidth. A high frequency boost filter (30) is provided whereby the high frequency signal components of the seismic signals may be further relatively amplified thereby enhancing the channel effective bandwidth. The boost filter (30) is provided in the system's input stage in order to keep its effect on system input noise to a minimum.

    Abstract translation: 公开了一种改进的地球物理数据采集系统，用于增强具有以高振幅低频和低振幅高频为特征的振幅频谱的地震信号的有效系统带宽。 提供了一种低截止滤波器（35），其具有频率响应，其低频衰减受限制。 低截止滤波器（35）具有增加有效信道频带的效果，同时允许来自地球内深处的低频信号被包括在输出信号中。 由于低频地震信号被衰减，有效的信道带宽增加，可以通过增益测距放大器自动增加信道增益。 增加的通道增益自动放大频谱的低振幅高频端，从而增加有效带宽。 提供了一种高频提升滤波器（30），由此可以进一步相对放大地震信号的高频信号分量，从而增强信道有效带宽。 升压滤波器（30）被提供在系统的输入级中，以便将其对系统输入噪声的影响降至最低。

    NOISE SUPPRESSION DURING SEISMIC EXPLORATION
    83.
    发明申请
    NOISE SUPPRESSION DURING SEISMIC EXPLORATION 审中-公开
    地震探测期间的噪声抑制

    公开(公告)号：WO1987005404A1

    公开(公告)日：1987-09-11

    申请号：PCT/US1987000307

    申请日：1987-02-11

    Applicant: INPUT/OUTPUT, INC.

    Inventor： INPUT/OUTPUT, INC. ,  ABRAMS, Michael, Lee ,  RICE, Charles, Geofrrey ,  CARROLL, Paul, E. ,  JAMES, Roy, Wilson, III

    IPC: G01V01/36

    CPC classification number: G01V1/36 ,  G01V2210/32

    Abstract: The system for suppressing an ambient noise signal which contaminates a desired signal includes a noise pickup detector (21) for detecting the ambient noise signal. A noise discriminator (22) processes the detected noise signal into noise data. A reference noise generator (40) converts the noise data into a reference noise signal. The noise generator (40) automatically adjusts the reference noise signal to correspond with changes in the noise signal as it is being detected. A filter (24) filters the reference noise signal into an error signal which is adapted to remove the noise signal from the contaminated signal. A cross-correlator (42) cross-correlates the contaminated signal with the reference noise signal and adjusts the filter (24) to produce the required error signal.

    SINGLE STATION WIRELESS SEISMIC DATA ACQUISITION METHOD AND APPARATUS
    84.
    发明专利
    SINGLE STATION WIRELESS SEISMIC DATA ACQUISITION METHOD AND APPARATUS 未知

    公开(公告)号：CA2538952C

    公开(公告)日：2016-07-12

    申请号：CA2538952

    申请日：2004-09-17

    Applicant: INPUT/OUTPUT INC

    Inventor： ISELI JAMES W

    IPC: G01V1/22 ,  G01V20060101 ,  G01V1/16 ,  G01V1/24 ,  G01V13/00 ,  G06F3/00 ,  G06F9/00 ,  G06F17/00 ,  G06F17/30 ,  G06T11/20

    Abstract: A seismic data acquisition apparatus having a recorder co-located with a sensor unit in a seismic spread and a communication device for direct communication with a central recorder. A memory located in the recorder and/or in the central controller holds location parameters associated with the sensor unit, and the parameters can be updated. Method of seismic data acquisition including sensing seismic energy and recording the sensed energy at the sensor location. Delivering the recorded information to a central recorder by manually retrieving removable memory from each recorder, by wireless transmission of the information, or by removing the information from each recorder by inductive or cable connectors and a transfer device.

    MERGED-MASK MICRO-MACHINING PROCESS
    86.
    发明专利
    MERGED-MASK MICRO-MACHINING PROCESS 未知

    公开(公告)号：CA2378725C

    公开(公告)日：2012-09-04

    申请号：CA2378725

    申请日：2000-07-13

    Applicant: INPUT OUTPUT INC

    Inventor： YU LIANZHONG ,  RIED ROBERT P ,  GOLDBERG HOWARD D ,  YU DULI

    IPC: C23F1/00 ,  G02B26/10 ,  B81B3/00 ,  B81C1/00 ,  C23F1/02 ,  G01P9/04 ,  G01P15/135 ,  G02B26/00 ,  G02B26/08 ,  G03F7/20 ,  G03F7/26 ,  G06V30/224

    Abstract: The present invention provides merged-mask processes for fabricating micro-machined devices in general and mirrored assemblies for use in optical scanning devices in particular. The process includes (a) providing a substrate having a predetermined thickness; (b) applying a first masking layer on a first portion of the substrate and a second masking layer on a second portion of the substrate, said second masking layer being at least as thick as the first masking layer; (c) etching a portion of the second masking layer to provide a first exposed portion of the substrate; (d) etching the first exposed portion of the substrate to a first depth; (e) etching the second masking layer to provide a second exposed portion of the substrate; and (f) etching simultaneously the first exposed portion of the substrate to a second depth and the second exposed portion of the substrate to a first depth. The process further comprises patterning the first masking layer before applying the second masking layer to provide the second portion of the substrate for etching and etching the first masking layer to expose the second portion of the substrate. The first and second masking layers are applied prior to etching the substrate.

    TWO-CONDUCTOR BIDIRECTIONAL DIGITAL SEISMIC TELEMETRY INTERFACE
    87.
    发明专利
    TWO-CONDUCTOR BIDIRECTIONAL DIGITAL SEISMIC TELEMETRY INTERFACE 未知

    公开(公告)号：CA2397054C

    公开(公告)日：2009-10-13

    申请号：CA2397054

    申请日：2001-01-10

    Applicant: INPUT OUTPUT INC

    Inventor： BISHOP ALLEN J ,  BYERLY KENT A ,  KRUSE RALPH ,  DOWNEY JOHN C JR

    IPC: G01V1/22 ,  G08C15/00

    Abstract: A two-conductor bidirectional digital telemetry interface between a seismic sensor acquisition/conversion module (40) and a seismic data collection module (20). The data collection module i s configured as a master electronics device and the sensor acquisition/conversion module is configured as a slave electronics device in the telemetry system. The master device provides power to the slave device over the two conductors (36). The master device transmits portions of a digital seismic data packet to the master at a different second time in a fixed-duration frame. The frames are transmitted at regular intervals. The outbound commands and inbound data are encoded by block codes. A phase-locked loop (54) in the slave is locked to a master clock (35) m the master by deriving a clock and a sync point from the block-coded commands it receiv es from the master. The block code representing each command bit minimizes de drift and provides a level transition in the comman d that can be used to maintain synchronism between master and slave.

    89.
    发明专利
    未知

    公开(公告)号：NO20085232L

    公开(公告)日：2008-12-12

    申请号：NO20085232

    申请日：2008-12-12

    Applicant: INPUT OUTPUT INC

    Inventor： HAGEDOORN AREND L

    IPC: G01B7/14 ,  H04R9/00

    Abstract: A motion sensing transducer is disclosed that includes a case having an inner surface, a first cap that closes the case at a first end and a second cap that closes the case at a second end. The case inner surface, first cap and second cap define a space within the case. The apparatus further includes at least one inner plate member separating the space into at a first compartment and a second compartment within the case, a coil-magnet assembly that produces a signal when subjected to motion, the coil-magnet assembly disposed immediately within the case and in the first compartment, and an electronic circuit disposed within the second compartment that modifies the signal.

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