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公开(公告)号：US4027281A
公开(公告)日：1977-05-31
申请号：US619424
申请日：1975-10-03
CPC分类号： H03G3/3026 , G01V1/247 , G01V1/48
摘要： The analog signals provided by a seismic-velocity well logger, resulting from the transmission of seismic impulses from a transmitter to a receiver in a logging sonde in a well by paths that include travel through the rock walls of the borehole, are digitally recorded. These seismic impulses and the resulting received seismic signals, or traces, are repeated approximately 20 times per second. The recording apparatus digitizes these analog traces by determining signal amplitudes at intervals of approximately 10 microseconds and temporarily stores the digital values. The apparatus includes a programmable-gain amplifier, an analog-to-digital converter, a computer, and a memory in which are, in addition to the data, also stored the values of gain which are to be used in digitizing the next signal. That is, on each digitizing interval a stored gain "program" is read out of the computer and sets the gain of the amplifier. Besides transferring the stored data to a standard computer input tape, a digital-to-analog converter and a scope are provided for displaying the successive values of gain and digitized signal, for monitoring the operation of the apparatus.
摘要翻译： 由地震速度测井仪提供的模拟信号是通过包括穿过钻孔岩壁的路径从井中测井仪中的发射器传输到接收器而产生的模拟信号，是数字记录的。 这些地震脉冲和由此产生的接收的地震信号或迹线每秒重复大约20次。 记录装置通过以大约10微秒的间隔确定信号幅度来数字化这些模拟迹线，并临时存储数字值。 该装置包括可编程增益放大器，模数转换器，计算机和存储器，其中除了数据之外，还存储了将用于数字化下一个信号的增益值。 也就是说，在每个数字化间隔上，从计算机读出存储的增益“程序”，并设置放大器的增益。 除了将存储的数据传送到标准计算机输入磁带之外，还提供了数模转换器和示波器，用于显示增益和数字化信号的连续值，用于监视装置的操作。
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公开(公告)号：US4594692A
公开(公告)日：1986-06-10
申请号：US508303
申请日：1983-06-27
申请人： Randol R. Read , John W. Supernaw
发明人： Randol R. Read , John W. Supernaw
CPC分类号： G01V13/00
摘要： A system for testing seismic signal recording equipment wherein a test signal is generated which simulates the output of at least one seismic sensing device, and, thereafter, the test signal is applied to the seismic signal recording equipment. The test signal is recorded by the seismic signal recording equipment and the recorded signal is compared with the generated test signal to evaluate the performance characteristics of the seismic signal recording equipment. The system can include circuitry to vary component elements of the test signal to test different performance characteristics of the seismic signal recording equipment, as well as ability to generate a random noise signal for addition to the test signal.
摘要翻译： 一种用于测试地震信号记录设备的系统，其中产生模拟至少一个地震检测设备的输出的测试信号，此后，测试信号被施加到地震信号记录设备。 测试信号由地震信号记录设备记录，记录信号与产生的测试信号进行比较，以评估地震信号记录设备的性能特征。 该系统可以包括用于改变测试信号的组成元件以测试地震信号记录设备的不同性能特征的电路，以及产生用于添加到测试信号的随机噪声信号的能力。
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公开(公告)号：US4032915A
公开(公告)日：1977-06-28
申请号：US598314
申请日：1975-07-23
申请人： John L. Shanks , Randol R. Read , John W. Supernaw
发明人： John L. Shanks , Randol R. Read , John W. Supernaw
CPC分类号： G11B20/1411
摘要： This disclosure describes a decoding system for decoding and formatting digital data recorded on magnetic tape in the STR ("speed-tolerant recording") format. The digital words are stored in cells of about equal width except that the leading cell of each word, called a "sync" cell, is of double width. Each cell starts with a positive pulse, and a cell detector provides a signal each time this occurs. The apparatus includes a data detector, which analyzes the width of this positive pulse relative to the cell width to determine whether the cell is a 1 bit or a 0 bit. Since the measurement is relative, cell length, i.e., total cell time, is not important. The bit determination is loaded into a shift register. Other apparatus determines the width of the cell, so that a sync cell detector can determine whether a sync cell is present or not. When a sync cell is detected, a pulse is generated which actuates the output buffer register to load the bits from the shift register. Data flows from buffer to a computer.
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公开(公告)号：US4740929A
公开(公告)日：1988-04-26
申请号：US771335
申请日：1985-08-30
申请人： Jerry W. Ehlers , Randol R. Read
发明人： Jerry W. Ehlers , Randol R. Read
CPC分类号： G01V1/364 , G01V2210/32
摘要： A method for recursively, continuously estimating the noise and signal components of a seismic trace. More particularly, a method for suppressing the noise component in seismic data so as to enhance the resolution of seismic events contained therein. The signal component of each seismic trace is determined recursively from the preceding estimate of the signal component in each preceding seismic trace.
摘要翻译： 一种用于递归地连续估计地震迹线的噪声和信号分量的方法。 更具体地，涉及一种用于抑制地震数据中的噪声分量的方法，以便增强其中所包含的地震事件的分辨率。 每个地震轨迹的信号分量由前面每个地震轨迹中的信号分量的先前估计递归地确定。
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公开(公告)号：US4782446A
公开(公告)日：1988-11-01
申请号：US056494
申请日：1987-05-29
申请人： Jerry W. Ehler , O. Guy Marney, Jr. , Randol R. Read , Daniel T. Johnson , Jerome D. McCoy, Jr.
发明人： Jerry W. Ehler , O. Guy Marney, Jr. , Randol R. Read , Daniel T. Johnson , Jerome D. McCoy, Jr.
CPC分类号： G01V1/04
摘要： A field quality control system and real-time method for evaluating the performance of swept frequency vibrators is provided. The system includes independent sensing means adapted to be mounted with the swept frequency vibrators for developing signals representative of reaction mass accelerations and baseplate accelerations, and means for monitoring the swept frequency vibrator's pilot signal. The system also includes a signal calculating means for determining vibrator operating characteristics from the pilot sweep signal, reaction mass acceleration signal, and baseplate acceleration signal and processing means for processing the vibrator operating characteristics to obtain analysis characteristics for evaluating and adjusting the performance of the swept frequency vibrator. In operation, the present invention provides a method for analysis characteristics to analyze and adjust the performance of swept frequency vibrators in real-time on location.
摘要翻译： 提供了一种用于评估扫频振动器性能的现场质量控制系统和实时方法。 该系统包括适于与扫频振动器一起安装的独立感测装置，用于显示表示反作用质量加速度和基板加速度的信号，以及用于监视扫频振动器导频信号的装置。 该系统还包括用于根据导频扫描信号，反作用质量加速度信号和基板加速度信号确定振动器操作特性的信号计算装置，以及用于处理振动器操作特性的处理装置，以获得用于评估和调整扫频的性能的分析特性 频率振动器。 在操作中，本发明提供了一种分析特性的方法，用于实时地分析和调整扫频振动器的性能。
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公开(公告)号：US4620279A
公开(公告)日：1986-10-28
申请号：US518518
申请日：1983-07-29
CPC分类号： G06F3/0601 , G06F13/122 , G06F13/28 , G06F2003/0694 , G06F2003/0697
摘要： A data transfer system is disclosed for a computer system which includes at least one processor, a memory coupled to the processor, and two direct memory access selector channels. A hardware interconnection is provided between the two selector channels such that they can be used to transfer data from one portion of the memory system to another directly, using direct memory access techniques, without intermediate mass storage. The disclosed software provides a transfer system which mimics the use of magnetic tapes in many respects in order to simplify use of the system.
摘要翻译： 公开了一种用于计算机系统的数据传输系统，其包括至少一个处理器，耦合到处理器的存储器和两个直接存储器存取选择器通道。 在两个选择器通道之间提供硬件互连，使得它们可以用于使用直接存储器存取技术将数据从存储器系统的一部分直接传输到另一个，而无需中间大容量存储。 所公开的软件提供了在许多方面模拟使用磁带的传送系统，以简化系统的使用。
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7.发明授权Cableless seismic digital field recorder having on-site seismic data processing capabilities 失效具有现场地震数据处理能力的无线地震数字现场录像机
公开(公告)号：US4885724A
公开(公告)日：1989-12-05
申请号：US212157
申请日：1988-06-23
摘要： An improved cableless seismic digital recording system is disclosed which records seismic-trace data generated by any type of seismic source, including high energy impulsive seismic sources, such as dynamite, and low energy surface seismic sources, such as vibrators and hammers. A seismometer, or geophone, is connected to a remotely deployed radio-controlled portable recorder which contains circuitry for sampling, digitizing, processing, storing, and recording seismic-trace data. Coded radio signals instruct each recorder to commence an operation or sequence of operations from a predetermined set of programmed instructions stored in program read only memory included in each recorder. Such operations include seismic-trace data acquisition; optional weighting and vertical stacking (summing); normalization; recording; and seismic source initiation.
摘要翻译： 公开了一种改进的无线地震数字记录系统，其记录由任何类型的地震源产生的地震迹线数据，包括诸如炸药的高能冲击地震源和诸如振动器和锤的低能量地震震源。 地震检波器或地震检波器连接到远程部署的无线电控制便携式记录器，其包含用于采样，数字化，处理，存储和记录地震迹线数据的电路。 编码无线电信号指示每个记录器从存储在每个记录器中包括的程序只读存储器中的预定的一组编程指令开始操作或操作序列。 这些操作包括地震跟踪数据采集; 可选加权和垂直堆叠（求和）; 正常化; 记录; 和震源启动。
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