Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8050140 | Storage system and method for seismic data acquisition units A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are teth... | 11/01/2011 |
| 8004933 | Single station wireless seismic data acquisition method and apparatus 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 par... | 08/23/2011 |
| 7986589 | Apparatus for seismic data acquisition A seismic exploration method and unit comprised of continuous recording, self-contained wireless seismometer units or pods. The self-contained unit may include a tilt meter, a compass and a mechanically gimbaled clock platform. Upon retrieval, seismic data recorded ... | 07/26/2011 |
| 7957222 | Acoustic communication and control for seismic sensors A method for wireless communication in a seismic sensor network is disclosed. The method comprises providing a first acoustic device having at least one seismic sensor with communication and control data to communicate over an acoustic energy wave on a first communi... | 06/07/2011 |
| 7898904 | Implementing a network infrastructure in a seismic acquisition system A method and apparatus implementing a network infrastructure in a seismic acquisition system are disclosed. The apparatus is a seismic acquisition system, comprising a plurality of seismic data sources (120) capable of generating data; at least one data colle... | 03/01/2011 |
| 7876644 | Polarizaton diversity for optical fiber applications At least two light beams with polarization diversity are generated that each carry a representation of the same information. Separate optic fibers carry each of the at least two beams through a region subject to vibration to a remote location where the information i... | 01/25/2011 |
| 7813221 | Sensor and recorder communication Implementations of various technologies for a method for establishing communication pathway redundancy within a seismic recording array. In one implementation, the method may include identifying each data acquisition cell deployed in a seismic field and determining ... | 10/12/2010 |
| 7813222 | Apparatus and method for compressing seismic data A seismic data acquisition method is provided that includes receiving seismic signals at a sensor; sampling the received seismic signals into a plurality of samples, each sample having a selected number of bits (“bit length”); arranging the samples in packets, w... | 10/12/2010 |
| 7668044 | Data offload and charging systems and methods Apparatus and methods are provided for simultaneously retrieving data from multiple data acquisition units and for recharging such data acquisition units. The data offload and charging unit comprises a frame that defines stations for holding the data acquisition uni... | 02/23/2010 |
| 7663973 | Seismic data acquisition system A seismic survey system having remote acquisition modules (RAMs) for acquiring seismic signals and communicating with a central recording system (CRU) via a network of cables, other RAMs, and line tap units (LTUs), arranged in a matrix of receiver lines and base lin... | 02/16/2010 |
| 7660203 | Systems and methods for seismic data acquisition employing asynchronous, decoupled data sampling and transmission Systems and methods for asynchronously acquiring seismic data are described, one system comprising one or more seismic sources, a plurality of sensor modules each comprising a seismic sensor, an A/D converter for generating digitized seismic data, a digital signal p... | 02/09/2010 |
| 7643375 | Apparatus and method for seismic data acquisition A seismic data acquisition system includes a connector housing and a mating electrical circuitry module. A single interface couples electrical circuitry housed in the electrical circuitry module to one or more signal data carriers that are consolidated at a single l... | 01/05/2010 |
| 7583560 | Synchronization of seismic data acquisition systems A network distributed seismic data acquisition system comprises seismic receivers connected to remote acquisition modules, receiver lines, line tap units, base lines, a central recording system and a seismic source event generation unit synchronized to a master cloc... | 09/01/2009 |
| 7535795 | Seismic data acquisition system and method for downhole use A method and system for conducting a seismic survey by lowering a string of intelligent clampable sensor pods with 3-C sensors into a borehole. The string of pods is serially interconnected by a cable having a conductor pair which provides both power and data connec... | 05/19/2009 |
| 7383151 | Segmented antenna system for offshore radio networks and method of using same The present invention provides a method and apparatus for a segmented antenna system. The method includes determining an orientation of a first antenna, the first antenna including a plurality of segments for transmitting and receiving signals, determining a directi... | 06/03/2008 |
| 7382690 | Method and apparatus for gathering seismic data In the present invention, a seismic receiver contains an onboard digitizer that samples and converts a signal from detected seismic energy into the digital domain. The receiver contains an analog to digital converter, a transmission circuitry, and a link to the seis... | 06/03/2008 |
| 7371012 | Optoelectronic module and plug arrangement A compact optoelectronic module that prevents undesirable heating by locating the electrical drive and/or receiving (control) circuit outside of the housing containing the optoelectronic transducer. The control circuit is mounted on a submount (PCB). The housing is ... | 05/13/2008 |
| 7366055 | Ocean bottom seismic sensing system Seismic sensor systems and sensor station topologies, as well as corresponding cable and sensor station components, manufacturing and deployment techniques are provided. For some embodiments, networks of optical ocean bottom seismic (OBS) stations are provided, in w... | 04/29/2008 |
| 7359845 | Method and system for predictive stratigraphy images Methods and systems are provided for displaying and forecasting the lithology and wellbore conditions to be encountered while conducting drill string operations in a wellbore. A method and system is described for predicting and modeling lithology while operating a d... | 04/15/2008 |
| 7348894 | Method and apparatus for using a data telemetry system over multi-conductor wirelines A data telemetry system for multi-conductor wirelines to enhance transmission of analog and digital signals with frequency content up to 100 kHz by assigning at least two conductors to a first terminal of a data transmittal means and to a first terminal of a data re... | 03/25/2008 |
| 7327845 | Transmission of encrypted messages between a transmitter and a receiver utilizing a one-time cryptographic pad An apparatus and method is disclosed for establishing a one-time cryptographic pad between a communicating pair, a communicating pair comprising a pair of transmitter-receivers, each of the pair having a plurality of cryptographic devices in common. The communicatin... | 02/05/2008 |
| 7310380 | Generic transmission parameter configuration A method of determining transmission parameters for a wireless transceiver is disclosed. According to the method, a state table is loaded into a transceiver. The state table includes a plurality of states, each of which has a set of transmission parameters associate... | 12/18/2007 |
| 7310287 | Method and apparatus for seismic data acquisition A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are teth... | 12/18/2007 |
| 7304241 | Swivel connector, cable, and assembly An assembly having a connector capable of rotating up to about +/−170 degrees; and a plurality of conductors, sized in the range of gauge 22 to gauge 26. ... | 12/04/2007 |
| 7301852 | Methods of generating directional low frequency acoustic signals and reflected signal detection enhancements for seismic while drilling applications The present invention provides a method and apparatus for using an acoustic logging tool conveyed in a borehole in an earth formation for determining a characteristic of the formation. The method comprises using a first acoustic source for generating an acoustic sig... | 11/27/2007 |
| 7298671 | Seismic-data acquisition methods and apparatus A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with the microprocessor and adapted to convert received electromagnetic s... | 11/20/2007 |
| 7293520 | Control system for positioning of a marine seismic streamers A method of controlling a streamer positioning device (18) configured to be attached to a marine seismic streamer (12) and towed by seismic survey vessel (10) and having a wing and a wing motor for changing the orientation of the wing. The metho... | 11/13/2007 |
| 7286442 | Method and apparatus for seismic data acquisition A marine seismic exploration method and system comprised of continuous recording, self-contained ocean bottom pods characterized by low profile casings. An external bumper is provided to promote ocean bottom coupling and prevent fishing net entrapment. Pods are teth... | 10/23/2007 |
| 7283060 | Control apparatus for automated downhole tools A method and apparatus for a computer controlled apparatus for use in wellbore completions. A touch-screen is provided that facilitates commands and information that is entered by an operator ordering movement of a downhole tool. In another embodiment, real-time inf... | 10/16/2007 |
| 7269095 | Synchronization of seismic data acquisition systems A network distributed seismic data acquisition system comprises seismic receivers connected to remote acquisition modules, receiver lines, line tap units, base lines, a central recording system and a seismic source event generation unit synchronized to a master cloc... | 09/11/2007 |
| 7267070 | Device for controlling steering of a towed underwater object A device for controlling steering of a towed underwater object, in particular a towed linear acoustic antenna. The device comprises a body having a longitudinal axis, the body being provided with a fastener for fastening it releasably to the towed object, and a plur... | 09/11/2007 |
| 7263030 | Seismic data acquisition system A seismic survey system having remote acquisition modules (RAMs) for acquiring seismic signals and communicating with a central recording system (CRU) via a network of cables, other RAMs, and line tap units (LTUs), arranged in a matrix of receiver lines and base lin... | 08/28/2007 |
| 7257489 | Quadrupole acoustic shear wave logging while drilling A tool generates signals indicative a shear wave slowness of the formation surrounding a borehole. The tool comprises a collar portion adapted for mounting in a drill string, a quadrupole sonic transmitter mounted to the collar portion, and a quadrupole sonic receiv... | 08/14/2007 |
| 7239579 | Seismic data acquisition system A seismic survey system having remote acquisition modules (RAMs) for acquiring seismic signals and communicating with a central recording system (CRU) via a network of cables, other RAMs, and line tap units (LTUs), arranged in a matrix of receiver lines and base lin... | 07/03/2007 |
| 7227129 | Flowshot technique A pulsed neutron source irradiates an earth formation. The irradiation produces N16 from O16 in a fluid in the borehole, and the gamma rays produced by the subsequent decay of N16 are detected by a plurality of spaced apart detectors... | 06/05/2007 |
| 7224838 | Method and apparatus for recovery of encoded data using central value The present invention provides a method for comprising data by determining a central value that is greater than the minimum value and less than the maximum value of the range of data. In one embodiment, the central value is chosen to be a value that substantially re... | 05/29/2007 |
| 7222579 | Control system for positioning of marine seismic streamers A method of controlling a streamer positioning device (18) configured to be attached to a marine seismic streamer (12) and towed by seismic survey vessel (10) and having a wing and a wing motor for changing the orientation of the wing. The metho... | 05/29/2007 |
| 7223962 | Digital optical signal transmission in a seismic sensor array The invention describes a sensor array with digital signals transmitted over an optical fiber for seismic exploration systems. The seismic system includes a transducer for providing digital optical data signals and an optical interrogator for collecting the digital ... | 05/29/2007 |
| 7218612 | Network synchronization A network arrangement uses a poll select control protocol and a loop back arrangement at each node for equalizing transmission delay from each node to a central station. Delays at each node can be adjusted to start timing in response to a broadcast signal indicating... | 05/15/2007 |
| 7209407 | Seismic data acquisition system A seismic survey system having remote acquisition modules (RAMs) for acquiring seismic signals and communicating with a central recording system (CRU) via a network of cables, other RAMs, and line tap units (LTUs), arranged in a matrix of receiver lines and base lin... | 04/24/2007 |
