STINGRAY GEOPHYSICAL LTD. Patent applications |
Patent application number | Title | Published |
20130162446 | OPTICAL SENSING SYSTEM WITH REDUNDANT INPUT AND OUTPUT TREES - An optical sensing system, comprising a plurality of optical sensors ( | 06-27-2013 |
20120274942 | SIGNAL PROCESSING - There is described a method and apparatus for processing light pulses returned from an optical sensor, wherein the light pulses are applied to two interferometer arrangements, a first interferometer arranged simply to superimpose two pulses and detect a first resulting value, and the other interferometer being arranged to apply a relative phase shift of about π/2 before super-imposing the two pulses to detect a second resulting value. The relative phase shift is applied by shifting the phase of one or both of the pulses. The first and second resulting values are divided to give a third value, representative of the sensor state. A seismic sensor array using such an apparatus to process returning pulses is also described. | 11-01-2012 |
20120134752 | DEPLOYING SENSOR ARRAYS - There is described an apparatus and method for deploying a sensor array comprising a plurality of sensors ( | 05-31-2012 |
20100182872 | SEISMIC CABLE STRUCTURE - There is described an optical seismic cable ( | 07-22-2010 |