Method and apparatus for digitizing the maximum amplitude and time occurrence of an acoustic signal
CA 1251866 A · Owner: Mobil Oil Corporation · Inventors: Ballard, Billy G.; Dennis, Charles L.; Williams, Donald M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Digitizing and transmitting the maximum amplitude and time of occurrence of an analog signal is proposed for borehole televiewing apparatus to reduce the amount of data transmitted from a borehole tool to surface imaging equipment. During at least one established time window, the analog signal is amplitude sampled with an analog-to-digital converter 11. Each sample value is fed to a comparator 15 and compared with a previously stored maximum amplitude sample value and, if the present sample is greater than stored, it is stored as the new maximum amplitude sample value. Whenever a new maximum amplitude sample value is stored its time of, occurrence is also stored. At the end of each time …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 28, 2006.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.