Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 27, 2023
0Patent Application Number
176884560
Date Filed
March 7, 2022
0Patent Citations
...
Patent Primary Examiner
A system includes a surface device, preferably positioned on a surface, a downhole device, and a wireline communications system. A downlink communication between the surface device and the downhole device occurs via Hopped Frequency Shift Keying (HFSK) voltage-modulated signals. An optional uplink communication between the downhole device and the surface device may occur via Frequency Shift Keying (FSK) current-modulated signals. The downhole device may comprise an addressable switch.
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