Invention Publication
- Patent Title: CLOCK DRIFT
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Application No.: US17769011Application Date: 2020-10-15
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Publication No.: US20230161373A1Publication Date: 2023-05-25
- Inventor: Alistair George CROSBY
- Applicant: BP Exploration Operating Company Limited
- Applicant Address: GB Middlesex
- Assignee: BP Exploration Operating Company Limited
- Current Assignee: BP Exploration Operating Company Limited
- Current Assignee Address: GB Middlesex
- Priority: GB 14919.4 2019.10.15
- International Application: PCT/GB2020/052597 2020.10.15
- Date entered country: 2022-04-14
- Main IPC: G06F1/14
- IPC: G06F1/14 ; G06F1/12

Abstract:
In some examples, the disclosure provides a method for determining a drift in clock data that is provided by a clock of a seismic sensor. The sensor is exposed to an ambient temperature that varies over time. The method includes obtaining temperature data associated with the ambient temperature as a function of time. The method also includes obtaining the clock data. The method also includes obtaining timestamp data provided by a global navigation satellite system. The method also includes determining drift data which minimizes a difference of a temporal drift in the clock data, based on the timestamp data and the temperature data. The method also includes outputting corrective data based on the determined drift data.
Public/Granted literature
- US11966252B2 Clock drift Public/Granted day:2024-04-23
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