公开(公告)号：US11352876B2

公开(公告)日：2022-06-07

申请号：US17322530

申请日：2021-05-17

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  Scott Phillips

IPC: E21B47/13 ,  E21B47/024 ,  E21B7/04 ,  E21B47/107 ,  E21B47/0228

Abstract: A transmitter for inground use controls a depth signal transmit power in relation to a data signal transmit power such that one reception range of the depth signal at least approximately matches another, different reception range of the data signal. A portable device can form a system with the transmitter in which the portable device scans a plurality of frequencies within at least one low frequency depth signal range to measure the electromagnetic noise at each one of the plurality of frequencies and identify at least one of the frequencies as a potential depth frequency for the transmitter. The portable device can include a dual mode filter having a rebar mode and a normal mode filter. The depth signal frequency is dynamically positionable in relation to low frequency noise.

公开(公告)号：US20190360328A1

公开(公告)日：2019-11-28

申请号：US16538038

申请日：2019-08-12

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  Scott Phillips

IPC: E21B47/12 ,  E21B7/04 ,  E21B47/024

Abstract: A transmitter for inground use controls a depth signal transmit power in relation to a data signal transmit power such that one reception range of the depth signal at least approximately matches another, different reception range of the data signal. A portable device can form a system with the transmitter in which the portable device scans a plurality of frequencies within at least one low frequency depth signal range to measure the electromagnetic noise at each one of the plurality of frequencies and identify at least one of the frequencies as a potential depth frequency for the transmitter. The portable device can include a dual mode filter having a rebar mode and a normal mode filter. The depth signal frequency is dynamically positionable in relation to low frequency noise.

公开(公告)号：US10378338B2

公开(公告)日：2019-08-13

申请号：US15635884

申请日：2017-06-28

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  Scott Phillips

IPC: E21B47/024 ,  E21B47/12 ,  E21B7/04 ,  E21B47/022 ,  E21B47/10

Abstract: A transmitter for inground use controls a depth signal transmit power in relation to a data signal transmit power such that one reception range of the depth signal at least approximately matches another, different reception range of the data signal. A portable device can form a system with the transmitter in which the portable device scans a plurality of frequencies within at least one low frequency depth signal range to measure the electromagnetic noise at each one of the plurality of frequencies and identify at least one of the frequencies as a potential depth frequency for the transmitter. The portable device can include a dual mode filter having a rebar mode and a normal mode filter. The depth signal frequency is dynamically positionable in relation to low frequency noise.

公开(公告)号：US20180010447A1

公开(公告)日：2018-01-11

申请号：US15676057

申请日：2017-08-14

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  John E. Mercer

IPC: E21B47/12

CPC classification number: E21B47/122 ,  E21B7/046 ,  G01S11/06

Abstract: A system includes a transmitter for use in conjunction with a horizontal directional drilling system that transmits a multi-bit symbol stream that characterizes sensor symbols for receipt by an aboveground portable device. The portable device receives the symbol stream for aboveground recovery of the sensor signals. The transmitter can precisely place the symbol frequencies at least to avoid a noise environment, as well as to avoid powerline harmonics, and can utilize wave shaping for transmitted symbols at least to provide for transmission power control, spectral content control and wideband antenna matching. The receiver can measure the noise environment to identify the symbol frequencies used by the transmitter. The noise can be scanned at an incremental resolution across a wide frequency bandwidth for display or automatic symbol frequency selection.

公开(公告)号：US11852012B2

公开(公告)日：2023-12-26

申请号：US18126001

申请日：2023-03-24

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  Scott Phillips

IPC: E21B47/13 ,  E21B47/024 ,  E21B47/0228 ,  E21B7/04 ,  E21B47/107

CPC classification number: E21B47/13 ,  E21B7/046 ,  E21B47/024 ,  E21B47/0228 ,  E21B47/107

Abstract: A transmitter for inground use controls a depth signal transmit power in relation to a data signal transmit power such that one reception range of the depth signal at least approximately matches another, different reception range of the data signal. A portable device can form a system with the transmitter in which the portable device scans a plurality of frequencies within at least one low frequency depth signal range to measure the electromagnetic noise at each one of the plurality of frequencies and identify at least one of the frequencies as a potential depth frequency for the transmitter. The portable device can include a dual mode filter having a rebar mode and a normal mode filter. The depth signal frequency is dynamically positionable in relation to low frequency noise.

公开(公告)号：US11821300B1

公开(公告)日：2023-11-21

申请号：US17665510

申请日：2022-02-05

Applicant: Merlin Technology, Inc.

Inventor： Scott Phillips ,  Timothy Bayliss ,  Thomas J. Hall

IPC: E21B45/00 ,  E21B47/13 ,  E21B41/00

CPC classification number: E21B45/00 ,  E21B47/13 ,  E21B41/00

Abstract: A sonde is receivable in a housing of an inground tool for transmitting an electromagnetic locating signal. The sonde is configured for monitoring a cumulative active run-time of its operation and for external transfer of the cumulative active run-time. A receiver receives the cumulative active run-time and provides at least one indication based on the cumulative active run-time.

公开(公告)号：US20230340869A1

公开(公告)日：2023-10-26

申请号：US18215127

申请日：2023-06-27

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Timothy Shaw ,  Timothy Bayliss ,  Craig Caswell

IPC: E21B47/024 ,  E21B7/04 ,  G01S19/49 ,  G01S19/13 ,  G01B3/12

CPC classification number: E21B47/024 ,  E21B7/046 ,  G01S19/49 ,  G01S19/13 ,  G01B3/12

Abstract: A planning tool plans movement of a boring tool for an underground drilling operation. The planning tool includes one or more wheels for rolling on a surface of the ground along a path responsive to movement by an operator to characterize the surface contour and to generate guidance for the boring tool to reach a target position. Planning can additionally be based on waypoints. The planning tool can be rolled unidirectionally or bidirectionally to characterize the surface contour. Bidirectional movement cancels accelerometer fixed bias. Path stitching is used to plan around obstacles. The planning tool can facilitate tracker placement. The planning tool can collect noise information for frequency selection purposes. A described technique maximizes linear drilling in an underground plan. Compensation and/or warnings are provided for unsteady, fast and slow movement of the planning tool while measuring the surface contour.

公开(公告)号：US11255186B1

公开(公告)日：2022-02-22

申请号：US16792779

申请日：2020-02-17

Applicant: Merlin Technology, Inc.

Inventor： Scott Phillips ,  Timothy Bayliss ,  Thomas J. Hall

IPC: E21B47/13 ,  E21B41/00 ,  E21B45/00

Abstract: A sonde is receivable in a housing of an inground tool for transmitting an electromagnetic locating signal. The sonde is configured for monitoring a cumulative active run-time of its operation and for external transfer of the cumulative active run-time. A receiver receives the cumulative active run-time and provides at least one indication based on the cumulative active run-time.

公开(公告)号：US20210270128A1

公开(公告)日：2021-09-02

申请号：US17322530

申请日：2021-05-17

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  Scott Phillips

IPC: E21B47/13 ,  E21B47/024 ,  E21B7/04

Abstract: A transmitter for inground use controls a depth signal transmit power in relation to a data signal transmit power such that one reception range of the depth signal at least approximately matches another, different reception range of the data signal. A portable device can form a system with the transmitter in which the portable device scans a plurality of frequencies within at least one low frequency depth signal range to measure the electromagnetic noise at each one of the plurality of frequencies and identify at least one of the frequencies as a potential depth frequency for the transmitter. The portable device can include a dual mode filter having a rebar mode and a normal mode filter. The depth signal frequency is dynamically positionable in relation to low frequency noise.

公开(公告)号：US20200173275A1

公开(公告)日：2020-06-04

申请号：US16782948

申请日：2020-02-05

Applicant: Merlin Technology, Inc.

Inventor： Rudolf Zeller ,  Gary Garrabrant ,  Timothy Bayliss ,  Scott Phillips

IPC: E21B47/12 ,  E21B47/024 ,  E21B7/04

Abstract: A transmitter for inground use controls a depth signal transmit power in relation to a data signal transmit power such that one reception range of the depth signal at least approximately matches another, different reception range of the data signal. A portable device can form a system with the transmitter in which the portable device scans a plurality of frequencies within at least one low frequency depth signal range to measure the electromagnetic noise at each one of the plurality of frequencies and identify at least one of the frequencies as a potential depth frequency for the transmitter. The portable device can include a dual mode filter having a rebar mode and a normal mode filter. The depth signal frequency is dynamically positionable in relation to low frequency noise.