Communicating with an underground object

Details Communicating with an underground object Communicating with an underground object

2006-10-10

2006-10-10

Edwards, Jr., Timothy (Department: 2635)

Communications: electrical

Wellbore telemetering or control

Using a specific transmission medium

C175S073000, C324S326000, C340S854900

Reexamination Certificate

active

07119711

ABSTRACT:
A data sonde for use in horizontal drilling is provided, the data sonde comprising an antenna for emitting a first modulated signal from the data sonde, the first signal comprising zero and non-zero emission components in different periods, and a receiver for receiving an intermittent second data signal during first signal zero emission periods. A method of operation of the same is also provided.

REFERENCES:
patent: 5530357 (1996-06-01), Cosman et al.
patent: 6588116 (2003-07-01), Dallas et al.
patent: 6606032 (2003-08-01), Fling
patent: 2005/0104743 (2005-05-01), Ripolone et al.
patent: 2005/0274548 (2005-12-01), Albert et al.
patent: 2404393 (2005-02-01), None
Search Report dated Nov. 6, 2003.

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