US4475134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Predetermined starting point initiation system
Assignee: Mobil Oil AS
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Filing: 1982-01-08
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Granted: 1984-10-02
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Expires: 2002-01-08
Abstract
Abstract An electronic control circuit for use with a remotely operated tape recorder wherein a rewind command is issued and executed upon energization of a power source.
Inventors
- 👤 Edgar A. Bowden
- 👤 Robert V. Przybyl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:58
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/24; G11; G11B; G11B15/00; G11B15/02; G11B15/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A method for establishing an initial predetermined starting point on an unmanned multi-track seismic data recorder comprising the steps of: determining whenever the recorder is initially turned on; establishing a predetermined starting point on the recording tape of the tape recorder including a preselected track and a preselected tape end; rewinding the recording tape to said preselected tape end of said recording tape; transferring to said preselected track; and inhibiting any additional rewinding.
Claim 2
Independent Claim
73 words
A method for establishing an initial predetermined starting point on an unmanned multi-track seismic data recorder comprising the steps of: determining whenever the recorder is initially turned on; establishing a predetermined starting point on the recording tape of the tape recorder including a preselected track and a preselected tape end; rewinding the recording tape to said preselected tape end of said recording tape; transferring to said preselected track; and inhibiting any additional rewinding.
Claim 3
Dependent Claim
33 words
The method according to claim 1 wherein said rewinding step includes the step of: detecting said preselected tape end of said recording tape; and stopping said rewinding whenever said preselected end is detected.
Claim 4
Dependent Claim
96 words
An electronic control circuit for establishing an initial starting point for use with an unmanned multi-track recording unit that records seismic data comprising: first means for receiving an indication that power has been initiated; control means for determining the initial starting point on a recording tape; second means connected to said first means for producing a rewind command to said recorder to move said recording tape to said initial starting point; third means connected to said recorder and said second means for receiving an indication that said recorder has rewound; disable means for preventing additional rewinding.
Claim 5
Dependent Claim
96 words
An electronic control circuit for establishing an initial starting point for use with an unmanned multi-track recording unit that records seismic data comprising: first means for receiving an indication that power has been initiated; control means for determining the initial starting point on a recording tape; second means connected to said first means for producing a rewind command to said recorder to move said recording tape to said initial starting point; third means connected to said recorder and said second means for receiving an indication that said recorder has rewound; disable means for preventing additional rewinding.
Claim 6
Dependent Claim
110 words
An electronic control circuit to provide an initial starting point for use with a seismic data multi-track tape recorder comprising: detector means for detecting initial energization of the tape recorder; program means connected to said detector means for selecting a predetermined starting position including track number and tape end on the recording tape; drive means for moving said tape towards said tape end of said predetermined starting position; sensor means connected to said drive means for sensing said tape end of said predetermined position; transfer means for changing tape track to said track number of said predetermined starting position; and reset means for presventing return to said predetermined starting position.
Claim 7
Dependent Claim
110 words
An electronic control circuit to provide an initial starting point for use with a seismic data multi-track tape recorder comprising: detector means for detecting initial energization of the tape recorder; program means connected to said detector means for selecting a predetermined starting position including track number and tape end on the recording tape; drive means for moving said tape towards said tape end of said predetermined starting position; sensor means connected to said drive means for sensing said tape end of said predetermined position; transfer means for changing tape track to said track number of said predetermined starting position; and reset means for presventing return to said predetermined starting position.
References Cited (Backward Citations)
US4010917A
Cited
JPS5262406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |