US3221298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded signal seismic source
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1962-08-27
•
Granted: 1965-11-30
•
Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 Kay N Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:46
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A SYSTEM FOR GENERATING A DRIVE SIGNAL FOR A VIBRATOR FOR IMPRTING A SEISMIC INPUT CODE INTO THE EARTH WHICH COMPRISES THE FOLLOWING ELEMENTS: (A) FIRST GENERATING MEANS FOR GENERATING A SIGNAL WHICH IS DEFINED AS COS2 WOT; (B) A BISTABLE MULTIVIBRATOR MEANS HAVING TWO STABLE STATES WHICH CHANGES FROM ONE STATE TO THE NEXT AT EACH MINIMUM VALUE OF EACH SIGNAL GENERATED IN ELEMENT (A); (C) A CODE GENERAOR FOR GENERATING A BINARY CODE; (D) MEANS CONNECTING THE OUTPUT OF SAID BI-STABLE MULTIVIBRATOR MEANS TO SAID CODE GENERATOR, SAID MEANS INCLUDING A LIMITER AND DIFFERENTIATOR CIRCUIT AND A CLIPPER OF ONE POLARITY, EACH PULSE FROM EACH CLIPPER INITIATING A BINARY BIT IN SAID CODE GENERATOR; (E) FIRST MULTIPLIER MEANS FOR MULTIPLYING THE OUTPUT SIGNAL OF ELEMENT (A) TIMES THE OUTPUT SIGNAL OF ELEMENT (B); (F) SECOND MULTIPLIER MEANS TO MULTIPLY THE OUTPUT OF SAID CODE GENERATOR MEANS BY THE OUTPUT OF SAID FIRST MULTIPLIER MEANS.
Claim 2
Independent Claim
156 words
A SYSTEM FOR GENERATING A DRIVE SIGNAL FOR A VIBRATOR FOR IMPRTING A SEISMIC INPUT CODE INTO THE EARTH WHICH COMPRISES THE FOLLOWING ELEMENTS: (A) FIRST GENERATING MEANS FOR GENERATING A SIGNAL WHICH IS DEFINED AS COS2 WOT; (B) A BISTABLE MULTIVIBRATOR MEANS HAVING TWO STABLE STATES WHICH CHANGES FROM ONE STATE TO THE NEXT AT EACH MINIMUM VALUE OF EACH SIGNAL GENERATED IN ELEMENT (A); (C) A CODE GENERAOR FOR GENERATING A BINARY CODE; (D) MEANS CONNECTING THE OUTPUT OF SAID BI-STABLE MULTIVIBRATOR MEANS TO SAID CODE GENERATOR, SAID MEANS INCLUDING A LIMITER AND DIFFERENTIATOR CIRCUIT AND A CLIPPER OF ONE POLARITY, EACH PULSE FROM EACH CLIPPER INITIATING A BINARY BIT IN SAID CODE GENERATOR; (E) FIRST MULTIPLIER MEANS FOR MULTIPLYING THE OUTPUT SIGNAL OF ELEMENT (A) TIMES THE OUTPUT SIGNAL OF ELEMENT (B); (F) SECOND MULTIPLIER MEANS TO MULTIPLY THE OUTPUT OF SAID CODE GENERATOR MEANS BY THE OUTPUT OF SAID FIRST MULTIPLIER MEANS.
References Cited (Backward Citations)
US2968022A
Cited
US2958039A
Cited
US3099796A
Cited
US3020970A
Cited
US3063034A
Cited
US3108249A
Cited
US3046545A
Cited
US3117305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |