US3333271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing and frequency measuring system
Assignee: US Philips Corp
•
Filing: 1965-09-16
•
Granted: 1967-07-25
•
Expires: 1985-09-16
Abstract
No abstract record available.
Inventors
- 👤 Robinson Stephen Joseph
- 👤 Levy Ralph
- 👤 Alcock Robert Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:52
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/02; G01S3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A SYSTEM FOR SIMULTANEOUSLY MEASURING THE BEARING OF A DISTANT TRANSMITTER AND THE FREQUENCY OF THE RADIOFREQUENCY ENERGY RADIATED BY THE TRANSMITTER, COMPRISING AN ANTENNA ARRANGEMENT IN THE FORM OF TWO LINEAR ANTENNA ARRAYS ARRANGED ORTHOGONALLY TO EACH OTHER, MEANS FOR MEASURING IN EACH ARRAY THE PHASE-DIFFERENCE ANGLE OF THE SIGNALS INDUCED IN TWO OF ITS ANTENNAS BY THE INCIDENT ENERGY, AND MEANS FOR DERIVING FROM THE OUTPUT OF SAID MEANS FOR MEASURING TWO SIGNALS CORRESPONDING TO MUTUALLY-PERPENDICULAR COORDINATES OF A VECTOR HAVING A MAGNITUDE PROPORTIONAL TO THE FREQUENCY OF THE INCIDENT ENERGY AND HAVING AN ARGUMENT REPRESENTING THE ANGLE OF INCIDENCE ON THE ANTENNA ARRANGEMENT OF SAID ENERGY.
Claim 2
Independent Claim
109 words
A SYSTEM FOR SIMULTANEOUSLY MEASURING THE BEARING OF A DISTANT TRANSMITTER AND THE FREQUENCY OF THE RADIOFREQUENCY ENERGY RADIATED BY THE TRANSMITTER, COMPRISING AN ANTENNA ARRANGEMENT IN THE FORM OF TWO LINEAR ANTENNA ARRAYS ARRANGED ORTHOGONALLY TO EACH OTHER, MEANS FOR MEASURING IN EACH ARRAY THE PHASE-DIFFERENCE ANGLE OF THE SIGNALS INDUCED IN TWO OF ITS ANTENNAS BY THE INCIDENT ENERGY, AND MEANS FOR DERIVING FROM THE OUTPUT OF SAID MEANS FOR MEASURING TWO SIGNALS CORRESPONDING TO MUTUALLY-PERPENDICULAR COORDINATES OF A VECTOR HAVING A MAGNITUDE PROPORTIONAL TO THE FREQUENCY OF THE INCIDENT ENERGY AND HAVING AN ARGUMENT REPRESENTING THE ANGLE OF INCIDENCE ON THE ANTENNA ARRANGEMENT OF SAID ENERGY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |