US3270340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of echo grouping
Assignee: Individual
•
Filing: 1963-09-30
•
Granted: 1966-08-30
•
Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Calvin M Hammack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:53
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A MULTISTATIC SYSTEM FOR THE SIMULTANEOUS DETERMINATION OF THE POSITIONS OF A PLURALITY OF REFLECTING TARGETS LOCATED IN A GIVEN SURVEILLANCE SPACE, A METHOD OF ASSOCIATING THE VARIOUS ECHOES TO FORM PROPER GROUPS OF ECHOES, EACH GROUP CONTAINING ECHO SIGNALS RESULTANT ONLY FROM A SINGLE TARGET COMPRISING THE FOLLOWING STEPS; (1) IDENTIFYING THE ECHOES OF EACH TRANSMITTER AT EACH RECEIVER; (2) SEPARATING THE VARIOUS ECHO SIGNALS BY DIRECTIONAL MULTIPLE APERTURE MEANS; (3) GROUPS TOGETHER THOSE SIGNALS EVIDENCING THE SAME DIRECTIONAL CHARACTERISTICS.
Claim 2
Dependent Claim
82 words
IN A MULTISTATIC SYSTEM FOR THE SIMULTANEOUS DETERMINATION OF THE POSITIONS OF A PLURALITY OF REFLECTING TARGETS LOCATED IN A GIVEN SURVEILLANCE SPACE, A METHOD OF ASSOCIATING THE VARIOUS ECHOES TO FORM PROPER GROUPS OF ECHOES, EACH GROUP CONTAINING ECHO SIGNALS RESULTANT ONLY FROM A SINGLE TARGET COMPRISING THE FOLLOWING STEPS; (1) IDENTIFYING THE ECHOES OF EACH TRANSMITTER AT EACH RECEIVER; (2) SEPARATING THE VARIOUS ECHO SIGNALS BY DIRECTIONAL MULTIPLE APERTURE MEANS; (3) GROUPS TOGETHER THOSE SIGNALS EVIDENCING THE SAME DIRECTIONAL CHARACTERISTICS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |