US3345864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transient synthesis method and apparatus
Assignee: Lockheed Martin Corp
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Filing: 1964-07-14
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Granted: 1967-10-10
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Giles W Painter
- 👤 Hugh J Parry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:39
CPC Classifications
G; G01; G01M; G01M7/00; G01M7/02; G01M7/022
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
THE METHOD OF PRODUCING AN ELECTRICAL OSCILLATORY TRANSIENT HAVING A GIVEN SPECTRUM ENVELOPE, COMPRISING THE STEPS OF: GENERATING A PULSE WHICH IS SUFFICIENTLY SHORT TO HAVE A FOURIER SPECTRUM WHICH IS SUBSTANTIALLY FLAT OVER A GIVEN RANGE OF FREQUENCIES; APPLYING SAID PULSE SIMULTANEOUSLY TO A PLURALITY OF FILTERS, EACH OF WHICH HAS A SUCCESSIVELY WIDER BANDWIDTH TO CAUSE SAID FILTERS TO RING; COMBINING THE OUTPUTS OF SAID PLURALITY OF FILTERS TO PROVIDE A COMPLEX WAVEFORM; AND SEQUENTIALLY ADJUSTING THE AMPLITUDE OF THE OUTPUT OF EACH OF SAID FILTERS, BEGINNING WITH THE FILTER HAVING THE NARROWEST BANDWIDTH, TO MODIFY SAID COMPLEX WAVEFORM AND THEREBY PRODUCE SAID GIVEN SPECTRUM ENVELOPE.
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |