Patent US3249690A successfully refreshed from Google Patents.
US3249690A
Expired / Lapsed
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Video quantizer producing binary output signals at inflection points of input signal
Assignee: Beckman Coulter Inc
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Filing: 1961-11-13
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Granted: 1966-05-03
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Schubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:47
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/403
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A METHOD FOR PROCESSING TIME VARIABLE VIDEO SIGNALS INDICATIVE OF CHANGES IN LIGHT INTENSITY COMPRISING THE STEPS OF SELECTING THE POINTS OF INFLECTION OF SAID VIDEO SIGNALS AS A FUNCTION OF TIME, AND
Claim 2
Independent Claim
33 words
A METHOD FOR PROCESSING TIME VARIABLE VIDEO SIGNALS INDICATIVE OF CHANGES IN LIGHT INTENSITY COMPRISING THE STEPS OF SELECTING THE POINTS OF INFLECTION OF SAID VIDEO SIGNALS AS A FUNCTION OF TIME, AND
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |