US3415950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video quantizing system
Assignee: International Business Machines Corp
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Filing: 1965-03-29
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Granted: 1968-12-10
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Maurice R Bartz
- 👤 Roger E Olson
- 👤 Norman S Stockdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:21
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/08; H03K5/082; G; G06; G06V; G06V30/00; G06V30/10; G06V30/16; G06V30/162; H04; H04N; H04N1/00; H04N1/40; H04N1/403
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A QUANTIZING SYSTEM, A MULTI-CLIPPING LEVEL DISCRIMINATOR CIRCUIT HAVING A PLURALITY OF INPUTS AND AN OUTPUT, A PEAK DETECTOR CIRCUIT HAVING AN INPUT AND AN OUTPUT, A TAPPED DELAY LINE HAVING AN INPUT AND AN OUTPUT, CIRCUIT MEANS FOR APPLYING A VIDEO SIGNAL TO ONE INPUT EACH OF THE DISCRIMINATOR CIRCUIT, THE PEAK DETECTOR CIRCUIT, AND THE TAPPED DELAY LINE,A ND SWITCH MEANS SELECTIVELY OPERABLE TO CONNECT THE OUTPUTS OF THE DELAY LINE AND THE PEAK DETECTOR TO ANOTHER INPUT OF THE DISCRIMINATOR CIRCUIT TO VARY THE CLIPPING LEVEL OF THE DISCRIMINATOR FROM ONE LEVEL TO ANOTHER.
Claim 2
Dependent Claim
98 words
IN A QUANTIZING SYSTEM, A MULTI-CLIPPING LEVEL DISCRIMINATOR CIRCUIT HAVING A PLURALITY OF INPUTS AND AN OUTPUT, A PEAK DETECTOR CIRCUIT HAVING AN INPUT AND AN OUTPUT, A TAPPED DELAY LINE HAVING AN INPUT AND AN OUTPUT, CIRCUIT MEANS FOR APPLYING A VIDEO SIGNAL TO ONE INPUT EACH OF THE DISCRIMINATOR CIRCUIT, THE PEAK DETECTOR CIRCUIT, AND THE TAPPED DELAY LINE,A ND SWITCH MEANS SELECTIVELY OPERABLE TO CONNECT THE OUTPUTS OF THE DELAY LINE AND THE PEAK DETECTOR TO ANOTHER INPUT OF THE DISCRIMINATOR CIRCUIT TO VARY THE CLIPPING LEVEL OF THE DISCRIMINATOR FROM ONE LEVEL TO ANOTHER.
References Cited (Backward Citations)
US2975371A
Cited
US3339178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |