Patent US2985339A successfully refreshed from Google Patents.
Patent US3393364A successfully refreshed from Google Patents.
US3393364A
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Statistical delta modulation system
Assignee: SIGNATRON Inc A CORP OF DE
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Filing: 1965-10-23
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Granted: 1968-07-16
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Terrence L Fine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:53
CPC Classifications
H; H03; H03M; H03M3/00; H03M3/02; H03M3/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A DELTA MODULATION SYSTEM ENCODER COMPRISING: (1) A STORE OF NM LEVEL VALUE SETS, EACH SET CONTAINING A PLURALITY OF LEVELS; (2) A COMPARATOR FOR INTERMITTENTLY COMPARING AN INPUT SIGNAL WITH A SET OF THE LEVELS SUPPLIED FROM THE STORE OF NM LEVEL VALUE SETS; (3) MEANS FOR EMITTING AN N-ARY SIGNAL WHOSE N-ARY VALUE IS DETERMINED BY THE COMPARISON MADE IN THE COMPARATOR; (4) A STORAGE DEVICE FOR STORING M OF THE LAST N-ARY SIGNALS EMMITED BY SAID MEANS; (5) AND A LEVEL SELECTOR CONTROLLED BY THE SEQUENCE OF N-ARY SIGNALS IN THE STORAGE DEVICE, THE LEVEL VALUE
Claim 2
Dependent Claim
99 words
A DELTA MODULATION SYSTEM ENCODER COMPRISING: (1) A STORE OF NM LEVEL VALUE SETS, EACH SET CONTAINING A PLURALITY OF LEVELS; (2) A COMPARATOR FOR INTERMITTENTLY COMPARING AN INPUT SIGNAL WITH A SET OF THE LEVELS SUPPLIED FROM THE STORE OF NM LEVEL VALUE SETS; (3) MEANS FOR EMITTING AN N-ARY SIGNAL WHOSE N-ARY VALUE IS DETERMINED BY THE COMPARISON MADE IN THE COMPARATOR; (4) A STORAGE DEVICE FOR STORING M OF THE LAST N-ARY SIGNALS EMMITED BY SAID MEANS; (5) AND A LEVEL SELECTOR CONTROLLED BY THE SEQUENCE OF N-ARY SIGNALS IN THE STORAGE DEVICE, THE LEVEL VALUE
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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |