Patent US3268886A successfully refreshed from Google Patents.
US3268886A
Expired / Lapsed
US
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Pulse duration modulation to digital converter
Assignee: Individual
•
Filing: 1963-05-10
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Granted: 1966-08-23
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Fred B Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:36
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
145 words
AN APPARATUS FOR THE CONCURRENT PROCESSING OF PULSE DURATION MODULATED SIGNALS FROM A PLURALITY OF SOURCES, COVERTING THE SIGNALS INTO DIGITAL FORM, AND MERGING SAID DIGITAL DATA INTO A STANDARD OUTPUT FORMAT, SAID APPARATUS COMPRISING MEANS FOR DERIVING A LEADING EDGE PULSE AND A TRAILING EDGE PULSE FROM EACH DATA PULSE, A PULSE WIDTH COUNTER SET TO AN INITIAL ZERO CONDITION BY SAID LEADING EDGE PULSE, STORAGE MEANS FOR THE STORAGE OF THE DIGITAL INFORMATION TRANSFERRED FROM SAID PULSE WIDTH COUNTER UPON APPLICATION OF SAID TRAILING EDGE PULSE WIDTH COUNTER IDENTIFICATION OF THE ADDRESS OF EACH PULSE, MEANS FOR THE COUNTING SAID ADDRESS OF EACH SIGNAL CHANNEL AND PULSE, MEANS RESPONSIVE TO SAID IDENTIFICATION MEANS TO PREVENT LOSS OF INPUT DATA AND MAINTAIN SYNCHRONIZATION WITH THE INPUT DATA, AND MEANS FOR MERGING SAID DIGITAL DATA WITH SAID CHANNEL ADDRESS INTO A STANDARD OUTPUT DIGITAL FORMAT.
References Cited (Backward Citations)
US2941196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |