US3173092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delta modulation system
Assignee: Automatic Electric Laboratories Inc
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Filing: 1961-11-15
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Granted: 1965-03-09
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Meschi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:45
CPC Classifications
H; H03; H03M; H03M3/00; H03M3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN COMBINATION FOR CONVERTING AN AMPLITUDE VARYING SIGNAL TO A PULSE SIGNAL, A SOURCE OF A FIRST AMPLITUDE VARYING SIGNAL, OUTPUT MEANS FOR FORMING AND TRANSMITTING A PULSE SIGNAL, PULSE DETECTING MEANS RESPONSIVE TO SAID PULSE SIGNAL, INTEGRATING MEANS RESPONSIVE TO SAID PULSE DETECTING MEANS FOR CONVERTING SAID PULSE SIGNAL TO A SECOND AMPLITUDE VARYING SIGNAL WHICH APPROXIMATES SAID FIRST AMPLITUDE VARYING SIGNAL, AND LOGIC MEANS FOR CONTROLLING SAID OUTPUT MEANS, SAID LOGIC MEANS COMPRISING COMPARISON MEANS CONNECTED TO SAID SOURCE AND TO SAID INTEGRATING MEANS FOR INDICATING A DIFFERENCE BETWEEN SAID FIRST AND SECOND AMPLITUDE VARYING SIGNALS, AND ERROR DETECTING MEANS ALSO CONNECTED TO SAID SOURCE AND TO SAID INTEGRATING MEANS FOR SENSING A DIFFERENCE IN AMPLITUDE BETWEEN SAID TWO AMPLITUDE VARYING SIGNALS WHICH IS GREATER THAN A PREDETERMINED VALUE.
Claim 2
Dependent Claim
131 words
IN COMBINATION FOR CONVERTING AN AMPLITUDE VARYING SIGNAL TO A PULSE SIGNAL, A SOURCE OF A FIRST AMPLITUDE VARYING SIGNAL, OUTPUT MEANS FOR FORMING AND TRANSMITTING A PULSE SIGNAL, PULSE DETECTING MEANS RESPONSIVE TO SAID PULSE SIGNAL, INTEGRATING MEANS RESPONSIVE TO SAID PULSE DETECTING MEANS FOR CONVERTING SAID PULSE SIGNAL TO A SECOND AMPLITUDE VARYING SIGNAL WHICH APPROXIMATES SAID FIRST AMPLITUDE VARYING SIGNAL, AND LOGIC MEANS FOR CONTROLLING SAID OUTPUT MEANS, SAID LOGIC MEANS COMPRISING COMPARISON MEANS CONNECTED TO SAID SOURCE AND TO SAID INTEGRATING MEANS FOR INDICATING A DIFFERENCE BETWEEN SAID FIRST AND SECOND AMPLITUDE VARYING SIGNALS, AND ERROR DETECTING MEANS ALSO CONNECTED TO SAID SOURCE AND TO SAID INTEGRATING MEANS FOR SENSING A DIFFERENCE IN AMPLITUDE BETWEEN SAID TWO AMPLITUDE VARYING SIGNALS WHICH IS GREATER THAN A PREDETERMINED VALUE.
References Cited (Backward Citations)
US2816267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |