US3170153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Lockheed Martin Corp
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Filing: 1960-02-04
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Granted: 1965-02-16
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Expires: 1980-02-04
Abstract
No abstract record available.
Inventors
- 👤 Brooks William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:05
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
AN ANALOG TO DIGITAL CONVERSION SYSTEM COMPRISING IN COMBINATION: A FIRST MEANS TO WHICH THE ANALOG SIGNAL TO BE DIGITIZED IS FED, SAID FIRST MEANS FOR SUBTRACTING A FIXED MAGNITUDE SIGNAL FROM SAID ANALOG SIGNAL WHEN THE ANALOG SIGNAL IS GREATER THAN A PREDETERMINED MAGNITUDE AND FOR PASSING THE ANALOG SIGNAL WITHOUT SUBSTRACTION WHEN SAID ANALOG SIGNAL IS EQUAL AND LESS THAN SAID PREDETERMINED MAGNITUDE, A SECOND MEANS TO WHICH THE OUTPUT OF SAID FIRST MEANS IS FED, SAID SECOND MEANS ADAPTED TO MULTIPLY THE OUTPUT SIGNAL FROM SAID FIRST MEANS BY A PREDETERMINED MULTIPLYING FACTOR, A FIRST AND SECOND SIGNAL STORAGE MEANS EACH HAVING AN INPUT AND OUTPUT CONNECTION, A FIRST GATE MEANS CONNECTED BETWEEN THE OUTPUT OF SAID SECOND MEANS AND INPUT CONNECTION OF SAID FIRST STORAGE MEANS, A SECOND GATE MEANS CONNECTED BETWEEN THE OUTPUT OF SAID SECOND MEANS AND THE INPUT CONNECTION OF SAID SECOND STORAGE MEANS, A THIRD GATE MEANS CONNECTED BETWEEN SAID FIRST STORAGE MEANS AND THE INPUT OF SAID FIRST MEANS,
Claim 2
Dependent Claim
168 words
AN ANALOG TO DIGITAL CONVERSION SYSTEM COMPRISING IN COMBINATION: A FIRST MEANS TO WHICH THE ANALOG SIGNAL TO BE DIGITIZED IS FED, SAID FIRST MEANS FOR SUBTRACTING A FIXED MAGNITUDE SIGNAL FROM SAID ANALOG SIGNAL WHEN THE ANALOG SIGNAL IS GREATER THAN A PREDETERMINED MAGNITUDE AND FOR PASSING THE ANALOG SIGNAL WITHOUT SUBSTRACTION WHEN SAID ANALOG SIGNAL IS EQUAL AND LESS THAN SAID PREDETERMINED MAGNITUDE, A SECOND MEANS TO WHICH THE OUTPUT OF SAID FIRST MEANS IS FED, SAID SECOND MEANS ADAPTED TO MULTIPLY THE OUTPUT SIGNAL FROM SAID FIRST MEANS BY A PREDETERMINED MULTIPLYING FACTOR, A FIRST AND SECOND SIGNAL STORAGE MEANS EACH HAVING AN INPUT AND OUTPUT CONNECTION, A FIRST GATE MEANS CONNECTED BETWEEN THE OUTPUT OF SAID SECOND MEANS AND INPUT CONNECTION OF SAID FIRST STORAGE MEANS, A SECOND GATE MEANS CONNECTED BETWEEN THE OUTPUT OF SAID SECOND MEANS AND THE INPUT CONNECTION OF SAID SECOND STORAGE MEANS, A THIRD GATE MEANS CONNECTED BETWEEN SAID FIRST STORAGE MEANS AND THE INPUT OF SAID FIRST MEANS,
References Cited (Backward Citations)
US2969535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |