US3286101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample and hold circuit
Assignee: Massachusetts Institute of Technology
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Filing: 1963-10-16
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Granted: 1966-11-15
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Simon William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
H; H03; H03M; H03M1/00; G; G11; G11C; G11C27/00; G11C27/02; G11C27/024; H03M1/12; H03M1/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A SAMPLE AND HOLD CIRCUIT HAVING A SAMPLE WINDOW FROM .1 TO .5 MICROSECOND AND A HOLD TIME OF FROM 20 TO 100 MICROSECONDS COMPRISING: AN ANALOG VOLTAGE SIGNAL SOURCE ANALOG SIGNAL UTILIZING MEANS, ANALOG VOLTAGE HOLDING MEANS HAVING AN INPUT AND AN OUTPUT, FIRST SWITCH MEANS FOR CLAMPING THE OUTPUT TERMINAL OF SAID VOLTAGE HOLDING MEANS TO GROUND PERMITTING REGISTRATION OF AN ANALOG VOLTAGE SIGNAL FROM SAID ANALOG SIGNAL SOURCE ON SAID ANALOG VOLTAGE HOLDING MEANS FOR A PERIOD OF FROM 0.1 TO 0.5 MICROSECOND, SECOND SWITCH MEANS FOR CLAMPING THE INPUT TERMINAL OF SAID VOLTAGE HOLDING MEANS TO GROUND PERMITTING TRANSFER OF SAID ANALOG VOLTAGE SIGNAL FROM SAID VOLTAGE HOLDING MEANS TO SAID SIGNAL UTILIZING MEANS FOR A PERIOD OF FROM 20 TO 100 MICROSECONDS, SWITCH CONTROLLING MEANS CONTROLLING SAID FIRST AND SECOND SWITCHING MEANS, SAID CONTROLLING MEANS CAPABLE OD CONTROLLING SAID FIRST AND SECOND SWITCHING MEANS SIMULTANEOUSLY, AND SAID FIRST AND SECOND SWITCH MEANS BEING COORDINATED SUCH THAT WHEN SAID FIRST SWITCH IS CLOSED, SECOND SWITCH IS OPEN, AND WHEN SAID SECOND SWITCH IS CLOSED SAID FIRST SWITCH IS OPENED.
Claim 2
Dependent Claim
183 words
A SAMPLE AND HOLD CIRCUIT HAVING A SAMPLE WINDOW FROM .1 TO .5 MICROSECOND AND A HOLD TIME OF FROM 20 TO 100 MICROSECONDS COMPRISING: AN ANALOG VOLTAGE SIGNAL SOURCE ANALOG SIGNAL UTILIZING MEANS, ANALOG VOLTAGE HOLDING MEANS HAVING AN INPUT AND AN OUTPUT, FIRST SWITCH MEANS FOR CLAMPING THE OUTPUT TERMINAL OF SAID VOLTAGE HOLDING MEANS TO GROUND PERMITTING REGISTRATION OF AN ANALOG VOLTAGE SIGNAL FROM SAID ANALOG SIGNAL SOURCE ON SAID ANALOG VOLTAGE HOLDING MEANS FOR A PERIOD OF FROM 0.1 TO 0.5 MICROSECOND, SECOND SWITCH MEANS FOR CLAMPING THE INPUT TERMINAL OF SAID VOLTAGE HOLDING MEANS TO GROUND PERMITTING TRANSFER OF SAID ANALOG VOLTAGE SIGNAL FROM SAID VOLTAGE HOLDING MEANS TO SAID SIGNAL UTILIZING MEANS FOR A PERIOD OF FROM 20 TO 100 MICROSECONDS, SWITCH CONTROLLING MEANS CONTROLLING SAID FIRST AND SECOND SWITCHING MEANS, SAID CONTROLLING MEANS CAPABLE OD CONTROLLING SAID FIRST AND SECOND SWITCHING MEANS SIMULTANEOUSLY, AND SAID FIRST AND SECOND SWITCH MEANS BEING COORDINATED SUCH THAT WHEN SAID FIRST SWITCH IS CLOSED, SECOND SWITCH IS OPEN, AND WHEN SAID SECOND SWITCH IS CLOSED SAID FIRST SWITCH IS OPENED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |