US3588880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplexed digital to ac analog converter
Assignee: Singer General Precision Inc
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Filing: 1968-10-24
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Granted: 1971-06-28
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Expires: 1988-10-24
Abstract
Abstract A MULTIPLEXING DIGITAL TO ANALOG CONVERTER COMPRISING: INPUT GATE MEANS TO RECEIVE MORE THAN ONE DIGITAL SIGNAL, AN OUTPUT SECTION COUPLED TO THE INPUT GATE MEANS, A REFERENCE SIGNAL SOURCE COUPLED TO THE INPUT GATE MEANS, A REFERENCE EACH DIGITAL SIGNAL TO AC FORM AND CONNECTIONS TO FEED SAID CONVERTED SIGNAL TO THE OUTPUT SECTION, SAMPLING MEANS TO RAPIDLY SAMPLE THE CHANGING VALUES IN SAID OUTPUT SECTION FOR STORAGE, CAPACITOR STORAGE MEANS COUPLED TO THE OUTPUT SECTION FOR STORING SAID VALUES THEREON, AND, OUTPUT FILTER AND AMPLIFIER MEANS FED BY SAID CAPACITOR STORAGE MEANS TO PROVIDE SMOOTHLY CHANGING AC OUTPUTS CORRESPONDING TO EACH OF SAID DIGITAL SIGNALS.
Inventors
- 👤 Robert D Gross
- 👤 Marvin Masel
- 👤 Peter K Scholl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:30
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/66; H03M1/662; H03M1/665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |