US3290671A
Expired / Lapsed
US
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Assignee: International Business Machines Corp
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Filing: 1963-04-29
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Granted: 1966-12-06
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 William R Lamoureux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/06; H03M1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A DIGITAL TO ANALOG DECODER FOR CONVERTING A DIGITAL WORD TO A CORRESPONDING ANALOG SIGNAL ON A BYTE BASIS, EACH OF SAID BYTES CONSISTING OF A GROUP OF ADJACENT BITS IN SAID DIGITAL WORD, COMPRISING IN COMBINATION, A PLURALITY OF DECODING NETWORKS FOR DECODING ASSOCIATED ONE OF SAID BYTES AND GENERATING ANALOG SIGNALS INDICATIVE THEREOF IRRESPECTIVE OF THE RELATIVE SIGNIFICANCE OF SAID BYTES WITHIN SAID DIGITAL WORD, MEANS RESPONSIVE TO SAID ANALOG SIGNALS FROM SAID DECODING NETWORKS FOR WEIGHTING EACH OF SAID ANALOG SIGNALS IN ACCORDANCE WITH THE RELATIVE SIGNIFICANCE OF EACH OF SAID BYTES IN SAID DIGITAL WORD, AND MEANS RESPONSIVE TO SAID BYTE WEIGHTED ANALOG SIGNALS FOR PROVIDING SAID ANALOG REPRESENTATION OF SAID BINARY CODED DIGITAL WORD. .
Claim 2
Dependent Claim
120 words
A DIGITAL TO ANALOG DECODER FOR CONVERTING A DIGITAL WORD TO A CORRESPONDING ANALOG SIGNAL ON A BYTE BASIS, EACH OF SAID BYTES CONSISTING OF A GROUP OF ADJACENT BITS IN SAID DIGITAL WORD, COMPRISING IN COMBINATION, A PLURALITY OF DECODING NETWORKS FOR DECODING ASSOCIATED ONE OF SAID BYTES AND GENERATING ANALOG SIGNALS INDICATIVE THEREOF IRRESPECTIVE OF THE RELATIVE SIGNIFICANCE OF SAID BYTES WITHIN SAID DIGITAL WORD, MEANS RESPONSIVE TO SAID ANALOG SIGNALS FROM SAID DECODING NETWORKS FOR WEIGHTING EACH OF SAID ANALOG SIGNALS IN ACCORDANCE WITH THE RELATIVE SIGNIFICANCE OF EACH OF SAID BYTES IN SAID DIGITAL WORD, AND MEANS RESPONSIVE TO SAID BYTE WEIGHTED ANALOG SIGNALS FOR PROVIDING SAID ANALOG REPRESENTATION OF SAID BINARY CODED DIGITAL WORD. .
References Cited (Backward Citations)
US2731631A
Cited
US2946044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |