Patent US2366274A successfully refreshed from Google Patents.
US3308433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching matrix
Assignee: RCA Corp
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Filing: 1963-01-10
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Granted: 1967-03-07
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Expires: 1983-01-10
Abstract
No abstract record available.
Inventors
- 👤 Rolf B Lochinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:22
CPC Classifications
H; H03; H03M; H03M7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A DECODER MATRIX, NXM OUTPUT LINES ARRANGED IN N FIRST GROUPS OF M LINES EACH, WHERE M IS AN INTEGER GREATER THAN 1 AND NOT GREATER THAN 10 AND N IS AN INTEGER GREATER THAN 1; N FIRST SWITCHING MEANS, ONE PER FIRST GROUP OF LINES, EACH SWITCHING MEANS, WHEN CLOSED, APPLYING A DRIVE CURRENT TO ALL LINES IN ITS GROUP; MXN UNIDIRECTIONALLY CONDUCTING ELEMENTS; AND M SECOND SWITCHING MEANS, EACH CONNECTED TO A DIFFERENT GROUP OF N LINES THROUGH N OF N OF SAID ELEMENTS, RESPECTIVELY, AND EACH LINE IN A GROUP OF N LINES BEING IN A DIFFERENT FIRST GROUP, EACH SECOND SWITCHING MEANS, WHEN CLOSED, PROVIDING A LOW IMPEDANCE PATH VIA THE UNIDIRECTIONALLY CONDUCTING ELEMENTS COUPLED THERETO FOR DRIVE CURRENT APPEARING ON LINES TO WHICH IT IS CONNECTED.
Claim 2
Dependent Claim
132 words
IN A DECODER MATRIX, NXM OUTPUT LINES ARRANGED IN N FIRST GROUPS OF M LINES EACH, WHERE M IS AN INTEGER GREATER THAN 1 AND NOT GREATER THAN 10 AND N IS AN INTEGER GREATER THAN 1; N FIRST SWITCHING MEANS, ONE PER FIRST GROUP OF LINES, EACH SWITCHING MEANS, WHEN CLOSED, APPLYING A DRIVE CURRENT TO ALL LINES IN ITS GROUP; MXN UNIDIRECTIONALLY CONDUCTING ELEMENTS; AND M SECOND SWITCHING MEANS, EACH CONNECTED TO A DIFFERENT GROUP OF N LINES THROUGH N OF N OF SAID ELEMENTS, RESPECTIVELY, AND EACH LINE IN A GROUP OF N LINES BEING IN A DIFFERENT FIRST GROUP, EACH SECOND SWITCHING MEANS, WHEN CLOSED, PROVIDING A LOW IMPEDANCE PATH VIA THE UNIDIRECTIONALLY CONDUCTING ELEMENTS COUPLED THERETO FOR DRIVE CURRENT APPEARING ON LINES TO WHICH IT IS CONNECTED.
References Cited (Backward Citations)
US2853693A
Cited
US2747023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |