Patent US3319080A successfully refreshed from Google Patents.
US3319080A
Expired / Lapsed
US
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Electro-optical digital system
Assignee: RCA Corp
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Filing: 1964-04-08
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Granted: 1967-05-09
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Expires: 1984-04-08
Abstract
No abstract record available.
Inventors
- 👤 Roy H Cornely
- 👤 Joseph R Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:52
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315; H03K19/00; H03K19/02; H03K19/14; H03K3/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
A LIGHT SIGNAL SYSTEM, COMPRISING: A TUNNEL DIODE CIRCUIT INCLUDING A TUNNEL DIODE HAVING A LOW VOLTAGE STATE AND A HIGH VOLTAGE STATE, A LASER DIODE CONNECTED IN SAID TUNNEL DIODE CIRCUIT TO RECEIVE AN AMOUNT OF CURRENT DETERMINED BY THE STATE OF SAID TUNNEL DIODE, AN INPUT CIRCUIT INCLUDING A BIAS SOURCE, AND AT LEAST ONE P-N JUNCTION PHOTODIODE DETECTOR CONNECTED IN BACK-BIASED POLARITY BETWEEN SAID BIAS SOURCE AND SAID TUNNEL DIODE, WHEREBY INPUT LIGHT IMPINGING ON SAID PHOTODIODE DETECTOR CAUSES IT TO CONDUCT AND CAUSES SAID TUNNEL DIODE TO SWITCH FROM ONE OF ITS VOLTAGE STATES TO THE OTHER, A P-N JUNCTION LIGHT AMPLIFIER POSITIONED TO RECEIVE AND AMPLIFY COHERENT LIGHT FROM SAID LASER DIODE, AND A LIGHT SPLITTER POSITIONED TO DIRECT LIGHT FROM SAID LIGHT AMPLIFIER TO INPUTS OF A PLURALITY OF OTHER LIGHT SIGNAL SYSTEMS.
References Cited (Backward Citations)
US3258596A
Cited
DE1079113B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |