US3293452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relative magnitude detector
Assignee: International Business Machines Corp
•
Filing: 1963-10-22
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Granted: 1966-12-20
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Expires: 1983-10-22
Abstract
No abstract record available.
Inventors
- 👤 Lawrence P Horwitz
- 👤 Mond Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:32
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/0038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
AN APPARATUS FOR PROVIDING AN INDICATION OF THE RELATIVE MAGNITUDE OF A PLURALITY OF INPUT SIGNALS COMPRISING, IN COMBINATION: A PLURALITY OF CURRENT PATHS, EACH RESPONSIVE TO AN INPUT SIGNAL, AND EACH COMPRISING AN ASYMMETRICALLYCONDUCTING IMPEDANCE AND A THRESHOLD SWITHCING DEVICE FOR PROVIDING AN OUTPUT WHEN A PREDETERMINED MANITUDE OF CURRENT IS EXCEEDED; ANOTHER CURRENT PATH, INCLUDING A COMMON IMPEDANCE, CONTROLLABLY RESPONSIVE TO THE CURRENT IN EACH OF SAID CURRRENT PATHS FOR GENERATING A BACK-BIASING SIGNAL TO CAUSE THE ASYMMETRICALLY-CONDUCTING IMPEDANCE IN ALL CONTROLLING CURRENT PATHS, EXCEPT FOR THE CONTROLLING CURRENT PATH TO WHICH THE LARGEST INPUT SIGNAL IS APPLIED, TO HINDER THE FLOW OF CURRENT IN SAID PATHS; AND A PLURALITY OF MEANS, EACH RESPONSIVE TO AN INPUT GENERATED BY A THRESHOLD, CURRENT-SENSITIVE SWITCHING DEVICE FOR CONTROLLING THE CURRENT PATHS TO INHIBIT THE EFFECT OF THE CORRESPONDING INPUT SIGNAL ON THE COMMON IMPEDANCE WHEN THE THRESHOLD OF THE SWITCHING DEVICE IS EXCEEDED; A PLURALITY OF INDICATING MEANS RESPONSIVE TO THE SWITCHING MEANS FOR INDICATING THE RELATIVE MAGNITUDE OF THE INPUT SIGNAL; WHEREBY EACH OF THE APPLIED INPUT SIGNALS CAUSES THE CORRESPONDING THRESHOLD DEVICE TO BE ACTIVATED IN THE SEQUENCY DETERMINED BY THE RELATIVE MAGNITUDES OF THE APPLIED INPUT SIGNALS.
Claim 2
Independent Claim
200 words
AN APPARATUS FOR PROVIDING AN INDICATION OF THE RELATIVE MAGNITUDE OF A PLURALITY OF INPUT SIGNALS COMPRISING, IN COMBINATION: A PLURALITY OF CURRENT PATHS, EACH RESPONSIVE TO AN INPUT SIGNAL, AND EACH COMPRISING AN ASYMMETRICALLYCONDUCTING IMPEDANCE AND A THRESHOLD SWITHCING DEVICE FOR PROVIDING AN OUTPUT WHEN A PREDETERMINED MANITUDE OF CURRENT IS EXCEEDED; ANOTHER CURRENT PATH, INCLUDING A COMMON IMPEDANCE, CONTROLLABLY RESPONSIVE TO THE CURRENT IN EACH OF SAID CURRRENT PATHS FOR GENERATING A BACK-BIASING SIGNAL TO CAUSE THE ASYMMETRICALLY-CONDUCTING IMPEDANCE IN ALL CONTROLLING CURRENT PATHS, EXCEPT FOR THE CONTROLLING CURRENT PATH TO WHICH THE LARGEST INPUT SIGNAL IS APPLIED, TO HINDER THE FLOW OF CURRENT IN SAID PATHS; AND A PLURALITY OF MEANS, EACH RESPONSIVE TO AN INPUT GENERATED BY A THRESHOLD, CURRENT-SENSITIVE SWITCHING DEVICE FOR CONTROLLING THE CURRENT PATHS TO INHIBIT THE EFFECT OF THE CORRESPONDING INPUT SIGNAL ON THE COMMON IMPEDANCE WHEN THE THRESHOLD OF THE SWITCHING DEVICE IS EXCEEDED; A PLURALITY OF INDICATING MEANS RESPONSIVE TO THE SWITCHING MEANS FOR INDICATING THE RELATIVE MAGNITUDE OF THE INPUT SIGNAL; WHEREBY EACH OF THE APPLIED INPUT SIGNALS CAUSES THE CORRESPONDING THRESHOLD DEVICE TO BE ACTIVATED IN THE SEQUENCY DETERMINED BY THE RELATIVE MAGNITUDES OF THE APPLIED INPUT SIGNALS.
References Cited (Backward Citations)
US3125721A
Cited
US2974286A
Cited
US2966672A
Cited
US3173127A
Cited
US3092732A
Cited
US3166679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |