US3283311A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic element read-out utilizing transmission line sensing circuit
Assignee: Unisys Corp
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Filing: 1961-11-01
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Granted: 1966-11-01
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 George H Guttroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:09
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014; G11C11/06021; G11C11/06028; G11C11/06035; G05; G05G; G05G15/00; G05G15/08; G06; G06F; G06F7/00; G06F7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A MAGNETIC MEMORY ELEMENT READ-OUT SYSTEM COMPRISING: A MAGNETIC MEMORY ELEMENT CAPABLE OF GENERATING INFORMATION SIGNALS IN ACCORDANCE WITH INFORMATION STORED THEREIN AND IN RESPONSE TO DRIVE SIGNALS APPLIED THERETO; AT LEAST ONE DRIVE-SIGNAL MEANS COUPLED TO SAID MEMORY ELEMENT; A TRANSMISSION LINE HAVING INPUT SIGNAL MEANS COUPLED TO SAID MEMORY ELEMENT TO ACT AS A SENSING LINE THEREWITH, SAID TRANSMISSION LINE HAVING A PORTION THEREOF FORMED IN A COIL CONFIGURATION THEREBY PROVIDING A RELATIVELY LARGE IMPEDANCE TO ATTENUATE THE SPURIOUS SIGNALS GENERATED BY THE CAPACITANCE AND INDUCTANCE COUPLING BETWEEN SAID DRIVE-SIGNAL MEANS AND THE INPUT SIGNAL MEANS OF SAID TRANSMISSION LINE, SAID COIL FORMED PORTION OF SAID TRANSMISSION LINE NOT PRESENTING A HIGH IMPEDANCE OF SAID INFORMATION SIGNALS; AND LOAD MEANS COUPLED ACROSS SAID TRANSMISSION LINE TO ACCEPT SAID INFORMATIONS SIGNALS AND SAID ATTENUATED SPURIOUS SIGNALS.
Claim 2
Dependent Claim
137 words
A MAGNETIC MEMORY ELEMENT READ-OUT SYSTEM COMPRISING: A MAGNETIC MEMORY ELEMENT CAPABLE OF GENERATING INFORMATION SIGNALS IN ACCORDANCE WITH INFORMATION STORED THEREIN AND IN RESPONSE TO DRIVE SIGNALS APPLIED THERETO; AT LEAST ONE DRIVE-SIGNAL MEANS COUPLED TO SAID MEMORY ELEMENT; A TRANSMISSION LINE HAVING INPUT SIGNAL MEANS COUPLED TO SAID MEMORY ELEMENT TO ACT AS A SENSING LINE THEREWITH, SAID TRANSMISSION LINE HAVING A PORTION THEREOF FORMED IN A COIL CONFIGURATION THEREBY PROVIDING A RELATIVELY LARGE IMPEDANCE TO ATTENUATE THE SPURIOUS SIGNALS GENERATED BY THE CAPACITANCE AND INDUCTANCE COUPLING BETWEEN SAID DRIVE-SIGNAL MEANS AND THE INPUT SIGNAL MEANS OF SAID TRANSMISSION LINE, SAID COIL FORMED PORTION OF SAID TRANSMISSION LINE NOT PRESENTING A HIGH IMPEDANCE OF SAID INFORMATION SIGNALS; AND LOAD MEANS COUPLED ACROSS SAID TRANSMISSION LINE TO ACCEPT SAID INFORMATIONS SIGNALS AND SAID ATTENUATED SPURIOUS SIGNALS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |