US3113187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voice communication circuit evaluator
Assignee: AT&T Inc
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Filing: 1961-07-28
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Granted: 1963-12-03
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Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 James L Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:21
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/12; H; H04; H04R; H04R29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A TESTING SYSTEM FOR A VOICE TRANSMISSION CIRCUIT, A NETWORK WHOSE TRANSMISSION RESPONSE IS SUBSTANTIALLY IDENTICAL TO THE TRANSMISSION PROPERTIES OF THE MIDDLE EAR AND THE BASILAR MEMBRANE OF THE HUMAN EAR, MEANS FOR COUPLING SAID NETWORK TO A VOICE TRANSMISSION CIRCUIT, AND A NONLINEAR ELECTRICAL CIRCUIT SUPPLIED WITH SIGNALS DEVELOPED BY SAID NETWORK IN RESPONSE TO SIGNALS IN SAID VOICE TRANSMISSION CIRCUIT FOR SELECTIVELY INTEGRATING THE ABSOLUTE MAGNITUDE OF SAID DEVELOPED SIGNALS.
Claim 2
Dependent Claim
74 words
IN A TESTING SYSTEM FOR A VOICE TRANSMISSION CIRCUIT, A NETWORK WHOSE TRANSMISSION RESPONSE IS SUBSTANTIALLY IDENTICAL TO THE TRANSMISSION PROPERTIES OF THE MIDDLE EAR AND THE BASILAR MEMBRANE OF THE HUMAN EAR, MEANS FOR COUPLING SAID NETWORK TO A VOICE TRANSMISSION CIRCUIT, AND A NONLINEAR ELECTRICAL CIRCUIT SUPPLIED WITH SIGNALS DEVELOPED BY SAID NETWORK IN RESPONSE TO SIGNALS IN SAID VOICE TRANSMISSION CIRCUIT FOR SELECTIVELY INTEGRATING THE ABSOLUTE MAGNITUDE OF SAID DEVELOPED SIGNALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |