US3197574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise suppression system
Assignee: Individual
•
Filing: 1962-04-16
•
Granted: 1965-07-27
•
Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Zane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:10
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; G10K11/175; G10K11/178; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
APPARATUS FOR PRODUCING A RESULTANT ELECTRICAL SIGNAL WHICH IS THE ELECTRICAL ANALOG OF A RELATIVELY MAXIMIZED WANTED SOUND PASSAGE AND A RELATIVELY MINIMIZED UNWANTED NOISE PASSAGE, COMPRISING: SIGNAL-CARRYING CHANNEL MEANS INCLUDING A FIRST WANTED SOUND CHANNEL AND A SECOND UNWANTED NOISE CHANNEL, SAID FIRST AND SECOND CHANNELS BEING PROVIDED WITH TRANSDUCER MEANS FOR TRANSDUCING A FIRST TRANSDUCIBLE INPUT HAVING A RELATIVELY MAXIMIZED RATIO OF WANTED-SOUND-TO-UNWANTED-NOISE PORTIONS FOR PRODUCING IN SAID FIRST CHANNEL A FIRST ELECTRICAL SIGNAL HAVING A RELATIVELY MAXIMIZED WANTED SOUND ELECTRICAL SIGNAL PORTION CORRESPONDING TO A WANTED SOUND PASSAGE AND HAVING A RELATIVELY MINIMIZED UNWANTED NOISE ELECTRICAL SIGNAL PORTION CORRESPONDING TO AN UNWANTED NOISE PASSAGE, AND FOR TRANSDUCING A SECOND TRANSDUCIBLE INPUT HAVING A RELATIVELY MAXIMIZED RATIO OF UNWANTEDNOISE-TO-WANTED-SOUND PORTIONS FOR PRODUCING IN SAID SECOND CHANNEL AN ELECTRICAL SIGNAL HAVING A RELATIVELY MAXIMIZED UNWANTED NOISE ELECTRICAL SIGNAL PORTION CORRESPONDING TO AN UNWANTED NOISE PASSAGE AND HAVING A RELA-
Claim 2
Dependent Claim
150 words
APPARATUS FOR PRODUCING A RESULTANT ELECTRICAL SIGNAL WHICH IS THE ELECTRICAL ANALOG OF A RELATIVELY MAXIMIZED WANTED SOUND PASSAGE AND A RELATIVELY MINIMIZED UNWANTED NOISE PASSAGE, COMPRISING: SIGNAL-CARRYING CHANNEL MEANS INCLUDING A FIRST WANTED SOUND CHANNEL AND A SECOND UNWANTED NOISE CHANNEL, SAID FIRST AND SECOND CHANNELS BEING PROVIDED WITH TRANSDUCER MEANS FOR TRANSDUCING A FIRST TRANSDUCIBLE INPUT HAVING A RELATIVELY MAXIMIZED RATIO OF WANTED-SOUND-TO-UNWANTED-NOISE PORTIONS FOR PRODUCING IN SAID FIRST CHANNEL A FIRST ELECTRICAL SIGNAL HAVING A RELATIVELY MAXIMIZED WANTED SOUND ELECTRICAL SIGNAL PORTION CORRESPONDING TO A WANTED SOUND PASSAGE AND HAVING A RELATIVELY MINIMIZED UNWANTED NOISE ELECTRICAL SIGNAL PORTION CORRESPONDING TO AN UNWANTED NOISE PASSAGE, AND FOR TRANSDUCING A SECOND TRANSDUCIBLE INPUT HAVING A RELATIVELY MAXIMIZED RATIO OF UNWANTEDNOISE-TO-WANTED-SOUND PORTIONS FOR PRODUCING IN SAID SECOND CHANNEL AN ELECTRICAL SIGNAL HAVING A RELATIVELY MAXIMIZED UNWANTED NOISE ELECTRICAL SIGNAL PORTION CORRESPONDING TO AN UNWANTED NOISE PASSAGE AND HAVING A RELA-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |