US3286032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital microphone
Assignee: TDK Micronas GmbH
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Filing: 1963-06-03
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Granted: 1966-11-15
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Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Baum Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:48
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02; H04B14/04; H04B14/044; H03; H03M; H03M1/00; H04R; H04R1/00; H04R1/005; H04R23/00; H03M1/12; H03M1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A MICROPHONE TO CONVERT SOUND WAVES INTO A GIVEN DIGITAL CODE COMPRISING: FIRST MEANS INTEGRAL WITH SAID MICROPHONE HAVING MOTION IMPARTED THERETO BY SAID SOUND WAVES, SAID MOTION BEING PROPORTIONAL TO THE AMPLITUDE OF SAID SOUND WAVES; AND SECOND MEANS INTEGRAL WITH SAID MICROPHONE RESPONSIVE TO SAID MOTION OF SAID FIRST MEANS TO PRODUCE A DIGITAL CODE OUTPUT ACCORDING TO SAID GIVEN DIGITAL CODE REPRESENTATIVE OF THE AMPLITUDE OF SAID SOUND WAVES.
Claim 2
Dependent Claim
72 words
A MICROPHONE TO CONVERT SOUND WAVES INTO A GIVEN DIGITAL CODE COMPRISING: FIRST MEANS INTEGRAL WITH SAID MICROPHONE HAVING MOTION IMPARTED THERETO BY SAID SOUND WAVES, SAID MOTION BEING PROPORTIONAL TO THE AMPLITUDE OF SAID SOUND WAVES; AND SECOND MEANS INTEGRAL WITH SAID MICROPHONE RESPONSIVE TO SAID MOTION OF SAID FIRST MEANS TO PRODUCE A DIGITAL CODE OUTPUT ACCORDING TO SAID GIVEN DIGITAL CODE REPRESENTATIVE OF THE AMPLITUDE OF SAID SOUND WAVES.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |