US3286031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voice actuated device
Assignee: ALTO SCIENTIFIC CO Inc
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Filing: 1963-03-04
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Granted: 1966-11-15
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Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 David A Geddes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:09
CPC Classifications
G; G08; G08C; G08C23/00; G08C23/02; F; F16; F16P; F16P3/00; F16P3/12; F16P3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A VOICE ACTUATED DEVICE FOR PROVIDING A TRIGGER SIGNAL IN RESPONSE TO SELECTED VOICE SOUND COMPRISING: A TRANSDUCER MEANS FOR CONVERTING ACOUSTIC VIBRATIONS TO A CORRESPONDING ELECTRICAL SIGNAL; AMPLITUDE PEAK DETECTOR MEANS RESPONSIVE TO THE POSITIVE AND NEGATIVE PORTIONS OF SAID ELECTRICAL SIGNAL AND OPERATIVE TO DERIVE A POSITIVE AND A NEGATIVE ENVELOPE PEAK SIGNAL; MEANS FOR COMPARING THE POSITIVE AND NEGATIVE ENVELOPE PEAK SIGNALS AND FOR DEVELOPING AN ASYMMETRY SIGNAL COMMENSURATE WITH THEIR DIFFERENCE; AND FILTER MEANS RESPONSIVE TO SAID ASYMMETRY SIGNAL AND OPERATIVE TO DEVELOP SAID TRIGGER SIGNAL, SAID FILTER MEANS BEING SELECTED TO PASS ONLY THOSE PORTIONS OF SAID ASYMMETRY WHICH CORRESPOND TO SAID SELECTED VOICE SOUNDS.
Claim 2
Dependent Claim
110 words
A VOICE ACTUATED DEVICE FOR PROVIDING A TRIGGER SIGNAL IN RESPONSE TO SELECTED VOICE SOUND COMPRISING: A TRANSDUCER MEANS FOR CONVERTING ACOUSTIC VIBRATIONS TO A CORRESPONDING ELECTRICAL SIGNAL; AMPLITUDE PEAK DETECTOR MEANS RESPONSIVE TO THE POSITIVE AND NEGATIVE PORTIONS OF SAID ELECTRICAL SIGNAL AND OPERATIVE TO DERIVE A POSITIVE AND A NEGATIVE ENVELOPE PEAK SIGNAL; MEANS FOR COMPARING THE POSITIVE AND NEGATIVE ENVELOPE PEAK SIGNALS AND FOR DEVELOPING AN ASYMMETRY SIGNAL COMMENSURATE WITH THEIR DIFFERENCE; AND FILTER MEANS RESPONSIVE TO SAID ASYMMETRY SIGNAL AND OPERATIVE TO DEVELOP SAID TRIGGER SIGNAL, SAID FILTER MEANS BEING SELECTED TO PASS ONLY THOSE PORTIONS OF SAID ASYMMETRY WHICH CORRESPOND TO SAID SELECTED VOICE SOUNDS.
References Cited (Backward Citations)
US3198884A
Cited
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 |