US3760108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speech diagnostic and therapeutic apparatus including means for measuring the speech intensity and fundamental frequency
Assignee: TETRACHORD CORP
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Filing: 1971-09-30
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Granted: 1973-09-18
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Expires: 1991-09-30
Abstract
Abstract An apparatus for the measurement of fundamental vocal frequencies and relative speech intensity is provided which apparatus has an immediate feedback of information. An input of a complex wave form into the present apparatus produces an output indicating whether the intensity of the input exceeds a predetermined set level. The input is also applied to a harmonic inhibitor circuit which produces an output of the lowest frequency component of the input complex waveform and inhibits harmonics of this lowest frequency component and produces an output indicative of whether the fundamental vocal frequency detected is within a predetermined selected range.
Inventors
- 👤 J Gacek
- 👤 J Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:08
CPC Classifications
G; G10; G10L; G10L25/00; G10L25/90; G09; G09B; G09B19/00; G09B19/04; G10L25/78
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
167 words
A speech diagnostic and therapeutic apparatus comprising in combination: a. input means for receiving vocal sounds and generating a voltage signal therefrom; b. overload detector means connected to said input means for detecting vocal intensity of said input means vocal sounds in excess of predetermined levels and disabling said apparatus when said predetermined overload level is detected; c. signal detector means connected to said input means for indicating a predetermined minimum input signal level; d. harmonic inhibitor circuit connected to said input means for inhibiting harmonics of input vocal sounds; e. output means connected to said overload detector means, said signal detector means and said harmonic inhibitor circuit for producing an output indicative of the fundamental vocal frequency being above, below or within a predetermined frequency range and indicative of the vocal level exceeding a predetermined level; and f. A voltage comparator circuit for comparing the output of said harmonic inhibitor circuit and providing an indication of whether said output is above or below predetermined set levels.
Claim 2
Dependent Claim
167 words
A speech diagnostic and therapeutic apparatus comprising in combination: a. input means for receiving vocal sounds and generating a voltage signal therefrom; b. overload detector means connected to said input means for detecting vocal intensity of said input means vocal sounds in excess of predetermined levels and disabling said apparatus when said predetermined overload level is detected; c. signal detector means connected to said input means for indicating a predetermined minimum input signal level; d. harmonic inhibitor circuit connected to said input means for inhibiting harmonics of input vocal sounds; e. output means connected to said overload detector means, said signal detector means and said harmonic inhibitor circuit for producing an output indicative of the fundamental vocal frequency being above, below or within a predetermined frequency range and indicative of the vocal level exceeding a predetermined level; and f. A voltage comparator circuit for comparing the output of said harmonic inhibitor circuit and providing an indication of whether said output is above or below predetermined set levels.
Claim 3
Dependent Claim
26 words
The apparatus according to claim 1 in which said signal detector means disables said output means when the input signal fails to reach said predetermined level.
Claim 4
Dependent Claim
38 words
The apparatus according to claim 1 in which said output means includes visual lights to indicate said fundamental vocal frequency being above, below or within a predetermined frequency range and of the vocal level exceeding a predetermined level.
Claim 5
Dependent Claim
38 words
The apparatus in accordance with claim 1 in which said harmonic inhibitor circuit includes a plurality of frequency filters connected in parallel to said input means, said filters being adapted to inhibit harmonics in said input vocal sounds.
Claim 6
Dependent Claim
47 words
The apparatus according to claim 4 in which said harmonic inhibitor circuit includes a circuit means connected to said plurality of frequency filters for inhibiting the output of all filters having cutoff frequency outputs higher than the cutoff frequency of the filter having the lowest frequency output.
Claim 7
Dependent Claim
24 words
The apparatus according to claim 1 in which a timer means is connected to said apparatus for controlling time duration of input vocal responses.
Claim 8
Dependent Claim
37 words
The apparatus according to claim 6 in which said timer means, signal detector means and overload detector means each having relays connected in series for disabling said output means when any one of said relays is actuated.
Claim 9
Dependent Claim
31 words
The apparatus according to claim 1 wherein said output means comprises a visual indicator, and wherein said overload detector means disables said visual indicator when said predetermined overload level is detected.
Claim 10
Dependent Claim
48 words
The apparatus according to claim 8 further comprising: means for visually indicating when said received vocal sound is above or below a predetermined frequency range; and means for disabling said visual indicating means when said signal detector indicates a vocal input below said predetermined minimum input signal level.
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |