US3812291A
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US
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Signal pattern encoder and classifier
Assignee: SCOPE ACQUISITION CORP A DE CORP
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Filing: 1972-06-19
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Granted: 1974-05-21
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Expires: 1992-06-19
Abstract
Abstract A device for encoding and classifying signal data obtained from a multiplicity of property filters. A fixed length binary pattern is produced for each signal input. This binary pattern provides the input to a pattern classifier which is organized for a particular classification task by an estimation process that combines a multiplicity of binary patterns into a standard reference pattern. Classification is accomplished by comparing binary encoded patterns generated by signal occurrences with previously generated reference patterns.
Inventors
- 👤 D Brodes
- 👤 M Hitchcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:49
CPC Classifications
G; G10; G10L; G10L15/00; G10L15/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
130 words
A signal pattern encoder and classifier comprising a plurality of property filter means for receiving a signal input, coding compressor means coupled to the output of said property filter means for providing a plurality of voltage values equal in number to said filters, said values being summed over a time period determined by said coding compressor, signal event detector means coupled in parallel with said property filter means for controlling said compressor means, binary encoder means coupled to the output of said compressor means for providing a bit pattern description of said voltage values provided by said coding compressor, and pattern classifier means coupled to the output of said binary encoder means for comparing the output of said encoder means to a reference pattern previously established by said classifier means.
Claim 2
Dependent Claim
130 words
A signal pattern encoder and classifier comprising a plurality of property filter means for receiving a signal input, coding compressor means coupled to the output of said property filter means for providing a plurality of voltage values equal in number to said filters, said values being summed over a time period determined by said coding compressor, signal event detector means coupled in parallel with said property filter means for controlling said compressor means, binary encoder means coupled to the output of said compressor means for providing a bit pattern description of said voltage values provided by said coding compressor, and pattern classifier means coupled to the output of said binary encoder means for comparing the output of said encoder means to a reference pattern previously established by said classifier means.
Claim 3
Dependent Claim
19 words
The encoder and classifier of claim 1 further comprising register means coupled to the output of said classifier means.
Claim 4
Dependent Claim
20 words
The encoder and classifier of claim 1 further comprising an analog-to-digital converter coupled between said compressor and said filter means.
Claim 5
Dependent Claim
18 words
The encoder and classifier of claim 1 wherein said multiplicity of property filter means comprises a spectrum analyzer.
Claim 6
Dependent Claim
18 words
The encoder and classifier of claim 1 wherein said signal event detector means comprises a word boundary detector.
Claim 7
Dependent Claim
39 words
The encoder and classifier of claim 1 wherein said binary encoder means comprises a plurality of voltage comparators coupled to the outputs of said coding compressor for providing a multiplicity of comparisons of the outputs of said coding compressor.
Claim 8
Dependent Claim
117 words
An acoustic pattern recognition device comprising a plurality of property filter means for receiving an audio input, coding compressor means coupled to the output of said property filter means, said compressor means providing a plurality of voltage values summed over a time period, signal event detector means coupled in parallel with said filter means for controlling said coding compressor means, binary encoder means coupled to the output of said compressor means for providing a bit pattern description of said voltage values provided by said compressor means, and pattern classifier means coupled to the output of said binary encoder means for comparing the output of said encoder means to a reference pattern previously established by said classifier means.
Claim 9
Dependent Claim
117 words
An acoustic pattern recognition device comprising a plurality of property filter means for receiving an audio input, coding compressor means coupled to the output of said property filter means, said compressor means providing a plurality of voltage values summed over a time period, signal event detector means coupled in parallel with said filter means for controlling said coding compressor means, binary encoder means coupled to the output of said compressor means for providing a bit pattern description of said voltage values provided by said compressor means, and pattern classifier means coupled to the output of said binary encoder means for comparing the output of said encoder means to a reference pattern previously established by said classifier means.
Claim 10
Dependent Claim
20 words
The pattern recognition device of claim 7 further comprising register means coupled to the output of said pattern classifier means.
Claim 11
Dependent Claim
22 words
The pattern recognition device of claim 7 further comprising an anolog-to-digital converter coupled between said coding compressor means and said filter means.
Claim 12
Dependent Claim
17 words
The pattern recognition device of claim 7 wherein said signal event detector comprises a word boundary detector.
Claim 13
Dependent Claim
60 words
The pattern recognition device of claim 7 wherein said coding compressor means includes a plurality of bandpass filters equal in number to said property filter means wherein said binary encoder means comprises a plurality of voltage comparators coupled to the outputs of said coding compressor means for providing a multiplicity of comparisons of the outputs of said coding compressor means.
Claim 14
Dependent Claim
89 words
In an encoding device, a coding compressor means having a plurality of outputs, said compressor means providing a plurality of voltage values summed over a time period determined by said compressor means, a binary encoder comprising a plurality of voltage comparator means coupled to the outputs of said coding compressor for providing a multiplicity of comparisons of the outputs of said coding compressor means, and pattern classifier means coupled to the output of said binary encoder for comparing said output of said encoder to a reference pattern previously established.
Claim 15
Dependent Claim
89 words
In an encoding device, a coding compressor means having a plurality of outputs, said compressor means providing a plurality of voltage values summed over a time period determined by said compressor means, a binary encoder comprising a plurality of voltage comparator means coupled to the outputs of said coding compressor for providing a multiplicity of comparisons of the outputs of said coding compressor means, and pattern classifier means coupled to the output of said binary encoder for comparing said output of said encoder to a reference pattern previously established.
Claim 16
Dependent Claim
27 words
The device of claim 12 wherein said voltage comparator means comprises a series of voltage comparators, and a plurality of summing amplifiers coupled to said voltage comparators.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |