US3810156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal identification system
Assignee: Individual
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Filing: 1972-04-05
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Granted: 1974-05-07
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Expires: 1992-04-05
Abstract
Abstract A system is disclosed for reducing analog signal patterns or sequences to concise digital representations for identification, as to recognize an audio signal, for example, manifesting a musical recording. In the system, audio (analog) signals are sampled for dissection into a plurality of values which are accumulated over a sampling interval to provide an aggregate value. Preliminary to such a sampling operation, the signal of interest may be frequency dissected into a plurality of individual signals which are sampled then summarized or totalled. The aggregate total numerical values are reduced to a representative form by encoding them in accordance with their relative significance. Operation over repeated sampling intervals affords an expanded basis for indentification and recognition.
Inventors
- 👤 R Goldman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:37
CPC Classifications
G; G10; G10L; G10L15/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
77 words
A system for statistical identification of a time-referenced substantially-continuous signal sequence, comprising: timing means for defining a plurality of periods in time offset lapped relationship and within an interval of said signal sequence; means for analyzing said signal sequence during each of said periods defined by said timing means, to provide a plurality of representative digital code signals; and means for registering said plurality of representative digital code signals as a statistical identification of said signal sequence.
Claim 2
Independent Claim
77 words
A system for statistical identification of a time-referenced substantially-continuous signal sequence, comprising: timing means for defining a plurality of periods in time offset lapped relationship and within an interval of said signal sequence; means for analyzing said signal sequence during each of said periods defined by said timing means, to provide a plurality of representative digital code signals; and means for registering said plurality of representative digital code signals as a statistical identification of said signal sequence.
Claim 3
Dependent Claim
27 words
A system according to claim 1 wherein said means for analyzing said signal sequence includes a digital filter means for providing digital values from said signal sequence.
Claim 4
Dependent Claim
28 words
A system according to claim 1 wherein said means for analyzing includes means for comparing represented magnitudes of components of said signal sequence to provide representative binary signals.
Claim 5
Dependent Claim
31 words
A system according to claim 1 further including means for comparing said plurality of representative digital code signals from said means for registering with another plurality of representative digital code signals.
Claim 6
Dependent Claim
50 words
A system according to claim 1 wherein said means for analyzing said signal sequence includes a digital filter means for providing digital values from said signal sequence and wherein said means for analyzing includes means for comparing represented magnitudes of components of said signal sequence to provide representative binary signals.
Claim 7
Dependent Claim
36 words
A system according to claim 5 further including means for comparing said plurality of representative digital code signals from said means for registering with another plurality of representative digital code signals to identify said signal sequence.
Claim 8
Dependent Claim
23 words
A system according to claim 1 wherein said means for analyzing further includes means for manifesting an ambiguity in said digital code signals.
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) | 1977-05-06 | 1977-11-05 | 1978-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-06 | 1981-11-05 | 1982-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-06 | 1985-11-05 | 1986-05-07 | $7700.00 | Window Closed / Lapsed |