US3774146A
Expired / Lapsed
US
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Method and apparatus for electric signal pattern discrimination
Assignee: ConocoPhillips Co
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Filing: 1972-03-23
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Granted: 1973-11-20
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Expires: 1992-03-23
Abstract
Abstract A method for extracting predetermined types of electrical signal data from an overall composite of time analog signal input information, the method consisting of constructing an ideal filter for each of selected electrical signal components of an input signal group, such filter construction being carried out by determining the pseudo-inverse or generalized inverse of a polynomial matrix as determined for the particular input signals to be examined, with application of the polynomial matrix for preadjustment of a multichannel pattern discriminating filter which, when energized by the input signals under examination, will produce separately the requisite selected electrical signal component outputs. Apparatus for carrying out the method may consist of plural channels of time domain filters connected in series with a weighting device for convolving input electrical signals; each of the convolution filters is adjusted to function at predetermined times and amplitudes in accordance with the matrix function or operator determined for selected signal component functions of a particular set of input electrical signals.
Inventors
- 👤 P Goupillaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V2210/00; G01V2210/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
Apparatus for processing multi-signal input electrical information by effecting exclusive extraction of plural data indications each having predetermined energy characteristics, comprising: means for dividing said multi-signal electrical information into plural, parallel groups of plural signal inputs; a plurality of convolution means each receiving a group of said plural signal inputs for separately convolving each input with a signal component operator representative of time and amplitude characteristics for a selected energy component of said plural signal inputs such that a respective convolution output is generated for each of said particular energy components; a plurality of summation means for separately summing the plural convolution outputs from each of said plural convolution means to generate a plurality of generalized indications of component signal energy which is present in said signal inputs.
Claim 2
Dependent Claim
128 words
Apparatus for processing multi-signal input electrical information by effecting exclusive extraction of plural data indications each having predetermined energy characteristics, comprising: means for dividing said multi-signal electrical information into plural, parallel groups of plural signal inputs; a plurality of convolution means each receiving a group of said plural signal inputs for separately convolving each input with a signal component operator representative of time and amplitude characteristics for a selected energy component of said plural signal inputs such that a respective convolution output is generated for each of said particular energy components; a plurality of summation means for separately summing the plural convolution outputs from each of said plural convolution means to generate a plurality of generalized indications of component signal energy which is present in said signal inputs.
Claim 3
Dependent Claim
203 words
A multi-signal pattern discriminating filter for processing one or more input signal traces of related electrical data, comprising: input means receiving said input traces of signal data; a plurality of pattern filter means each receiving said input traces of signal data and each providing a time analog signal output which is representative of a respective one of plural selected components of energy, each pattern filter means including plural time domain filter means each receiving a different one of said plural signal traces as input and each providing a plurality of time delayed outputs which are delayed by a different time, and each including plural weighting networks each functioning in accordance with a characteristic operator determined by the pseudoinverse matrix function for the input signal and each receiving one of said pluralities of time delayed outputs from a respective time domain filter means to provide a summed output, each such filter also including summation means receiving the summed output from each of said plural weighting networks to provide a further summed time analog signal iNdicative of a selected signal energy component; and output means selectively providing a record and indication of each of the plurality of further summed time analog signal energy component outputs.
Claim 4
Dependent Claim
203 words
A multi-signal pattern discriminating filter for processing one or more input signal traces of related electrical data, comprising: input means receiving said input traces of signal data; a plurality of pattern filter means each receiving said input traces of signal data and each providing a time analog signal output which is representative of a respective one of plural selected components of energy, each pattern filter means including plural time domain filter means each receiving a different one of said plural signal traces as input and each providing a plurality of time delayed outputs which are delayed by a different time, and each including plural weighting networks each functioning in accordance with a characteristic operator determined by the pseudoinverse matrix function for the input signal and each receiving one of said pluralities of time delayed outputs from a respective time domain filter means to provide a summed output, each such filter also including summation means receiving the summed output from each of said plural weighting networks to provide a further summed time analog signal iNdicative of a selected signal energy component; and output means selectively providing a record and indication of each of the plurality of further summed time analog signal energy component outputs.
Claim 5
Dependent Claim
43 words
A multi-signal pattern discriminating filter as set forth in claim 2 which is further characterized in that: each time domain filter of said plurality of pattern filter means delays each respective one of the plurality of time delayed outputs by the same increment.
Claim 6
Dependent Claim
146 words
Apparatus for processing multi-signal input electrical information as derived for plural related seismic trace data by effecting exclusive extraction of plural data indications each having predetermined energy characteristics, comprising: means for driving said multi-signal electrical seismic trace information into plural, parallel groups of plural trace inputs; a plurality of convolution means each receiving a group of said plural trace inputs for separately convolving each input with a signal trace operator representative of time and amplitude characteristics for energy traveling along one of a plurality of paths corresponding to particular components of seismic energy such that a respective convolution output is generated for each of said particular components; a plurality of summation means for separately summing the plural convolution outputs from each of said plural convolution means to generate a plurality of generalized indications of seismic energy which has traveled along each of said plural particular paths.
Claim 7
Dependent Claim
146 words
Apparatus for processing multi-signal input electrical information as derived for plural related seismic trace data by effecting exclusive extraction of plural data indications each having predetermined energy characteristics, comprising: means for driving said multi-signal electrical seismic trace information into plural, parallel groups of plural trace inputs; a plurality of convolution means each receiving a group of said plural trace inputs for separately convolving each input with a signal trace operator representative of time and amplitude characteristics for energy traveling along one of a plurality of paths corresponding to particular components of seismic energy such that a respective convolution output is generated for each of said particular components; a plurality of summation means for separately summing the plural convolution outputs from each of said plural convolution means to generate a plurality of generalized indications of seismic energy which has traveled along each of said plural particular paths.
References Cited (Backward Citations)
US3311874A
Cited
US3437999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |