Patent US3863057A successfully refreshed from Google Patents.
US3863057A
Expired / Lapsed
US
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Apparatus for serially-correlating time series
Assignee: Western Atlas International Inc
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Filing: 1972-01-17
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Granted: 1975-01-28
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Expires: 1992-01-17
Abstract
Abstract An apparatus for serially-correlating two discrete time series wherein the data values of each element of the series are converted to floating-point numbers consisting of an algebraic sign, a mantissa, and an exponent to an arbitrary base. The exponents are adjusted to constrain the mantissas to fall within a narrow, substantially-constant, numerical range near unity. Variations of the exponents of the respective time series are thus representative of variations in the signal levels of the time series. The signs and exponents are then stripped from the mantissas and are serially correlated as if they were the actual data values.
Inventors
- 👤 Lee E Siems
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:54
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/364; G01V1/366; G06; G06F; G06F17/00; G06F17/10; G06F17/15
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A device for calculating the approximate value of the inner product of two vectors whose component values are expressed as floating-point numbers wherein each number consists of a sign, an exponent, and a mantissa comprising: means for setting the mantissas of said component values substantially equal to one; exponent generator means for associating with each exponent its corresponding sign to form two vectors of the signed exponents; correlator means to form the inner product of said vectors of signed exponents; and coupling means interconnecting said exponent generator means with said correlator means.
Claim 2
Independent Claim
92 words
A device for calculating the approximate value of the inner product of two vectors whose component values are expressed as floating-point numbers wherein each number consists of a sign, an exponent, and a mantissa comprising: means for setting the mantissas of said component values substantially equal to one; exponent generator means for associating with each exponent its corresponding sign to form two vectors of the signed exponents; correlator means to form the inner product of said vectors of signed exponents; and coupling means interconnecting said exponent generator means with said correlator means.
Claim 3
Independent Claim
79 words
A device for calculating an approximate value of the inner product of two vectors whose component values are expressed as floating-point numbers, wherein each number consists of a sign, an exponent, and a mantissa, said device comprising: means for separating the signs and exponents from the mantissas to form two derived vectors consisting of only the signed exponents of said component values; and correlator means coupled to said separating means for calculating the inner product of said derived vectors.
Claim 4
Independent Claim
79 words
A device for calculating an approximate value of the inner product of two vectors whose component values are expressed as floating-point numbers, wherein each number consists of a sign, an exponent, and a mantissa, said device comprising: means for separating the signs and exponents from the mantissas to form two derived vectors consisting of only the signed exponents of said component values; and correlator means coupled to said separating means for calculating the inner product of said derived vectors.
Claim 5
Dependent Claim
95 words
A compact digital apparatus for approximately correlating two time series of digital quantities expressed as floating-point numbers comprising: means for removing the signed exponents from the floating-point numbers of said two time series; and correlator means coupled to said removing means for using said signed exponents to correlate said two time series, said correlator means including a multiplier means for multiplying said signed exponents in pairs, one of said pairs of signed exponents being selected from one time series, and the other of said pairs of signed exponents being selected from the other time series.
Claim 6
Dependent Claim
95 words
A compact digital apparatus for approximately correlating two time series of digital quantities expressed as floating-point numbers comprising: means for removing the signed exponents from the floating-point numbers of said two time series; and correlator means coupled to said removing means for using said signed exponents to correlate said two time series, said correlator means including a multiplier means for multiplying said signed exponents in pairs, one of said pairs of signed exponents being selected from one time series, and the other of said pairs of signed exponents being selected from the other time series.
Claim 7
Dependent Claim
30 words
The apparatus of claim 3 wherein, said correlator means includes an adder coupled to said multiplier means to algebraically add the products of multiplication of said pairs of signed exponents.
Claim 8
Independent Claim
71 words
An apparatus for calculating the inner product of two vectors whose component values are expressed as floating point numbers wherein each number consists of a sign, an exponent, and a mantissa, comprising: means for selecting only the signs and exponents of said floating point numbers; and means coupled to said selecting means for using the signs and exponents without the mantissa values to calculate the inner product of said two vectors.
Claim 9
Independent Claim
71 words
An apparatus for calculating the inner product of two vectors whose component values are expressed as floating point numbers wherein each number consists of a sign, an exponent, and a mantissa, comprising: means for selecting only the signs and exponents of said floating point numbers; and means coupled to said selecting means for using the signs and exponents without the mantissa values to calculate the inner product of said two vectors.
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) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |