US3566096A
Expired / Lapsed
US
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Digital ratiometer
Assignee: Pacific Industries Inc
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Filing: 1966-07-25
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Granted: 1971-02-23
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Expires: 1986-07-25
Abstract
Abstract A binary coded decimal rate multiplier for computing the ratio of two input decimal numbers comprising a numerator and a denominator. Using conventional coded counters, such as the 1-24-8 counter or the 1-2-2-4 counter, a 1-1-2-5 binary code is used as the entry code for the denominator.
Inventors
- 👤 Harry B Schultheis Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:16
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/68; G06F7/62
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
202 words
In a system for computing the ratio of two input decimal numbers comprising a numerator and a denominator, the combination of: said A binary coded decimal rate multiplier including a counter and means for indicating the count state of said counter and including a first input for a series of input pulses directed to said counTer, a second input for the denominator, and an output, with the denominator presented in a 1-1-2-5 binary code, and with said output comprising a series of pulses having an average rate equal to the product of the first input pulse rate and the denominator; a binary coded decimal preset counter with said multiplier output as the counter input and including means for presetting to the numerator and producing an output pulse when the input count corresponds to the preset numerator; and control means having said preset counter output pulse as an input, for connecting a series of input pulses to said first input of said multiplier on receipt of a start command and disconnecting said input series when said preset counter output pulse occurs, with the ratio of the numerator and denominator being the count state of said multiplier counter when said input series is stopped.
Claim 2
Dependent Claim
202 words
In a system for computing the ratio of two input decimal numbers comprising a numerator and a denominator, the combination of: said A binary coded decimal rate multiplier including a counter and means for indicating the count state of said counter and including a first input for a series of input pulses directed to said counTer, a second input for the denominator, and an output, with the denominator presented in a 1-1-2-5 binary code, and with said output comprising a series of pulses having an average rate equal to the product of the first input pulse rate and the denominator; a binary coded decimal preset counter with said multiplier output as the counter input and including means for presetting to the numerator and producing an output pulse when the input count corresponds to the preset numerator; and control means having said preset counter output pulse as an input, for connecting a series of input pulses to said first input of said multiplier on receipt of a start command and disconnecting said input series when said preset counter output pulse occurs, with the ratio of the numerator and denominator being the count state of said multiplier counter when said input series is stopped.
Claim 3
Dependent Claim
25 words
A system as defined in claim 1 in which the numerator is a multiple of ten and the ratio is the reciprocal of the denominator.
Claim 4
Dependent Claim
23 words
A system as defined in claim 1 in which said rat multiplier counter includes a plurality of 1-2-4-8 coded decades connected in cascade.
Claim 5
Dependent Claim
23 words
A system as defined in claim 1 in which said rate multiplier counter includes a plurality of 1-2-2-4 coded decades connected in cascade.
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |