US3840724A
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Scalar multiplier
Assignee: Inductosyn Corp
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Filing: 1973-04-25
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Granted: 1974-10-08
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Expires: 1993-04-25
Abstract
Abstract Disclosed is a scalar multiplier which is responsive to input pulses representing a measurement in a first measurement system and converts such pulses into output pulses representing an equivalent measurement in a second measurement system, this second measurement system having a constant relationship to said first measurement system. The scalar, or converter as it may be called, typically multiplies or divides the input pulses received which represent a unit of a first measurement system by a constant to obtain the number of output pulses which represent the equivalent in the second measurement system. The scalar multiplier insures that the output is correct to within plus or minus one-half bit (input pulse). Conversion in the disclosed scalar multiplier offers a bilateral operation, that is, it may be either from the first measuring system to the second measuring system or from the second measuring system to the first measuring system, in effect multiplying, or dividing, at option.
Inventors
- 👤 R Tripp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:18
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/68
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
A system for converting values between first and second measuring systems, having inputs of clock pulses and of data pulses, said data pulses being representative of one of said measuring systems, comprising output gating means for gating said clock pulses to represent the data of the other of said measuring systems, a first counter for counting pulses of said first system, a second counter for counting pulses of said second system, said output gating means being controlled by a selected count of said first counter, said selected count being determined by signals provided by said second counter and logic means for automatically varying the maximum count state of said second counter in accordance with a predetermined repetitive schedule.
Claim 2
Independent Claim
118 words
A system for converting values between first and second measuring systems, having inputs of clock pulses and of data pulses, said data pulses being representative of one of said measuring systems, comprising output gating means for gating said clock pulses to represent the data of the other of said measuring systems, a first counter for counting pulses of said first system, a second counter for counting pulses of said second system, said output gating means being controlled by a selected count of said first counter, said selected count being determined by signals provided by said second counter and logic means for automatically varying the maximum count state of said second counter in accordance with a predetermined repetitive schedule.
Claim 3
Dependent Claim
28 words
A system according to claim 1 wherein said one of said measuring systems is in inch dimensions, and said other of said measuring systems is in metric dimensions.
Claim 4
Dependent Claim
28 words
A system according to claim 1 wherein said one of said measuring systems is in metric dimensions and said other of said measuring systems is in inch dimensions.
Claim 5
Dependent Claim
54 words
A system according to claim 1 wherein said second counter comprises a segment counter and a segment pulse counter for counting pulses in a said segment, and means controlled by said segment pulse counter for stepping said segment counter when said segment pulse counter registers a number of pulses determined by said segment counter.
Claim 6
Dependent Claim
22 words
A system according to claim 4 including means for selectively determining the count-up or count-down state of said first and second counters.
Claim 7
Dependent Claim
42 words
A system according to claim 5 including means for detecting a count determined by said segment counter and means for setting said segment pulse counter to zero and for incrementing said segment counter when said detected count occurs during said count-up state.
Claim 8
Dependent Claim
49 words
A system according to claim 5 including means for detecting a zero state of said segment pulse counter and means for loading said segment pulse counter to a count determined by said segment counter and for decrementing said segment counter when said zero state occurs during said count-down state.
Claim 9
Dependent Claim
73 words
A systeM according to claim 5 wherein said segment counter counts four segments of a group of 50 pulses, three of said segments consisting of 13 pulses and one of said segments consisting of 11 pulses as counted by said segment pulse counter, said selected count of said first counter being alternatively 2 or 3 pulses, each step of said segment pulse counter representing 2 or 3 completed counts of said first counter.
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) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |