Patent US3686478A successfully refreshed from Google Patents.
US3686478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic ballistic computer circuit
Assignee: United States Department of the Army
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Filing: 1970-11-13
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Granted: 1972-08-22
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Expires: 1990-11-13
Abstract
Abstract An all electronic, tank housed, ballistics computer circuit which upon the receipt of laser BCD range signals from a laser range finder, provides electrical signals containing information which is representative of a plurality of straight line slopes and intercepts so as to electronically approximate a known ballistic function for gun positioning purposes. The received BCD signals are converted to analog ac range and dc range information. The dc range information is utilized with a reference voltage to selectively enable logic circuitry which, when so enabled, permits selected solid stage switches to pass electrically analoged slopes and intercepts developed from the analog ac range information and an ac reference voltage, respectively.
Inventors
- 👤 Ira I Goldberg
- 👤 Paul M Marasco
- 👤 Kenneth R Pfleger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:05
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/80; G06G7/12; G06G7/26; G06G7/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
323 words
An electronic ballistic computer circuit for generating a ballistic function in the process of positioning the gun of a military weapon upon the receipt of range finder signals and the conversion thereof into electrical pulses, comprising: means receiving the electrical pulses for providing ac analog voltages responsive thereto and representative thereof; conversion means connected to said receiving means for providing dc voltages upon the receipt thereby of said ac analog voltages; logic means connected to said conversion means for providing switch control signals upon the receipt of said dc voltages, a reference voltage, and positive and negative bias voltages; function generating means connected to said logic means and said receiving means for providing signals representative of an electrical facsimile of a ballistic function upon the receipt of said ac analog voltages and said switch control signals; means connected to said function generating means for providing gun positioning signals upon the receipt of said electrical facsimile signals, and means connected to said function generating means for providing an ac reference voltage thereto, and wherein said reference voltage provided to said logic means is a negative dc voltage, and said function generating means comprises: a first plurality of switches for receiving said switch control signals; a second plurality of switches for also receiving said switch control signals; a first voltage divider resistor network connected to said first switch plurality and receiving said ac analog voltage for offering preselected amounts of ohmic resistance thereto to control the voltage levels supplied to each switch of said first plurality, a second voltage divider resistor network connected to said second switch plurality and receiving said ac reference voltage for offering preselected amounts of ohmic resistance thereto to control the voltage levels supplied to each switch of said second plurality, and wherein said first and second switch pluralities respectively pass selected levels of said ac analog voltages and said ac reference voltage upon the reCeipt of said switch control signals.
Claim 2
Dependent Claim
323 words
An electronic ballistic computer circuit for generating a ballistic function in the process of positioning the gun of a military weapon upon the receipt of range finder signals and the conversion thereof into electrical pulses, comprising: means receiving the electrical pulses for providing ac analog voltages responsive thereto and representative thereof; conversion means connected to said receiving means for providing dc voltages upon the receipt thereby of said ac analog voltages; logic means connected to said conversion means for providing switch control signals upon the receipt of said dc voltages, a reference voltage, and positive and negative bias voltages; function generating means connected to said logic means and said receiving means for providing signals representative of an electrical facsimile of a ballistic function upon the receipt of said ac analog voltages and said switch control signals; means connected to said function generating means for providing gun positioning signals upon the receipt of said electrical facsimile signals, and means connected to said function generating means for providing an ac reference voltage thereto, and wherein said reference voltage provided to said logic means is a negative dc voltage, and said function generating means comprises: a first plurality of switches for receiving said switch control signals; a second plurality of switches for also receiving said switch control signals; a first voltage divider resistor network connected to said first switch plurality and receiving said ac analog voltage for offering preselected amounts of ohmic resistance thereto to control the voltage levels supplied to each switch of said first plurality, a second voltage divider resistor network connected to said second switch plurality and receiving said ac reference voltage for offering preselected amounts of ohmic resistance thereto to control the voltage levels supplied to each switch of said second plurality, and wherein said first and second switch pluralities respectively pass selected levels of said ac analog voltages and said ac reference voltage upon the reCeipt of said switch control signals.
Claim 3
Dependent Claim
227 words
A function generator for providing an electrical facsimile of a ballistic function upon the receipt of ac analog range and ac reference voltages and further upon the receipt of dc range switching signals, comprising: first and second pluralities of switches connected to receive said switching signals; first and second voltage dividers connected respectively to said first and second switch pluralities for respectively offering preselected amounts of ohmic resistance to said analog voltages and said ac reference voltages to control the voltage levels supplied to each switch of said switch pluralities, and wherein selected switches of said first and second switch pluralities pass selected levels of said ac analog voltages and said ac reference voltages upon the receipt of said switching signals; said first switch plurality and said second switch plurality comprise a like number of switches; said switching signals are provided to selected pairs of switches, one each in each of said switch pluralities, whereby one or more of said switch pairs may be rendered operative to pass said ac analog voltages and said ac reference voltages to the exclusion of the remaining switches in said switch pluralities, and said first voltage divider comprises a plurality of series-connected resistors connected to receive said ac analog voltages, each of said resistors of preselected ohmic value and each connected to at least one switch of said first switch plurality.
Claim 4
Dependent Claim
227 words
A function generator for providing an electrical facsimile of a ballistic function upon the receipt of ac analog range and ac reference voltages and further upon the receipt of dc range switching signals, comprising: first and second pluralities of switches connected to receive said switching signals; first and second voltage dividers connected respectively to said first and second switch pluralities for respectively offering preselected amounts of ohmic resistance to said analog voltages and said ac reference voltages to control the voltage levels supplied to each switch of said switch pluralities, and wherein selected switches of said first and second switch pluralities pass selected levels of said ac analog voltages and said ac reference voltages upon the receipt of said switching signals; said first switch plurality and said second switch plurality comprise a like number of switches; said switching signals are provided to selected pairs of switches, one each in each of said switch pluralities, whereby one or more of said switch pairs may be rendered operative to pass said ac analog voltages and said ac reference voltages to the exclusion of the remaining switches in said switch pluralities, and said first voltage divider comprises a plurality of series-connected resistors connected to receive said ac analog voltages, each of said resistors of preselected ohmic value and each connected to at least one switch of said first switch plurality.
Claim 5
Dependent Claim
79 words
A function generator for providing an electrical facsimile of a ballistic function upon the receipt of ac analog range and ac reference voltages and further upon the receipt of dc range switching signals, as described in claim 2, wherein said second voltage divider comprises: a plurality of series-connected resistors connected to receive said ac reference voltages, each of said last mentioned resistors of preselected ohmic value and each connected to at least one switch of said second switch plurality.
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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |