US3761689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analog-hybrid computer using an automatic connection type switch matrix
Assignee: Hitachi Ltd
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Filing: 1972-02-04
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Granted: 1973-09-25
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Expires: 1992-02-04
Abstract
Abstract In an analog-hybrid computer, an automatic connection type switch matrix device is installed between the digital computer and the analog computer. The switch matrix device is operated to establish connections among analog operational devices in the analog computer in response to command signals from the digital computer, thereby forming the desired analog operational circuit, and a suitable outer operational device is connected to a free connecting terminal of the switch matrix device.
Inventors
- 👤 S Watanabe
- 👤 N Yokozawa
- 👤 S Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:44
CPC Classifications
G; G06; G06J; G06J1/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
185 words
In an automatic connection type analog-hybrid computer comprising: an analog computer having a plurality of analog operational elements; a digital computer; and means for forming a desired analog operational circuit within said analog computer from selected ones of said analog operational elements; the improvement wherein said forming means comprises an automatic connection type switching matrix device having first and second conductive lines, predetermined ones of said first and second conductive lines being connected to said analog operational elements, and a plurality of crosspoint switch means disposed between said first and second lines and responsive to control signals from said digital Computer for switching the connections between preselected ones of said first and second lines, at least one outer operational device disposed at the outside of said analog computer, and at least one set of free connecting terminals connected to said crosspoint switch means for connecting said at least one outer operational device to said analog computer by switching of said switching matrix device so as to form a desired analog operational circuit from selected ones of said analog operational elements and said outer operational device.
Claim 2
Dependent Claim
185 words
In an automatic connection type analog-hybrid computer comprising: an analog computer having a plurality of analog operational elements; a digital computer; and means for forming a desired analog operational circuit within said analog computer from selected ones of said analog operational elements; the improvement wherein said forming means comprises an automatic connection type switching matrix device having first and second conductive lines, predetermined ones of said first and second conductive lines being connected to said analog operational elements, and a plurality of crosspoint switch means disposed between said first and second lines and responsive to control signals from said digital Computer for switching the connections between preselected ones of said first and second lines, at least one outer operational device disposed at the outside of said analog computer, and at least one set of free connecting terminals connected to said crosspoint switch means for connecting said at least one outer operational device to said analog computer by switching of said switching matrix device so as to form a desired analog operational circuit from selected ones of said analog operational elements and said outer operational device.
Claim 3
Dependent Claim
30 words
An automatic connection type analog-hybrid computer according to claim 1, wherein said plurality of analog operational elements include at least one of an integrator, a multiplier, and an adder circuit.
Claim 4
Dependent Claim
25 words
An automatic connection type analog-hybrid computer according to claim 1, further comprising analog-digital converter circuitry connected between said outer operational element and said digital computer.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |