US3555514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital computer instruction sequencing to carry out digital differential analysis
Assignee: Hitachi Ltd
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Filing: 1967-12-06
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Granted: 1971-01-12
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Expires: 1987-12-06
Abstract
Abstract A DIGITAL COMPUTER FOR PERFORMING THE ARITHMETIC OPERATIONS FOR THE DIFFERENTIAL ANALYSIS OF DATA IN ACCORDANCE WITH A STORED PROGRAM. IN THIS DIGITAL COMPUTER, THE ARITHMETIC OPERATIONS FOR THE DIFFERENTIAL ANALYSIS ARE EXECUTED BY SPECIAL INSTRUCTIONS WHICH CAN BE HANDLED IN A MANNER ENTIRELY SIMILAR TO THE HANDLING OF THOSE INSTRUCTIONS EMPLOYED IN A GENERAL PURPOSE COMPUTER.
Inventors
- 👤 Mamoru Hosaka
- 👤 Fumio Ando
- 👤 Masathugu Yoshitake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:26
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/60; G06F7/64
Claims Analysis
Total Claims: 0
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |